Water quality for ZIP code 93237
ZIP 93237 covers Three Rivers in Tulare County, California, one of 40 ZIP codes in the county. 290 active public water systems serve the county; 121 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Tulare County
90 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Tulare, City of Tulare |
72,241 | 0 | |
| Porterville, City of Porterville |
63,487 | 1 | |
| Dinuba, City of Dinuba |
27,641 | 1 | |
| Lindsay, City of Lindsay |
12,659 | 1 | |
| Exeter, City of Exeter |
11,169 | 1 | |
| Farmersville, City of Farmersville |
10,243 | 1 | |
| Orosi Public Utility District |
8,300 | 0 | |
| Woodlake, City of Woodlake |
7,918 | 0 | |
| Earlimart Pud |
7,679 | 1 | |
| Cutler Pud |
6,200 | 2 | |
| Ivanhoe Public Utility Dist |
4,580 | 1 | |
| Nps-Ash Mountain |
2,930 | 2 | |
| Pixley Public Util Dist |
2,772 | 1 | |
| Strathmore Public Util Dist |
2,669 | 0 | |
| Terra Bella Irrigation District Tbt |
2,656 | 1 | |
| Tipton Community Services Dist |
2,543 | 0 | |
| Poplar Comm Service Dist |
2,200 | 0 | |
| London Community Serv Dist |
1,800 | 0 | |
| Woodville Public Utility Dist |
1,740 | 1 | |
| Richgrove Community Services District |
1,617 | 8 | |
| Springville Pud |
1,500 | 1 | |
| Del Oro River Island Serv Terr #1 |
1,277 | 2 | |
| Sultana Community Services District |
983 | 1 | |
| Alpaugh Community Services District |
871 | 0 | |
| Cws Tulco Water Company |
716 | 0 |
Non-community systems in Tulare County (199: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Tulare 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 California 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.