All water systems in California
2,996 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Panamint Springs Resort Inyo County |
216 | 1 | 0 | |
|
Alpine View Campground Trinity County |
215 | 0 | 0 | |
|
Barstow Calico KOA San Bernardino County |
215 | 0 | 0 | |
|
Holman Ranch WS Monterey County |
215 | 0 | 0 | |
|
Moaning Cavern Calaveras County |
215 | 0 | 0 | |
|
Skippers Cove Nevada County |
215 | 0 | 0 | |
|
Gizdich Home Ranch Santa Cruz County |
213 | 0 | 0 | |
|
Camp ST Nicholas Water System Kern County |
212 | 1 | 0 | |
|
Canyon Creek Resort Yolo County |
212 | 0 | 0 | |
|
Hari's Market Tulare County |
212 | 1 | 0 | |
|
Mandala Water System Lake County |
212 | 0 | 0 | |
|
Pine Grove Campground Mono County |
211 | 0 | 0 | |
|
Shasta Caverns Shasta County |
211 | 0 | 0 | |
|
Calero County Park Santa Clara County |
210 | 0 | 0 | |
|
Metcalf Motorcycle County Park Santa Clara County |
210 | 0 | 0 | |
|
Nps-Potwisha Tulare County |
210 | 0 | 0 | |
|
Westgate Petroleum Lakeport · Lake County |
210 | 0 | 0 | |
|
Big Sur Campground WS Monterey County |
209 | 0 | 0 | |
|
Bell Wine Cellars Napa · Napa County |
208 | 0 | 0 | |
|
Saratoga Springs Retreat Center Lake County |
208 | 0 | 0 | |
|
Tucalota Springs R.v. Park Riverside County |
208 | 0 | 0 | |
|
Usfs Hirz Bay/dekkas/moore CR Shasta County |
208 | 0 | 0 | |
|
Cypress Community Church WS Monterey County |
207 | 0 | 0 | |
|
Parrish Family Winery San Luis Obispo County |
207 | 0 | 0 | |
|
Scicon Tulare County |
207 | 0 | 0 | |
|
Alexander Valley Campground County |
205 | 0 | 0 | |
|
Byron Corners INC Contra Costa County |
205 | 0 | 0 | |
|
Dunnigan Chevron Yolo County |
205 | 0 | 0 | |
|
Optimists Volunteers for Youth San Mateo County |
205 | 1 | 0 | |
|
Orange Grove RV Park Kern County |
205 | 1 | 0 | |
|
Scout Island Fresno · Fresno County |
205 | 1 | 0 | |
|
Csp-Sugarloaf Ridge State Park Sonoma County |
204 | 0 | 0 | |
|
Emerald Cove Camp Madera County |
204 | 1 | 0 | |
|
Gonzales Gas Station WS Monterey County |
204 | 1 | 0 | |
|
Lake Spaulding Campground Nevada County |
204 | 0 | 0 | |
|
New Hope Community Church Fresno County |
204 | 0 | 0 | |
|
Rmrc-Wishon Campground Tulare County |
204 | 0 | 0 | |
|
Silverthorn Resort Shasta County |
204 | 0 | 0 | |
|
The Ranch Church Santa Barbara County |
204 | 0 | 0 | |
|
Usfs Sandy Flat Campground WS Kern County |
204 | 0 | 0 | |
|
School House Restaurant and Tavern Fresno County |
203 | 1 | 0 | |
|
Selma Exxon Tiger Mart Fresno County |
203 | 0 | 0 | |
|
Anchor Retreat Center Los Angeles County |
202 | 0 | 0 | |
|
Camp Ronald McDonald for G.t. Riverside County |
202 | 0 | 0 | |
|
Connection Point Church Vacaville · Solano County |
202 | 0 | 0 | |
|
Crossover Church of Rosedale WS Kern County |
202 | 0 | 0 | |
|
Csp-Limekiln Monterey County |
202 | 0 | 0 | |
|
Extra Mart Madera County |
202 | 0 | 0 | |
|
Kern CO P&r-Tehachapi MT Park Water Kern County |
202 | 0 | 0 | |
|
Nicasio Ranch LLC Marin County |
202 | 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.