Public water system · TX1740010

Active

D & M WSC

At a glance

D & M WSC (PWSID TX1740010) is an active community water system in Nacogdoches County, Texas. It reports serving 7,280 people through 2,304 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2025.

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

Population served

7,280

Service connections

2,304

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDTX1740010

System typeCommunity water system

Activity statusActive

Population served7,280

Service connections2,304

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyTX state drinking water program

City served—

StateTexas

ZIP—

CountyNacogdoches County

How does D & M WSC compare with other water systems in Nacogdoches County?

By EPA's size categories, D & M WSC is a medium system (3,301 to 10,000 people). Nacogdoches County has 16 active public water systems, and D & M WSC is the 2nd-largest of them by population served. Its population served is about 40% above the county average of 5,205 people per system, and accounts for 8.7% of the 83,282 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 D & M WSC is roughly in line with 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 1,192 Texas systems (17%) list purchased surface water as their primary source.

Who owns and regulates D & M WSC?

EPA lists D & M 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. 16 of the 16 active systems in Nacogdoches County (100%) are also owned by a local government.

Does D & M WSC have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2025. The violations listed here began between December 2019 and July 2025. By type: 4 monitoring, 3 public notice, recordkeeping or other, 3 monitoring and reporting, 1 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Revised Total Coliform Rule (4 of them). EPA lists 11 as resolved and 1 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. 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
2025-07-02	ReportingNotification, Known or Potential LSL · code 4H	Lead and Copper Rule Revisionscode 5200	No	Unaddressed
2025-04-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2024-07-02	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	Consumer Confidence Rulecode 7000	No	Resolved
2024-07-01	Monitoring and reportingWater Quality Parameter M/R · code 53	Lead and Copper Rulecode 5000	No	Resolved
2024-04-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2024-01-01	Monitoring and reportingWater Quality Parameter M/R · code 53	Lead and Copper Rulecode 5000	No	Resolved
2023-09-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-03-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2020-06-04	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2020-01-03	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2020-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2019-12-30	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	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.

D & M WSC: frequently asked questions

Who runs D & M WSC?

D & M WSC (PWSID TX1740010) is a community water system owned by a local government. It is regulated by the TX state drinking water program.

How many people does D & M WSC serve?

D & M WSC reports serving 7,280 people through 2,304 service connections in Nacogdoches County, Texas.

Where does D & M WSC get its water?

EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.

Does D & M WSC have any drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 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 D & M 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, one is health-based, and the most recent began in July 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 D & M WSC's water quality report?

As a community water system, D & M 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 Nacogdoches County

Water system	County	Population served	Type	Source
City of Nacogdoches	Nacogdoches	50,226	Community	Surface water
Appleby WSC	Nacogdoches	5,745	Community	Groundwater
Melrose WSC	Nacogdoches	3,143	Community	Groundwater
Swift WSC	Nacogdoches	2,547	Community	Groundwater
Lilly Grove Sud	Nacogdoches	2,435	Community	Groundwater
Caro WSC	Nacogdoches	2,412	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, “D & M WSC, PWSID TX1740010, Texas”, https://aquacensus.com/water-systems/texas/d-m-wsc-tx1740010 (data as of October 1, 2026).