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    <REQ-IF-HEADER IDENTIFIER="header-se-water-treatment-plant">
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              <TYPE><DATATYPE-DEFINITION-STRING-REF>string-type</DATATYPE-DEFINITION-STRING-REF></TYPE>
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          </SPEC-ATTRIBUTES>
        </SPECIFICATION-TYPE>
        <RELATION-GROUP-TYPE IDENTIFIER="linkset-type" LAST-CHANGE="2026-04-24T20:24:29.901Z" LONG-NAME="Document Linkset"/>
      </SPEC-TYPES>
      <SPEC-OBJECTS>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:ARC-DECISIONS-001" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC-DECISIONS-001">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC: Chemical Storage and Dosing Subsystem — Centralised chemical building with distributed injection points. All bulk chemical storage is co-located in a single chemical building with secondary containment, shared ventilation, and unified safety monitoring, rather than distributing storage to each treatment process. Injection points are at the respective process locations (rapid-mix, flocculation inlet, contact tank, clearwell). This topology minimises the number of chlorine gas handling areas to one (reducing gas detection coverage requirements), consolidates spill containment infrastructure, and enables a single emergency scrubber to serve the chlorine room. The trade-off is longer chemical piping runs (up to 150m for PAC to raw water intake), which requires consideration of slurry settling velocity for PAC and polymer gel formation in deadleg sections. Vacuum chlorine feed was selected over direct-pressure feed to ensure inherent safety: any downstream leak draws air inward rather than releasing chlorine gas.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="architecture; chemical-dosing; session-207">
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        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
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      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:ARC-DECISIONS-002" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC-DECISIONS-002">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC: Disinfection Subsystem — Dual-barrier UV+chlorine CT design. UV reactors are placed upstream of chlorine contact to provide primary Cryptosporidium barrier independent of chemical disinfection, while the chlorine contact tank provides the primary bacterial and viral inactivation barrier plus distribution system residual. This sequence was chosen over chlorine-first because UV efficacy is not affected by turbidity in the 0.05-0.3 NTU post-filtration range, while placing UV downstream of chlorine would require UV dose correction for chlorine demand. The 3+1 reactor configuration provides N+1 redundancy at 75% capacity, matching the plant's single-train-offline design basis. Medium-pressure lamps were selected over low-pressure high-output for their broader germicidal spectrum and smaller footprint despite higher energy cost (~0.04 kWh/m3 vs 0.02 kWh/m3).">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
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          <ATTRIBUTE-VALUE-STRING THE-VALUE="architecture; disinfection; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
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        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:ARC-DECISIONS-003" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC-DECISIONS-003">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC: Filtration Subsystem — Dual-media gravity filtration with combined air-water backwash was selected over mono-media or membrane filtration. Dual-media (anthracite/sand) provides depth filtration with longer filter runs and lower headloss development than mono-sand, reducing backwash frequency and water consumption. Gravity filters were chosen over pressure filters for the 50 ML/d capacity due to lower capital cost, easier media inspection, and simpler maintenance access. Combined air-water backwash with a separate air scour blower was chosen over surface wash or water-only backwash to achieve thorough media cleaning without the mechanical complexity of rotating surface wash arms. The 8-cell N+1 configuration with two parallel trains provides redundancy for backwash and maintenance while limiting individual cell filtration rate to 7 m/hr maximum, staying within the AWWA recommended range. Membrane filtration was rejected due to higher energy consumption (0.15 kWh/m3 for membranes vs 0.02 kWh/m3 for gravity media) and greater chemical cleaning requirements, inconsistent with the SYS-REQS-010 energy target.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="architecture; filtration; session-208">
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        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
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      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:ARC-DECISIONS-004" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC-DECISIONS-004">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC: Sedimentation Subsystem — Inclined plate settlers were selected over conventional horizontal-flow basins or dissolved air flotation. Inclined plates achieve equivalent settling performance in one-third the footprint by reducing effective settling depth to 50 mm, critical for the constrained plant site. Three parallel basins with N+1 redundancy provide 35 ML/d with one basin offline, aligned with SYS-REQS-005. Chain-and-flight scrapers were chosen over travelling bridge scrapers due to lower headroom requirements and simpler mechanical drives. DAF was considered but rejected for this application because raw water turbidity is consistently below 50 NTU and algae loading is seasonal rather than chronic, making the energy cost of DAF air saturation systems unjustifiable against the SYS-REQS-010 energy efficiency target.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="architecture; sedimentation; session-208">
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        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:ARC-DECISIONS-005" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC-DECISIONS-005">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC: Coagulation and Flocculation — Separate rapid-mix and multi-stage flocculation chosen over hydraulic inline static mixers. Three-stage tapered energy provides superior floc formation for the variable NOM and turbidity profile of the source water (5–200 NTU seasonal range). The streaming current detector provides closed-loop coagulant dose control to handle rapid raw water quality changes that a flow-proportional-only scheme cannot track. Dedicated coagulation pH loop avoids coupling with finished-water pH adjustment. Parallel trains (N+1) ensure maintenance without capacity reduction.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="architecture; coag-floc; session-209">
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        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
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      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:ARC-DECISIONS-006" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC-DECISIONS-006">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC: Raw Water Intake — VFD-controlled vertical turbine pumps selected over fixed-speed centrifugals to enable continuous flow modulation matching plant demand without throttling losses. 3+1 pump arrangement chosen to meet SYS-REQS-005 (N-1 redundancy at average demand). Electromagnetic flow meters chosen over ultrasonic for superior accuracy (±0.5% vs ±1-2%) on this pipe size, critical because the master flow signal drives all downstream chemical dosing proportionality. Raw water quality monitoring placed at intake rather than headworks to maximise early warning time (3-5 min transport lag advantage).">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="architecture; raw-water-intake; session-209">
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        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
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      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:ARC-DECISIONS-007" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC-DECISIONS-007">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC: SCADA and Instrumentation — Distributed PLC architecture with centralised historian chosen over monolithic DCS. Each process area has an independent PLC executing local control logic, which ensures the plant continues operating in degraded mode when the SCADA server or network backbone fails. Hot-standby SCADA servers with OPC-UA aggregation provide the centralised view without being a single point of failure. IEC 62443 zone-and-conduit model chosen for cybersecurity because the plant must provide read-only telemetry to external agencies without exposing the OT network. Alternative considered: unified DCS platform — rejected because vendor lock-in limits future expansion and does not naturally support the DMZ architecture required for regulatory reporting.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="architecture; scada; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:ARC-DECISIONS-008" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC-DECISIONS-008">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC: Electrical Power and Emergency Generation — Single diesel generator with UPS bridge chosen over dual-generator N+1 redundancy. The 50 ML/d plant's critical load (~1.1 MW) fits within a single 1.5 MVA generator with adequate margin. The UPS bridges the 10-second transfer gap for SCADA and instrumentation. Dual utility feeds at 11 kV with automatic bus transfer provide the first tier of resilience before diesel starts. N+1 generation was considered but rejected: the plant is not classified as a critical national infrastructure site, and the additional capital and maintenance cost of a second generator is not justified when the utility supply has &gt;99.95% historical availability. The load-shedding strategy (non-critical areas shed first) ensures 35 ML/d minimum capacity on generator alone.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="architecture; electrical-power; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:ARC-DECISIONS-009" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC-DECISIONS-009">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC: Sludge Handling — Belt filter press dewatering selected over centrifuge and drying beds. Belt presses achieve the 18% solids target with lower energy consumption and capital cost than centrifuges at this plant scale (approximately 1.5 dry tonnes/day average sludge production). Drying beds were rejected due to land area requirements and weather dependence in the plant's climate. Gravity thickening before dewatering reduces polymer consumption by concentrating feed solids from &lt;1% to 2-4%. Supernatant return limited to 10% of inflow to avoid recycling Cryptosporidium oocysts and overwhelming coagulation.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="architecture; sludge; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:ARC-DECISIONS-010" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC-DECISIONS-010">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="ARC: Treated Water Storage and Distribution Pumping — Two-cell clear well with VFD-controlled high-lift pumps selected over elevated tower storage. Below-ground clear well provides superior CT contact time, earthquake resilience, and aesthetic acceptability compared to an elevated tank. VFD pumps maintain constant pressure across the wide demand range (200-600 L/s) without pressure-reducing valves, saving 8-12% energy versus fixed-speed pumps with throttling. Hydropneumatic surge vessel selected for transient protection because the distribution main is 3.2 km to the first service reservoir — long enough for damaging water hammer if a pump trips at full speed without protection. Fire reserve weir ensures 1 ML is always available regardless of operational drawdown.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="architecture; treated-water; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-001" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-001">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Alum Bulk Storage and Metering System and the Coagulation and Flocculation Subsystem SHALL deliver liquid alum through a 25mm PVC injection quill at the rapid-mix basin inlet, with a check valve and anti-siphon air gap to prevent process water backflow into the chemical storage area.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; chemical-dosing; alum; coagulation; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
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        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
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      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-002" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-002">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Polymer Preparation and Feed System and the Coagulation and Flocculation Subsystem SHALL deliver diluted polymer solution through a diffuser nozzle at the first flocculation stage inlet, with injection velocity sufficient to achieve initial mixing within 5 seconds of contact.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; chemical-dosing; polymer; coagulation; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
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        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
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      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-003" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-003">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Chlorine Gas Storage and Feed System and the Disinfection Subsystem SHALL deliver chlorine solution via a vacuum-operated ejector with motive water supply at 400–600 kPa, injecting into the chlorine contact tank inlet through a diffuser providing uniform distribution across the tank cross-section.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; chemical-dosing; chlorine; disinfection; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
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      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-004" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-004">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Caustic Soda Storage and Feed System and the Treated Water Storage and Distribution Pumping Subsystem SHALL inject caustic soda solution at the clearwell outlet weir with static mixer achieving 95% mixing uniformity within 10 pipe diameters downstream.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
