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 |
|---|---|---|---|---|
| Briarcliff Manor Village | Briarcliff Manor, NY | 9,190 | 98 | Clean |
| Louisville City PWS | Louisville, OH | 9,186 | 40 | Detected |
| Fallon City Of | Fallon, NV | 9,184 | 214 | Clean |
| Alma, City Of | Alma, MI | 9,182 | 1 | Clean |
| Graysville Water & Sewer Board | Graysville, AL | 9,180 | 7 | Clean |
| Arizona Water Co - Sierra Vista | Phoenix, AZ | 9,175 | 85 | Detected |
| Ashland City Water Department | Ashland City, TN | 9,173 | 29 | Clean |
| City of Gonzales | Gonzales, TX | 9,172 | 80 | Detected |
| Moongate Water System | Organ, NM | 9,170 | 84 | Clean |
| Greene County PWSD 1 | Battlefield, MO | 9,168 | 94 | Clean |
| Saline | Saline, MI | 9,158 | 26 | Clean |
| Stevensville | Stevensville, MD | 9,155 | 19 | Clean |
| Harris County Wcid 119 | Houston, TX | 9,150 | 7 | Detected |
| Lynwood | Lynwood, IL | 9,149 | 51 | Clean |
| Albion | Albion, MI | 9,144 | 48 | Clean |
| First U.d. of Carter County | Elizabethton, TN | 9,143 | 194 | Clean |
| Newark Village | Shortsville, NY | 9,142 | 83 | Clean |
| Paradise Irrigation District | Paradise, CA | 9,142 | 21 | Clean |
| South Haven Area Water & Sewer Authority | South Haven, MI | 9,133 | 16 | Clean |
| Plymouth | Plymouth, MI | 9,132 | 24 | Clean |
| Sharon WSC | Winnsboro, TX | 9,111 | 24 | Clean |
| Sheffield Lake City PWS | Sheffield Lake, OH | 9,108 | 11 | Clean |
| Nevada ID - Lake Wildwood | Grass Valley, CA | 9,108 | 0 | Clean |
| Southside Pub Water Authority | Batesville, AR | 9,108 | 28 | Clean |
| Gsw&sa-Marion City of (Sc3310001) | Conway, SC | 9,104 | 4 | Clean |
| Benton Harbor | Benton Harbor, MI | 9,103 | 843 | Clean |
| Ellsworth Afb | Ellsworth Afb, SD | 9,100 | 17 | Clean |
| Muni Auth of Washington Twp | Belle Vernon, PA | 9,100 | 179 | Clean |
| Warrenton, City Of | Warrenton, OR | 9,100 | 137 | Clean |
| Paris | Paris, IL | 9,100 | 41 | Clean |
| Tehachapi, City Of | Tehachapi, CA | 9,094 | 24 | Clean |
| Georgetown City of (Sc2210001) | Georgetown, SC | 9,092 | 68 | Detected |
| Combined Consumers Sud | Quinlan, TX | 9,087 | 81 | Detected |
| Matawan Borough Water DE | Matawan, NJ | 9,084 | 228 | Detected |
| City of Lucas | Lucas, TX | 9,080 | 20 | Detected |
| Dubois Water Utilities | Dubois, IN | 9,078 | 1 | Clean |
| Leflore Co. RWD #14 | Spiro, OK | 9,077 | 154 | Clean |
| Charlotte, City Of | Charlotte, MI | 9,074 | 8 | Detected |
| Bennettsville City of (Sc3410001) | Bennettsville, SC | 9,070 | 138 | Clean |
| Little Falls | Little Falls, MN | 9,069 | 8 | Detected |
| Harwood Heights | Hardwood Heights, IL | 9,065 | 37 | Clean |
| Larue County Water District #1 | Hodgenville, KY | 9,062 | 74 | Clean |
| East Logan Water District | Russellvile, KY | 9,060 | 54 | Clean |
| South Harrison Water Corporation | Corydon, IN | 9,057 | 56 | Clean |
| Bedford Consolidated W.D. | Bedford Hills, NY | 9,056 | 23 | Detected |
| Morehead Utility Plant Board | Morehead, KY | 9,052 | 693 | Clean |
| Scriba WD (Oswego) | Scriba, NY | 9,044 | 12 | Clean |
| Davenport, City Of | Davenport, FL | 9,043 | 67 | Detected |
| Albany Water Works | Albany, KY | 9,042 | 224 | Clean |
| Harris County Wcid 89 | Houston, TX | 9,033 | 34 | Clean |