Data center water · Nationwide

Data center water management,
handled end to end

Water system implementation, permitting, maintenance, operations, compliance and community outreach for data center campuses across the United States, from one certified team.

  • Certified CCC Specialists
  • SAM UEI YSEPR7ZKJLJ7
  • CAGE 21HX0
Illustration of a data center campus with water treatment tanks, a storage tank, pumps and cooling equipment connected by piping
Service areas, one team
6
Specialized services
31
Public agency projects on record
10
States served
50

Data center water compliance

Data center cooling water connects your campus to the public water system

Wells, makeup lines, chiller fills and construction sites all carry federal, state and local obligations. We find the gaps before your water supplier or a regulator does.

Data center building beside a water storage tank and blue process piping on concrete pads
0140 CFR 141.2

A campus well can make you a water system

A system that serves water for drinking to 25 or more people for at least 60 days a year is a public water system under federal rules. Serve the same 25 people for more than six months and it is a nontransient noncommunity system, with a permit, monitoring and reporting.

02State and local programs

Cooling and process lines need backflow protection

Water suppliers enforce cross-connection rules set by each state. California, for example, lists premises with more than one service connection, a well or recycled water as high hazard, and requires annual assembly tests with repairs within 30 days.

0340 CFR 122.26(b)(15)

Construction triggers stormwater permits

Clearing, grading or excavating one acre or more needs Clean Water Act permit coverage, issued by EPA or your state, with a stormwater pollution prevention plan in place before ground is broken.

What we handle, under one team

Data center water services for the entire system

Talk to an Expert

Water system implementation

Planning, building out and commissioning the water systems a campus runs on.

  • Treatment systems
  • Storage and distribution
  • Cooling water supply
  • Recycled water connections
  • Backflow protection installs
  • Startup and commissioning

Permitting

Permits and paperwork with the State, your water supplier and local agencies.

  • Water system permits
  • Recycled water use site approvals
  • Construction stormwater (SWPPP)
  • Backflow and cross-connection paperwork
  • Agency submittals and correspondence

Maintenance

Scheduled upkeep that keeps assemblies, pumps and treatment equipment in service.

  • Backflow testing and repair
  • Pump and equipment upkeep
  • Valve exercising
  • Storage tank inspections
  • Treatment equipment service

Operations

Certified operators running your campus water system day to day.

  • Certified operator of record
  • Daily rounds and logs
  • Sampling and monitoring
  • Treatment operation
  • Emergency response

Compliance

Every requirement tracked, met and documented in one record.

  • Cross-connection control program
  • Hazard assessments
  • Health inspections and sanitary surveys
  • Recycled water inspections
  • Consumer Confidence Reports
  • Records in Exodus Water Compliance

Community outreach

Clear communication with neighbors, officials and the public about your campus water.

  • Community engagement plans
  • Public meetings and presentations
  • Notices and public communications
  • Agency and stakeholder liaison

Uptime depends on cooling.
Cooling depends on water.
We keep the water side running.

Cooling water pump room with two blue pumps on concrete pads, insulated piping and pressure gauges

Proven work

Experience you can check

Completed programs for public agencies, the same regulators and water suppliers your campus answers to.

All case studies

Cross-Connection Control Plan

California Institution for Women

A 120-acre California Department of Corrections and Rehabilitation campus in Chino

Exodus developed the Cross-Connection Control Plan for the California Institution for Women, a CDCR facility.

Why it matters for a campusA 120 acre secured state campus: the same kind of site wide planning a data center campus needs.

Cross-Connection Control Plans, Countywide

San Bernardino County

A county program spanning 13 water systems across San Bernardino County

Exodus prepared Cross-Connection Control Plans for the 13 county systems in San Bernardino County’s program.

Why it matters for a campusThirteen systems planned and submitted as one program: how we run multi campus portfolios.

Hazard Assessments, Cross-Connection Control Program

City of Norwalk

One of the larger city water systems in Los Angeles County

Exodus runs Norwalk’s cross-connection control program: hazard assessments, testing coordination, and program administration.

Why it matters for a campusHazard assessments, testing coordination and program administration, run year after year.

CCC Plan Revision and Water Loss Audit Validation

City of Eureka

City water system serving more than 27,000 people on Humboldt Bay

Exodus revised Eureka’s Cross-Connection Control Plan through final submittal and validated its water loss audit.

Why it matters for a campusA plan revised through final submittal, plus a validated water loss audit.

Public agencies on our project record

  • City of Norwalk
  • San Bernardino County
  • City of Fillmore
  • City of El Segundo
  • City of Eureka
  • Donner Summit Public Utility District
  • California Institution for Women
  • City of Port Hueneme
  • City of Sebastopol
  • City of Gridley

Credentials

Certified people on every job

Water supplier inspectors and regulators look for certifications first. Ours are on file and current.

