# Regulations.gov document: Drinking Water; National Primary Drinking Water Regulations - Sulfate; National Primary Drinking Water Regulation Implementation [PHASE-V-IV-A1-1] — retained record

> Retained regulations record from regulations-gov.

Canonical: https://highsignal.app/data/records/ca158ed373d6a692

[← sources](https://highsignal.app/data)


source: [regulations](https://highsignal.app/data/regulations) (regulations-gov)  published 2026-09-11 04:00 ingested 2026-09-12 02:44

[original source ↗](https://www.regulations.gov/document/EPA-HQ-OW-1990-8153-0004)

## retained text



```
Query: data center
Agency: EPA
Type: Proposed Rule
Docket: EPA-HQ-OW-1990-8153
```



document fetched 2026-09-14 02:39 · canonical https://regulations.gov/document/EPA-HQ-OW-1990-8153-0004