Water quality in Three Rocks, California
Three Rocks is in Fresno County. 339 active public water systems serve the county; 128 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Fresno County
101 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Westside Harvesting |
69 | 1 | 2.2 mi | |
| Fcsa 32 Cantua Creek |
468 | 0 | 3.8 mi | |
| CC Farms, Llc. |
82 | 0 | 3.9 mi | |
| Cantua Creek Vineyards, Iv, Llc. |
55 | 0 | 4.4 mi | |
| Five Points Ranch |
95 | 0 | 8.8 mi | |
| Murrieta/hernandez Farms |
25 | 4 | 10.8 mi | |
| Tranquillity Irrigation District |
686 | 3 | 11.4 mi | |
| Harris Farms/horse Barn |
20 | 0 | 12.6 mi | |
| San Joaquin, City of San Joaquin |
4,060 | 0 | 13.5 mi | |
| Britz/colusa |
40 | 1 | 14.3 mi | |
| Harris Farms Headquarters |
140 | 2 | 15.0 mi | |
| Fcsa 49 Five Points |
440 | 0 | 15.7 mi | |
| Harris Feeding Company |
22 | 1 | 15.8 mi | |
| Helm School |
25 | 1 | 16.4 mi | |
| Britz/five Points |
76 | 1 | 17.1 mi | |
| Mendota, City of Mendota |
12,595 | 0 | 17.1 mi | |
| Harris Farms South 101-144 |
75 | 0 | 17.5 mi | |
| Las Deltas Mutual Water Company |
375 | 2 | 20.6 mi | |
| Terra Linda Farms |
79 | 0 | 20.8 mi | |
| Rau Dairy |
66 | 0 | 23.6 mi | |
| Kerman, City of Kerman |
17,256 | 0 | 23.8 mi | |
| Firebaugh City Firebaugh |
8,424 | 0 | 24.3 mi | |
| Coalinga-City Coalinga |
17,277 | 0 | 24.8 mi | |
| Lanare Community Services Dist |
540 | 0 | 26.2 mi | |
| Huron, City of Huron |
7,306 | 1 | 26.5 mi |
Non-community systems in Fresno County (237: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Fresno County, nearest to Three Rocks 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 or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
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 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.