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 |
|---|---|---|---|---|
| Town of Berlin | Berlin, MD | 4,500 | 158 | Detected |
| Town of Delmar | Delmar, MD | 4,500 | 3 | Clean |
| Town of Denton | Denton, MD | 4,500 | 9 | Clean |
| Plainfield Re-Entry Educational Facility | Plainfield, IN | 4,500 | 42 | Detected |
| Oglesby | Oglesby, IL | 4,500 | 206 | Clean |
| Paxton | Paxton, IL | 4,500 | 7 | Clean |
| DOT-Rest Area/Welcome Ctr. 112 | Jesup, GA | 4,500 | 74 | - |
| Wahneta Water System | Eagle Lake, FL | 4,500 | 26 | Clean |
| Menoken WD | Montrose, CO | 4,500 | 0 | Clean |
| Peppery Bar and Grill, The | Sonora, CA | 4,500 | 4 | - |
| Adoc Tucson | Tucson, AZ | 4,500 | 567 | Clean |
| Phoenix International Raceway | Avondale, AZ | 4,500 | 66 | Detected |
| Prescott Waterworks | Prescott, AR | 4,500 | 72 | Clean |
| Greensboro, Utilities Bd of the City Of | Greensboro, AL | 4,500 | 96 | Clean |
| Valdez Water System - Main | Valdez, AK | 4,500 | 166 | Clean |
| Laguna Valley | Laguna, 06 | 4,500 | 73 | Clean |
| Murphy, Town Of | Murphy, NC | 4,498 | 167 | Clean |
| South Shore Water Assn., Inc. | Clewiston, FL | 4,498 | 36 | Clean |
| Milford Twp Water Authority | Spinnerstown, PA | 4,497 | 161 | Detected |
| Blacksburg Town of (Sc1110002) | Blacksburg, SC | 4,496 | 42 | Detected |
| Frisco Town Of | Frisco, CO | 4,495 | 820 | Clean |
| Ray Water Company Inc | Tucson, AZ | 4,495 | 151 | Clean |
| Northstar Csd - Martis Valley | Truckee, CA | 4,493 | 0 | - |
| West Jefferson Village PWS | West Jefferson, OH | 4,488 | 29 | Clean |
| Eunice Water Supply System | Eunice, NM | 4,487 | 63 | Clean |
| Amgen Manufacturing, Ltd | Juncos, PR | 4,485 | 2 | - |
| Csu Foothills Campus | Fort Collins, CO | 4,483 | 19 | Detected |
| Gbra Calhoun County Rural Water System | Cypress, TX | 4,482 | 67 | Detected |
| Royal Waterworks, Inc | New Port Richey, FL | 4,481 | 123 | Detected |
| Smiths Crossing Water Assn | Magee, MS | 4,480 | 1,323 | Detected |
| Edinburgh Water Utility | Edinburgh, IN | 4,480 | 15 | Clean |
| Roxbury Twp W Dept-Sky V | Landing, NJ | 4,478 | 98 | Detected |
| Glendale Utility District | Hattiesburg, MS | 4,477 | 736 | Clean |
| Dyersville Municipal Water Co | Dyersville, IA | 4,477 | 268 | Clean |
| Falfurrias Utility Board | Falfurrias, TX | 4,473 | 154 | Clean |
| Northwest Harris County MUD 23 | Houston, TX | 4,470 | 21 | Clean |
| Mid-Ohio WSD Plain City WTP | Columbus, OH | 4,467 | 174 | Clean |
| Munford Water Authority, Inc. | Munford, AL | 4,467 | 83 | Clean |
| Renn Road MUD | Houston, TX | 4,464 | 10 | Clean |
| New Freedom Boro Water Auth | New Freedom, PA | 4,464 | 143 | Detected |
| Harris County MUD 365 | Houston, TX | 4,461 | 6 | Clean |
| Harris County MUD 69 | Houston, TX | 4,458 | 1 | Clean |
| Lyons | Lyons, GA | 4,458 | 55 | Clean |
| Anamosa Municipal Water Supply | Anamosa, IA | 4,457 | 137 | Clean |
| Mauston Waterworks | Mauston, WI | 4,456 | 17 | Clean |
| Woodstown Water Department | Woodstown, NJ | 4,455 | 206 | Clean |
| Blackshear | Blackshear, GA | 4,455 | 34 | Clean |
| St. Joseph's Hospital | Tampa, FL | 4,454 | 4 | - |
| Harris County MUD 370 | Houston, TX | 4,452 | 14 | Detected |
| Beaufort, Town Of | Beaufort, NC | 4,452 | 58 | Clean |