Water quality in Houston, Texas
Houston is in Harris County. 1,320 active public water systems serve the county; 679 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 Harris County
713 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Harris County MUD 537 |
1,416 | 0 | 3.2 mi | |
| Rice University |
8,415 | 5 | 4.8 mi | |
| City of West University Place |
19,200 | 3 | 5.5 mi | |
| City of Hilshire Village |
945 | 1 | 6.0 mi | |
| City of Southside Place |
2,457 | 1 | 6.0 mi | |
| Nitsch & Son Utility |
2,190 | 3 | 6.3 mi | |
| Melrose MHP |
186 | 0 | 6.5 mi | |
| Carby Mobile Home Park |
210 | 0 | 6.5 mi | |
| Country Living Apartments |
105 | 2 | 6.6 mi | |
| Stetner Addition |
150 | 0 | 6.8 mi | |
| Tasfield |
222 | 0 | 6.9 mi | |
| City of Spring Valley Village |
4,229 | 0 | 6.9 mi | |
| Aldine Oaks MHP |
150 | 0 | 7.1 mi | |
| Sunbelt Fwsd Oakwilde Subdivision |
6,819 | 1 | 7.1 mi | |
| Westfield Garden Mobile Home Park |
942 | 0 | 7.1 mi | |
| Mesquite MHP |
60 | 0 | 7.1 mi | |
| City of Bellaire |
18,090 | 3 | 7.2 mi | |
| Sunbelt Fwsd Northline Terrace |
3,225 | 1 | 7.2 mi | |
| Greenwood Village |
2,514 | 0 | 7.2 mi | |
| Lone Willow MHP West |
75 | 3 | 7.3 mi | |
| Cna Plaza Apartments |
80 | 4 | 7.3 mi | |
| Balaban Apartments 2 |
50 | 2 | 7.3 mi | |
| Hooks Mobile Home Park |
585 | 0 | 7.4 mi | |
| Memorial Villages Water Authority |
11,382 | 1 | 7.4 mi | |
| Mary Francis Subdivision |
1,785 | 0 | 7.4 mi |
Non-community systems in Harris County (606: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Harris County, nearest to Houston 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. Retrieved from ECHO on Oct 11, 2026.