Public water system · TX0940003
ActiveCity of Schertz
At a glance
City of Schertz (PWSID TX0940003) is an active community water system in Guadalupe County, Texas. It reports serving 41,948 people through 16,265 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
41,948
Service connections
16,265
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Schertz compare with other water systems in Guadalupe County?
By EPA's size categories, City of Schertz is a large system (10,001 to 100,000 people). Guadalupe County has 15 active public water systems, and City of Schertz is the 2nd-largest of them by population served. Its population served is about 3.1 times the county average of 13,752 people per system, and accounts for 20% of the 206,286 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 Schertz is about 6.3 times 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 City of Schertz?
EPA lists City of Schertz 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. 10 of the 15 active systems in Guadalupe County (67%) are also owned by a local government.
Does City of Schertz have drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between July 2010 and July 2025. By type: 6 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Lead and Copper Rule (4 of them). EPA lists 7 as resolved 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. 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 |
|---|---|---|---|---|
| 2025-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2025-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Archived |
| 2025-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2022-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-01-16 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2013-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
All 8 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 Schertz: frequently asked questions
Who runs City of Schertz?
City of Schertz (PWSID TX0940003) 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 Schertz serve?
City of Schertz reports serving 41,948 people through 16,265 service connections in Guadalupe County, Texas.
Where does City of Schertz 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 City of Schertz have any drinking water violations?
EPA's records list 8 violations for this system; none 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 City of Schertz'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 8 violations for this system; none 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 City of Schertz's water quality report?
As a community water system, City of Schertz 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 Guadalupe County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Green Valley Sud | Guadalupe | 52,497 | Community | Purchased surface water |
| Springs Hill Sud | Guadalupe | 35,541 | Community | Surface water |
| City of Seguin | Guadalupe | 32,736 | Community | Surface water |
| Crystal Clear Sud | Guadalupe | 20,766 | Community | Purchased surface water |
| City of Cibolo | Guadalupe | 20,331 | Community | Purchased surface water |
| City of Marion | Guadalupe | 1,971 | 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 Schertz, PWSID TX0940003, Texas”, https://aquacensus.com/water-systems/texas/city-of-schertz-tx0940003 (data as of October 1, 2026).