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          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; chemical-dosing; caustic; distribution; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-005" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-005">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Chemical Dosing Control System and the SCADA and Instrumentation Subsystem SHALL exchange all chemical feed pump status, dose rates, tank levels, analyser readings, and alarm conditions via Modbus RTU at 9600 baud with 1-second polling interval, using dedicated RS-485 bus segments per chemical area.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; chemical-dosing; scada; control; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-006" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-006">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Chemical Containment and Emergency Safety System and the SCADA and Instrumentation Subsystem SHALL provide hardwired discrete inputs for all gas detection alarms, scrubber status, and emergency shutdown states, independent of the Modbus communication path, with alarm response time not exceeding 500 milliseconds from detection to SCADA annunciation.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; chemical-dosing; safety; scada; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-007" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-007">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Fluorosilicic Acid Storage and Feed System and the Treated Water Storage and Distribution Pumping Subsystem SHALL inject fluorosilicic acid downstream of the caustic soda injection point with a minimum 2-metre separation to prevent localised precipitation, using Hastelloy C-276 injection quill and PVDF tubing rated for 23% HFS acid.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; chemical-dosing; fluoride; distribution; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-008" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-008">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Filtration Subsystem and the UV Disinfection Reactor SHALL deliver filtered water through a 600mm header with flow measurement (electromagnetic flowmeter, ±0.5% accuracy) and UVT measurement (online spectrophotometer at 254nm) upstream of the reactor inlet manifold.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; disinfection; filtration; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-009" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-009">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the UV Disinfection Reactor and the Chlorine Contact Tank SHALL convey UV-treated water through a 600mm pipeline with chlorine injection point located at least 3 pipe diameters upstream of the contact tank inlet diffuser wall to ensure initial mixing before baffled flow begins.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; disinfection; uv; contact-tank; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-010" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-010">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Disinfection Residual Analyser Network and the SCADA and Instrumentation Subsystem SHALL transmit chlorine residual values from all 5 analyser locations via 4-20 mA signals with 1-second update rate, plus sample flow status as discrete inputs, to dedicated SCADA I/O modules in the disinfection area remote I/O cabinet.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; disinfection; scada; analyser; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-011" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-011">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Sedimentation Subsystem and the Dual-Media Gravity Filter Cell SHALL convey settled water via a common filter influent channel at a maximum flow of 900 m3/hr, with settled water turbidity not exceeding 2 NTU under normal conditions and 5 NTU during storm events, distributed to individual filter cells via adjustable weir gates.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; filtration; sedimentation; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-012" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-012">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Dual-Media Gravity Filter Cell and the Treated Water Storage and Distribution Pumping Subsystem SHALL convey filtered water via individual filter effluent pipes into a common filtered water header at a maximum combined flow of 900 m3/hr, with each filter effluent pipe fitted with a motorised butterfly valve for isolation and an electromagnetic flowmeter for flow measurement.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; filtration; treated-water; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-013" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-013">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Backwash Supply System and the Dual-Media Gravity Filter Cell SHALL deliver backwash water via a common backwash header with individual motorised isolation valves per cell, at a flow rate of 800 to 1000 m3/hr per cell at a supply pressure of 12 to 18 m head, with Venturi-based flow measurement at plus or minus 2% accuracy.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; filtration; backwash; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-014" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-014">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Air Scour Blower System and the Filter Underdrain and Support Gravel System SHALL deliver low-pressure air via a common air header with individual non-return and isolation valves per cell, at 1400 to 1600 Nm3/hr per cell at 0.4 to 0.6 bar gauge, with the air entering the underdrain plenum and distributing through underdrain orifices.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; filtration; air-scour; underdrain; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-015" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-015">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Filter Control and Instrumentation Panel and the SCADA and Instrumentation Subsystem SHALL communicate via Modbus TCP over the plant Ethernet LAN, transmitting filter status, turbidity, headloss, flow rate, and valve positions at a minimum update rate of 1 second, and receiving operator commands for manual backwash initiation, setpoint changes, and filter mode selection.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; filtration; scada; control; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-016" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-016">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Filter Control and Instrumentation Panel and the Backwash Supply System SHALL comprise 4-20 mA analog signals for backwash pump speed demand and discrete digital I/O for pump start/stop, valve open/close, and backwash sequence step status, with all control signals fail-safe to pump-stop on signal loss.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; filtration; control; backwash; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-017" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-017">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Filter-to-Waste System and the Sludge Handling Subsystem SHALL convey filter-to-waste water by gravity via a 300 mm diameter pipe to the backwash waste holding tank at flows up to 150 m3/hr per filter cell, with a non-return valve to prevent backflow from the waste holding tank during high-level conditions.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; filtration; sludge; filter-to-waste; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-018" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-018">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Filter Control and Instrumentation Panel and the Air Scour Blower System SHALL comprise discrete digital I/O for blower start/stop and run confirmation, with a hardwired interlock preventing blower start when filter water level is below the media surface level setpoint.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; filtration; control; air-scour; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-019" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-019">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Coagulation and Flocculation Subsystem and the Sedimentation Basin Inlet Distribution System SHALL convey flocculated water via a common distribution channel at flows up to 900 m3/hr with a maximum channel velocity of 0.3 m/s, maintaining formed floc integrity through smooth transitions and no sharp bends within 5 m of the basin inlet.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; sedimentation; coagulation; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-020" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-020">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Sedimentation Effluent Launder and Weir System and the Filtration Subsystem SHALL convey settled water via a common filter influent channel at flows up to 900 m3/hr with settled water turbidity not exceeding 2 NTU under normal operation and 5 NTU during storm surge conditions, with channel hydraulics providing equal head to all filter cells.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; sedimentation; filtration; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-021" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-021">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between the Sludge Scraper and Hopper System and the Sludge Handling Subsystem SHALL convey settled sludge by gravity at 2 to 3 percent solids concentration via 200 mm diameter sludge withdrawal pipes with pneumatic mud valves, each hopper discharging up to 50 m3/hr during desludge cycles of 5 to 10 minutes duration.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; sedimentation; sludge; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-022" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-022">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Raw Water Intake Subsystem and Rapid Mix Chamber SHALL convey raw water via a gravity or pumped main at flows from 50% to 110% of design capacity with inlet turbidity measurement transmitted to SCADA within 5 seconds of sampling.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; coag-floc; raw-water; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-023" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-023">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Alum Bulk Storage and Metering System and Rapid Mix Chamber SHALL deliver liquid aluminium sulphate at 0–120 L/hr via a Hastelloy C-276 injection quill positioned in the high-shear zone, with flow measurement accuracy of ±2%.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; coag-floc; chemical; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-024" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-024">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Rapid Mix Chamber and Flocculation Basin Train SHALL convey coagulated water via a submerged orifice or short channel with a maximum head loss of 50 mm to avoid floc breakup during transfer.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; coag-floc; internal; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-025" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-025">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Flocculation Basin Train and Sedimentation Basin Inlet Distribution System SHALL transfer flocculated water at the full design flow range with a maximum approach velocity of 0.3 m/s to prevent floc shearing.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; coag-floc; sedimentation; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-026" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-026">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Streaming Current Detector and SCADA and Instrumentation Subsystem SHALL transmit streaming current index as a 4–20 mA analogue signal over a dedicated shielded pair, with data logging at 1-second intervals and alarm thresholds configurable by the operator.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; coag-floc; scada; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-027" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-027">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Coagulation pH Control System and Caustic Soda Storage and Feed System SHALL provide a 4–20 mA trim signal to adjust caustic soda dose rate with a response time of not more than 10 seconds from pH deviation detection to dose adjustment initiation.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; coag-floc; ph-chemical; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-028" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-028">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Intake Screen and Trashrack Assembly and Raw Water Pumping Station SHALL convey screened raw water via a gravity channel with a maximum velocity of 0.6 m/s to prevent resuspension of settled debris.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; raw-water-intake; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-029" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-029">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Raw Water Pumping Station and Flow Measurement and Control System SHALL convey pumped raw water via a DN750 rising main with the electromagnetic flow meter installed at a minimum of 5 pipe diameters downstream of any bend or valve.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; raw-water-intake; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-030" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-030">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Raw Water Quality Monitoring Station and SCADA and Instrumentation Subsystem SHALL transmit all measured parameters via 4–20 mA analogue signals or Modbus RTU over RS-485 with polling at not more than 5-second intervals.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; raw-water-intake; scada; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-031" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-031">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Process Instrumentation Field Network and Distributed PLC Network SHALL use 4-20 mA HART for analog instruments and Modbus RTU at 19200 baud on dedicated RS-485 bus segments, with a maximum of 31 devices per segment and end-to-end cable length not exceeding 1200 m.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; scada; field-to-plc; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-032" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-032">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Distributed PLC Network and Industrial Network Infrastructure SHALL use Ethernet/IP over redundant fibre-optic links at 100 Mbps minimum, with each PLC supporting dual Ethernet ports for network redundancy.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; scada; plc-to-network; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-033" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-033">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Industrial Network Infrastructure and Master SCADA Server and Historian SHALL use OPC-UA with a maximum data transfer latency of 500 ms from PLC scan completion to historian storage, supporting a minimum of 800 tags at 1-second polling.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; scada; network-to-server; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-034" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-034">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Master SCADA Server and Operator HMI Workstations SHALL deliver screen updates within 1 second of server data receipt, with alarm pop-ups displayed within 2 seconds of PLC alarm detection as required by SYS-REQS-008.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; scada; server-to-hmi; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-035" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-035">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Master SCADA Server and Remote Telemetry and Reporting Gateway SHALL export compliance parameters via a read-only OPC-UA endpoint across the DMZ firewall, with the gateway pulling data at 1-minute intervals and formatting reports per state regulatory template.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; scada; server-to-telemetry; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-036" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-036">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Distributed PLC Network and all process subsystem controllers SHALL exchange I/O data via hardwired signals (4-20 mA, 24 VDC digital) terminating at PLC I/O racks, with each process area PLC hosting sufficient local I/O capacity plus 20% spare for expansion.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; scada; plc-to-process; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-037" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-037">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Emergency Diesel Generator Set and Main Utility Power Switchgear SHALL use an automatic transfer switch rated for the full generator capacity (1.5 MVA) with open-transition transfer completing within 2 seconds and mechanical interlocking to prevent paralleling of generator and utility supplies.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; electrical-power; generator-to-switchgear; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-038" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-038">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Main Utility Power Switchgear and Motor Control Centres SHALL use XLPE/SWA cables rated for the full MCC bus capacity with protection coordination providing fault clearance within 200 ms at the MCC incoming breaker and discrimination with downstream motor starters.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; electrical-power; switchgear-to-mcc; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-039" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-039">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Main Utility Power Switchgear and Uninterruptible Power Supply System SHALL provide a dedicated 415 V feeder with automatic static bypass, and the UPS output SHALL feed a separate critical power distribution board serving SCADA, PLCs, and analysers.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; electrical-power; switchgear-to-ups; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-040" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-040">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Motor Control Centres and Distributed PLC Network SHALL provide hardwired 24 VDC digital I/O for motor run/stop/fault status and VFD speed feedback as a 4-20 mA analog signal, plus Ethernet/IP for extended diagnostics and speed setpoint.