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 |
|---|---|---|---|---|
| Pittsboro Water Company | Brownsburg, IN | 4,113 | 34 | Detected |
| Tangipahoa (Second Ward) Water District | Hammond, LA | 4,112 | 29 | Clean |
| Brookfield PWS | Brookfield, MO | 4,111 | 85 | Detected |
| Clifton Water Dept | Clifton, TN | 4,110 | 303 | Detected |
| Tyson Fresh Meats, Inc - Dakota City | Dakota City, NE | 4,110 | 5 | Clean |
| Algonac, City Of | Algonac, MI | 4,110 | 134 | Clean |
| Keowee Key Utility System Inc (3750023) | Salem, SC | 4,108 | 15 | Clean |
| Morenci Water Elec Co Main | Phoenix, AZ | 4,108 | 241 | Detected |
| Polacca | Polacca, 09 | 4,108 | 473 | Clean |
| Harleton WSC | Harleton, TX | 4,107 | 106 | Detected |
| Hamilton Village | Hamilton, NY | 4,107 | 43 | Clean |
| Ashville Water and Sewer | Ashville, AL | 4,107 | 36 | Clean |
| Kelseyville Co Waterworks District 3 | Lakeport, CA | 4,102 | 0 | Clean |
| Highland Falls Village | Highland Falls, NY | 4,101 | 31 | Clean |
| Fishkill Village | Fishkill, NY | 4,101 | 117 | Clean |
| Town of Vinton Water System | Vinton, LA | 4,101 | 16 | Clean |
| Stevenson, Util. Board of the Town Of | Stevenson, AL | 4,101 | 164 | Detected |
| Cross Plains Waterworks | Cross Plains, WI | 4,100 | 18 | Clean |
| Nps-Mount Rushmore National Memorial | Keystone, SD | 4,100 | 68 | Detected |
| Mansfield Borough Mun Auth | Mansfield, PA | 4,100 | 673 | Clean |
| Waynesville Village PWS | Waynesville, OH | 4,100 | 41 | Clean |
| Captree State Park | Babylon, NY | 4,100 | 9 | - |
| City of Pocomoke City | Pocomoke City, MD | 4,100 | 38 | Clean |
| Town of Indian Head | Indian Head, MD | 4,100 | 22 | Clean |
| Woodhaven | Sublette, IL | 4,100 | 76 | Clean |
| Battlement Mesa MD | Administrative Contact, CO | 4,100 | 333 | Clean |
| Atascadero State Hospital | Atascadero, CA | 4,100 | 6 | Detected |
| Centinela State Prison | Imperial, CA | 4,100 | 57 | Clean |
| Grand Water and Sewer Agency | Moab, UT | 4,099 | 310 | Clean |
| Harris-Waller Counties MUD 5 | Houston, TX | 4,098 | 0 | - |
| Champions MUD | Houston, TX | 4,098 | 38 | Detected |
| Barre Water Department | Barre, MA | 4,098 | 217 | Clean |
| Alma | Alma, GA | 4,096 | 22 | Clean |
| Martin Springs WSC | Como, TX | 4,095 | 33 | Clean |
| Princes Lake Water Department | Nineveh, IN | 4,095 | 111 | Clean |
| Myrtlewood Water System | Mytrlewood, AL | 4,095 | 11 | Clean |
| Chuckawalla Valley State Prison | Blythe, CA | 4,090 | 24 | Clean |
| Nicholas Co Water District | Calisle, KY | 4,089 | 240 | Detected |
| Harris County MUD 18 Heatherwood Hunters | Houston, TX | 4,083 | 11 | Detected |
| Kentuckytown WSC | Whitewright, TX | 4,083 | 10 | - |
| South Vernon Parish Waterworks District | Rosepine, LA | 4,083 | 19 | Clean |
| Dora Utilities | Dora, AL | 4,083 | 116 | Clean |
| Vc/Southeast Volusia Interconnected-Ws#7 | Deland, FL | 4,082 | 4 | Clean |
| Wesley Chapel Water System | Ruston, LA | 4,080 | 9 | Clean |
| Sirwa #3 (Osceola) | Creston, IA | 4,080 | 36 | Detected |
| Grand Summit Hotel | West Dover, VT | 4,078 | 364 | - |
| White Salmon City Of | White Salmon, WA | 4,077 | 95 | Clean |
| Coupeville Town Of | Coupeville, WA | 4,077 | 104 | Detected |
| City of Cisco | TX | 4,076 | 375 | Detected |
| Wrightsville Boro Muni Auth | Wrightsville, PA | 4,076 | 194 | Clean |