Pawnee

ZipCheckup's reading of EPA records for Pawnee (OK1021209): 1 violation recorded with unresolved status in the SDWIS data used. Pawnee | open status in EPA data: 1 violation | people served: about 2,230.

Data: EPA SDWIS

System Overview

Pawnee (EPA ID: OK1021209) is a community water system in Oklahoma that serves approximately 2,230 people from surface water sources.

This system serves ZIP code 74058 in Pawnee.

Violation History

Status breakdown for accepted records with record years 2021-2026: 54 resolved, 21 archived, 0 addressed, and 1 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.

Radon Risk in Service Area

1 of 1 ZIP records with known zones is in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

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.

• 74058 - Pawnee

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Pawnee (OK1021209) on EPA.gov.

Frequently Asked Questions

Is Pawnee water safe to drink?

The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.

How many people does Pawnee serve?

Pawnee serves approximately 2,230 people across 1 ZIP code in Oklahoma.

Where does Pawnee get its water?

The primary water source is surface water.

@misc{zipcheckup-water-system-ok1021209,
  author = {{ZipCheckup}},
  title  = {{Pawnee (OK): 22 Health Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ok1021209/}
}