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; electrical-power; mcc-to-plc; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-041" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-041">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Sludge Scraper and Hopper System (Sedimentation) and Sludge Holding and Thickening Tank SHALL convey sludge by gravity through 200 mm diameter pipework with isolation valves, delivering sludge at 2-3% solids at a maximum flow rate of 50 m3/hr per basin.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; sludge; sed-to-holding; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-042" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-042">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Filter-to-Waste System (Filtration) and Sludge Holding and Thickening Tank SHALL convey spent backwash water at up to 200 m3 per backwash event through a dedicated 300 mm pipeline, with flow metering to track return water volumes.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; sludge; filter-to-holding; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-043" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-043">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Sludge Holding and Thickening Tank and Mechanical Sludge Dewatering System SHALL deliver thickened sludge at 2-4% solids via progressing cavity pump at a controlled feed rate of 10-25 m3/hr, with inline solids density measurement for dewatering optimisation.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; sludge; holding-to-dewatering; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-044" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-044">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Supernatant and Filtrate Return System and Raw Water Intake Subsystem headworks SHALL return supernatant and filtrate at a maximum combined flow rate not exceeding 10% of concurrent plant inflow, with turbidity monitoring triggering automatic shutoff if return turbidity exceeds 50 NTU.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; sludge; return-to-headworks; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-045" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-045">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Chlorine Contact Tank (Disinfection) and Treated Water Clear Well SHALL convey disinfected water by gravity through a 900 mm diameter pipeline, with the clear well inlet designed to distribute flow evenly across the full width of the receiving cell to minimise short-circuiting.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; treated-water; cct-to-clearwell; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-046" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-046">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Treated Water Clear Well and High-Lift Distribution Pump Station SHALL provide independent suction mains from each clear well cell to a common suction header, with isolation valves permitting single-cell maintenance without interrupting distribution pumping.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; treated-water; clearwell-to-pumps; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-047" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-047">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between High-Lift Distribution Pump Station and the distribution network SHALL include a Woltman flow meter on the common discharge header (accuracy ±1% of reading at flows from 100-700 L/s), a pressure sustaining valve, and connection points for the surge protection vessel.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; treated-water; pumps-to-network; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-048" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-048">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Treated Water Quality Monitoring Station and SCADA and Instrumentation Subsystem SHALL transmit all analyser readings via 4-20 mA to the distribution area PLC, with instrument fault and calibration status as digital inputs, and SHALL support remote calibration initiation from SCADA.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; treated-water; monitoring-to-scada; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:IFC-DEFS-049" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="IFC-DEFS-049">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The interface between Powdered Activated Carbon Feed System and Rapid Mix Chamber SHALL inject PAC slurry at 5-50 mg/L through a dedicated injection quill positioned upstream of the coagulant injection point, with a minimum 2-second contact time before coagulant addition to maximise adsorption of taste-and-odour compounds before floc formation.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Powdered activated carbon must contact raw water before coagulant to adsorb taste-and-odour compounds (geosmin, MIB) while they are still dissolved. Once coagulant is added, PAC particles are encapsulated in floc and adsorption capacity drops. The 2-second minimum separation is derived from AWWA guidance for PAC application upstream of coagulation, which requires sufficient mixing time for initial adsorption before floc formation begins.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-rationale</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Test">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-verification</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="interface; chemical-dosing; session-213">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:STK-NEEDS-001" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="STK-NEEDS-001">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL produce potable water meeting all applicable Safe Drinking Water Act standards and state primary drinking water regulations for a service population of 200,000.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="stakeholder; utility; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:STK-NEEDS-002" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="STK-NEEDS-002">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL have a rated treatment capacity of 50 million litres per day with the ability to meet peak demand of 75 ML/d using all available treatment trains.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="stakeholder; utility; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:STK-NEEDS-003" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="STK-NEEDS-003">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL maintain continuous online monitoring of turbidity, chlorine residual, and pH at all regulatory compliance points, with automated reporting to the state drinking water authority.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="stakeholder; regulatory; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:STK-NEEDS-004" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="STK-NEEDS-004">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL be operable by a crew of no more than 4 operators per shift, with centralised SCADA monitoring enabling a single operator to maintain awareness of all treatment processes.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="stakeholder; operations; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:STK-NEEDS-005" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="STK-NEEDS-005">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL achieve a minimum 4-log removal/inactivation of viruses, 3-log removal/inactivation of Giardia, and 2-log removal/inactivation of Cryptosporidium across the full treatment train.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="stakeholder; public-health; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:STK-NEEDS-006" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="STK-NEEDS-006">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL manage all process waste streams including sludge, backwash water, and chemical spills in compliance with the facility environmental discharge permit, with no unpermitted discharge to the source water body.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="stakeholder; environmental; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:STK-NEEDS-007" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="STK-NEEDS-007">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL provide redundant treatment trains and equipment such that any single unit process or major equipment item can be taken offline for maintenance without interrupting water supply to the distribution network.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="stakeholder; maintenance; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:STK-NEEDS-008" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="STK-NEEDS-008">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL be designed for a minimum 50-year service life for civil structures and 20-year service life for mechanical and electrical equipment, with energy consumption not exceeding 0.4 kWh per cubic metre of treated water at average flow.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="stakeholder; financial; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:STK-NEEDS-009" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="STK-NEEDS-009">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL maintain essential water treatment and distribution capability during loss of utility power for a minimum of 72 hours using on-site emergency generation.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="stakeholder; emergency; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:STK-NEEDS-010" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="STK-NEEDS-010">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL incorporate safety systems for chemical handling including spill containment, gas detection, emergency ventilation, safety showers, and eyewash stations at all chemical storage and dosing areas, in compliance with OSHA Process Safety Management requirements.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="stakeholder; safety; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-001" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-001">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Alum Bulk Storage and Metering System SHALL maintain a minimum of 30 days liquid alum supply at maximum dose rate (80 mg/L at 50 ML/d), requiring a minimum combined storage volume of 60,000 litres.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; chemical-dosing; alum; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-002" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-002">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Alum Bulk Storage and Metering System SHALL meter liquid alum within ±2% of the commanded dose rate over the operating range of 20 to 120 L/hr.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; chemical-dosing; alum; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-003" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-003">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Chlorine Gas Storage and Feed System SHALL operate under vacuum downstream of the cylinder regulator such that any leak in the feed line results in air ingress, not chlorine gas release.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; chemical-dosing; chlorine; safety; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-004" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-004">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When chlorine gas concentration exceeds 1 ppm at any detection point, the Chemical Containment and Emergency Safety System SHALL automatically close all chlorine cylinder valves and activate the emergency scrubber within 5 seconds.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; chemical-dosing; chlorine; safety; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-005" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-005">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="While the chlorine room is occupied or chlorine cylinders are connected, the Chemical Containment and Emergency Safety System SHALL maintain forced exhaust ventilation at a minimum of 20 air changes per hour with the room at negative pressure relative to all adjacent spaces.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; chemical-dosing; chlorine; ventilation; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-006" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-006">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Caustic Soda Storage and Feed System SHALL adjust finished water pH to 7.0–7.5 within ±0.1 pH units of setpoint under steady-state flow conditions, achieving a Langelier Saturation Index between 0.0 and +0.5.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; chemical-dosing; caustic; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-007" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-007">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Fluorosilicic Acid Storage and Feed System SHALL maintain finished water fluoride concentration at 0.7 mg/L ±0.1 mg/L as verified by online fluoride analyser with 4-hour grab sample confirmation.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; chemical-dosing; fluoride; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-008" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-008">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When geosmin or 2-methylisoborneol concentration in raw water exceeds 10 ng/L, the Powdered Activated Carbon Feed System SHALL be capable of delivering PAC at doses between 5 and 50 mg/L within 30 minutes of operator initiation.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; chemical-dosing; pac; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-009" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-009">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Chemical Containment and Emergency Safety System SHALL provide secondary containment for all liquid chemical storage areas rated for 110% of the largest single tank volume, with chemically resistant liners and sump pumps interlocked to prevent discharge to stormwater.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; chemical-dosing; containment; safety; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-010" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-010">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Chemical Dosing Control System SHALL implement flow-proportional dosing for alum, chlorine, caustic soda, and fluoride, adjusting dose rate within 10 seconds of a plant flow change exceeding 5% of current flow.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; chemical-dosing; control; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-011" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-011">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When a duty metering pump fails or its discharge pressure drops below the minimum injection threshold, the Chemical Dosing Control System SHALL automatically switch to the standby pump within 30 seconds and annunciate the switchover to SCADA.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; chemical-dosing; control; redundancy; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-012" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-012">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Polymer Preparation and Feed System SHALL provide a minimum 45-minute polymer aging time through a three-stage tank system before the solution is available for dosing.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; chemical-dosing; polymer; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-013" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-013">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The UV Disinfection Reactor SHALL deliver a validated UV dose of not less than 40 mJ/cm2 at all flow rates up to 200 L/s per reactor, at UV transmittance as low as 85%, with dose validation per USEPA UV Disinfection Guidance Manual.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; disinfection; uv; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-014" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-014">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Chlorine Contact Tank SHALL achieve a T10/T ratio of not less than 0.65 as validated by tracer study, with two parallel tanks each providing 15-minute detention time at peak flow of 580 L/s.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; disinfection; contact-tank; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-015" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-015">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The CT Compliance Monitoring System SHALL calculate achieved CT at 15-minute intervals using outlet residual chlorine concentration and validated T10 time at current flow, and SHALL generate an alarm when achieved CT falls below 90% of required CT for the current water temperature and pH.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; disinfection; ct-compliance; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-016" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-016">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Disinfection Residual Analyser Network SHALL measure free chlorine residual with accuracy of ±0.02 mg/L at 1.0 mg/L across the range 0 to 5 mg/L, with automatic sample flow monitoring and alarm on loss of sample.