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 |
|---|---|---|---|---|
| Moravia Village | Moravia, NY | 1,950 | 16 | Clean |
| Allegany Mountain Resort | East Otto, NY | 1,950 | 4 | - |
| Caesars Republic Lake Tahoe | Stateline, NV | 1,950 | 0 | - |
| Thompson Falls City Of | Thompson Falls, MT | 1,950 | 38 | - |
| Choudrant Water System | Choudrant, LA | 1,950 | 120 | - |
| Wonder Lake (Niu) | Wonder Lake, IL | 1,950 | 402 | - |
| Pinehurst Water Dist | Pinehurst, ID | 1,950 | 76 | - |
| Round Mountain WSD | Westcliffe, CO | 1,950 | 38 | - |
| Kearny Town Of | Kearny, AZ | 1,950 | 158 | - |
| Marana Dwid - Derringer | Marana, AZ | 1,950 | 287 | - |
| Ethete Water System | Fort Washakie, 08 | 1,950 | 639 | - |
| Acoma Sky City Casino | Acoma, 06 | 1,950 | 27 | - |
| City of Horn Lake - Twin Lakes | Horn Lake, MS | 1,948 | 93 | - |
| Cass County PWSD 11 | Garden City, MO | 1,948 | 6 | - |
| Minneapolis, City Of | Minneapolis, KS | 1,948 | 36 | - |
| City of Lake Wales/Park Water Company | Lake Wales, FL | 1,948 | 46 | Clean |
| Flaming Geyser State Park | Burlington, WA | 1,947 | 0 | - |
| Chisholm Springs | Austin, TX | 1,947 | 10 | - |
| South Rusk County WSC | Laneville, TX | 1,947 | 81 | - |
| Laurium | Calumet, MI | 1,947 | 0 | - |
| Noank Fire District | Noank, CT | 1,947 | 59 | - |
| Golden State Water Company - Tanglewood | Hawthorne, CA | 1,947 | 0 | - |
| Mannington City Of | Mannington, WV | 1,946 | 99 | - |
| Weaverland Valley Blue Ball | East Earl, PA | 1,946 | 59 | - |
| Schodack Consolidated Water District 101 | Castleton, NY | 1,946 | 2 | - |
| Sparta PWS | Sparta, MO | 1,946 | 63 | - |
| Ventura Cwwd No. 17 - Bell Canyon | Moorpark, CA | 1,946 | 0 | - |
| West Corinne Water Co | Brigham City, UT | 1,945 | 197 | - |
| Sharpsburg, Town Of | Sharpsburg, NC | 1,945 | 310 | - |
| Town of Decatur | Decatur, MS | 1,945 | 285 | - |
| Kaupulehu | Kailua-Kona, HI | 1,945 | 42 | - |
| Toledo Municipal | Toledo, WA | 1,944 | 22 | - |
| Quail Creek MUD | Victoria, TX | 1,944 | 183 | - |
| Harris County MUD 494 | Houston, TX | 1,944 | 0 | - |
| Oak Village North | Austin, TX | 1,944 | 61 | - |
| Porterdale | Porterdale, GA | 1,944 | 45 | - |
| Seymour PWS | Seymour, MO | 1,943 | 97 | - |
| Mescalero Community | 06 | 1,943 | 119 | - |
| Grandview - Doolin Psd | Proctor, WV | 1,942 | 155 | - |
| City of Quitman | Quitman, TX | 1,942 | 4 | - |
| Harris County MUD 420 | Houston, TX | 1,941 | 0 | - |
| Mountain WSD | Conifer, CO | 1,941 | 221 | - |
| McDonalds Milw St | Poynette, WI | 1,940 | 114 | - |
| Castleton Fire District 1 | Castleton, VT | 1,940 | 209 | - |
| Battle Ground Water District | Battle Ground, IN | 1,940 | 16 | - |
| Culver Educational Foundation | Culver, IN | 1,940 | 163 | - |
| Sierra Tahoe Main Lodge | Twin Bridges, CA | 1,940 | 137 | Detected |
| Kinnelon Water Dept | Kinnelon, NJ | 1,938 | 133 | - |
| Bay Waterworks | Bay, AR | 1,938 | 24 | - |
| Las Campanas Water System | Santa Fe, NM | 1,937 | 37 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).