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 |
|---|---|---|---|---|
| Shelley City Of | Shelley, ID | 4,409 | 33 | Detected |
| Coosa Water Authority | Blairsville, GA | 4,407 | 43 | Clean |
| Pearl River Central W/a-Bi Co | McNeill, MS | 4,406 | 432 | Clean |
| Ligonier Water Works | Ligonier, IN | 4,405 | 127 | Clean |
| Abraham Baldwin Agri. College | Tifton, GA | 4,405 | 100 | Clean |
| Harris County MUD 172 | Houston, TX | 4,404 | 11 | Detected |
| Moundville (City Of) | Moundville, AL | 4,404 | 11 | Clean |
| Isleta Shea-whiff | Isleta, 06 | 4,403 | 25 | Clean |
| Hillsboro | Hillsboro, IL | 4,402 | 111 | Clean |
| Franklin System York Water | York, PA | 4,400 | 442 | Clean |
| Southwestern Cambria Cnty Auth | Johnstown, PA | 4,400 | 111 | Clean |
| Douglas Water Department | Douglas, MA | 4,400 | 64 | Clean |
| Dwight | Dwight, IL | 4,400 | 40 | Clean |
| Glendale City Of | Glendale, CO | 4,400 | 3 | - |
| Bennett Town Of | Bennett, CO | 4,400 | 62 | - |
| Chemehuevi Water | Havasu Lake, 09 | 4,400 | 65 | - |
| Spirit Lake Water Management RWS | St. Michael, 08 | 4,400 | 53 | Clean |
| Bethel Water System | Wilsonville, AL | 4,398 | 9 | Clean |
| City of Jacksboro | Jacksboro, TX | 4,397 | 130 | Detected |
| Fort Bend County MUD 42 Wat Plat | Houston, TX | 4,395 | 6 | Clean |
| Bryson City, Town Of | Bryson City, NC | 4,395 | 188 | Clean |
| Ireland Utilities, Inc. | Ireland, IN | 4,395 | 9 | Detected |
| Sparta | Sparta, IL | 4,395 | 189 | Clean |
| Dimmitt Municipal Water System | Dimmitt, TX | 4,393 | 10 | Clean |
| Arizona Water Co - Superior | Phoenix, AZ | 4,393 | 158 | Clean |
| Hannahville Community | Wilson, 05 | 4,391 | 8 | Clean |
| Wood Village, City Of | Wood Village, OR | 4,388 | 126 | Clean |
| Russell, City Of | Russell, KS | 4,388 | 184 | Clean |
| Berne Water Department | Berne, IN | 4,388 | 16 | Clean |
| Rio del Oro Water System | Elephant Butte, NM | 4,387 | 17 | - |
| Honea Path Town of (Sc0410003) | Honea Path, SC | 4,386 | 5 | Detected |
| Mossy Head Water Works, Inc. | Defuniak Springs, FL | 4,386 | 23 | Clean |
| Fayette Co. Water Coord. & F. P. A. | Fayette, AL | 4,386 | 0 | Clean |
| Atlantic Highlands Water | Atlantic Highlands, NJ | 4,385 | 128 | Clean |
| Brockway Boro Municipal Auth | Brockway, PA | 4,384 | 1,059 | Clean |
| Hill County WSC | Whitney, TX | 4,383 | 43 | Detected |
| Lakeview-Midway Public Water Authority | Lakeview, AR | 4,383 | 20 | Detected |
| Tyngsborough Water District | Tyngsborough, MA | 4,382 | 26 | Detected |
| Calvert City Municipal Water Department | Calvert City, KY | 4,381 | 60 | Clean |
| Chariton Municipal Water Works | Chariton, IA | 4,381 | 590 | Detected |
| Kings Manor MUD | Houston, TX | 4,377 | 0 | Clean |
| Jackson Co RWD 3 | Holton, KS | 4,376 | 60 | Clean |
| Copeville Sud | Copeville, TX | 4,375 | 23 | Detected |
| Sayre | Sayre, OK | 4,375 | 71 | Clean |
| Great Barrington Fire Dist | Great Barrington, MA | 4,375 | 219 | Clean |
| Department of Transportation | Stockton, CA | 4,375 | 17 | - |
| Clarinda Water Plant | Clarinda, IA | 4,372 | 97 | Detected |
| Prince Frederick | Prince Frederick, MD | 4,371 | 15 | Clean |
| Homer Village-Newton Water Works | Homer, NY | 4,368 | 410 | Clean |
| Ozark Waterworks | Ozark, AR | 4,368 | 57 | Clean |