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; disinfection; analyser; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-017" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-017">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When any single UV reactor is offline for maintenance or lamp failure, the remaining duty reactors SHALL maintain the validated 40 mJ/cm2 dose at flows up to 75% of peak plant capacity (435 L/s total).">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; disinfection; uv; redundancy; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-018" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-018">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The UV Disinfection Reactor SHALL continuously monitor UV intensity at 254 nm with calibrated reference sensors, and SHALL automatically increase lamp power or reduce flow when measured intensity drops below the minimum required for dose compliance at current UVT and flow rate.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; disinfection; uv; monitoring; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-019" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-019">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Dual-Media Gravity Filter Cell SHALL reduce settled water turbidity from a maximum of 2 NTU to not more than 0.1 NTU in the individual filter effluent at filtration rates up to 6 m/hr, with media comprising 600 mm anthracite (effective size 1.0 mm, UC 1.4) over 300 mm silica sand (effective size 0.5 mm, UC 1.3).">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; filtration; media; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-020" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-020">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Backwash Supply System SHALL deliver backwash water at a rising rate of 55 to 65 m/hr with flow regulation to within ±5% of setpoint, using duty/standby pumps each rated at 900 m3/hr at 15 m TDH, drawing from a dedicated 200 m3 backwash water storage tank.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; filtration; backwash; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-021" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-021">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Dual-Media Gravity Filter Cell SHALL reduce settled water turbidity from a maximum of 2 NTU to not more than 0.1 NTU in the individual filter effluent at filtration rates up to 6 m/hr, with media comprising 600 mm anthracite over 300 mm silica sand.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; filtration; media; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-022" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-022">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Air Scour Blower System SHALL deliver scour air at a superficial velocity of 45 to 55 m/hr uniformly across the filter floor area via the underdrain system, using duty/standby positive displacement blowers each rated at 1500 Nm3/hr at 0.5 bar gauge.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; filtration; air-scour; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-023" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-023">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When a filter cell returns to service after backwash, the Filter-to-Waste System SHALL divert filtered water to the backwash waste holding tank until individual filter effluent turbidity is continuously below 0.15 NTU for a minimum of 15 minutes.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; filtration; filter-to-waste; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-024" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-024">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Filter Control and Instrumentation Panel SHALL continuously monitor differential pressure across the filter media bed over the range 0 to 3 m with accuracy of plus or minus 0.05 m, and SHALL initiate automatic backwash when headloss exceeds 2.5 m or filter run time exceeds 72 hours, whichever occurs first.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; filtration; control; headloss; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-025" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-025">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Filter Control and Instrumentation Panel SHALL monitor individual filter effluent turbidity via online laser nephelometer over the range 0 to 10 NTU with resolution of 0.001 NTU, and SHALL alarm at 0.3 NTU and automatically take the filter offline at 1.0 NTU.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; filtration; control; turbidity; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-026" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-026">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Filter Control and Instrumentation Panel SHALL execute an automated backwash sequence comprising: drain-down to media surface, air scour at 50 m/hr for 3 minutes, combined air-water wash for 4 minutes, high-rate water-only rinse at 60 m/hr for 8 minutes, and slow rinse at 20 m/hr for 5 minutes, with total sequence duration not exceeding 25 minutes.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; filtration; control; backwash-sequence; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-027" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-027">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Filtration Subsystem SHALL comprise a minimum of 8 filter cells arranged in two parallel trains of 4, such that with any one cell offline for backwash or maintenance the remaining 7 cells SHALL maintain the full plant production capacity of 50 ML/d at individual filter rates not exceeding 7 m/hr.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; filtration; redundancy; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-028" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-028">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Filter Underdrain and Support Gravel System SHALL distribute backwash water and air uniformly such that the variation in flow velocity across the filter floor area does not exceed plus or minus 10% of the mean, preventing media migration, gravel disruption, or dead zones during the combined air-water backwash phase.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; filtration; underdrain; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-029" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-029">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Backwash Supply System SHALL limit total backwash water consumption to not more than 4% of daily plant production, with the backwash storage tank refilled from the clear well at a rate sufficient to support sequential backwash of two filter cells within a 2-hour period.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; filtration; backwash; efficiency; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-030" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-030">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="While water level in the filter cell is below the top of the media bed, the Air Scour Blower System SHALL be interlocked to prevent air delivery, avoiding media displacement and underdrain damage from unsupported air scour.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; filtration; air-scour; safety; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-031" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-031">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Inclined Plate Settler Module SHALL achieve settled water turbidity of not more than 2 NTU at surface overflow rates up to 10 m/hr when receiving flocculated water with turbidity up to 50 NTU, using 60-degree inclined plates at 50 mm spacing providing a minimum effective settling area of 2500 m2 per basin.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; sedimentation; settler; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-032" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-032">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Sludge Scraper and Hopper System SHALL remove settled sludge from the basin floor at a scraper speed of 0.3 m/min without disturbing the sludge blanket or resuspending settled particles, with automatic desludging triggered when ultrasonic sludge blanket depth exceeds 0.5 m above the basin floor.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; sedimentation; sludge-scraper; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-033" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-033">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Sedimentation Basin Inlet Distribution System SHALL distribute flocculated water across the full basin cross-section with velocity variation not exceeding 10% of the mean, reducing inlet velocity from 0.3 m/s to below 0.05 m/s through the energy dissipation zone to prevent floc breakup.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; sedimentation; inlet; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-034" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-034">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Sedimentation Effluent Launder and Weir System SHALL collect settled water at a maximum weir overflow rate of 10 m3/hr per metre of weir length with V-notch weir crests adjustable to within plus or minus 10 mm to ensure uniform flow collection across the basin outlet.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; sedimentation; weir; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-035" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-035">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Sedimentation Subsystem SHALL comprise a minimum of 3 parallel basins such that with any one basin offline for cleaning or maintenance, the remaining basins SHALL maintain a minimum treatment capacity of 35 ML/d at surface overflow rates not exceeding 12 m/hr.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; sedimentation; redundancy; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-036" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-036">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Rapid Mix Chamber SHALL achieve a velocity gradient (G value) of 600 to 1000 s⁻¹ with a hydraulic detention time of 15 to 30 seconds at flows from 50% to 110% of design capacity.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; coag-floc; rapid-mix; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-037" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-037">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Rapid Mix Chamber SHALL provide a minimum of two coagulant injection points positioned within the high-shear zone such that coagulant is dispersed to 95% homogeneity within 5 seconds of injection.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; coag-floc; rapid-mix; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-038" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-038">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Flocculation Basin Train SHALL provide three-stage tapered-energy mixing with velocity gradients of 60–80 s⁻¹ (Stage 1), 30–50 s⁻¹ (Stage 2), and 10–20 s⁻¹ (Stage 3) and a total hydraulic retention time of not less than 20 minutes at design flow.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; coag-floc; flocculation; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-039" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-039">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Coagulation and Flocculation Subsystem SHALL comprise a minimum of 3 parallel flocculation trains such that with any one train offline for maintenance, the remaining trains SHALL treat not less than 100% of average daily demand.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; coag-floc; redundancy; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-040" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-040">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Flocculator Drive and Gearbox Assembly SHALL provide continuously variable paddle tip speed from 0.15 to 0.9 m/s via variable frequency drives with speed stability of ±1% of setpoint under varying load conditions.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; coag-floc; flocculator-drive; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-041" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-041">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Streaming Current Detector SHALL continuously measure the streaming current index of coagulated water within 30 seconds of the coagulant injection point and transmit a 4–20 mA signal proportional to SCI to the SCADA system at not less than 1 Hz update rate.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; coag-floc; scd; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-042" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-042">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Coagulation pH Control System SHALL maintain coagulation pH within the range 6.2 to 7.0 with a control accuracy of ±0.1 pH units under steady-state conditions and ±0.3 pH units during raw water alkalinity transients exceeding 20 mg/L CaCO3 change per hour.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; coag-floc; ph-control; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-043" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-043">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When the streaming current index deviates beyond ±0.5 units from the operator-defined setpoint for more than 60 seconds, the Chemical Dosing Control System SHALL automatically adjust the coagulant dose rate by up to ±15% of the current dose within 30 seconds of the deviation being confirmed.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; coag-floc; dose-control; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-044" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-044">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Intake Screen and Trashrack Assembly SHALL provide coarse screening (75 mm bar spacing) followed by fine screening (6 mm aperture) and SHALL initiate automatic screen cleaning when differential head loss across the screen exceeds 150 mm.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; raw-water-intake; screen; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-045" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-045">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Raw Water Pumping Station SHALL deliver raw water at 580 to 870 L/s with 3 duty + 1 standby pumps, each VFD-controlled to modulate flow within ±5% of setpoint across the full operating range.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; raw-water-intake; pumping; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-046" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-046">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Flow Measurement and Control System SHALL measure raw water flow with accuracy of ±0.5% of reading using a full-bore electromagnetic flow meter and SHALL provide the master flow signal to SCADA for flow-proportional chemical dosing.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; raw-water-intake; flow; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-047" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-047">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Raw Water Quality Monitoring Station SHALL continuously measure turbidity, pH, temperature, conductivity, and dissolved oxygen with a sampling transport lag of not more than 60 seconds from the intake point.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; raw-water-intake; monitoring; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-048" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-048">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When all duty pumps in the Raw Water Pumping Station are unavailable, the standby pump SHALL start automatically within 30 seconds of the last duty pump trip and SHALL maintain a minimum flow of 290 L/s.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; raw-water-intake; redundancy; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-049" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-049">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Master SCADA Server and Historian SHALL operate as a redundant hot-standby pair with automatic failover completing within 5 seconds and zero data loss for process values sampled at 1-second intervals.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; scada-server; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-050" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-050">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Master SCADA Server and Historian SHALL store at least 12 months of online historical data at 1-second resolution for critical water quality parameters (turbidity, chlorine residual, pH, fluoride) and 10-second resolution for all other process variables.