South Delaware Company Regional Water Authority

ZipCheckup's reading of EPA records for South Delaware Company Regional Water Authority (OK1221645): 3 health-based violations recorded since 2021. 12 violations on file at South Delaware Company Regional Water Authority, none open; 1,500 people served.

Data: EPA SDWIS

System Overview

South Delaware Company Regional Water Authority (EPA ID: OK1221645) is a community water system in Oklahoma that serves approximately 1,500 people from surface water sources.

This system provides water to 4 ZIP codes across 4 communities.

Violation History

Status breakdown for accepted records with record years 2021-2026: 12 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

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

4 of 4 ZIP records with known zones are in EPA Radon Zone 2.

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.

• 74338 - Colcord
• 74346 - Jay
• 74347 - Kansas
• 74964 - Watts

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for South Delaware Company Regional Water Authority (OK1221645) on EPA.gov.

Frequently Asked Questions

Is South Delaware Company Regional Water Authority water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for South Delaware Company Regional Water Authority; its 12 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does South Delaware Company Regional Water Authority serve?

South Delaware Company Regional Water Authority serves approximately 1,500 people across 4 ZIP codes in Oklahoma.

Where does South Delaware Company Regional Water Authority get its water?

The primary water source is surface water.

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  author = {{ZipCheckup}},
  title  = {{South Delaware Company Regional Water Authority, OK}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ok1221645/}
}