Osu Water Plant

ZipCheckup's reading of EPA records for Osu Water Plant (OK1020910): 3 health-based violations recorded since 2021. Osu Water Plant has 4 EPA violations on record, all marked resolved in the federal data; the utility serves 13,000 residents.

Data: EPA SDWIS

System Overview

Osu Water Plant (EPA ID: OK1020910) is a community water system in Oklahoma that serves approximately 13,000 people from surface water sources.

This system provides water to 4 ZIP codes across 1 community.

Violation History

Status breakdown for accepted records with record years 2021-2026: 4 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Health Risk Details

Haloacetic Acids (HAA5) (EPA limit: 0.06 mg/L)

Increased risk of cancer

Treatment options (verify a product is certified to reduce this contaminant): granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter →

E. coli (EPA limit: MCLG of zero; positive samples require repeat testing under the Revised Total Coliform Rule)

Some E. coli strains can cause severe GI illness and kidney failure, especially in children At-risk groups: children under 5, elderly, immunocompromised individuals, pregnant women.

Treatment options (verify a product is certified to reduce this contaminant): UV disinfection, chlorination, reverse osmosis. Find the right filter →

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by OK or modeled from parcel and building-footprint data.

• 74074 - Stillwater
• 74075 - Stillwater
• 74077 - Stillwater
• 74078 - Stillwater

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Osu Water Plant (OK1020910) on EPA.gov.

Frequently Asked Questions

Is Osu Water Plant water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Osu Water Plant; its 4 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does Osu Water Plant serve?

Osu Water Plant serves approximately 13,000 people across 4 ZIP codes in Oklahoma.

Where does Osu Water Plant get its water?

The primary water source is surface water.

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  author = {{ZipCheckup}},
  title  = {{Osu Water Plant (OK): 3 Health Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ok1020910/}
}