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; scada-server; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-051" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-051">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Distributed PLC Network SHALL execute safety interlock logic within a scan time of 100 ms or less, and process control loops within a scan time of 500 ms or less, for all connected I/O points.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; plc-network; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-052" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-052">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Distributed PLC Network SHALL maintain autonomous control of all assigned process areas when the SCADA server connection is lost, continuing the last valid control strategy for a minimum of 72 hours without operator intervention.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; plc-network; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-053" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-053">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Process Instrumentation Field Network SHALL support a minimum of 200 field instruments connected via 4-20 mA HART, Modbus RTU (RS-485), or Profibus PA, with each instrument polled at its required sample rate without exceeding 95% bus utilisation on any segment.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; field-instruments; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-054" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-054">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Industrial Network Infrastructure SHALL provide a redundant fibre-optic Ethernet backbone in ring topology with Rapid Spanning Tree or Media Redundancy Protocol failover completing within 50 ms.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; network; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-055" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-055">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Industrial Network Infrastructure SHALL enforce IEC 62443-compliant network segmentation with VLAN isolation per process area, a DMZ firewall between OT and IT networks, and port-level access control on all managed switches.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; network; cybersecurity; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-056" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-056">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Operator HMI Workstations SHALL provide role-based access control with at least three levels (operator, supervisor, engineer) and SHALL log all setpoint changes and manual overrides with timestamp, user identity, and previous value.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; hmi; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-057" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-057">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Operator HMI Workstations SHALL annunciate all priority-1 alarms within 2 seconds of the alarm condition being detected by the PLC, via on-screen pop-up, audible horn, and flashing beacon in the control room.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; hmi; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-058" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-058">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Remote Telemetry and Reporting Gateway SHALL transmit key compliance parameters (plant effluent turbidity, chlorine residual, pH, flow) to the state drinking water authority's compliance portal at intervals not exceeding 15 minutes.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; telemetry; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-059" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-059">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When the primary WAN link fails, the Remote Telemetry and Reporting Gateway SHALL activate the cellular backup link within 30 seconds and SHALL queue unsent data for up to 24 hours of link outage, transmitting the backlog upon link restoration.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; telemetry; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-060" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-060">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When utility power is lost, the Emergency Diesel Generator Set SHALL start and reach rated voltage and frequency within 10 seconds, and the automatic transfer switch SHALL transfer critical loads within 2 seconds of generator readiness.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; electrical-power; generator; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-061" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-061">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Emergency Diesel Generator Set SHALL provide a minimum of 72 hours of continuous operation at 75% rated load from on-site fuel storage, with the bulk fuel tank capacity of at least 10,000 litres and a day tank capacity of at least 500 litres with automatic refill.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; electrical-power; generator; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-062" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-062">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Main Utility Power Switchgear SHALL accept dual 11 kV utility feeds and provide automatic bus transfer between feeds within 100 ms upon detection of voltage sag below 90% or complete loss on the active feed.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; electrical-power; switchgear; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-063" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-063">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Uninterruptible Power Supply System SHALL provide 60 kVA of online double-conversion power to SCADA servers, PLC racks, and critical instrumentation with a minimum battery autonomy of 30 minutes at full rated load.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; electrical-power; ups; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-064" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-064">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Motor Control Centres SHALL provide variable frequency drives for all pump motors rated above 7.5 kW, with VFD efficiency not less than 97% at rated speed, and SHALL support Ethernet/IP communication for speed setpoint and status reporting to the local PLC.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; electrical-power; mcc; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-065" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-065">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Power Distribution and Protection Network SHALL maintain a site earthing grid resistance below 1 ohm and SHALL coordinate overcurrent protection devices to achieve fault discrimination such that only the device nearest the fault trips.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; electrical-power; protection; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-066" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-066">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="While operating on emergency diesel generation, the Electrical Power and Emergency Generation Subsystem SHALL maintain power to disinfection, SCADA, and treated water pumping subsystems at a minimum of 35 ML/d treatment capacity as required by SYS-REQS-005.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; electrical-power; degraded-mode; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-067" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-067">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Sludge Holding and Thickening Tank SHALL provide a combined storage volume of at least 400 m3, sufficient for 3 days of sludge production at peak plant throughput of 50 ML/d with raw water turbidity of 50 NTU and alum dose of 80 mg/L.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; sludge; holding-tank; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-068" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-068">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Mechanical Sludge Dewatering System SHALL dewater thickened alum sludge from 2-4% feed solids to a minimum cake solids content of 18% by weight, with polymer consumption not exceeding 5 kg of active polymer per dry tonne of sludge solids.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; sludge; dewatering; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-069" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-069">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Sludge Cake Storage and Disposal Hopper SHALL provide a minimum storage capacity of 60 m3, sufficient for 5 days of dewatered cake production, with a live-bottom discharge capable of loading a 10 m3 hook-lift bin within 15 minutes.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; sludge; cake-storage; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-070" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-070">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Supernatant and Filtrate Return System SHALL limit the total return flow to the plant headworks to no more than 10% of the concurrent raw water inflow, and SHALL equalise return flows in a 20 m3 sump with variable-speed pumps to prevent shock loading.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; sludge; return-system; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-071" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-071">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Mechanical Sludge Dewatering System SHALL be provided in a duty/standby configuration (two belt filter presses each rated at 25 m3/hr sludge feed) to ensure continuous dewatering capability during maintenance of one unit.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; sludge; dewatering; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-072" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-072">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Treated Water Clear Well SHALL provide a minimum combined effective storage volume of 10 ML across two cells, sufficient for 4.8 hours of peak demand at 50 ML/d plus a 1 ML fire reserve isolated by a weir at the cell outlet.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; treated-water; clear-well; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-073" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-073">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The High-Lift Distribution Pump Station SHALL maintain discharge pressure between 350 kPa and 700 kPa across the full demand range from 200 L/s minimum night flow to 600 L/s peak day demand, with pump efficiency not less than 80% at best efficiency point.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; treated-water; distribution-pumps; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-074" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-074">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The High-Lift Distribution Pump Station SHALL operate in a 3-duty 1-standby configuration with automatic lead-lag pump selection controlled by SCADA, and SHALL maintain the minimum discharge pressure of 350 kPa with any one pump out of service.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; treated-water; distribution-pumps; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-075" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-075">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Treated Water Quality Monitoring Station SHALL continuously measure treated water turbidity (range 0-1 NTU, resolution 0.001 NTU), free chlorine residual (range 0-5 mg/L, accuracy ±0.02 mg/L), pH (range 6-9), and fluoride (range 0-2 mg/L) with results available to SCADA within 60 seconds.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; treated-water; quality-monitoring; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-076" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-076">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Distribution Network Surge Protection System SHALL limit hydraulic transient pressures to no more than 150% of the maximum steady-state working pressure (700 kPa) during pump trip, rapid valve closure, or sudden demand change events.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; treated-water; surge-protection; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-077" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-077">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When the SCADA server or network backbone fails, the Distributed PLC Network SHALL maintain autonomous local control of all process areas with PLC scan cycle time not exceeding 100 ms, retaining the last valid setpoints and alarm thresholds for a minimum of 72 hours without operator intervention, and SHALL resume SCADA data synchronisation within 30 seconds of network restoration.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; degraded-mode; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-078" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-078">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When the SCADA server or network backbone fails, the Distributed PLC Network SHALL maintain autonomous local control of all process areas with PLC scan cycle time not exceeding 100 ms, retaining the last valid setpoints and alarm thresholds for a minimum of 72 hours without operator intervention, and SHALL resume SCADA data synchronisation within 30 seconds of network restoration.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; scada; degraded-mode; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-079" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-079">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-021 is a duplicate of SUB-REQS-019 (dual-media gravity filter cell turbidity performance). SUB-REQS-019 is the authoritative version as it includes full media specification.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="duplicate-of-SUB-REQS-019; session-213">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-080" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-080">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-077 and SUB-REQS-078 are textual duplicates of each other and functionally duplicate SUB-REQS-052 (Distributed PLC autonomous control). SUB-REQS-052 is the authoritative version for PLC scan time and autonomous operation requirements.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="duplicate-of-SUB-REQS-052; session-213">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SUB-REQS-081" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SUB-REQS-081">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When raw water turbidity exceeds 100 NTU as measured by the Raw Water Quality Monitoring Station, the Coagulation and Flocculation Subsystem SHALL increase coagulant dose to the pre-configured storm dose profile within 60 seconds of turbidity threshold exceedance, increase flocculator speed to the high-energy setpoints (Stage 1: 80 s-1, Stage 2: 50 s-1, Stage 3: 20 s-1), and the SCADA system SHALL alert operators to consider reducing plant throughput to maintain settled water turbidity below 5 NTU.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Storm events cause rapid raw water turbidity spikes that can overwhelm coagulation at normal doses, leading to settled water turbidity exceeding filter capacity and risking regulatory non-compliance. The 60-second response time ensures chemical dosing adjusts before high-turbidity slug passes through the rapid mix chamber. The staged G-value profile (80/50/20 s-1) follows standard tapered flocculation practice for high-turbidity conditions, promoting dense floc formation while preventing shear breakup. Alerting operators to reduce throughput is a defence-in-depth measure when turbidity approaches the design envelope limit.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-rationale</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Test">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-verification</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="subsystem; coagulation; storm-response; session-213">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-001" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-001">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL produce finished water with turbidity not exceeding 0.3 NTU in 95% of monthly measurements and never exceeding 1.0 NTU, measured continuously at the combined filter effluent.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; water-quality; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-002" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-002">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL treat a sustained flow of 50 ML/d through the complete treatment train at design water quality, and 75 ML/d for durations up to 8 hours with all treatment trains in service.