Is STERLING PWA required to publish a Consumer Confidence Report?

Yes. STERLING PWA is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is STERLING PWA’s next Consumer Confidence Report due?

STERLING PWA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

STERLING, OK · Comanche County

STERLING PWA Water System

Consumer Confidence Report status

STERLING PWA must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for STERLING PWA.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Oklahoma’s official records. Always confirm current status with Oklahoma before making decisions based on this information.

System facts

System ID (PWSID): OK2001601
System type: Community Water System
Population served: 762
Service connections: 305
Ownership: local government
Water source: groundwater (wells)

STERLING PWA is one of 511 community water systems in Oklahoma in the 501 to 3,300 people size category, serving 762 people from groundwater.

As of August 1, 2026, its federal record holds 16 entries between 2005 and 2024, all of which EPA lists as closed.

All 16 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves inorganic chemicals, the Radionuclides and Revised Rad Rule, and the Total Coliform Rules.

Violation history

LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – July 15, 2025
Resolved
Monitoring, Regular
—
Gross Beta Particle Activity
January 1, 2020 – December 31, 2025
Archived
Monitoring, Regular
—
Barium
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Mercury
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Nickel
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2020 – December 31, 2025
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2020 – December 31, 2025
Archived
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2016 – December 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2014 – August 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2014 – August 31, 2014
Resolved
Monitoring, Regular
—
Picloram
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2007 – January 31, 2007
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2006 – January 31, 2006
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 2005 – December 31, 2005
Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
October 17, 2024 – July 15, 2025	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Resolved
January 1, 2020 – December 31, 2025	Monitoring, Regular	Gross Beta Particle Activity	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Barium	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Mercury	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Nickel	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2020 – December 31, 2025	Monitoring, Regular	Combined Uranium	—	Archived
January 1, 2020 – December 31, 2025	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
January 1, 2016 – December 31, 2016	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
January 1, 2014 – August 31, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2014 – August 31, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Picloram	—	Resolved
January 1, 2007 – January 31, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2006 – January 31, 2006	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
December 1, 2005 – December 31, 2005	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

February 19, 2026State Public Notification requested7 linked violations
July 10, 2023State Public Notification received12 linked violations
June 7, 2023State Compliance achieved12 linked violations
June 7, 2023State Compliance achieved2 linked violations
June 30, 2017State Public Notification received3 linked violations
April 20, 2017State Public Notification requested12 linked violations
August 4, 2016State Compliance achieved11 linked violations
August 4, 2016State Compliance achieved4 linked violations
August 4, 2016State Compliance achieved12 linked violations
August 4, 2016State Compliance achieved3 linked violations
November 5, 2014State Compliance achieved9 linked violations
February 21, 2007State Public Notification requested10 linked violations

Common questions

Is STERLING PWA required to publish a Consumer Confidence Report?: Yes. STERLING PWA is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is STERLING PWA’s next Consumer Confidence Report due?: STERLING PWA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does STERLING PWA have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for STERLING PWA.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

STERLING PWA

580-365-4445

STERLING, OK 73567