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 |
|---|---|---|---|---|
| St Joseph San Dist 1 | La Crosse, WI | 503 | 61 | - |
| Perry Lutheran Church | Mount Horeb, WI | 503 | 14 | - |
| Adams County Fair | Ritzville, WA | 503 | 26 | - |
| Zion Np- Kolob Visitor Center | Hurricane, UT | 503 | 34 | - |
| Bgwc Wintercrest (Sc4650017) | Elgin, SC | 503 | 365 | - |
| Stockport Village PWS | Stockport, OH | 503 | 14 | - |
| Bayshore Campground PWS | Andover, OH | 503 | 35 | - |
| St Jude the Apostle | Hamburg, NJ | 503 | 20 | - |
| Polar-Cub | Lebanon, NJ | 503 | 30 | - |
| Earthquake Lake Visitor Center | West Yellowstone, MT | 503 | 33 | - |
| Eddies Corner | South Jordan, MT | 503 | 25 | - |
| Washington County PWSD 1 | Potosi, MO | 503 | 201 | - |
| Marston PWS | Marston, MO | 503 | 59 | - |
| Rothsay | Rothsay, MN | 503 | 1 | - |
| Washington Co Agric Center | MD | 503 | 18 | - |
| St. Marks Church - Multipurpose | Fallston, MD | 503 | 4 | - |
| Highs Dairy Store #17 | West River, MD | 503 | 4 | - |
| Protection, City Of | Protection, KS | 503 | 73 | - |
| Kingsford Expo 66 | Hamlet, IN | 503 | 183 | - |
| Mississippi Manufactured Home Community | Troy, IL | 503 | 19 | - |
| Grizzly Peak Water Sales | Durango, CO | 503 | 197 | - |
| White Lotus | Santa Barbara, CA | 503 | 0 | - |
| Whitewater Preserve | White Water, CA | 503 | 13 | - |
| Csp-Standish Hickey State Rec Area | Eureka, CA | 503 | 9 | - |
| Csp - Tomales Bay St Park | Petaluma, CA | 503 | 2 | - |
| So HI Dwid | Golden Valley, AZ | 503 | 72 | - |
| Bellefonte Water | Everton, AR | 503 | 6 | - |
| Grand Teton Park RV Resort | Moran, WY | 502 | 81 | - |
| Camden on Gauley - Craigsville | Craigsville, WV | 502 | 426 | - |
| Northport Mart | New London, WI | 502 | 0 | - |
| Alto Reformed Church | Waupun, WI | 502 | 21 | - |
| Missing Links Golf Range | Mequon, WI | 502 | 3 | - |
| Zekes Drive-IN | Goldbar, WA | 502 | 5 | - |
| Nsc Ntf Potable Water System | Wadsworth, TX | 502 | 4 | - |
| Parvin State Park - Office/Beach System | Pittsgrove Twp, NJ | 502 | 27 | - |
| Our Lady of the Valley Catholic Church | Helena, MT | 502 | 19 | - |
| Montrose Water Association | Louin, MS | 502 | 356 | - |
| Ocwc Lantern Bay | Kimberling City, MO | 502 | 1 | - |
| Summersville PWS | Summersville, MO | 502 | 61 | - |
| Saint Georges Catholic Church | Valley Lee, MD | 502 | 0 | - |
| Sacred Heart Church | Bushwood, MD | 502 | 0 | - |
| Saint Marys Fairgrounds | Leonardtown, MD | 502 | 5 | - |
| Porter Quick Stop | Chesterton, IN | 502 | 164 | - |
| Pleasant Creek St Rec Area-South | Palo, IA | 502 | 57 | - |
| Walk-IN-The-Water Lake Estates | Winter Haven, FL | 502 | 21 | - |
| Countryside Estates Mhc | Pueblo, CO | 502 | 38 | - |
| Csp-Wrights Beach State Park | Mendocino, CA | 502 | 4 | - |
| Brendles Bay Inc | Parshall, 08 | 502 | 5 | - |
| WI DNR Mirror Lake Sandstone Ridge | Baraboo, WI | 501 | 5 | - |
| Deming Water Assoc. | Deming, WA | 501 | 21 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).