Public water system · TX0930054

Active

Mill Creek Estates

At a glance

Mill Creek Estates (PWSID TX0930054) is an active community water system in Grimes County, Texas. It reports serving 608 people through 203 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 August 2019.

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

Population served

608

Service connections

203

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDTX0930054

System typeCommunity water system

Activity statusActive

Population served608

Service connections203

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyTX state drinking water program

City served—

StateTexas

ZIP—

CountyGrimes County

How does Mill Creek Estates compare with other water systems in Grimes County?

By EPA's size categories, Mill Creek Estates is a small system (501 to 3,300 people). Grimes County has 28 active public water systems. Its population served is about 35% below the county average of 941 people per system, and accounts for 2.3% of the 26,336 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 Mill Creek Estates 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 Mill Creek Estates?

EPA lists Mill Creek Estates 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. 6 of the 28 active systems in Grimes County (21%) are also owned by a local government.

Does Mill Creek Estates have drinking water violations?

EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in August 2019. The violations listed here began between January 2004 and August 2019. By type: 4 public notice, recordkeeping or other, 3 monitoring and reporting, 1 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Consumer Confidence Rule (3 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
2019-08-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2015-05-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2015-03-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2013-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2011-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2008-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2005-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2004-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2004-01-01	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	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.

Mill Creek Estates: frequently asked questions

Who runs Mill Creek Estates?

Mill Creek Estates (PWSID TX0930054) is a community water system owned by a local government. It is regulated by the TX state drinking water program.

How many people does Mill Creek Estates serve?

Mill Creek Estates reports serving 608 people through 203 service connections in Grimes County, Texas.

Where does Mill Creek Estates 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 Mill Creek Estates have any drinking water violations?

EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in August 2019. 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 Mill Creek Estates' 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 August 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.

Where can I find Mill Creek Estates' water quality report?

As a community water system, Mill Creek Estates 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 Grimes County

Water system	County	Population served	Type	Source
City of Navasota	Grimes	8,068	Community	Groundwater
Wickson Creek Sud Grimes County	Grimes	4,843	Community	Groundwater
Dobbin Plantersville WSC 2	Grimes	2,766	Community	Groundwater
G & W WSC	Grimes	1,650	Community	Groundwater
Tdcj Pack Unit	Grimes	1,597	Community	Groundwater
Tdcj Luther Units	Grimes	1,431	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, “Mill Creek Estates, PWSID TX0930054, Texas”, https://aquacensus.com/water-systems/texas/mill-creek-estates-tx0930054 (data as of October 1, 2026).