Public Water Systems
143,076 active public water systems, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Vail Assoc Blue Sky Basin Warming Hut | Vail, CO | 1,000 | 0 | - |
| Ridgway Town Of | Ridgway, CO | 1,000 | 97 | - |
| Homestead WC | Evergreen, CO | 1,000 | 244 | - |
| Consolidated Bell Mtn Ranch MD | Castle Rock, CO | 1,000 | 4 | - |
| North Lincoln WSD | Denver, CO | 1,000 | 6 | - |
| Mile HI Water Inc Hauler | Boulder, CO | 1,000 | 147 | - |
| Longview MHP | Lakewood, CO | 1,000 | 15 | - |
| Byers WSD | Byers, CO | 1,000 | 26 | - |
| Pacific Coast Producers | Woodland, CA | 1,000 | 13 | - |
| Caltrans-Dunigan Rs | Sacramento, CA | 1,000 | 0 | - |
| Usbr-Tuttletown Rec Area | Sonora, CA | 1,000 | 6 | - |
| Arco Am Pm - Pixley | Pixley, CA | 1,000 | 27 | - |
| Caltrans Phillip S. Raine Sfty Rsra Sb | Fresno, CA | 1,000 | 24 | - |
| Our Lady of Assumption Church | Turlock, CA | 1,000 | 12 | - |
| Sutter Santa Rosa Regional Hospital | Santa Rosa, CA | 1,000 | 0 | - |
| Caltrans-Weed Rest Stop | Redding, CA | 1,000 | 4 | - |
| Rsm Resort LLC | Santa Barbara, CA | 1,000 | 8 | - |
| Lake Cachuma County Park | Santa Barbara, CA | 1,000 | 2 | - |
| La Purisima Golf Course | Lompoc, CA | 1,000 | 5 | - |
| Rancho Maria Golf Course | Santa Maria, CA | 1,000 | 9 | - |
| Horizon Christian Fellowship | Stockton, CA | 1,000 | 37 | - |
| Jahant Food N Fuel Stop | Lodi, CA | 1,000 | 12 | - |
| Smk Chevron | Morada, CA | 1,000 | 2 | - |
| King Island Resort PWS | Stockton, CA | 1,000 | 28 | - |
| DE Anza Springs Resort | Chula Vista, CA | 1,000 | 32 | - |
| Mountain Empire High School | Pine Valley, CA | 1,000 | 10 | - |
| Rasor Road Service | Baker, CA | 1,000 | 4 | - |
| Mt Baldy Ski Lift | Mt Baldy, CA | 1,000 | 3 | - |
| Emerald Cove Resort | Parker Dam, CA | 1,000 | 24 | - |
| Baker Community Services District | Baker, CA | 1,000 | 12 | - |
| Elkhorn I-5 Rest Area | Sacramento, CA | 1,000 | 0 | - |
| Cal-Trans Wiley Well Rest Stop | San Bernardino, CA | 1,000 | 4 | - |
| Loomis Community Park | Loomis, CA | 1,000 | 5 | - |
| Veterans Home of California | Yountville, CA | 1,000 | 9 | - |
| Mammoth Lakes Basin | Bishop, CA | 1,000 | 2 | - |
| Yosemite Nps-Badger Pass | Yosemite Np, CA | 1,000 | 0 | - |
| Yosemite Nps-Yosemite Valley | Yosemite Np, CA | 1,000 | 7 | - |
| Lakeside County Park | Lakeport, CA | 1,000 | 12 | - |
| Cal Trans - Coso Junction | Bishop, CA | 1,000 | 0 | - |
| Sue-Meg Sp-State Parks | Eureka, CA | 1,000 | 5 | - |
| Caltrans-Trinidad Nb | Eureka, CA | 1,000 | 5 | - |
| Heavenly Ski Creek Station | Stateline, CA | 1,000 | 26 | - |
| Easton Authority Jpa | Fresno, CA | 1,000 | 44 | - |
| Ca State Parks - Emerald Bay, Eagle Poin | Tahoma, CA | 1,000 | 5 | - |
| The Pub Water System | Somerset, CA | 1,000 | 28 | - |
| Henningsen Lotus Park Water System | Placerville, CA | 1,000 | 16 | - |
| Camp Lotus Water System | Lotus, CA | 1,000 | 25 | - |
| Nugget Campground | Lotus, CA | 1,000 | 75 | - |
| Palermo Bible Family Church | Palermo, CA | 1,000 | 4 | - |
| Adot Haviland Rest Area | Phoenix, AZ | 1,000 | 52 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).