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 |
|---|---|---|---|---|
| Lake Bluff | Lake Bluff, IL | 5,600 | 49 | Clean |
| Camp Fresno Water System | Fresno, CA | 5,600 | 59 | - |
| Hamburg Waterworks | Hamburg, AR | 5,600 | 33 | Clean |
| Moxee Water Department | Moxee, WA | 5,599 | 89 | Clean |
| Marshall Co Water Assn | Byhalia, MS | 5,599 | 268 | Clean |
| Pendleton Town of (Sc0410006) | Pendleton, SC | 5,597 | 3 | Detected |
| Miraflores | Arecibo, PR | 5,596 | 80 | - |
| Red Oak Water Supply | Red Oak, IA | 5,596 | 369 | Clean |
| Tdcj Chase Field | Huntsville, TX | 5,595 | 63 | Clean |
| Summertown Utility District | Summertown, TN | 5,593 | 62 | Clean |
| Lincoln Water Dept | Lincoln, MA | 5,593 | 90 | Detected |
| Hanapepe-Eleele | Lihue, HI | 5,592 | 11 | Clean |
| Bear Valley Csd | Tehachapi, CA | 5,592 | 25 | Detected |
| Gw Farmers Water Co - Continental | Maricopa, AZ | 5,592 | 159 | Clean |
| Preston City Of | Preston, ID | 5,591 | 149 | Clean |
| Snowflake Town Of | Snowflake, AZ | 5,590 | 144 | Clean |
| Watson Chapel Water Assoc | Pine Bluff, AR | 5,590 | 6 | Clean |
| Milton Waterworks | Milton, WI | 5,588 | 86 | Clean |
| Cleveland Waterworks | Cleveland, GA | 5,587 | 13 | Detected |
| Archbold Village | Archbold, OH | 5,586 | 98 | Clean |
| City of Eupora | Eupora, MS | 5,586 | 1,075 | Clean |
| Creswell, City Of | Creswell, OR | 5,585 | 123 | Clean |
| Hamilton City Of | Hamilton, MT | 5,585 | 18 | Detected |
| Selinsgrove Muni Auth | Selinsgrove, PA | 5,584 | 364 | Clean |
| Mahanoy Twp Auth | Mahanoy City, PA | 5,584 | 129 | Clean |
| Lake Alfred, City Of | Lake Alfred, FL | 5,584 | 51 | Detected |
| Harris County MUD 239 | Houston, TX | 5,583 | 9 | Clean |
| PA Am Water Co-Frackville Dist | Milton, PA | 5,583 | 8 | Detected |
| Spring Valley | Spring Valley, IL | 5,582 | 127 | Clean |
| City of Hallsville | Hallsville, TX | 5,580 | 42 | Detected |
| Hilldale Water District | Vicksburg, MS | 5,578 | 538 | Clean |
| Craft Turney WSC Main | Jacksonville, TX | 5,577 | 23 | Clean |
| Laie Water Company | Laie, HI | 5,577 | 32 | Clean |
| Summersville Municipal Water | Summersville, WV | 5,574 | 66 | Clean |
| Wbr District 4 -Section Road Winterville | Port Allen, LA | 5,571 | 14 | Clean |
| Anson and Madison Water District | Richmond, ME | 5,568 | 301 | Clean |
| Castlewood - Rcpsa | Lebanon, VA | 5,565 | 175 | Detected |
| Duquesne Water Dept | Duquesne, PA | 5,565 | 136 | Clean |
| Millstone Pwd | Nashville, IL | 5,565 | 62 | Clean |
| Napoleon Community Rural Water Corp. | Napoleon, IN | 5,564 | 38 | Detected |
| Town of Anthony | Anthony, TX | 5,555 | 123 | Detected |
| Holdrege, City Of | Holdrege, NE | 5,555 | 42 | Clean |
| Tripler Army Medical Cntr | Schofield Barracks, HI | 5,555 | 24 | Clean |
| Williamsburg Water Department | Williamsburg, KY | 5,554 | 90 | Clean |
| Fairchild Air Force Base | Fairchild AFB, WA | 5,553 | 10 | Detected |
| Fort Bend County MUD 162 | Houston, TX | 5,553 | 73 | - |
| Cdcr California Health Care Facility | Stockton, CA | 5,551 | 6 | - |
| Stutsman Rural Water District | Jamestown, ND | 5,550 | 8 | Clean |
| Municipal Services Commission | New Castle, DE | 5,549 | 5 | Detected |
| Monticello | Monticello, IL | 5,548 | 11 | Clean |