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 |
|---|---|---|---|---|
| Buhl City Of | Buhl, ID | 4,518 | 117 | Clean |
| Butler | Butler, GA | 4,518 | 40 | - |
| Carolina Trace Water System | Charlotte, NC | 4,516 | 23 | Detected |
| Fremont | Fremont, MI | 4,516 | 16 | Detected |
| Bremen Water Department | Bremen, IN | 4,516 | 60 | Clean |
| City of Mineola | Mineola, TX | 4,515 | 1 | Clean |
| Gtnp-Colter Bay Village | Moose, WY | 4,514 | 3 | Clean |
| Buffalo Trail Water Assoc | Mayslick, KY | 4,514 | 81 | Detected |
| Dardanelle Waterworks | Dardanelle, AR | 4,514 | 40 | Detected |
| Pfeiffer-N Stanly Water Assoc | Richfield, NC | 4,513 | 40 | Detected |
| Tiffin Water Supply | Tiffin, IA | 4,512 | 40 | - |
| Ranlo, Town Of | Gastonia, NC | 4,511 | 107 | Clean |
| Cottonwood Municipal Water Vv6 | Cottonwood, AZ | 4,509 | 590 | Clean |
| Harris County MUD 284 | Houston, TX | 4,506 | 5 | - |
| Golden State Water Company - Nipomo | Rancho Cordova, CA | 4,506 | 0 | Detected |
| City of Dilley | Dilley, TX | 4,505 | 51 | Clean |
| Bethany Sud | Alvarado, TX | 4,503 | 46 | Detected |
| Monticello, City Of | Monticello, FL | 4,502 | 40 | Clean |
| Tulia Municipal Water System | Tulia, TX | 4,501 | 76 | Clean |
| South Highway Pwd | Makanda, IL | 4,501 | 38 | Clean |
| La Verkin City Water System | La Verkin, UT | 4,500 | 48 | Clean |
| City of Bullard | Bullard, TX | 4,500 | 108 | Clean |
| Black Hawk Water User District | Black Hawk, SD | 4,500 | 124 | Clean |
| Seneca & Cranberry Mall Dist | Seneca, PA | 4,500 | 106 | Clean |
| New Wilmington Boro Water Dept | New Wilmington, PA | 4,500 | 20 | Clean |
| Fairview Twp Water District 1 | Fairview, PA | 4,500 | 90 | Clean |
| Pike Twp Municipal Authority | Curwensville, PA | 4,500 | 551 | Clean |
| Upmc Montefiore | Pittsburgh, PA | 4,500 | 36 | Clean |
| Northern Cambria Muni Water | Northern Cambria, PA | 4,500 | 370 | Clean |
| Bear Creek Mountain Resort | Macungie, PA | 4,500 | 81 | - |
| Chenowith PUD | The Dalles, OR | 4,500 | 122 | Clean |
| Raleigh Water District | Portland, OR | 4,500 | 29 | Clean |
| Tuttle | Tuttle, OK | 4,500 | 288 | Detected |
| Kingsbury WD (Queensbury) | Hudson Falls, NY | 4,500 | 20 | Clean |
| Port Ewen Water District | Port Ewen, NY | 4,500 | 68 | Clean |
| Ocean Beach Water District | Ocean Beach, NY | 4,500 | 226 | Clean |
| Broome County Fairgrounds | Whitney Point, NY | 4,500 | 0 | - |
| Ravena Village | Ravena, NY | 4,500 | 15 | Detected |
| Menands Village | Village of Menands, NY | 4,500 | 20 | Clean |
| Gardnerville Water Company | Gardnerville, NV | 4,500 | 42 | Detected |
| El Rancho de los Golondrinas | Santa Fe, NM | 4,500 | 7 | - |
| Jefferson Twp W U Milton Sys | Lake Hopatcong, NJ | 4,500 | 390 | Detected |
| Peterborough Water Works | Peterborough, NH | 4,500 | 123 | Clean |
| Wahoo, City Of | Wahoo, NE | 4,500 | 53 | Clean |
| Clarkdale Water Assn # 1 | Meridian, MS | 4,500 | 939 | Clean |
| Moscow Mills PWS | Moscow Mills, MO | 4,500 | 37 | - |
| Lamar PWS | Lamar, MO | 4,500 | 182 | Detected |
| North Kansas City PWS | North Kansas City, MO | 4,500 | 7 | Detected |
| Hancock | Hancock, MI | 4,500 | 21 | Clean |
| Dexter | Dexter, MI | 4,500 | 93 | Clean |