Public water system · TX2290002
ActiveChester WSC
At a glance
Chester WSC (PWSID TX2290002) is an active community water system in Tyler County, Texas. It reports serving 1,237 people through 472 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in May 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,237
Service connections
472
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Chester WSC compare with other water systems in Tyler County?
By EPA's size categories, Chester WSC is a small system (501 to 3,300 people). Tyler County has 19 active public water systems, and Chester WSC is the 6th-largest of them by population served. Its population served is roughly in line with the county average of 1,139 people per system, and accounts for 5.7% of the 21,642 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 Chester 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 Chester WSC?
EPA lists Chester 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. 7 of the 19 active systems in Tyler County (37%) are also owned by a local government.
Does Chester WSC have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in May 2026. The violations listed here began between April 2025 and May 2026. By type: 6 public notice, recordkeeping or other, 3 monitoring and reporting and 3 contaminant level above the legal limit. The contaminant or rule involved most often is Public Notice (5 of them). EPA lists 8 as unaddressed and 4 as archived. 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 |
|---|---|---|---|---|
| 2026-05-03 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2026-04-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2026-03-30 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2026-03-30 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2026-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2025-09-29 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2025-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Archived |
| 2025-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Archived |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2025-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | Archived |
| 2025-05-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Archived |
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.
Chester WSC: frequently asked questions
Who runs Chester WSC?
Chester WSC (PWSID TX2290002) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Chester WSC serve?
Chester WSC reports serving 1,237 people through 472 service connections in Tyler County, Texas.
Where does Chester 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 Chester WSC have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in May 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 Chester 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, 3 are health-based, and the most recent began in May 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 Chester WSC's water quality report?
As a community water system, Chester 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 Tyler County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Woodville | Tyler | 6,069 | Community | Groundwater |
| Tyler County Sud | Tyler | 5,872 | Community | Groundwater |
| Ivanhoe Land of Lakes | Tyler | 1,968 | Community | Groundwater |
| Warren WSC | Tyler | 1,834 | Community | Groundwater |
| City of Colmesneil | Tyler | 1,404 | Community | Groundwater |
| Seneca WSC | Tyler | 917 | 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, “Chester WSC, PWSID TX2290002, Texas”, https://aquacensus.com/water-systems/texas/chester-wsc-tx2290002 (data as of October 1, 2026).