Public water system · TX1750004

Active

City of Frost

At a glance

City of Frost (PWSID TX1750004) is an active community water system in Navarro County, Texas. It reports serving 759 people through 253 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, 4 are health-based, and the most recent began in April 2026.

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

Population served

759

Service connections

253

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDTX1750004

System typeCommunity water system

Activity statusActive

Population served759

Service connections253

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyTX state drinking water program

City served—

StateTexas

ZIP—

CountyNavarro County

How does City of Frost compare with other water systems in Navarro County?

By EPA's size categories, City of Frost is a small system (501 to 3,300 people). Navarro County has 22 active public water systems. Its population served is well below the county average of 3,101 people per system, and accounts for 1.1% 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 City of Frost 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. 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 City of Frost?

EPA lists City of Frost 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 City of Frost 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 2020 and April 2026. By type: 4 public notice, recordkeeping or other, 3 contaminant level above the legal limit, 3 monitoring and reporting, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Public Notice (4 of them). EPA lists 8 as resolved and 4 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
2026-04-02	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Unaddressed
2025-05-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Unaddressed
2024-10-17	Required treatment not metLSL Inventory · code 2E	Lead and Copper Rule Revisionscode 5200	Yes	Unaddressed
2024-10-17	ReportingLSL Reporting · code 4G	Lead and Copper Rule Revisionscode 5200	No	Unaddressed
2021-09-09	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2021-06-03	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2021-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2021-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2021-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2020-10-30	Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35	Total trihalomethanes (TTHM)code 2950	No	Resolved
2020-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2020-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	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.

City of Frost: frequently asked questions

Who runs City of Frost?

City of Frost (PWSID TX1750004) is a community water system owned by a local government. It is regulated by the TX state drinking water program.

How many people does City of Frost serve?

City of Frost reports serving 759 people through 253 service connections in Navarro County, Texas.

Where does City of Frost 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 City of Frost 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 City of Frost'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 City of Frost's water quality report?

As a community water system, City of Frost 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, “City of Frost, PWSID TX1750004, Texas”, https://aquacensus.com/water-systems/texas/city-of-frost-tx1750004 (data as of October 1, 2026).