Pawnee

ZipCheckup's reading of EPA SDWIS for Pawnee (OK1021209): 1 unresolved EPA violation on record. While corrective steps may be in progress, Pawnee currently shows 1 EPA violation unresolved - serving a population of approximately 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)

Cancer risk; reproductive & developmental effects At-risk groups: pregnant women, infants, long-term consumers of chlorinated municipal water.

Removal methods: granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter →

E. coli (EPA limit: Zero tolerance (any positive sample triggers immediate action))

Severe GI illness; potentially fatal kidney failure in children At-risk groups: children under 5, elderly, immunocompromised individuals, pregnant women.

Removal methods: UV disinfection (99.99%), 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

Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)

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 the full compliance record 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/}
}