# 2025-09277: EPA Approves Hawaii's Updated Rules for Protecting Drinking Water

2025-09277, Revision of Approved State Primacy Program for the State of Hawaii, is a Federal Register notice from Environmental Protection Agency published 2025-05-23, effective 2025-06-23; PRIA reads it as touching household money (as of 2026-10-22).

- Canonical: https://policyrisk.com/federal-register/2025-09277
- As of: 2026-10-22
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2025-09277
- Title: Revision of Approved State Primacy Program for the State of Hawaii
- Type: Notice
- Agencies: Environmental Protection Agency
- Citation: 90 FR 22090
- Published: 2025-05-23
- Effective: 2025-06-23
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-10-22

## In one line

EPA Approves Hawaii's Updated Rules for Protecting Drinking Water

## Summary

Hawaii updated its drinking water rules to better protect groundwater from germs, matching tough federal standards. The EPA reviewed and approved these changes, so Hawaii will keep running its own safe water program. If anyone wants a public hearing, they must ask by June 23, 2025, but no extra costs or delays are expected.

## Abstract

Notice is hereby given that the State of Hawaii revised its approved State primacy program under the Federal Safe Drinking Water Act (SDWA) by adopting regulations that effectuate the Federal Ground Water Rule (GWR). The Environmental Protection Agency (EPA) has determined that Hawaii's revision request meets the applicable SDWA program revision requirements and the regulations adopted by Hawaii are no less stringent than the corresponding Federal regulations. Therefore, EPA approves this revision to Hawaii's approved State primacy program. However, this determination on Hawaii's request for approval of a program revision shall take effect in accordance with the procedures described below in the SUPPLEMENTARY INFORMATION section of this document after the opportunity to request a public hearing.

## Effects PRIA read

- Hawaii Keeps Local Drinking Water Control: benefit, medium. Hawaii adopted the Federal Ground Water Rule into state law to protect public groundwater from microbial pathogens, and EPA has approved that revision. EPA determined Hawaii's rules are no less stringent than the Federal rule and the approval becomes final and effective on June 23, 2025 if no timel…

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## Sources
- [2025-09277 on federalregister.gov](https://www.federalregister.gov/documents/2025/05/23/2025-09277/revision-of-approved-state-primacy-program-for-the-state-of-hawaii)
- [2025-09277 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2025-05-23/pdf/2025-09277.pdf)

## Related
- [Previous: 2025-09276, Proposed Information Collection Request; Contractor Conflicts of Interest (Rene…](https://policyrisk.com/federal-register/2025-09276)
- [Next: 2025-09280, Federal Advisory Committee Act; Communications Security, Reliability, and Inter…](https://policyrisk.com/federal-register/2025-09280)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2025-09277 (as of 2026-10-22).