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 |
|---|---|---|---|---|
| Pelham Water Works | Pelham, AL | 38,703 | 38 | Detected |
| Warrior River Water Authority | Bessemer, AL | 38,700 | 21 | Detected |
| Keizer, City Of | Keizer, OR | 38,585 | 53 | Detected |
| North Coast County Water Dist | Pacifica, CA | 38,546 | 5 | Clean |
| City and Borough of Juneau | Juneau, AK | 38,526 | 390 | Clean |
| Newtown Artesian Water Co | Newtown, PA | 38,500 | 495 | Detected |
| Oldham County Water District | Buckner, KY | 38,409 | 30 | Clean |
| Marina Coast Water District | Marina, CA | 38,377 | 8 | Clean |
| Shrewsbury Water Department | Shrewsbury, MA | 38,325 | 25 | Detected |
| Chelsea Water Dept. (Mwra) | Chelsea, MA | 38,319 | 34 | Clean |
| Muskogee | Muskogee, OK | 38,310 | 236 | Clean |
| Golden City Of | Golden, CO | 38,288 | 0 | Clean |
| Englewood Water Dist | Englewood, FL | 38,265 | 78 | Clean |
| Gswc - Culver City | Anaheim, CA | 38,213 | 7 | Clean |
| Electric City Utilities (Sc0410012) | Anderson, SC | 38,204 | 13 | Detected |
| Oswego | Oswego, IL | 38,169 | 285 | Clean |
| Lincoln Park | Lincoln Park, MI | 38,144 | 19 | Clean |
| Tejon Castac WD - I5 & Laval RD | Lebec, CA | 38,125 | 26 | Clean |
| Milcrofton Utility District | Franklin, TN | 38,032 | 24 | Clean |
| Addison | Addison, IL | 38,017 | 19 | Clean |
| Epcor - Sun City | El Mirage, AZ | 38,016 | 308 | Clean |
| Moon Twp Muni Auth | Moon Township, PA | 38,000 | 168 | Detected |
| Carpentersville | Carpentersville, IL | 37,983 | 17 | Clean |
| Monrovia-City, Water Dept. | Monrovia, CA | 37,931 | 3 | Detected |
| Schofield Barracks | Schofield Barracks, HI | 37,920 | 23 | Clean |
| Torrington Water Company | Shelton, CT | 37,915 | 105 | Clean |
| New Bern, City Of | New Bern, NC | 37,884 | 16 | Clean |
| Craven County Water System | New Bern, NC | 37,848 | 148 | Clean |
| Reynoldsburg City PWS | Reynoldsburg, OH | 37,847 | 5 | Detected |
| IA Regional Utilities Assoc (Waverly) | Newton, IA | 37,820 | 8 | Clean |
| Gcwsd Waccamaw Neck (Sc2220010) | Pawleys Island, SC | 37,790 | 24 | Detected |
| Germantown Water Dept | Germantown, TN | 37,738 | 333 | Clean |
| Bristol Department of Utilities | Bristol, TN | 37,648 | 45 | Clean |
| Redmond Water Department | Redmond, OR | 37,566 | 26 | Clean |
| Jbsa - Sam Houston | San Antonio, TX | 37,563 | 218 | Clean |
| Bountiful City Water System | Bountiful, UT | 37,500 | 463 | Detected |
| Usmc Lejeune--Hadnot Point | Camp Lejeune, NC | 37,500 | 11 | Clean |
| Seneca City of (Sc3710002) | Seneca, SC | 37,478 | 17 | Clean |
| Hanover Park | Hanover Park, IL | 37,470 | 102 | Clean |
| Byron-Gaines Utility Authority | Caledonia, MI | 37,464 | 0 | Clean |
| Gloucester Public Utility Division | Gloucester, MA | 37,440 | 171 | Clean |
| North Springs Improvement District | Coral Springs, FL | 37,371 | 77 | Clean |
| Vero Beach, City Of | Vero Beach, FL | 37,308 | 87 | Detected |
| Wallingford Water Department | Wallingford, CT | 37,267 | 188 | Detected |
| City of Copperas Cove | Copperas Cove, TX | 37,225 | 10 | Detected |
| Jackson Twp Mua | Jackson, NJ | 37,224 | 70 | Clean |
| Muskegon | Muskegon, MI | 37,213 | 13 | Clean |
| Vaughn WC Inc | Bakersfield, CA | 37,189 | 14 | Detected |
| Grants Pass, City Of | Grants Pass, OR | 37,138 | 48 | Clean |
| Tooele City Water System | Tooele, UT | 37,100 | 1,670 | Clean |