Water quality for ZIP code 93640
ZIP 93640 covers Mendota in Fresno County, California, one of 55 ZIP codes in the 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 |
|---|---|---|---|---|
| Mendota, City of Mendota |
12,595 | 0 | 6.6 mi | |
| CC Farms, Llc. |
82 | 0 | 8.3 mi | |
| Las Deltas Mutual Water Company |
375 | 2 | 8.9 mi | |
| Tranquillity Irrigation District |
686 | 3 | 10.4 mi | |
| Fcsa 30 EL Porvenir |
241 | 1 | 12.2 mi | |
| Firebaugh City Firebaugh |
8,424 | 0 | 12.5 mi | |
| Fcsa 32 Cantua Creek |
468 | 0 | 13.6 mi | |
| Cantua Creek Vineyards, Iv, Llc. |
55 | 0 | 13.8 mi | |
| Westside Harvesting |
69 | 1 | 14.1 mi | |
| San Joaquin, City of San Joaquin |
4,060 | 0 | 15.2 mi | |
| Panoche Water District |
225 | 0 | 16.3 mi | |
| Five Points Ranch |
95 | 0 | 19.6 mi | |
| Helm School |
25 | 1 | 21.5 mi | |
| Kerman, City of Kerman |
17,256 | 0 | 21.5 mi | |
| Britz/colusa |
40 | 1 | 23.7 mi | |
| Harris Farms/horse Barn |
20 | 0 | 24.3 mi | |
| Biola Community Services Dist |
1,427 | 0 | 25.3 mi | |
| Fcsa 49 Five Points |
440 | 0 | 25.4 mi | |
| Britz/five Points |
76 | 1 | 25.5 mi | |
| Harris Farms Headquarters |
140 | 2 | 26.2 mi | |
| Rau Dairy |
66 | 0 | 26.6 mi | |
| Harris Feeding Company |
22 | 1 | 27.6 mi | |
| Harris Farms South 101-144 |
75 | 0 | 29.0 mi | |
| Fcsa 43 Raisin City |
182 | 0 | 30.5 mi | |
| Terra Linda Farms |
79 | 0 | 31.3 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, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
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.