FloSafe – Drinking Water System Protection & Cross‑Connection Control Consulting

Specialized consulting for AI Data Centers, Municipal Water Systems, NTNC Public Water Systems, Hospitals, and Complex Facilities

Cross‑Connection Control • Design Review • Regulatory Compliance • Risk Assessment

916‑798‑2810

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Prepared for Engineers, Architects, Data Center Developers, and Water System Operators

AI DATA CENTER - POTABLE WATER SYSTEM FLOOR PLAN

20 MW Hyperscale Facility - 100,000 sq ft White Space

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EQUIPMENT INFO

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• CCC requirements
• Backflow prevention
• Regulatory compliance
• Hazard classifications
AI DATA CENTER FACILITY - FLOOR PLAN VIEW WATER SERVICE ENTRY Water Meter RPZ Assembly MAIN MECHANICAL ROOM Chilled Water Plant (Makeup Water) Domestic Hot Water HVAC Humidification Water Treatment Chemical Feed Systems (Corrosion/Scale Control) OUTDOOR COOLING TOWER YARD Cooling Tower 1 Air Gap Required Legionella Control Cooling Tower 2 Air Gap Required Chemical Treatment WHITE SPACE - DATA HALLS (100,000 sq ft) AI/HPC Server Racks - No Direct Water Connections CRAC Bank A CRAC Bank B CRAH Bank C CRAH Bank D In-Row Cooling AI/GPU Server Racks (2000+ racks @ 15-50 kW each) No direct water connections to IT equipment Liquid cooling via chilled water to CRAH units only Air-cooled containment with precision HVAC Power: 20 MW | Cooling Load: 18-19 MW heat rejection Liquid Cooling Distribution (Future/Optional - Non-Potable) Separate from domestic water Fire Suppression System Pre-Action Sprinkler (Dry Pipe) DC Backflow Preventer Required Underfloor Leak Detection System (No water connection - monitoring only) ELECTRICAL / UPS ROOM UPS Battery Systems EW Fire Suppression OFFICE & SUPPORT AREAS Break Room Kitchen Restrooms NOC Offices Janitor Closets Security Office GENERATOR YARD / EMERGENCY POWER Generator 1 (2.5 MW) Generator 2 (2.5 MW) Fuel Day Tanks Fire Suppression LOADING DOCK / SERVICE AREA Loading Dock HB Parts/ Workshop EXTERIOR LANDSCAPE Landscape Irrigation PVB/AVB Backflow Preventer Required Fertilizer/Pesticide Potential MAIN CT MU COOLING EW OFFICE DHW GENERATOR MU FIRE IRRIGATION LEGEND Potable Water Flow Standard Equipment HIGH HAZARD - Critical CCC Room/Area White Space (Data Halls) ABBREVIATIONS RPZ = Reduced Pressure Zone Assembly DC = Double Check Valve Assembly DCVA = Double Check Valve Assembly PVB = Pressure Vacuum Breaker AVB = Atmospheric Vacuum Breaker MU = Make-up Water CT = Cooling Tower EW = Eyewash CRAC = Computer Room A/C CRAH = Computer Room Air Handler AI DATA CENTER CRITICAL CCC REQUIREMENTS COOLING TOWER MANDATE: Air gap MANDATORY on all cooling tower makeup water - NO EXCEPTIONS per Title 22 Section 64672(j) CONDENSATE DRAINS: All CRAC/CRAH condensate drains require air gap to drainage system - prevents backflow to cooling equipment CCC SPECIALIST REQUIRED: For facilities on PWS OR municipally-supplied systems CHEMICAL TREATMENT: All closed-loop systems with chemical additives = HIGH HAZARD