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 |
|---|---|---|---|---|
| Raeford, City Of | Raeford, NC | 6,718 | 148 | Clean |
| Watertown Fire District | Watertown, CT | 6,718 | 178 | Clean |
| Mills Road MUD | Houston, TX | 6,717 | 0 | Detected |
| North Park PUD | Houston, TX | 6,708 | 40 | Clean |
| Dowdell PUD | Houston, TX | 6,705 | 2 | Clean |
| Logan, City Of | Logan, OH | 6,704 | 59 | Clean |
| Vine Grove Water Department | Vine Grove, KY | 6,703 | 58 | Clean |
| Veolia Water NJ Allendale Water System | Haworth, NJ | 6,702 | 330 | Detected |
| Lake Hallie Waterworks Village Of | Lake Hallie, WI | 6,701 | 61 | Clean |
| Manheim Area Water & Sewer Aut | Manheim, PA | 6,701 | 194 | Detected |
| VA Pittsburgh Ud | Pittsburgh, PA | 6,701 | 10 | Clean |
| Kline Township Mun Authority | McAdoo, PA | 6,700 | 242 | Clean |
| Milford City PWS | Milford, OH | 6,700 | 628 | Detected |
| Bayville (V) | Bayville, NY | 6,700 | 76 | Clean |
| Plymouth Vlg Water and Sewer | Plymouth, NH | 6,700 | 82 | Clean |
| Jordan | Jordan, MN | 6,700 | 28 | Clean |
| Carver | Carver, MN | 6,700 | 12 | Clean |
| Emmett City Of | Emmett, ID | 6,700 | 290 | Clean |
| Carbondale Town Of | Carbondale, CO | 6,700 | 105 | Clean |
| Weston MUD | Houston, TX | 6,699 | 2 | Clean |
| Seaford Water Department | Seaford, DE | 6,699 | 23 | Detected |
| Prairie Island | Welch, 05 | 6,699 | 188 | Clean |
| Upper Sandusky City | Upper Sandusky, OH | 6,698 | 71 | Clean |
| West Harris County MUD 10 | Houston, TX | 6,697 | 13 | Clean |
| Williamston Town of (0410010) | Williamston, SC | 6,693 | 43 | Detected |
| Purcell | Purcell, OK | 6,693 | 74 | Clean |
| Washington County Water System | Plymouth, NC | 6,693 | 39 | Clean |
| City of Wilmer | Wilmer, TX | 6,690 | 186 | Detected |
| Stark County Water District | Canton, OH | 6,690 | 14 | Clean |
| Tunica County Utility District | Tunica, MS | 6,690 | 1,250 | Clean |
| Southwest Jones W/A-North | Moselle, MS | 6,690 | 909 | Clean |
| Lincoln Waterworks | Lincoln, AR | 6,690 | 57 | Clean |
| City of Hempstead | Hempstead, TX | 6,687 | 118 | Clean |
| I-71 and SR-35 PWS | Washington Court House, OH | 6,685 | 193 | Clean |
| Avra Water Coop Inc | Tucson, AZ | 6,685 | 143 | Clean |
| Four Way Sud | Huntington, TX | 6,684 | 11 | Detected |
| Plattsmouth, City Of | Plattsmouth, NE | 6,680 | 3 | Detected |
| Clinton Waterworks | Clinton, AR | 6,680 | 56 | Clean |
| Harris County MUD 118 | Houston, TX | 6,678 | 2 | Clean |
| Monroe County PWSD 2 | Laddonia, MO | 6,677 | 41 | Detected |
| Van Buren Water, Inc. | Bloomington, IN | 6,670 | 34 | Clean |
| Harmony Boro Water Auth | Harmony, PA | 6,669 | 422 | Detected |
| Gonzalez Utilities Association, Inc. | Cantonment, FL | 6,668 | 6 | Detected |
| Raleigh County Psd Arnett | Sophia, WV | 6,663 | 68 | Clean |
| Grand Mission MUD 1 | Houston, TX | 6,663 | 6 | Detected |
| Leading Creek Conservancy District | Rutland, OH | 6,663 | 65 | Detected |
| Combined Utilities | Lucedale, MS | 6,658 | 783 | Clean |
| Pontchatoula Water System | Ponchatoula, LA | 6,657 | 38 | Clean |
| East Iberville Water System | Plaquemine, LA | 6,657 | 21 | Clean |
| Ontario City | Ontario, OH | 6,656 | 67 | Clean |