Water quality for ZIP code 78148
ZIP 78148 covers Universal City, Randolph AFB, Live Oak, Schertz, and Converse in Bexar County, Texas, one of 70 ZIP codes in the county. 81 active public water systems serve the county; 54 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 |
|---|---|---|---|---|
| City of Universal City |
20,119 | 1 | 0.9 mi | |
| City of Converse |
29,709 | 0 | 2.2 mi | |
| City of Live Oak |
8,724 | 0 | 2.7 mi | |
| City of Selma |
11,418 | 1 | 3.1 mi | |
| Bexar County Wcid 10 Windcrest |
8,154 | 1 | 5.4 mi | |
| City of Kirby |
8,142 | 4 | 7.9 mi | |
| Jbsa Sam Houston |
37,563 | 1 | 10.3 mi | |
| City of Alamo Heights |
7,357 | 2 | 11.2 mi | |
| East Central SUD |
26,137 | 0 | 11.3 mi | |
| Cadillac Water |
252 | 0 | 13.7 mi | |
| Estates Utility Stonegate |
276 | 0 | 14.5 mi | |
| Oak North Mobile Homes Estates |
1,059 | 0 | 15.8 mi | |
| City of Shavano Park |
2,200 | 5 | 15.8 mi | |
| San Antonio Water System |
2,643,729 | 0 | 16.2 mi | |
| Bavarian Hills |
207 | 0 | 16.7 mi | |
| East Central SUD Palm Park Water |
882 | 1 | 18.4 mi | |
| North Breeze MHP |
123 | 4 | 19.4 mi | |
| City of Leon Valley |
6,870 | 2 | 19.4 mi | |
| City of Elmendorf |
4,221 | 2 | 20.6 mi | |
| Evetts Apartments |
51 | 6 | 21.6 mi | |
| Jbsa Lackland |
20,907 | 0 | 21.8 mi | |
| Camp Stanley |
133 | 1 | 22.1 mi | |
| Lazy Acres Trailer Park |
105 | 4 | 22.2 mi | |
| The Oaks WSC |
1,191 | 1 | 23.7 mi | |
| Water Exploration Stein Roger Well Field |
0 | 2 | 23.8 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, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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. Retrieved from ECHO on Oct 11, 2026.