Water quality in Santa Ana, California
Santa Ana is in Orange County. 46 active public water systems serve the county; 6 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 Orange County
39 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| City of Tustin Tustin |
65,143 | 0 | 3.9 mi | |
| City of Fountain Valley Fountain Valley |
56,747 | 0 | 4.4 mi | |
| Mesa Water District |
110,000 | 0 | 5.2 mi | |
| City of Garden Grove Garden Grove |
174,226 | 0 | 5.4 mi | |
| City of Orange Orange |
120,770 | 0 | 5.6 mi | |
| East Orange County WD RZ |
3,464 | 0 | 5.7 mi | |
| Eastside Water Association |
2,000 | 1 | 5.9 mi | |
| South Midway City Mutual Water Co. Midway City |
891 | 0 | 6.1 mi | |
| Midway City Mutual WC Midway City |
1,305 | 0 | 6.1 mi | |
| Golden State WC Cowan Heights |
7,006 | 0 | 6.3 mi | |
| City of Westminster Westminster |
93,591 | 0 | 6.5 mi | |
| Liberty Park Water Association |
95 | 3 | 6.7 mi | |
| Serrano Water District |
5,659 | 0 | 7.0 mi | |
| City of Anaheim Anaheim |
350,254 | 1 | 7.1 mi | |
| Hynes Estates Mutual Water Co. |
168 | 1 | 7.4 mi | |
| City of Huntington Beach Huntington Beach |
201,000 | 0 | 7.5 mi | |
| City of Newport Beach Newport Beach |
69,520 | 0 | 8.4 mi | |
| Irvine Ranch Water District |
450,323 | 0 | 8.7 mi | |
| Page Avenue Mutual Water Company |
119 | 2 | 9.5 mi | |
| Golden State WC Placentia/yorba Linda |
50,804 | 0 | 10.0 mi | |
| Golden State WC West Orange County |
114,693 | 0 | 10.2 mi | |
| City of Fullerton Fullerton |
140,054 | 0 | 10.5 mi | |
| City of Buena Park Buena Park |
82,667 | 0 | 10.9 mi | |
| City of Seal Beach Seal Beach |
24,937 | 0 | 11.0 mi | |
| Yorba Linda Water District |
84,292 | 0 | 12.2 mi |
Non-community systems in Orange County (6: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Knott's Berry Farm |
3,000 | 0 | 0 | |
|
Los Alamitos Race Course |
1,600 | 1 | 1 | |
|
Canyon RV Park |
24 | 0 | 0 | |
|
Smwd-Nichols Institute |
1,600 | 0 | 0 | |
|
Lazy W Ranch Water System |
63 | 0 | 0 | |
|
Caspers Regional Wilderness Park |
239 | 0 | 0 |
About this data
Water systems are matched to Orange County, nearest to Santa Ana 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 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.