Public water system · TX2030004

Active

Denning WSC

At a glance

Denning WSC (PWSID TX2030004) is an active community water system in San Augustine County, Texas. It reports serving 648 people through 255 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in May 2025.

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

Population served

648

Service connections

255

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDTX2030004

System typeCommunity water system

Activity statusActive

Population served648

Service connections255

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyTX state drinking water program

City served—

StateTexas

ZIP—

CountySan Augustine County

How does Denning WSC compare with other water systems in San Augustine County?

By EPA's size categories, Denning WSC is a small system (501 to 3,300 people). San Augustine County has 14 active public water systems, and Denning WSC is the 4th-largest of them by population served. Its population served is about 33% above the county average of 486 people per system, and accounts for 9.5% of the 6,809 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 Denning 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 5,215 Texas systems (74%) list groundwater as their primary source.

Who owns and regulates Denning WSC?

EPA lists Denning 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. 5 of the 14 active systems in San Augustine County (36%) are also owned by a local government.

Does Denning WSC have drinking water violations?

EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in May 2025. The violations listed here began between July 2001 and May 2025. By type: 4 monitoring and reporting, 3 public notice, recordkeeping or other, 1 reporting and 1 required treatment not met. The contaminant or rule involved most often is Public Notice (2 of them). EPA lists 9 as resolved. 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.

Began	Violation	Contaminant or rule	Health-based	Status
2025-05-15	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2024-10-17	ReportingLSL Reporting · code 4G	Lead and Copper Rule Revisionscode 5200	No	Resolved
2024-10-17	Required treatment not metLSL Inventory · code 2E	Lead and Copper Rule Revisionscode 5200	Yes	Resolved
2014-12-30	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2014-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2012-12-11	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2012-08-23	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2008-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2001-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved

All 9 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.

Denning WSC: frequently asked questions

Who runs Denning WSC?

Denning WSC (PWSID TX2030004) is a community water system owned by a local government. It is regulated by the TX state drinking water program.

How many people does Denning WSC serve?

Denning WSC reports serving 648 people through 255 service connections in San Augustine County, Texas.

Where does Denning WSC get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Denning WSC have any drinking water violations?

EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in May 2025. 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 Denning 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. EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in May 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.

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

As a community water system, Denning 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 San Augustine County

Water system	County	Population served	Type	Source
City of San Augustine	San Augustine	1,971	Community	Surface water
San Augustine Rural WSC	San Augustine	1,450	Community	Purchased surface water
New WSC	San Augustine	1,128	Community	Groundwater
City of Broaddus	San Augustine	406	Community	Groundwater
Parkway Water System	San Augustine	322	Community	Groundwater
Powell Point Water System	San Augustine	307	Community	Groundwater

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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, “Denning WSC, PWSID TX2030004, Texas”, https://aquacensus.com/water-systems/texas/denning-wsc-tx2030004 (data as of October 1, 2026).