State legislatures, not Washington, are writing the data center water rules
A MultiState survey published 3 March 2026 lists state bills that would put data center water use on the record: monthly energy and water reports in California, quarterly water reports in Iowa, annual commission reports in Michigan, closed loop cooling mandates in South Carolina and Kansas, reclaimed water conditions in Virginia and a ban on secrecy agreements in Georgia.
The verdict
Reported, primary not reached
A reliable secondary source carries it, and the primary document could not be reached. Printed with this label, never as verified.
Key facts
What the sources say
- Record ID
- AIA-2026-0010
- Kind
- Water rules
- Jurisdiction
- United States
- Last verified
- Added
- California AB 1577 would require monthly reports to the State Energy Commission on energy and water consumption.
- Iowa HF 2447 would require quarterly water usage reports to the Iowa Department of Natural Resources.
- Michigan SB 762 would place annual reporting of each data center's total water use on the Public Service Commission.
- South Carolina HB 4583 and Kansas SB 400 would require closed loop cooling with zero net water withdrawal and net zero wastewater discharge.
- Virginia SB 417 would condition grant funding eligibility on using treated wastewater in cooling systems.
- This record is reported: the individual bill texts were not fetched at their legislatures for this build.
- The energy side of state action is tracked separately in the site's own US AI Energy Policy Tracker.
What it changes
For an operator, a utility or a community
An operator with a multi state pipeline should treat cooling design as a legal question, because two of these bills would make closed loop cooling the only lawful design. A utility should expect to be named as the reporter in some states and not in others. A community should check which of these instruments its own legislature has in front of it, and read the state energy record at /tools/us-ai-energy-policy alongside it.
Sources
What this record was verified against
- MultiState, State Data Center Water Usage Legislation Gains MomentumSecondary · 3 March 2026
Related
Records that sit beside this one
No federal rule requires a United States data center to disclose its water use
United States · verified 15 September 2026
The only federal instruments found are bills: S. 4213 introduced 25 March 2026 and H.R. 9825 introduced 22 July 2026.
Georgia SB 421 would stop local governments hiding data center water and power figures
United States · verified 15 September 2026
The bill targets the agreement, not the facility: it would prohibit local governments from signing away the public's access to usage figures.
Open question: should a data center's water use be public, site by site
United States · verified 15 September 2026
The EU scheme collects water usage as a key performance indicator and publishes only aggregated figures at Member State and Union level.
Open question: does behind the meter generation escape interconnection rules
United States · verified 15 September 2026
The DOE proposal to FERC reaches loads that share a point of interconnection with new or existing generation, which is the colocation case.
The EPA says it will not set nationwide environmental requirements for data centers
United States · verified 15 September 2026
The reported position leaves water use, cooling system design and air quality decisions to individual states and communities.
A House bill would force disclosure before an AI data center site is fixed
United States · verified 15 September 2026
Disclosure would be due not later than 180 days before the developer takes a definitive step to establish the data center.
Cite this record
Free to reuse under CC BY 4.0, with attribution. The record ID AIA-2026-0010 is permanent and is never reused.
- In a sentence
- According to the GAGE AI Infrastructure Atlas (as of 15 September 2026), state legislatures, not washington, are writing the data center water rules.
- APA
- GAGE (Global Academy of Generative-AI Education). (2026). State legislatures, not Washington, are writing the data center water rules. AI Infrastructure Atlas. Retrieved 15 September 2026, from https://www.gage.academy/tools/ai-infrastructure-atlas/records/AIA-2026-0010-state-data-center-water-legislation-2026
- MLA
- "State legislatures, not Washington, are writing the data center water rules." AI Infrastructure Atlas, GAGE (Global Academy of Generative-AI Education), 15 September 2026, https://www.gage.academy/tools/ai-infrastructure-atlas/records/AIA-2026-0010-state-data-center-water-legislation-2026.
- Chicago
- GAGE (Global Academy of Generative-AI Education). "State legislatures, not Washington, are writing the data center water rules." AI Infrastructure Atlas. Last modified 15 September 2026. https://www.gage.academy/tools/ai-infrastructure-atlas/records/AIA-2026-0010-state-data-center-water-legislation-2026.
- Permalink
- https://www.gage.academy/tools/ai-infrastructure-atlas/records/AIA-2026-0010-state-data-center-water-legislation-2026
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