Public water system · TX1550020

Active

Chalk Bluff WSC

At a glance

Chalk Bluff WSC (PWSID TX1550020) is an active community water system in McLennan County, Texas. It reports serving 3,852 people through 1,284 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in July 2025.

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

Population served

3,852

Service connections

1,284

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDTX1550020

System typeCommunity water system

Activity statusActive

Population served3,852

Service connections1,284

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyTX state drinking water program

City served—

StateTexas

ZIP—

CountyMcLennan County

How does Chalk Bluff WSC compare with other water systems in McLennan County?

By EPA's size categories, Chalk Bluff WSC is a medium system (3,301 to 10,000 people). McLennan County has 57 active public water systems. Its population served is about 23% below the county average of 5,025 people per system, and accounts for 1.3% of the 286,438 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 Chalk Bluff WSC is about 43% 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 Chalk Bluff WSC?

EPA lists Chalk Bluff 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. 41 of the 57 active systems in McLennan County (72%) are also owned by a local government.

Does Chalk Bluff WSC have drinking water violations?

EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in July 2025. The violations listed here began between June 1991 and July 2025. By type: 7 monitoring and reporting, 1 reporting, 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (4 of them). EPA lists 7 as resolved, 2 as unaddressed and 1 as archived. 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. 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.

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
2019-02-25	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Unaddressed
2018-12-30	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2018-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2017-06-22	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2014-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2013-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2013-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2008-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
1991-06-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived

All 10 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.

Chalk Bluff WSC: frequently asked questions

Who runs Chalk Bluff WSC?

Chalk Bluff WSC (PWSID TX1550020) is a community water system owned by a local government. It is regulated by the TX state drinking water program.

How many people does Chalk Bluff WSC serve?

Chalk Bluff WSC reports serving 3,852 people through 1,284 service connections in McLennan County, Texas.

Where does Chalk Bluff 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 Chalk Bluff WSC have any drinking water violations?

EPA's records list 10 violations for this system; 1 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 Chalk Bluff 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 10 violations for this system; 1 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 Chalk Bluff WSC's water quality report?

As a community water system, Chalk Bluff 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 McLennan County

Water system	County	Population served	Type	Source
City of Waco	McLennan	146,241	Community	Surface water
City of Hewitt	McLennan	16,978	Community	Purchased surface water
City of Robinson	McLennan	11,900	Community	Surface water
City of Bellmead	McLennan	10,664	Community	Groundwater
City of Bruceville Eddy	McLennan	10,570	Community	Purchased surface water
City of Woodway	McLennan	9,383	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, “Chalk Bluff WSC, PWSID TX1550020, Texas”, https://aquacensus.com/water-systems/texas/chalk-bluff-wsc-tx1550020 (data as of October 1, 2026).