Water quality for ZIP code 77866
Brazos County, Texas, one of 9 ZIP codes in the county. 13 active public water systems serve the county; 11 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Brazos County
10 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| City of Bryan |
91,031 | 1 | |
| Texas A&m University Main Campus |
58,500 | 2 | |
| Wellborn SUD |
25,092 | 0 | |
| Wickson Creek SUD |
15,000 | 2 | |
| Benchley Oaks Subdivision |
567 | 2 | |
| Ramblewood Mobile Home Park |
350 | 3 | |
| Lakewood Estates |
202 | 1 | |
| Smetana Forest |
150 | 2 | |
| Carousel Mobile Home Park |
56 | 2 | |
| AL Leonard Ranch |
31 | 5 |
Non-community systems in Brazos County (2: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sanderson Farms Bryan Facility |
1,400 | 1 | 0 | |
|
Wheelock Express |
156 | 1 | 0 |
About this data
Water systems are matched to Brazos 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.