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 |
|---|---|---|---|---|
| Wayne, City Of | Wayne, NE | 5,990 | 74 | Clean |
| San Joaquin County - Lincoln Village | Stockton, CA | 5,990 | 5 | Clean |
| Brentwood-Jamestown Road | Glen Alpine, NC | 5,988 | 12 | Clean |
| City of Edna | Edna, TX | 5,987 | 18 | Clean |
| Fort Bend County MUD 146 | Houston, TX | 5,985 | 1 | Detected |
| Centreville Water & Sewer | Centreville, AL | 5,985 | 58 | Clean |
| North Stewart Utility District | Dover, TN | 5,983 | 143 | Detected |
| Harris County MUD 16 | Houston, TX | 5,982 | 7 | Detected |
| Florida State Prison | Tallahassee, FL | 5,980 | 75 | Clean |
| Lincoln County Water System | Lincolnton, GA | 5,979 | 44 | Detected |
| Malaga County Water District | Fresno, CA | 5,979 | 36 | Clean |
| City of Gretna - Sapp Bros | Gretna, NE | 5,975 | 61 | Clean |
| Crystal Springs Water District | Odell, OR | 5,973 | 79 | Clean |
| Sewanee Utility District | Sewannee, TN | 5,970 | 30 | Clean |
| Adel | Adel, GA | 5,970 | 11 | Clean |
| Tulalip Bay Water Dist #1 | Tulalip, 10 | 5,968 | 248 | Clean |
| Harris County MUD 457 | Houston, TX | 5,967 | 0 | - |
| City of Marlin | Marlin, TX | 5,967 | 464 | Detected |
| Lincoln County Rural Water System | Sioux Falls, SD | 5,965 | 6 | Detected |
| Indian Hills Gid | Carson City, NV | 5,962 | 71 | Detected |
| Covington, City Of | Covington, VA | 5,961 | 175 | Clean |
| West Harris County MUD 9 | Houston, TX | 5,961 | 30 | Clean |
| Crystal Springs Water Service | Crystal Springs, MS | 5,961 | 195 | Clean |
| Poarch Creek Utilities - West | Atmore, 04 | 5,961 | 6 | Clean |
| Katy Isd Mayde Creek School Complex | Katy, TX | 5,960 | 15 | Clean |
| Ash Township | Carleton, MI | 5,959 | 5 | Clean |
| Woodstock, Town Of | Woodstock, VA | 5,955 | 113 | Clean |
| Ingram Water Supply | Austin, TX | 5,955 | 9 | Clean |
| Whiteland Water Works | Whiteland, IN | 5,955 | 56 | Detected |
| East End Water | Little Rock, AR | 5,954 | 17 | Clean |
| Beardstown | Beardstown, IL | 5,951 | 52 | Clean |
| Montgomery County MUD 9 | Houston, TX | 5,949 | 21 | Clean |
| City of Pearland MUD 1 | Pearland, TX | 5,947 | 36 | Clean |
| Granville, Village Of | Granville, OH | 5,946 | 7 | Clean |
| City of Wake Village | Wake Village, TX | 5,945 | 38 | Clean |
| Mystic Harbour | Berlin, MD | 5,945 | 26 | Clean |
| South Toledo Bend Water District | Many, LA | 5,943 | 200 | Detected |
| Asbury Municipal Water System | Asbury, IA | 5,943 | 0 | Clean |
| Harris County MUD 43 | Houston, TX | 5,940 | 10 | Clean |
| Prestonwood Forest Utility District | Houston, TX | 5,940 | 2 | Detected |
| Webster Co Water District | Dixon, KY | 5,940 | 199 | Clean |
| Science Hill Water Works | Science Hill, KY | 5,940 | 105 | Clean |
| Kirksville Water Association | Richmond, KY | 5,940 | 33 | Detected |
| Valley Utilities Water Company Glendale | Glendale, AZ | 5,940 | 72 | Detected |
| Seabrook Island Town of (1010009) | Johns Island, SC | 5,939 | 19 | Detected |
| Carroll Co Water District #1 | Ghent, KY | 5,934 | 50 | Clean |
| City of Bridgeport | Bridgeport, TX | 5,930 | 197 | Detected |
| Allegan | Allegan, MI | 5,930 | 18 | Clean |
| Konocti County Water District | Clearlake, CA | 5,928 | 3 | Detected |
| Ynp - Lake Village | Yellowstone, WY | 5,925 | 41 | - |