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; capacity; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-003" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-003">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL provide a minimum UV dose of 40 mJ/cm2 for Cryptosporidium inactivation and maintain a chlorine CT value of at least 6 mg-min/L at the chlorine contact chamber outlet for 4-log virus inactivation at all operating flows.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; disinfection; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-004" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-004">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL continuously monitor turbidity at each individual filter effluent, combined filter effluent, and settled water; chlorine residual at pre- and post-disinfection points; and pH at coagulation, post-lime, and finished water points, with all measurements recorded at intervals not exceeding 1 minute.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; monitoring; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-005" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-005">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL maintain a minimum treatment capacity of 35 ML/d with any single sedimentation basin, filter, or disinfection unit out of service for maintenance.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; redundancy; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-006" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-006">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="When utility power is lost, the Water Treatment Plant SHALL transfer to emergency diesel generation within 10 seconds and sustain essential treatment and pumping loads for a minimum of 72 hours without fuel resupply.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; power; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-007" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-007">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL detect chlorine gas leaks at concentrations not exceeding 1 ppm and activate emergency ventilation and audible/visual alarms within 5 seconds of detection in all sodium hypochlorite storage and dosing areas.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; safety; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-008" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-008">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The SCADA system SHALL present all process variables, equipment status, and alarm conditions on operator workstations with a maximum data latency of 2 seconds from field instrument to screen display, and SHALL retain all process data for a minimum of 5 years.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; scada; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-009" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-009">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Sludge Handling Subsystem SHALL dewater alum sludge to a minimum of 18% solids content and return all supernatant and filtrate to the plant headworks with suspended solids concentration not exceeding 200 mg/L.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; sludge; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-010" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-010">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Water Treatment Plant SHALL consume no more than 0.4 kWh of electrical energy per cubic metre of treated water at average daily flow, including all treatment processes, pumping, and ancillary loads.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; energy; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-011" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-011">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Raw Water Intake Subsystem SHALL deliver raw water at a flow rate of 580 to 870 L/s to the treatment plant headworks while screening debris larger than 6mm and excluding fish, with intake structure designed for raw water turbidity events up to 200 NTU.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; intake; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-012" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-012">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Coagulation and Flocculation Subsystem SHALL reduce raw water turbidity by a minimum of 80% under normal conditions (raw turbidity 0.5-10 NTU) and produce settled water turbidity not exceeding 5 NTU during high-turbidity events (raw turbidity 50-200 NTU).">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; coagulation; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-013" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-013">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Filtration Subsystem SHALL produce individual filter effluent turbidity not exceeding 0.1 NTU during stable operation, with filter-to-waste capability to prevent breakthrough turbidity above 0.3 NTU from entering the clearwell during filter ripening.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; filtration; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-014" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-014">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The Treated Water Storage and Distribution Pumping Subsystem SHALL maintain discharge pressure between 350 kPa and 700 kPa across two pressure zones, with surge pressure not exceeding 110% of steady-state operating pressure during pump start/stop transients.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; distribution; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:SYS-REQS-015" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="SYS-REQS-015">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="The SCADA system SHALL implement ISA-18.2 compliant alarm management with a maximum sustained alarm rate not exceeding 6 alarms per operator per hour during normal operation, and SHALL provide distinct alarm priorities (critical, high, medium, low) with escalation procedures for unacknowledged critical alarms.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="system; scada; alarm; session-206">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-001" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-001">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-001: Test — inject water at maximum flow rate (50 ML/d) with alum feed at 120 L/hr. Confirm check valve holds 150% of line pressure without backflow. Verify anti-siphon air gap breaks vacuum when pump stops. Pass: zero backflow detected at alum storage; injection quill flow confirmed at ±5% of setpoint.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-dosing; alum; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-002" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-002">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-002: Test — inject polymer solution with tracer dye at flocculation stage inlet. Measure tracer distribution at 1, 3, and 5 seconds downstream. Pass: 90% tracer dispersion achieved within 5 seconds of injection as measured by fluorometer at three sampling points.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-dosing; polymer; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-003" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-003">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-003: Test — operate ejector with motive water at 400, 500, and 600 kPa. Measure chlorine solution concentration and flow at each pressure. Verify uniform distribution by sampling residual at 6 points across contact tank cross-section at 1m downstream. Pass: coefficient of variation of residual concentration &lt; 15% across sampling points.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-dosing; chlorine; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-004" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-004">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-004: Test — inject caustic soda at maximum dose rate with plant at design flow. Sample pH at 5 and 10 pipe diameters downstream of static mixer. Pass: pH variation between any two sample points &lt; 0.1 pH units at 10 diameters downstream.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-dosing; caustic; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-005" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-005">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-005: Test — simulate pump status changes, dose rate adjustments, tank level variations, and analyser alarms at the chemical dosing PLC. Confirm all signals appear on SCADA within 2 polling intervals (2 seconds). Pass: 100% of 50 test signals received correctly at SCADA with timestamp latency &lt; 2 seconds.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-dosing; scada; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-006" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-006">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-006: Test — inject calibration gas at 1.5 ppm to each of the 6 chlorine detection points sequentially. Measure time from detector alarm to SCADA annunciation via hardwired path. Repeat with Modbus link disconnected to confirm hardwired independence. Pass: all 6 detectors annunciate at SCADA within 500 ms; alarms function identically with Modbus disconnected.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-dosing; safety; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-007" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-007">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-007: Inspection and Test — inspect Hastelloy C-276 injection quill and PVDF tubing material certificates against specification. Verify 2-metre minimum separation from caustic injection point by measurement. Test with acidified water (pH 2.0) for 24 hours and inspect for corrosion or precipitation. Pass: material certs confirmed; separation ≥ 2m; no visible corrosion or precipitation after acid exposure test.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-dosing; fluoride; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-008" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-008">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-004: Test — inject calibration gas at 1.5 ppm concentration to each chlorine detector. Record timestamp of detection threshold crossing and timestamp of cylinder valve closure confirmation (limit switch). Pass: all cylinder valves confirmed closed and scrubber running within 5 seconds of first detector alarm at each test point.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-dosing; chlorine; safety; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-009" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-009">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-005: Test — measure exhaust airflow with calibrated anemometer at chlorine room exhaust duct. Calculate air changes per hour from measured flow rate and room volume. Verify negative pressure with differential pressure gauge at doorway. Pass: measured ACH ≥ 20; room pressure at least 25 Pa below adjacent corridor.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-dosing; ventilation; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-010" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-010">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-011: Test — with duty pump running at steady-state, simulate pump fault by tripping motor contactor. Measure time from fault to standby pump reaching commanded speed. Verify SCADA receives switchover alarm. Repeat for each chemical feed system. Pass: standby pump at speed within 30 seconds; SCADA alarm received for all test cases.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-dosing; redundancy; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-011" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-011">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-008: Test — measure flow at UV inlet header with portable ultrasonic flowmeter and compare with electromagnetic flowmeter reading at 25%, 50%, 75%, and 100% of design flow. Verify UVT spectrophotometer reading against laboratory UV-254 analysis of grab samples. Pass: flowmeter agreement within ±1%; UVT agreement within ±1% transmittance.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; disinfection; filtration; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-012" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-012">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-009: Test — with chlorine injection operating at design dose, sample chlorine residual at 6 points across the contact tank inlet cross-section at 1m inside the baffled zone. Pass: coefficient of variation of chlorine residual &lt; 20% across sampling points, confirming adequate pre-mixing.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; disinfection; contact-tank; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-013" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-013">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-010: Test — apply known chlorine standards (0.5, 1.0, 2.0, 4.0 mg/L) to each of the 5 analysers and verify SCADA displays updated value within 2 seconds. Simulate sample flow loss and confirm discrete alarm at SCADA. Pass: all 5 analysers read within ±0.05 mg/L of standard; all sample loss alarms received within 2 seconds.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; disinfection; scada; session-207">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-014" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-014">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-011: Test by operating the sedimentation and filtration subsystems at peak hydraulic loading. Measure flow distribution to each filter cell via individual effluent flowmeters. Pass criteria: total flow within 5% of 900 m3/hr, settled water turbidity below 2 NTU at all sampling points under normal conditions.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; filtration; sedimentation; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-015" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-015">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-012: Inspect motorised butterfly valve and electromagnetic flowmeter installation on each filter effluent pipe. Demonstrate valve operation and flowmeter calibration. Pass criteria: valve stroke time under 60 seconds, flowmeter accuracy within 1% of reading, combined header capacity confirmed at 900 m3/hr.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; filtration; treated-water; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-016" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-016">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-013: Conduct backwash flow test on each filter cell. Measure backwash flow rate via Venturi flowmeter at pump speeds from 50% to 100%. Pass criteria: flow rate 800 to 1000 m3/hr, supply pressure 12 to 18 m head, Venturi accuracy within 2% of volumetric reference measurement.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; filtration; backwash; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-017" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-017">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-014: Conduct air scour distribution test on a drained filter cell with media removed. Measure air flow at multiple underdrain orifice sample points. Pass criteria: air delivery 1400 to 1600 Nm3/hr, supply pressure 0.4 to 0.6 bar gauge, variation across floor area within 10% of mean velocity.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; filtration; air-scour; underdrain; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-018" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-018">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-015: Test Modbus TCP communication between each Filter Control Panel and the SCADA server. Confirm all register mappings for turbidity, headloss, flow, valve positions, and filter status. Pass criteria: all data points update within 1 second, command response time under 500 ms, no data loss over 24-hour continuous test.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; filtration; scada; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-019" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-019">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-016: Simulate signal loss on 4-20 mA speed demand to backwash pump. Confirm fail-safe behaviour. Test all discrete I/O signals for correct mapping. Pass criteria: pump stops within 2 seconds of signal loss, all discrete signals confirmed correct per I/O schedule, valve positions match commanded states.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; filtration; backwash; control; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-020" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-020">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-017: Test filter-to-waste flow path by operating filter-to-waste valve at full filter production rate. Confirm non-return valve closes against backflow. Pass criteria: gravity flow sustained at 150 m3/hr, non-return valve holds against 1 m static head from waste holding tank.