Water quality in Castle Hills, Texas
Castle Hills is in Bexar County. 81 active public water systems serve the county; 55 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Bexar County
41 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Cadillac Water |
252 | 0 | 3.6 mi | |
| City of Alamo Heights |
7,357 | 2 | 4.2 mi | |
| City of Shavano Park |
2,200 | 5 | 4.7 mi | |
| North Breeze MHP |
123 | 4 | 5.9 mi | |
| City of Leon Valley |
6,870 | 2 | 6.1 mi | |
| Jbsa Sam Houston |
37,563 | 1 | 6.6 mi | |
| Evetts Apartments |
51 | 6 | 8.3 mi | |
| Bexar County Wcid 10 Windcrest |
8,154 | 1 | 8.4 mi | |
| City of Kirby |
8,142 | 4 | 9.1 mi | |
| Jbsa Lackland |
20,907 | 0 | 11.1 mi | |
| City of Live Oak |
8,724 | 0 | 11.2 mi | |
| Grey Forest Water System |
663 | 4 | 11.8 mi | |
| Estates Utility Stonegate |
276 | 0 | 12.1 mi | |
| City of Converse |
29,709 | 0 | 12.8 mi | |
| Cordi Marian Villa |
48 | 4 | 12.8 mi | |
| City of Universal City |
20,119 | 1 | 12.9 mi | |
| Oak North Mobile Homes Estates |
1,059 | 0 | 13.0 mi | |
| City of Selma |
11,418 | 1 | 13.1 mi | |
| Lazy Acres Trailer Park |
105 | 4 | 13.2 mi | |
| Bavarian Hills |
207 | 0 | 13.2 mi | |
| Stagecoach Hills |
489 | 1 | 13.3 mi | |
| Camp Stanley |
133 | 1 | 13.7 mi | |
| The Oaks WSC |
1,191 | 1 | 13.7 mi | |
| Jbsa Medina |
3,650 | 0 | 13.9 mi | |
| Jbsa Randolph |
10,949 | 0 | 14.4 mi |
Non-community systems in Bexar County (39: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Bexar County, nearest to Castle Hills first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Texas records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.