County · Texas
Gillespie County, Texas: drinking water records
This overview covers 4 ZIP codes and 15 community water systems in Gillespie County. It also stands in for 2 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 Fredericksburg TX0860001 | 11,257 | 120 | 0 | 0 | 0.5 ppb |
| Stonewall WCID TX0860104 | 726 | 0 | 0 | 1 | 1.6 ppb |
| Liveoaks Mobile Home Park TX0860090 | 357 | 0 | 0 | 3 | 1.2 ppb |
| Whispering Oaks Water Works TX0860006 | 189 | 0 | 0 | 1 | 1.4 ppb |
| Bernhard Trailer Park TX0860136 | 60 | 0 | 0 | 30 | 1.2 ppb |
| Royal Oaks Apartments TX0860080 | 57 | 0 | 0 | 9 | 0 ppb |
| Silver Wings Fly in Ranch TX0860113 | 42 | 0 | 0 | 1 | 29.2 ppb |
| Lcra Harper Water System TX0860106 | 381 | 0 | 0 | 0 | 0.7 ppb |
| Deerwood Subdivision TX0860098 | 357 | 0 | 0 | 0 | 0 ppb |
| Harper Road Estates TX0860005 | 333 | 0 | 0 | 0 | 2 ppb |
| Northwest Hills Water Supply TX0860086 | 219 | 0 | 0 | 0 | 1 ppb |
| West Oak Heights TX0860100 | 213 | 0 | 0 | 0 | 0 ppb |
| Oakview Water System TX0860107 | 195 | 0 | 0 | 0 | 1.3 ppb |
| Reservation Ranch TX0860212 | 180 | 0 | 0 | 0 | not reported |
| Siracusa Rentals TX0860214 | 31 | 0 | 0 | 0 | not reported |
ZIP reports in Gillespie County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 78618, 78675.
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.