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 |
|---|---|---|---|---|
| Mound City PWS | Mound City, MO | 1,159 | 5 | Clean |
| Basin Water Sources Inc | Cle Elum, WA | 1,158 | 32 | - |
| Medina River West WSC | Castroville, TX | 1,158 | 23 | - |
| Harris County MUD 500 | Houston, TX | 1,158 | 3 | - |
| Harris County MUD 122 | Houston, TX | 1,158 | 3 | - |
| Gallaway Water Dept | Gallaway, TN | 1,158 | 40 | - |
| Guernsey, Town Of | Guernsey, WY | 1,157 | 121 | - |
| Meadowmeer | Port Orchard, WA | 1,157 | 773 | - |
| Sumner Co RWD 4 | Arkansas City, KS | 1,157 | 81 | - |
| Argyle Water System, Inc. | Defuniak Springs, FL | 1,157 | 31 | - |
| Town of Star Valley Water Department | Payson, AZ | 1,157 | 324 | - |
| Lemmon | Lemmon, SD | 1,156 | 105 | - |
| Deadwood | Deadwood, SD | 1,156 | 15 | - |
| Boyle-Skene W/a #2 | Boyle, MS | 1,156 | 573 | - |
| Mt McKinley Princess Lodge | Denali Park, AK | 1,156 | 258 | - |
| Aqua Utilities | Parsons, TN | 1,155 | 35 | - |
| Vernon Village | Veronon, NY | 1,155 | 41 | - |
| Powder Hill | Nashua, NH | 1,155 | 14 | - |
| Stromsburg, City Of | Stromsburg, NE | 1,155 | 35 | - |
| Village of Dry Prong Water System | Dry Prong, LA | 1,155 | 19 | - |
| Atwood | Atwood, IL | 1,155 | 44 | - |
| Strawberry Point Water Supply | Strawberry Point, IA | 1,155 | 21 | - |
| Gurley Water System | Gurley, AL | 1,155 | 34 | - |
| Northern Adirondack Cen. Sch. | Ellenburg Depot, NY | 1,154 | 379 | - |
| Creighton, City Of | Creighton, NE | 1,154 | 50 | - |
| Grand Meadow | Grand Meadow, MN | 1,154 | 28 | - |
| Sonora Water Resources, Inc | Claremont, CA | 1,154 | 5 | - |
| Csp- Kirkwood Entrance | Felton, CA | 1,154 | 0 | - |
| Boston Harbor | Olympia, WA | 1,153 | 62 | - |
| Surry Schools | Surry, VA | 1,153 | 9 | - |
| Continental Village | Delphos, OH | 1,153 | 315 | - |
| Scenic Shores Subdivision | Eatonton, GA | 1,153 | 82 | - |
| Watco Water | Tucson, AZ | 1,153 | 79 | - |
| Clear Lakes | Austin, TX | 1,152 | 20 | - |
| City of Beckville | Beckville, TX | 1,152 | 95 | - |
| Monetta Town of (Sc0210008) | Monetta, SC | 1,152 | 62 | - |
| Magnolia-Penn Mill Lakes | Des Peres, LA | 1,152 | 17 | - |
| Clay City Water Works | Clay City, IN | 1,152 | 52 | - |
| Laytonville County Water District | Laytonville, CA | 1,152 | 34 | - |
| Campground Water Assn | Oxford, MS | 1,151 | 279 | - |
| Glidden Water Supply | Glidden, IA | 1,151 | 25 | - |
| Laton Community Services District | Laton, CA | 1,151 | 19 | Detected |
| Vaya Chin Intertie | Sells, 09 | 1,151 | 15 | Clean |
| Luck Waterworks | Luck, WI | 1,150 | 7 | - |
| Kopachuck Middle & Voyager Elem WS | Gig Harbor, WA | 1,150 | 26 | - |
| Churchville - Acsa | Verona, VA | 1,150 | 13 | - |
| Erda Acres Water Co | Erda, UT | 1,150 | 91 | - |
| Murray State College | Tishomingo, OK | 1,150 | 199 | - |
| Holgate Village | Holgate, OH | 1,150 | 166 | - |
| Villa Roma Country Club | Beach Lake, NY | 1,150 | 72 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).