County · Texas
Atascosa County, Texas: drinking water records
This overview covers 10 ZIP codes and 9 community water systems in Atascosa County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| City of Jourdanton TX0070002 | 5,721 | 180 | 0 | 2 | 1 ppb |
| City of Lytle TX0070004 | 4,860 | 60 | 0 | 2 | 1 ppb |
| City of Poteet TX0070005 | 3,396 | 180 | 0 | 1 | 0.8 ppb |
| City of Pleasanton TX0070003 | 17,985 | 360 | 0 | 0 | 1.3 ppb |
| Mccoy WSC TX0070023 | 9,621 | 240 | 1 | 0 | 0 ppb |
| City of Charlotte TX0070016 | 2,247 | 120 | 0 | 0 | 2 ppb |
| City of Christine TX0070017 | 696 | 0 | 0 | 0 | 1.8 ppb |
| Fashing Peggy Water System TX0070018 | 474 | 0 | 0 | 0 | 0 ppb |
| Sontera Acres Mobile Manor NM3540407 | 156 | 0 | 0 | 0 | 1 ppb |
ZIP reports in Atascosa County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.