  • Cross-Connection Control SpecialistsCertified staff lead every hazard assessment
  • Backflow assembly testersCertified testers in the field
  • AWWA water audit validatorsCertified water loss audit validation
  • Stormwater staffCertified for SWPPP work and inspections
  • Federal registrationSAM UEI YSEPR7ZKJLJ7 · CAGE 21HX0
  • Public works contractorDIR #2000018305 · SB-Micro #2045201

How it works

How data center water management works with us

  1. 01

    Site walk and records review

    We trace domestic, cooling makeup, chiller fill, fire and recycled water connections and review the test records you already have.

  2. 02

    Written findings and scope

    You get a written list of hazards, the protection each needs, the deadlines that apply and a fixed scope to close the gaps.

  3. 03

    Testing and records on schedule

    Annual tests, repairs, reports to your water supplier and recycled water inspections, tracked in one record you can open any time.

Technician in blue gloves collecting a water sample from a tap on a stainless steel pipe beside a pressure gauge

Talk to an expert

Talk to a data center water expert

Tell us about your campus, its state and its water supply. A specialist replies with next steps and a clear, proposal based scope of work.

  • No obligation. You get a written scope before any work starts.
  • Operating campuses and projects in construction.
  • Campuses anywhere in the United States.

A specialist replies with next steps. No obligation.

See our Privacy Policy for how we handle your information.

FAQ

Data center water management FAQ

What is data center water management?

Data center water management is the planning, permitting, operation and compliance of every water system a campus depends on: drinking water supply, cooling and process water, recycled water, fire service and stormwater. Exodus handles all of it for data center campuses nationwide, from implementation through day to day operations.

Do data centers need water permits?

Usually several, depending on the state and the site. A campus that supplies drinking water from its own well can need a public water system permit, recycled water use needs state approval where it is allowed, construction that disturbs one acre or more needs Clean Water Act stormwater coverage, and the water supplier must accept your backflow protection. We map the permits your site needs and prepare the submittals.

How should a data center engage the community about water use?

Early and in both directions: public meetings before permits are filed, clear information about water sources and use, and one point of contact for neighbors, officials and the local water utility. We plan and run that outreach alongside the technical work, so the community hears the same facts the regulators see.

Do you work outside California?

Yes. We support data center campuses across the United States. Water system permits, cross-connection rules and operator certifications are set state by state, so every engagement starts by mapping the requirements of your state and your water supplier.

Do data centers need backflow protection?

In most cases, yes. Water suppliers protect the public system through state and local cross-connection programs, and campuses with several service connections, wells, recycled water or treated process water usually need a reduced pressure assembly or an air gap. California, for example, lists premises with more than one service connection, an auxiliary supply or recycled water as high hazard.

How often do backflow assemblies need testing?

Most states and water suppliers require a test at least once a year and after any repair, by a certified tester. In California an assembly that fails must be repaired or replaced within 30 days.

Our campus has its own well. Are we a public water system?

Possibly. Under federal rules (40 CFR 141.2), a system that serves water for human consumption to an average of 25 people a day for at least 60 days a year, or has 15 or more service connections, is a public water system. If it serves the same 25 or more people for more than six months a year, it is a nontransient noncommunity system with permit, monitoring and reporting duties.

Can we use recycled water for cooling?

Where your state allows it, often yes. In California, Title 22 Section 60306 allows cooling towers on disinfected tertiary recycled water, with a drift eliminator and a biocide to control Legionella where mist can reach people. Every state sets its own conditions, and we work through them with you and your supplier.

Does a data center need stormwater permits?

During construction, almost always: disturbing one acre or more needs Clean Water Act permit coverage and a stormwater pollution prevention plan. Industrial stormwater permits are tied to listed industry categories, and data centers are generally not one of them, although a state can require coverage case by case.

Are data center water rules changing?

Yes, in several states. In September 2026 California signed a package of data center bills, including AB 2469 and AB 1577, which add water use disclosure and reporting requirements. Clean records of where your water comes from and how it is protected make new reporting easier.

What credentials does your team hold?

Our team includes certified Cross-Connection Control Specialists, certified backflow prevention assembly testers, AWWA certified water audit validators and certified stormwater staff. Exodus is registered for federal work (SAM UEI YSEPR7ZKJLJ7, CAGE 21HX0).

Keep water off your
risk register

One conversation with our experts shows where your campus stands and what it takes to close the gaps.

Free tool

January 1 is closer than it looks

Validated water loss audits and annual water use reports are due January 1. The free deadline checker shows yours on screen.