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 |
|---|---|---|---|---|
| Dixie Community Utility Assn. | Hattiesburg, MS | 5,840 | 784 | Clean |
| Red Rock Rural Water System | Jeffers, MN | 5,840 | 27 | Clean |
| Cambria Water District | Sanborn, NY | 5,839 | 5 | Clean |
| Charter Township of Alpena | Alpena, MI | 5,839 | 22 | Clean |
| Mount Zion | Mount Zion, IL | 5,833 | 159 | Detected |
| Charterwood MUD | Houston, TX | 5,832 | 1 | Detected |
| City of Carrizo Springs | Carrizo Springs, TX | 5,830 | 245 | Clean |
| Artondale | Tacoma, WA | 5,828 | 551 | Detected |
| Wallace, Town Of | Wallace, NC | 5,825 | 618 | Clean |
| Town of Florence | Florence, MS | 5,824 | 1,013 | Clean |
| Seven Lakes Water Association | Stanwood, WA | 5,823 | 58 | Clean |
| Maxwell Sud | Maxwell, TX | 5,823 | 170 | Detected |
| Walnut Ridge Waterworks | Walnut Ridge, AR | 5,823 | 29 | Clean |
| B H P WSC | Royse City, TX | 5,817 | 62 | Detected |
| Waterworks District 7 | Keithville, LA | 5,817 | 52 | Clean |
| Cashmere Water Department | Cashmere, WA | 5,815 | 12 | - |
| City of Yoakum | Yoakum, TX | 5,815 | 20 | Clean |
| Salamanca City | Salamanca, NY | 5,815 | 362 | Detected |
| Sims-Whitney Utilities Auth. | Tawas City, MI | 5,815 | 20 | Clean |
| Bluefield, Town Of | Bluefield, VA | 5,811 | 24 | Clean |
| City of Primera | Harlingen, TX | 5,811 | 49 | Detected |
| Sapulpa Rural Water Company | Sapulpa, OK | 5,810 | 55 | Clean |
| Pleasant Ridge W/A | Laurel, MS | 5,808 | 481 | Clean |
| City of Breckenridge | Breckenridge, TX | 5,807 | 91 | Detected |
| Snoqualmie Pass Utility District | Snoqualmie Pass, WA | 5,805 | 322 | Clean |
| Eastern Goochland Central Water System | Goochland, VA | 5,805 | 49 | - |
| Frisco West Wcid | Dallas, TX | 5,805 | 52 | Detected |
| Coraopolis Water & Sewer Auth | Coraopolis, PA | 5,804 | 97 | Detected |
| Pinckneyville | Pinckneyville, IL | 5,804 | 169 | Clean |
| Fayette WSC West | La Grange, TX | 5,802 | 125 | Clean |
| Hoopeston | Hoopeston, IL | 5,802 | 13 | Clean |
| Dauphin Island Water & Sewer | Dauphin Island, AL | 5,802 | 259 | Clean |
| Mt Union Municipal Auth | Mount Union, PA | 5,801 | 1,512 | Clean |
| Clark-Edgar RWD | Marshall, IL | 5,801 | 6 | Clean |
| Gwa Southern Water System | Mangilao, GU | 5,801 | 24 | Clean |
| Big Sioux Community Water System | Egan, SD | 5,800 | 6 | Clean |
| Hellertown Borough Authority | Hellertown, PA | 5,800 | 473 | Clean |
| New Carlisle City PWS | New Carlisle, OH | 5,800 | 31 | Detected |
| Arcadia-Lyons CSA | Lyons, NY | 5,800 | 1 | Clean |
| Swartz Creek, City Of | Swartz Creek, MI | 5,800 | 42 | Clean |
| Pana | Pana, IL | 5,800 | 320 | Detected |
| West Point | West Point, GA | 5,800 | 28 | Detected |
| Beaver Boro Muni Auth | Beaver, PA | 5,799 | 617 | Detected |
| White Lake Township | White Lake, MI | 5,799 | 39 | Detected |
| Richmond PWS | Richmond, MO | 5,797 | 38 | Clean |
| Germantown City PWS | Germantown, OH | 5,796 | 371 | Clean |
| Rupert City Of | Rupert, ID | 5,796 | 156 | Clean |
| High Springs WTP | High Springs, FL | 5,795 | 97 | Detected |
| Williamson Travis County MUD 1 | Cedar Park, TX | 5,793 | 28 | Clean |
| Union WSC | Garciasville, TX | 5,793 | 64 | Detected |