# National Primary Drinking Water Regulations: Long Term 1Enhanced Surface Water Treatment and Filter Backwash Rule

> **EPA** · Rulemaking · Modified 2026-03-23T15:32:19Z

## Docket
- **Docket ID:** EPA-HQ-OW-2002-0008
- **Agency:** EPA
- **Type:** Rulemaking
- **Last modified:** 2026-03-23T15:32:19Z

## Source
- [regulations.gov docket](https://www.regulations.gov/docket/EPA-HQ-OW-2002-0008)
- [Public comments](https://www.regulations.gov/docket/EPA-HQ-OW-2002-0008/comments)

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