Water quality for ZIP code 79721
ZIP 79721 covers Big Spring in Howard County, Texas, one of 5 ZIP codes in the county. 9 active public water systems serve the county; 6 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Howard County
2 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| City of Coahoma |
3,552 | 3 | |
| City of Forsan |
228 | 6 |
Non-community systems in Howard County (6: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Buffalo Country Uncles 130216 |
375 | 1 | 1 | |
|
George H Obrien JR VA Medical Center |
325 | 7 | 2 | |
|
Txdot Howard County Sra |
300 | 1 | 0 | |
|
Ahg Big Spring |
220 | 0 | 0 | |
|
Nustar Big Spring Terminal |
92 | 0 | 0 | |
|
Rock Ridge Field Office |
29 | 0 | 0 |
About this data
Water systems are matched to Howard County, the county this ZIP code lies in, largest 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.
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.