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; filtration; filter-to-waste; sludge; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-021" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-021">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-018: Test air scour interlock by attempting blower start with filter water level below media surface setpoint. Confirm blower does not start. Raise water level above setpoint and confirm blower starts normally. Pass criteria: blower start inhibited 100% of low-level attempts, blower starts within 5 seconds of level permissive.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; filtration; air-scour; interlock; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-022" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-022">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-019: Conduct hydraulic commissioning test with flocculated water at peak flow. Measure velocity at 6 points across the distribution channel cross-section. Pass criteria: maximum channel velocity below 0.3 m/s, velocity variation within 10% of mean.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; sedimentation; inlet; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-023" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-023">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-020: Test settled water quality and flow distribution at peak plant capacity. Measure settled water turbidity at each basin outlet and flow to each filter cell via effluent flowmeters. Pass criteria: settled water turbidity below 2 NTU, flow variation between filter cells within 5% of mean.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; sedimentation; filtration; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-024" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-024">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-021: Test sludge withdrawal from each hopper during normal desludge cycle. Measure sludge solids concentration and flow rate. Pass criteria: sludge concentration 2 to 3 percent solids, withdrawal flow up to 50 m3/hr per hopper, mud valve opens and closes within 10 seconds of command.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; sedimentation; sludge; session-208">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-025" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-025">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-022: Test by commissioning flow measurement at Raw Water Intake–Rapid Mix interface across 50% to 110% design flow. Pass: inlet turbidity value appears on SCADA within 5 seconds of grab-sample comparison.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; coag-floc; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-026" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-026">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-023: Inspection of injection quill material certificate (Hastelloy C-276) and test of alum flow measurement accuracy at 25%, 50%, 75%, and 100% of maximum rate. Pass: measured flow within ±2% of commanded rate at all test points.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; coag-floc; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-027" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-027">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-024: Measure head loss across Rapid Mix–Flocculation transfer at design flow using differential pressure transducers. Pass: head loss does not exceed 50 mm at any flow up to 110% of design.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; coag-floc; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-028" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-028">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-025: Measure approach velocity at flocculation outlet to sedimentation inlet using tracer dye study at design flow. Pass: velocity does not exceed 0.3 m/s at any measurement point.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; coag-floc; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-029" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-029">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-026: Inject known SCI signal from calibration source and confirm SCADA data log records values at 1-second intervals with alarm triggering within 2 seconds of threshold exceedance. Pass: all logged values match calibration within ±0.05 SCI units.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; coag-floc; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-030" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-030">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-027: Simulate pH deviation and measure time from detection to caustic soda dose rate change initiation. Pass: response time does not exceed 10 seconds across 5 repeated trials.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; coag-floc; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-031" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-031">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-028: Visual inspection of gravity channel dimensions and velocity measurement using propeller flow meter at design flow. Pass: velocity does not exceed 0.6 m/s.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; raw-water-intake; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-032" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-032">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-029: Dimensional survey of flow meter installation confirming 5D straight run and meter calibration test at 25%, 50%, 75%, 100% of range. Pass: accuracy within ±0.5% of reading.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; raw-water-intake; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-033" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-033">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-030: Inject test signals on each raw water quality parameter and confirm SCADA receives and logs values within 5 seconds. Verify Modbus RTU polling at configured interval. Pass: all parameters visible on SCADA within specification.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; raw-water-intake; session-209">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-034" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-034">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-031: Test by connecting representative field instruments (turbidimeter, flow meter, pH analyser) to PLC I/O and confirming signal accuracy within 0.1% of calibrated range. Verify bus loading does not exceed 95% with all instruments online. Pass criteria: all instruments report within ±0.25% of reference standard and bus utilisation remains below 95%.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; scada; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-035" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-035">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-032: Test by disconnecting one fibre link on each PLC and confirming network failover completes within 50 ms with no loss of process data. Pass criteria: PLC maintains communication with SCADA server during single-link failure; no alarm generated for data loss.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; scada; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-036" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-036">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-033: Test by timestamping a PLC register change and measuring time to historian storage. Verify with 800+ configured tags polling at 1-second intervals. Pass criteria: end-to-end latency from PLC scan to historian write does not exceed 500 ms for 99% of samples over a 24-hour test period.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; scada; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-037" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-037">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-034: Test by injecting a simulated alarm condition at the PLC and measuring elapsed time to HMI alarm pop-up display. Pass criteria: alarm annunciation appears on all operator workstations within 2 seconds of PLC detection for 100% of injected alarms across 50 test cycles.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; scada; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-038" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-038">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-035: Test by confirming compliance data appears on the reporting gateway within 1 minute of SCADA server update. Verify DMZ firewall blocks all traffic except the read-only OPC-UA endpoint. Pass criteria: data latency under 60 seconds; penetration test confirms no inbound connections cross DMZ.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; scada; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-039" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-039">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-036: Inspect PLC I/O rack allocation against point schedule. Verify 20% spare capacity by counting used vs total I/O slots in each rack. Pass criteria: every process area PLC has at least 20% unused I/O capacity documented in the as-built point schedule.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; scada; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-040" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-040">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-037: Test by simulating utility failure and measuring transfer time from generator ready signal to load energisation. Verify mechanical interlock prevents simultaneous closure of utility and generator breakers. Pass criteria: transfer completes within 2 seconds; interlock test confirms lockout in 10 consecutive trials.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; electrical-power; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-041" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-041">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-038: Analyse protection coordination study confirming time-graded discrimination between MCC incomer and downstream starters. Inject simulated fault currents at MCC bus. Pass criteria: fault clearance at MCC incomer within 200 ms; downstream starter trips before incomer for faults beyond starter.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; electrical-power; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-042" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-042">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-039: Test by disconnecting UPS input and confirming uninterrupted power to critical loads. Verify static bypass transfers load within one half-cycle. Pass criteria: zero interruption to SCADA servers during input loss; bypass transfer time under 10 ms.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; electrical-power; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-043" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-043">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-040: Test by commanding motor start/stop from PLC and confirming status feedback within 500 ms. Verify VFD speed setpoint tracks PLC command within 2% across operating range. Pass criteria: I/O response within 500 ms; speed accuracy within 2% of setpoint at 25%, 50%, 75%, and 100% speed.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; electrical-power; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-044" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-044">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-041: Inspect gravity pipeline gradient and diameter. Test by measuring sludge flow rate during basin desludging. Pass criteria: achieves 50 m3/hr flow with no pipeline blockage over 30-day commissioning period; sludge solids at receiving tank confirmed at 2-3% by grab sample.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; sludge; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-045" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-045">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-042: Test by running a full filter backwash cycle and measuring flow volume and peak flow rate to sludge holding tank. Pass criteria: total volume per backwash event within 180-220 m3; flow meter readings agree with tank level change within 5%.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; sludge; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-046" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-046">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-043: Test by operating the progressing cavity pump across its speed range and confirming thickened sludge feed rate tracks setpoint within 10%. Verify inline density meter reads within 0.5% of laboratory analysis. Pass criteria: feed rate 10-25 m3/hr controllable; density measurement agrees with lab within 0.5% solids.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; sludge; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-047" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-047">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-044: Test by operating return pumps at maximum rate while monitoring headworks inflow. Simulate return turbidity exceeding 50 NTU and confirm automatic shutoff activates. Pass criteria: return flow does not exceed 10% of concurrent inflow; shutoff triggers within 30 seconds of turbidity exceedance.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; sludge; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-048" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-048">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-045: Inspect pipeline diameter and inlet distribution arrangement. Conduct tracer test (rhodamine or lithium chloride) through the clear well to confirm T10/T ratio exceeds 0.5 for CT compliance. Pass criteria: 900 mm pipeline installed; tracer test T10/T ratio &gt;= 0.5.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; treated-water; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-049" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-049">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-046: Test by isolating one clear well cell and confirming pumps draw from the remaining cell without cavitation or pressure drop below NPSH required. Pass criteria: all pumps operate at rated flow from single cell with NPSH margin &gt;= 2 m.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; treated-water; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-050" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-050">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-047: Calibrate Woltman flow meter against portable ultrasonic flow meter at 25%, 50%, 75%, and 100% of design flow. Test pressure sustaining valve setpoint. Pass criteria: flow meter accuracy within ±1% of reading; pressure sustaining valve maintains setpoint within ±10 kPa.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; treated-water; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-051" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-051">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-048: Test each analyser's 4-20 mA signal against PLC register by applying known calibration standards. Verify remote calibration initiation from SCADA HMI. Pass criteria: signal accuracy within ±0.5% of span; remote calibration completes successfully for all analysers.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; treated-water; session-210">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-052" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-052">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-003: Test — with chlorine system operating at maximum withdrawal rate, create a controlled downstream leak by loosening a union at the ejector. Confirm vacuum is maintained (no chlorine gas release) using portable chlorine detector at leak point. Measure vacuum at cylinder regulator outlet: pass criterion is sustained vacuum &gt;5 kPa below atmospheric at all points downstream of the regulator during simulated leak.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-dosing; safety; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-053" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-053">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-013: Test — conduct bioassay validation per USEPA UV Disinfection Guidance Manual using MS2 coliphage at flow rates of 100, 150, and 200 L/s per reactor and UVT values of 75%, 85%, and 95%. Measure delivered UV dose via biodosimetry. Pass criterion: validated reduction equivalent dose not less than 40 mJ/cm2 at each test condition with UV sensor readings correlated to biodosimetry within ±10%.