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 |
|---|---|---|---|---|
| The Consolidated WSC Rural System | Crockett, TX | 10,689 | 28 | Clean |
| Oneida W&S Comm | Oneida, TN | 10,688 | 144 | Clean |
| Table Mountain Rancheria | Friant, 09 | 10,675 | 144 | Clean |
| North Collin Sud | Melissa, TX | 10,674 | 34 | Detected |
| California Institution for Men | Chino, CA | 10,667 | 35 | Clean |
| City of Bellmead | Bellmead, TX | 10,664 | 51 | Clean |
| Satilla Regional Water & Sewer Auth. | Waycross, GA | 10,657 | 16 | Clean |
| City of Shasta Lake | Shasta Lake, CA | 10,657 | 3 | Clean |
| Port Huron Township | Port Huron, MI | 10,654 | 19 | Clean |
| Pasquotank County Water System | Elizabeth City, NC | 10,653 | 7 | Clean |
| Highland | Highland, IL | 10,649 | 66 | Detected |
| Lake Jackson Area Water System | Quincy, FL | 10,643 | 46 | Clean |
| Woodland City Of | Woodland, WA | 10,640 | 518 | Detected |
| Wakulla Regional (Aka Gulf Coast) | Quincy, FL | 10,637 | 168 | Clean |
| Hamlet Water System | Hamlet, NC | 10,635 | 166 | Detected |
| Fort Bend County MUD 58 | Houston, TX | 10,629 | 0 | Detected |
| Pointe Coupee Water Works District 1 | New Roads, LA | 10,629 | 27 | Detected |
| California Water Service Co. - Dixon | San Jose, CA | 10,623 | 3 | Clean |
| City of Clute | Clute, TX | 10,604 | 38 | Detected |
| Casino Arizona | Scottsdale, 09 | 10,603 | 0 | Clean |
| City of Freeport | Freeport, TX | 10,594 | 29 | Detected |
| St James Water District | Kings Park, NY | 10,587 | 9 | Detected |
| Arizona Water Co - Oracle | Phoenix, AZ | 10,585 | 18 | Clean |
| Harris County MUD 278 | Houston, TX | 10,584 | 1 | Detected |
| Charlotte County Utilities / Burnt Store | Port Charlotte, FL | 10,582 | 32 | Clean |
| Speedway Water Works | Speedway, IN | 10,578 | 214 | Detected |
| Lemars Water Department | Lemars, IA | 10,571 | 142 | Clean |
| Vermilion City | Vermilion, OH | 10,569 | 316 | Clean |
| South Davis Water District | Bountiful, UT | 10,565 | 48 | Detected |
| Hartsville-Trousdale W&S U.d. | Hartsville, TN | 10,562 | 185 | Clean |
| Mandalay Bay Resort and Casino | Las Vegas, NV | 10,549 | 8 | - |
| Victoria | Victoria, MN | 10,546 | 10 | Clean |
| City of Leesville Water System | Leesville, LA | 10,545 | 57 | Clean |
| North Lauderdale W/a, Inc | Bailey, MS | 10,544 | 358 | Clean |
| Hormiguero | Hormiguero, PR | 10,541 | 335 | Clean |
| Flat Rock | Flat Rock, MI | 10,541 | 11 | Clean |
| Harris County Wcid 96 | Houston, TX | 10,530 | 4 | Detected |
| Demopolis Water Works and Sewer Board | Demopolis, AL | 10,530 | 120 | Clean |
| Luttrell-Blaine-Corryton U.d. | Luttrell, TN | 10,529 | 28 | Detected |
| Greenwood Utility District | Houston, TX | 10,527 | 1 | Detected |
| Grants Domestic Water System | Grants, NM | 10,523 | 68 | Clean |
| Cambridge, City Of | Cambridge, OH | 10,520 | 494 | Detected |
| Southborough Dpw Water Division (Mwra) | Southborough, MA | 10,514 | 17 | Clean |
| Lakeway MUD | Lakeway, TX | 10,512 | 7 | Clean |
| Elk City | Elk City, OK | 10,510 | 56 | Clean |
| Green River, City Of | Green River, WY | 10,500 | 5 | Clean |
| Deforest Waterworks | Deforest, WI | 10,500 | 20 | Clean |
| Tega Cay City of (Sc4610008) | Tega Cay, SC | 10,500 | 15 | Detected |
| Kennett PWS | Kennett, MO | 10,500 | 190 | Detected |
| Danville Water Works | Danville, IN | 10,500 | 8 | Detected |