Public water system · TX1750023

Active

Winkler WSC

At a glance

Winkler WSC (PWSID TX1750023) is an active community water system in Navarro County, Texas. It reports serving 1,344 people through 448 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in April 2026.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

1,344

Service connections

448

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDTX1750023

System typeCommunity water system

Activity statusActive

Population served1,344

Service connections448

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyTX state drinking water program

City served—

StateTexas

ZIP—

CountyNavarro County

How does Winkler WSC compare with other water systems in Navarro County?

By EPA's size categories, Winkler WSC is a small system (501 to 3,300 people). Navarro County has 22 active public water systems. Its population served is about 57% below the county average of 3,101 people per system, and accounts for 2% of the 68,219 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active community water system reports serving 6,703 people, so Winkler WSC is well below that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Texas has 4,594 active community water systems, 65% of the state's 7,078 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 328 Texas systems (4.6%) list surface water as their primary source.

Who owns and regulates Winkler WSC?

EPA lists Winkler WSC as owned by a local government. The TX state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 17 of the 22 active systems in Navarro County (77%) are also owned by a local government.

Does Winkler WSC have drinking water violations?

Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in April 2026. The violations listed here began between October 2025 and April 2026. By type: 8 monitoring and reporting and 4 contaminant level above the legal limit. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (4 of them). EPA lists 5 as resolved, 4 as archived and 3 as unaddressed. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.

Began	Violation	Contaminant or rule	Health-based	Status
2026-04-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Unaddressed
2026-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Unaddressed
2026-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Unaddressed
2026-02-28	Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35	Total trihalomethanes (TTHM)code 2950	No	Resolved
2026-02-28	Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35	Haloacetic acids (HAA5)code 2456	No	Resolved
2026-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Archived
2026-01-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Archived
2026-01-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Archived
2026-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Archived
2025-11-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2025-10-28	Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35	Haloacetic acids (HAA5)code 2456	No	Resolved
2025-10-28	Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35	Total trihalomethanes (TTHM)code 2950	No	Resolved

The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Winkler WSC: frequently asked questions

Who runs Winkler WSC?

Winkler WSC (PWSID TX1750023) is a community water system owned by a local government. It is regulated by the TX state drinking water program.

How many people does Winkler WSC serve?

Winkler WSC reports serving 1,344 people through 448 service connections in Navarro County, Texas.

Where does Winkler WSC get its water?

EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.

Does Winkler WSC have any drinking water violations?

Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in April 2026. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Winkler WSC's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in April 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.

Where can I find Winkler WSC's water quality report?

As a community water system, Winkler WSC must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in Navarro County

Water system	County	Population served	Type	Source
City of Corsicana Pws	Navarro	25,885	Community	Surface water
Rice WSC	Navarro	10,167	Community	Purchased surface water
Chatfield WSC	Navarro	6,546	Community	Purchased surface water
M E N WSC	Navarro	4,040	Community	Purchased surface water
Navarro Mills WSC	Navarro	3,852	Community	Purchased surface water
Corbet WSC	Navarro	3,234	Community	Purchased surface water

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Winkler WSC, PWSID TX1750023, Texas”, https://aquacensus.com/water-systems/texas/winkler-wsc-tx1750023 (data as of October 1, 2026).