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; disinfection; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-054" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-054">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-014: Test — conduct step-dose tracer study using lithium chloride or rhodamine WT at design flow in each chlorine contact tank. Measure tracer concentration at outlet at 30-second intervals. Calculate T10 (time for 10% of tracer to pass outlet). Pass criterion: T10/T ratio not less than 0.65 and theoretical HRT not less than 15 minutes per tank at design flow.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; disinfection; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-055" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-055">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-036: Test — measure power draw and water temperature at flows of 580, 725, and 870 L/s. Calculate velocity gradient G = sqrt(P/(mu*V)) where P is measured mixing power, mu is dynamic viscosity at measured temperature, and V is chamber volume. Pass criterion: G value between 600 and 1000 s-1 at each flow rate, with detention time between 15 and 30 seconds.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; coagulation; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-056" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-056">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-045: Test — operate each raw water pump individually at 50%, 75%, and 100% VFD speed. Measure flow via calibrated electromagnetic meter. Confirm 3-duty configuration delivers 580-870 L/s total. Verify standby pump auto-starts within 30 seconds of a simulated duty pump trip. Pass criterion: each pump delivers rated flow within ±5% at commanded speed; total station output spans required range.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; raw-water-intake; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-057" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-057">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-049: Test — with primary SCADA server operating under typical load (all PLCs polling, historian recording, 3 HMI sessions active), disconnect the primary server network interface. Measure failover time from primary disconnect to secondary assuming full data service. Pass criterion: failover completes within 5 seconds, zero data loss confirmed by comparing historian timestamps across the transition.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; scada; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-058" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-058">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-060: Test — simulate utility power loss by opening the main breaker. Measure time from loss of voltage to diesel generator reaching rated voltage (415 V ±5%) and frequency (50 Hz ±2.5%). Measure ATS transfer time from generator ready to load on. Pass criterion: generator ready within 10 seconds of power loss, ATS transfer within 3 seconds of generator ready.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; electrical; safety; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-059" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-059">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-066: Test — with plant running on emergency diesel generation, confirm disinfection (UV reactors and chlorine dosing), SCADA system, and raw water pumping remain energised and operational. Verify non-essential loads (administrative building HVAC, external lighting) are shed. Pass criterion: all priority loads operational within 15 seconds of diesel assuming load; shed loads confirmed de-energised.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; electrical; safety; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-060" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-060">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-068: Test — feed thickened alum sludge at 2%, 3%, and 4% solids to belt filter press at design throughput of 25 m3/hr. Sample dewatered cake at belt discharge and measure solids content by gravimetric method (APHA 2540G). Pass criterion: cake solids not less than 18% w/w at each feed concentration, polymer consumption not exceeding 5 kg/dry tonne.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; sludge-handling; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-061" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-061">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-076: Analysis — conduct hydraulic transient analysis using Method of Characteristics model of the distribution system including pump trip, valve closure, and demand variation scenarios. Pass criterion: maximum transient pressure at any point in the system does not exceed 150% of steady-state working pressure, and minimum transient pressure remains above -50 kPa (no column separation).">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; distribution; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-062" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-062">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-078: Test — with all PLCs in normal operation, disconnect the SCADA server and network backbone. Confirm each area PLC continues local control by verifying process variable trends remain within setpoint bands. Measure scan cycle time using PLC diagnostic registers: pass criterion not exceeding 100 ms. After 1 hour, restore network and confirm SCADA data synchronisation completes within 30 seconds with no data gaps in historian.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; scada; degraded-mode; session-211">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-063" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-063">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify IFC-DEFS-049: Test — inject tracer dye through PAC injection quill at maximum feed rate (50 mg/L at design flow). Measure tracer arrival time at the coagulant injection point to confirm minimum 2-second separation. Inspect injection quill position relative to alum injection quill. Pass criteria: tracer-measured contact time not less than 2 seconds at design flow; quill positioned upstream of alum injection as per P&amp;ID.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Test">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-verification</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-dosing; session-213">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-064" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-064">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-009: Inspection — measure secondary containment sump volume for each liquid chemical storage area against 110% of the largest single tank volume. Verify liner chemical resistance per manufacturer datasheet against stored chemical compatibility. Test sump pump interlock by raising sump level above alarm setpoint and confirming stormwater discharge valve closes. Pass criteria: sump volume confirmed at 110% of largest tank; liner rated for stored chemical; discharge valve closes within 5 seconds of high-level alarm.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Inspection">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-verification</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; chemical-safety; session-213">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-065" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-065">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-015: Test — inject known chlorine residual standards at the CT outlet sampling point while operating at design flow. Configure 90% CT alarm threshold. Verify CT calculation updates at 15-minute intervals using validated T10 and measured residual. Simulate low-residual condition and confirm alarm generation. Pass criteria: calculated CT agrees with manual calculation within 5%; alarm triggers within 60 seconds when achieved CT falls below 90% of required value.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Test">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-verification</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; disinfection; session-213">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-066" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-066">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-030: Test — drain filter cell to below media surface level. Attempt to start air scour blower from both local and SCADA. Confirm blower does not start. Refill cell above media surface and confirm blower starts normally. Repeat 5 times to confirm interlock reliability. Pass criteria: blower start inhibited in 100% of low-level attempts; blower starts within 5 seconds of level permissive confirmation.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Test">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-verification</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; filtration; session-213">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-067" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-067">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-023: Test — initiate backwash on a filter cell and allow return to service. Continuously monitor individual filter effluent turbidity during ripening. Confirm filter-to-waste valve remains open until turbidity is continuously below 0.15 NTU for 15 minutes. Verify diverted water reaches backwash waste holding tank. Pass criteria: no filtered water with turbidity above 0.15 NTU enters the clearwell during filter ripening; filter-to-waste valve holds open for full 15-minute qualification period.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Test">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-verification</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; filtration; session-213">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-068" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-068">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-055: Test — conduct network penetration test verifying VLAN isolation between process areas. Attempt cross-VLAN traffic and confirm it is blocked. Verify DMZ firewall rules between OT and IT networks by attempting connections from IT to OT zones. Inspect managed switch port-level access control configurations. Pass criteria: zero cross-VLAN traffic passes without explicit firewall rules; no inbound OT connections from IT network; all switch ports configured with 802.1X or MAC-based access control.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Test">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-verification</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; scada; cybersecurity; session-213">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      <SPEC-OBJECT IDENTIFIER="uht-bot:se-water-treatment-plant:VER-METHODS-069" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="VER-METHODS-069">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-ref</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Verify SUB-REQS-062: Test — with plant operating on primary 11 kV feed, simulate voltage sag to 85% on active feed. Measure time from voltage sag detection to bus transfer completion. Verify mechanical interlocking prevents simultaneous closure of both incomer breakers. Repeat test with complete loss of voltage. Pass criteria: bus transfer completes within 100 ms; mechanical interlock confirmed in 10 consecutive trials; no load interruption exceeding 100 ms during transfer.">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-text</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="Test">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-verification</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verification; electrical; session-213">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-tags</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-OBJECT-TYPE-REF>req-type</SPEC-OBJECT-TYPE-REF></TYPE>
      </SPEC-OBJECT>
      </SPEC-OBJECTS>
      <SPEC-RELATIONS>
      <SPEC-RELATION IDENTIFIER="rel-0" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SYS-REQS-008</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-052</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="derives">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-1" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-062</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-069</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-2" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-055</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-068</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-3" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-023</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-067</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-4" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-030</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-066</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-5" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-015</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-065</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-6" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-009</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-064</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-7" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:IFC-DEFS-049</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-063</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-8" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SYS-REQS-012</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-081</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="derives">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-9" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SYS-REQS-012</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:IFC-DEFS-049</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="derives">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-10" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SYS-REQS-013</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-019</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="derives">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-11" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SYS-REQS-008</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-052</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="derives">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-12" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-062</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-069</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-13" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-055</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-068</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-14" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-023</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-067</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-15" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SYS-REQS-012</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-081</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="derives">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-16" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-030</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-066</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-17" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-015</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-065</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-18" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-009</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-064</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-19" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:IFC-DEFS-049</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-063</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-20" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SYS-REQS-012</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:IFC-DEFS-049</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="derives">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-21" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-078</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-062</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-22" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-076</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-061</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
      <SPEC-RELATION IDENTIFIER="rel-23" LAST-CHANGE="2026-04-24T20:24:29.901Z">
        <SOURCE><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:SUB-REQS-068</SPEC-OBJECT-REF></SOURCE>
        <TARGET><SPEC-OBJECT-REF>uht-bot:se-water-treatment-plant:VER-METHODS-060</SPEC-OBJECT-REF></TARGET>
        <VALUES>
          <ATTRIBUTE-VALUE-STRING THE-VALUE="verifies">
            <DEFINITION><ATTRIBUTE-DEFINITION-STRING-REF>attr-linkType</ATTRIBUTE-DEFINITION-STRING-REF></DEFINITION>
          </ATTRIBUTE-VALUE-STRING>
        </VALUES>
        <TYPE><SPEC-RELATION-TYPE-REF>trace-link-type</SPEC-RELATION-TYPE-REF></TYPE>
      </SPEC-RELATION>
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