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 |
|---|---|---|---|---|
| Aceitunas | Santurce, PR | 8,961 | 279 | Clean |
| Town of Highland Park | Dallas, TX | 8,959 | 7 | Detected |
| Moncks Corner City of (Sc0810001) | Moncks Corner, SC | 8,956 | 4 | Detected |
| Glenwood | Glenwood, IL | 8,956 | 55 | Clean |
| Cannonsburg Water District | Ashland, KY | 8,953 | 85 | Detected |
| Olmito WSC | Olmito, TX | 8,952 | 156 | Detected |
| Toppenish Water Department | Toppenish, WA | 8,950 | 8 | Clean |
| Malta Water District #1 | Malta, NY | 8,950 | 278 | Clean |
| Wright State University | Dayton, OH | 8,948 | 47 | Clean |
| Sunbelt Fwsd High Meadows Subdivision | Houston, TX | 8,946 | 39 | Detected |
| Simpson County Water District | Bowling Green, KY | 8,946 | 35 | Detected |
| Riverdale City Water System | Riverdale, UT | 8,945 | 230 | Clean |
| Arcadia Water Dept, City Of | Arcadia, FL | 8,942 | 64 | Detected |
| Clinton City of (Sc3010002) | Clinton, SC | 8,938 | 36 | Detected |
| Ketchikan Public Utilities | Ketchikan, AK | 8,937 | 307 | Clean |
| Beech Island W/D (Sc0220004) | Beech Island, SC | 8,935 | 11 | Clean |
| Craig City Of | Craig, CO | 8,930 | 119 | Clean |
| Purcellville, Town Of | Purcellville, VA | 8,929 | 41 | Detected |
| Magoffin County Water District | Salyersville, KY | 8,925 | 91 | Clean |
| Gibsonville, Town Of | Gibsonville, NC | 8,920 | 154 | Detected |
| Chelford City MUD | Houston, TX | 8,917 | 17 | Clean |
| Mount Pleasant Water Sys #1 | Mount Pleasant, TN | 8,914 | 167 | Clean |
| Smith Utility District | Carthage, TN | 8,913 | 49 | Detected |
| Montpelier Water System | Montpelier, VT | 8,912 | 42 | Clean |
| Creedmoor Maha WSC | Buda, TX | 8,907 | 63 | Detected |
| Logan Co RWD #1 | Guthrie, OK | 8,907 | 316 | Detected |
| Monmouth | Monmouth, IL | 8,902 | 269 | Clean |
| Mason Creek Utility District | Katy, TX | 8,900 | 66 | Clean |
| Bacliff MUD | Bacliff, TX | 8,900 | 23 | Detected |
| Dansville Village | Dansville, NY | 8,900 | 31 | Clean |
| City of New Albany | New Albany, MS | 8,900 | 1,650 | Clean |
| Clear Water Service Corp | Mattoon, IL | 8,900 | 19 | Clean |
| Clear Creek Csd-Anderson | Anderson, CA | 8,900 | 7 | Clean |
| Guadalupe Water Department | Guadalupe, CA | 8,897 | 17 | Clean |
| Salinas Urbano | Salinas, PR | 8,894 | 396 | Detected |
| Guernsey Co. Water Dept. | Cambridge, OH | 8,891 | 25 | Detected |
| Farmville, Town Of | Farmville, NC | 8,887 | 76 | Detected |
| City of Youngsville Purchase WS | Youngsville, LA | 8,886 | 18 | Clean |
| Clinton | Clinton, OK | 8,883 | 446 | Clean |
| Luquillo Urbano | Luquillo, PR | 8,880 | 678 | Clean |
| Gatlinburg Water Dept | Gatlinburg, TN | 8,877 | 20 | Clean |
| Southern Monroe Water Authority | Harrodsburg, IN | 8,877 | 15 | Clean |
| Olney | Olney, IL | 8,877 | 17 | Clean |
| Park City Water System | Park City, UT | 8,875 | 62 | Detected |
| Clark County Northridge PWS | Springfield, OH | 8,874 | 14 | Clean |
| Price Municipal Corporation | Price, UT | 8,867 | 148 | Clean |
| City of Hillsboro | Hillsboro, TX | 8,867 | 51 | Detected |
| Scioto Water Inc.-Rose Hill | Franklin Furnace, OH | 8,861 | 116 | Clean |
| Cal Am - West Placer | Sacramento, CA | 8,861 | 0 | Clean |
| Brewer Water Department | Brewer, ME | 8,860 | 23 | Clean |