Duncan Public Utilities Authority

EPA’s September 2026 export lists Duncan Public Utilities Authority (PWSID OK1010809) as No current violation flagged, serving a reported 23,000 people from a surface water source, with 0 rules in current violation.

Source: EPA SDWIS system-search export · Snapshot 13 Sep 2026 · Federal compliance fields

CURRENT EXPORTNo current violation flaggedNo current violation is flagged in this EPA export. This is not a household water test.

Open EPA Detailed Facility Report ↗

01 / CURRENT FLAGS

EPA compliance flags for Duncan Public Utilities Authority

Duncan Public Utilities Authority is listed as no current violation flagged in the current export; the five federal flag categories remain separate below.

NOT FLAGGED
Health-based violationCurrent HEALTH_FLAG in the EPA export.
NOT FLAGGED
Monitoring and reportingCurrent MR_FLAG in the EPA export.
NOT FLAGGED
Public notificationCurrent PN_FLAG in the EPA export.
NOT FLAGGED
Other violationCurrent OTHER_FLAG in the EPA export.
NOT FLAGGED
Serious violatorCurrent serious-violator status in the EPA export.

Important limit

This page is not a household water test. A clear federal flag does not prove every home has safe water, and a flag is not a measurement at your faucet. Plumbing, service lines, local sampling, private wells, and newer events may not be reflected here.

02 / VIOLATION RECORD

Quarters with violations5rolling history field

Quarters with SNC0significant noncompliance

Rules in current violation0EPA export count

Rules in 3-year window2EPA export count

Current rule entries for Duncan Public Utilities Authority

EPA supplied 3 current contaminant, rule, or violation-category entries for Duncan Public Utilities Authority in the exported fields used here.

Monitoring Violation
Monitoring and Reporting
Treatment Technique Violation

Three-year entries for Duncan Public Utilities Authority

EPA supplied 3 contaminant or rule entries for Duncan Public Utilities Authority in the three-year history field.

1006=Chloramine
2920=CARBON, TOTAL
8000=Revised Total Coliform Rule

03 / OVERSIGHT & COVERAGE

Visits and sanitary surveys for Duncan Public Utilities Authority

The export lists 10 site visits in five years and 1 significant deficiencies for Duncan Public Utilities Authority.

Site visits, past 5 years: 10
Inspection visits: 0
Other visits: 10
Last sanitary survey: 09/04/2024
Last recorded visit: 07/29/2025
Significant deficiencies: 1

Places served by Duncan Public Utilities Authority

EPA associates Duncan Public Utilities Authority with the listed cities, counties, ZIP codes, and Oklahoma service area identifiers.

State / territory: Oklahoma
Cities: Not supplied
Counties: Stephens
ZIP codes: Not supplied
Federal PWSID: OK1010809
Registry ID: 110012874693

04 / HOW TO USE THIS RECORD

Current public records for Duncan Public Utilities Authority

EPA’s facility report, the Oklahoma drinking-water program, and Duncan Public Utilities Authority’s Consumer Confidence Report are the current public records beyond this September 2026 snapshot.

Confirm current conditions with the utility's latest Consumer Confidence Report, your state drinking-water program, and the EPA facility report. For household concerns, ask a qualified local laboratory about tap testing.

How the ledger is built →