All water systems in California
2,996 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
R-Ranch Headquarters Siskiyou County |
300 | 0 | 0 | |
|
R-Ranch Klamath River Siskiyou County |
300 | 0 | 0 | |
|
Rainbow Springs Public Water System Placer County |
300 | 0 | 0 | |
|
Rancho Market Redding · Shasta County |
300 | 0 | 0 | |
|
Riverboat Marina Sacramento County |
300 | 0 | 0 | |
|
Sacwest RV Park and Campground Yolo County |
300 | 0 | 0 | |
|
Strathmore Minimart Tulare County |
300 | 0 | 0 | |
|
Sutherland Reservoir Recreation Area San Diego County |
300 | 1 | 0 | |
|
Teal Bend Golf Course Sacramento County |
300 | 0 | 0 | |
|
Tnf-Aspen Creek/pass Creek Sierra County |
300 | 0 | 0 | |
|
U.s. Army Corps-Lake Mendo (pomo Site) Mendocino County |
300 | 0 | 0 | |
|
US Army Corps/island Park Fresno County |
300 | 1 | 0 | |
|
Usfs Sourgrass Campgd Tuolumne County |
300 | 0 | 0 | |
|
Usfs/jackass Meadow Campground Fresno County |
300 | 0 | 0 | |
|
Wilton Chevron Sacramento County |
300 | 2 | 0 | |
|
Yosemite Nps-May Lake Camp Mariposa County |
300 | 0 | 0 | |
|
Yosemite Nps-White Wolf Tuolumne County |
300 | 0 | 0 | |
|
Nps Manzanar Inyo County |
298 | 0 | 0 | |
|
Hidden View Hensley Lake Madera County |
297 | 0 | 0 | |
|
Don Pedro Rec Ag:blue Oaks Tuolumne County |
296 | 1 | 0 | |
|
Stanford Sierra Camp El Dorado County |
295 | 0 | 0 | |
|
Cdpr-McConnell Merced County |
288 | 0 | 0 | |
|
Oakhurst Christian Conf Center Madera County |
288 | 0 | 0 | |
|
Hagaman County Park Merced County |
285 | 0 | 0 | |
|
Camp Navarro Mendocino County |
284 | 0 | 0 | |
|
Dean Creek Resort Humboldt County |
283 | 0 | 0 | |
|
Wood Camp Water System Nevada County |
281 | 0 | 0 | |
|
Hat Creek Hereford Ranch RV Park Shasta County |
280 | 0 | 0 | |
|
Lake Isabella KOA Campground Kern County |
280 | 1 | 0 | |
|
Shepherd of the Mountains Lutheran Churc Kern County |
280 | 0 | 0 | |
|
Skylake Yosemite Camp Madera County |
280 | 0 | 0 | |
|
Moose Lodge 2096 San Bernardino County |
278 | 1 | 0 | |
|
Caltrans-Shingletown Srra Shasta County |
275 | 0 | 0 | |
|
Csp-Mendocino Headlands Ford House Mendocino County |
275 | 0 | 0 | |
|
Jehovah's Witnesses -Corning Tehama County |
275 | 0 | 0 | |
|
Fish Tail Inn Trinity County |
274 | 0 | 0 | |
|
Manchester Beach KOA Mendocino County |
273 | 0 | 0 | |
|
North Kern Golf Course Kern County |
273 | 0 | 0 | |
|
Walden West Santa Clara County |
273 | 0 | 0 | |
|
Csp Bodie Shp Mono County |
271 | 0 | 0 | |
|
Montecito Sequoia Lodge Tulare County |
270 | 1 | 0 | |
|
Park Delta Bay Sacramento County |
270 | 0 | 0 | |
|
Willow Heights Mansion Santa Clara County |
269 | 0 | 0 | |
|
Christian Berets Conf. Center Tuolumne County |
268 | 0 | 0 | |
|
Bob's Tiny Mart Tulare County |
265 | 1 | 0 | |
|
Nestldown Ranch Santa Clara County |
265 | 0 | 0 | |
|
The Cottages at Tenaya Lodge Mariposa County |
265 | 0 | 0 | |
|
Jpd Regional Police Training Center Fresno County |
264 | 0 | 0 | |
|
Naco West Russian River Preserve Sonoma County |
263 | 0 | 0 | |
|
Trinchero Winery Napa County |
263 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
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.