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 |
|---|---|---|---|---|
| Dodge City, City Of | Dodge City, KS | 27,104 | 112 | Detected |
| Wakefield Water Dept | Wakefield, MA | 27,090 | 113 | Detected |
| Wilmette | Wilmette, IL | 27,087 | 26 | Clean |
| Saugus Water Dept. (Mwra) | Saugus, MA | 27,082 | 26 | Clean |
| Eureka, City Of | Eureka, CA | 27,078 | 2 | Clean |
| Gswc-South Arcadia | San Dimas, CA | 27,072 | 3 | Detected |
| City of Cumberland | Cumberland, MD | 27,039 | 15 | Clean |
| Conway City of (Sc2610008) | Conway, SC | 27,005 | 4 | Detected |
| Lake Asbury Grid | Middleburg, FL | 27,001 | 28 | Clean |
| Auth of Boro of Charleroi | Charleroi, PA | 27,000 | 641 | Clean |
| Perrysburg City | Whitehouse, OH | 27,000 | 18 | Clean |
| Gladstone PWS | Gladstone, MO | 27,000 | 1 | Clean |
| South Martin Regional Utilities | Hobe Sound, FL | 27,000 | 122 | Detected |
| College Utilities Corporation | Fairbanks, AK | 27,000 | 101 | Detected |
| Calera Water Works | Calera, AL | 26,982 | 85 | Clean |
| Oak Island, Town Of | Oak Island, NC | 26,924 | 98 | Detected |
| Pittsburgh Intl Airport | Pittsburgh, PA | 26,915 | 43 | Detected |
| Whitworth Water District 2 | Mead, WA | 26,883 | 434 | Detected |
| University of Mississippi | Oxford, MS | 26,874 | 523 | Detected |
| Brawley, City Of | Brawley, CA | 26,862 | 23 | Clean |
| Immokalee Water | Immokalee, FL | 26,841 | 99 | Detected |
| Forest Grove, City Of | Forest Grove, OR | 26,838 | 45 | Clean |
| Belmont Co. Sanitary District 3 PWS | Barnesville, OH | 26,822 | 51 | Clean |
| Edwardsville | Edwardsville, IL | 26,808 | 33 | Detected |
| Prestonsburg City Utilities | Prestonsburg, KY | 26,788 | 378 | Clean |
| Citrus Springs - Pine Ridge | Lecanto, FL | 26,781 | 68 | Clean |
| Southwest Michigan Regional Sanitary Sew | St. Joseph, MI | 26,780 | 0 | Clean |
| Mahwah Water Department | Mahwah, NJ | 26,777 | 54 | Detected |
| Cabot Waterworks | Cabot, AR | 26,770 | 29 | Clean |
| Mifflin Cnty Muni Auth | Milroy, PA | 26,765 | 416 | Clean |
| Hazard Water Department | Hazard, KY | 26,730 | 291 | Clean |
| Stevens Point Waterworks | Stevens Point, WI | 26,717 | 14 | Clean |
| Aqua NJ - Phillipsburg | Hamilton, NJ | 26,686 | 103 | Clean |
| University Water System | Iowa City, IA | 26,684 | 89 | Clean |
| Burlington Water Dept | Burlington, MA | 26,680 | 278 | Detected |
| Bear Creek W/A-West | Canton, MS | 26,677 | 427 | Clean |
| Greenfield Water Utility | Greenfield, IN | 26,671 | 5 | Clean |
| South Walton Utility Company | Miramar Beach, FL | 26,668 | 19 | Clean |
| Vega Baja Urbano | Vega Baja, PR | 26,660 | 647 | Detected |
| Greeneville Water Commission | Greeneville, TN | 26,657 | 10 | Clean |
| San Diego Mountain Lodge | San Diego, CA | 26,641 | 16 | - |
| Silverdale Water Dist 16 | Silverdale, WA | 26,634 | 99 | Clean |
| Wooster City PWS | Wooster, OH | 26,618 | 28 | Detected |
| Montebello Land & Water Co. | Montebello, CA | 26,554 | 9 | Detected |
| Galt, City Of | Galt, CA | 26,536 | 47 | - |
| Saratoga Springs City | Saratoga Springs, NY | 26,525 | 57 | Detected |
| East Wenatchee Water District | East Wenatchee, WA | 26,519 | 46 | Clean |
| Cws - Selma | San Jose, CA | 26,517 | 2 | Clean |
| Rosemount | Rosemount, MN | 26,500 | 15 | Detected |
| Mashantucket Pequot Water System | Mashantucket, 01 | 26,445 | 172 | Detected |