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 |
|---|---|---|---|---|
| Louisville | Louisville, GA | 5,242 | 44 | Clean |
| Goodfellow Air Force Base | Goodfellow Afb, TX | 5,241 | 62 | Detected |
| Montgomery County MUD 36 | The Woodlands, TX | 5,235 | 16 | Clean |
| Apalachicola, City Of | Apalachicola, FL | 5,235 | 413 | Clean |
| Flora | Flora, IL | 5,233 | 49 | Clean |
| Perry Water & Light Dept | Perry, OK | 5,230 | 1,469 | Detected |
| Brazoria County MUD 55 | Houston, TX | 5,229 | 4 | - |
| Alta Town Water System | Alta, UT | 5,228 | 140 | Clean |
| Northern Ohio Rural Water-South District | Norwalk, OH | 5,226 | 30 | Detected |
| IL American-Fernway | Godfrey, IL | 5,223 | 27 | Clean |
| Seminole Utilities Immokalee | Hollywood, 04 | 5,221 | 5 | - |
| Ozello Water Association | Crystal River, FL | 5,220 | 22 | Clean |
| Blackland WSC | Fate, TX | 5,217 | 48 | Detected |
| Harris County MUD 400 - West | Houston, TX | 5,217 | 2 | Clean |
| Monitor Township | Bay City, MI | 5,217 | 0 | Clean |
| Eureka | Eureka, IL | 5,216 | 131 | Clean |
| Valley Auto Water | Anza, CA | 5,215 | 3 | - |
| North White Co Rural Water Pfb | Judsonia, AR | 5,215 | 59 | Clean |
| Berkeley | Berkeley, IL | 5,214 | 50 | Clean |
| Point Evans | Tacoma, WA | 5,211 | 411 | Clean |
| Fort Bend County MUD 194 | Houston, TX | 5,211 | 15 | - |
| City of Diboll | Diboll, TX | 5,210 | 77 | Clean |
| Alva | Alva, OK | 5,208 | 74 | Clean |
| Burke Co. Water-South | Hildebran, NC | 5,207 | 12 | - |
| Stewartstown Boro Water Auth | Stewartstown, PA | 5,206 | 575 | Detected |
| East Leflore Water & Sewer Dst | Greenwood, MS | 5,206 | 805 | Clean |
| Town of Greenwood Water System | Greenwood, LA | 5,205 | 79 | Detected |
| Odessa PWS | Odessa, MO | 5,202 | 108 | Clean |
| Hyde Park City Water System | Franklin, UT | 5,200 | 91 | Clean |
| Donalds-Due West W&sa (Sc0120001) | Donalds, SC | 5,200 | 27 | Detected |
| Rockview Sci | Bellefonte, PA | 5,200 | 584 | Detected |
| Schwenksville Borough Auth | Schwenksville, PA | 5,200 | 158 | Detected |
| Veneta, City Of | Veneta, OR | 5,200 | 38 | Clean |
| Whitehouse Village | Whitehouse, OH | 5,200 | 52 | Detected |
| Johnstown City PWS | Johnstown, OH | 5,200 | 103 | Clean |
| Mechanicville City | Mechanicville, NY | 5,200 | 162 | Clean |
| Pembroke Water Works | Pembroke, NH | 5,200 | 146 | Detected |
| Saint Francis | St. Francis, MN | 5,200 | 15 | Clean |
| St. Tammany Water District #2 | Covington, LA | 5,200 | 36 | Clean |
| Tipton Utility Service B | Tipton, IN | 5,200 | 24 | Clean |
| Redwood Valley County Water District | Ukiah, CA | 5,200 | 12 | Clean |
| Cherokee Water Supply - Plant 1 | Cherokee, IA | 5,199 | 3 | Clean |
| South Logan Water Association | Adairville, KY | 5,198 | 65 | Clean |
| Fort Bend County MUD 143 Water View Esta | Houston, TX | 5,196 | 2 | Detected |
| Southwest Alabama Water Authority | Peterman, AL | 5,196 | 55 | Clean |
| Pinon-District 4 NTUA | Ft Defiance, NN | 5,195 | 59 | Clean |
| St Robert PWS | Saint Robert, MO | 5,192 | 123 | Detected |
| North Mohave Valley | Bullhead City, AZ | 5,190 | 144 | Detected |
| West Stone County Water Assn | Fox, AR | 5,188 | 27 | Detected |
| Cinco Southwest MUD 3 Daycare | Houston, TX | 5,187 | 0 | Detected |