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 |
|---|---|---|---|---|
| City of Richland Hills | Richland Hills, TX | 8,505 | 24 | Detected |
| Park City, City Of | Park City, KS | 8,503 | 79 | Detected |
| Silver Dollar City Marvel Cave | Branson, MO | 8,501 | 196 | Clean |
| Winooski Water Dept | Winooski, VT | 8,500 | 2 | Clean |
| Greene County Water & Sewer | Ruckersville, VA | 8,500 | 136 | Clean |
| Marion, Town Of | Marion, VA | 8,500 | 23 | Detected |
| North Logan City | Smithfield, UT | 8,500 | 314 | Clean |
| McCormick Co W&sa (Sc3520002) | McCormick, SC | 8,500 | 120 | Detected |
| Ebensburg Boro Muni Auth | Ebensburg, PA | 8,500 | 789 | Clean |
| Wyomissing Boro Water System | Wyomissing, PA | 8,500 | 32 | Detected |
| Moapa Valley Water District | Overton, NV | 8,500 | 95 | Clean |
| Entranosa Water Association | Tijeras, NM | 8,500 | 53 | Clean |
| Jefferson Twp W U Lk Hop | Lake Hopatcong, NJ | 8,500 | 351 | Detected |
| Hanover Water Dept | Hanover, NH | 8,500 | 166 | Clean |
| Gering, City Of | Gering, NE | 8,500 | 130 | Clean |
| Scio Township | Ann Arbor, MI | 8,500 | 20 | Detected |
| Iowa Lakes Regional Water - Osgood | Spencer, IA | 8,500 | 17 | Detected |
| West Miami, City Of | West Miami, FL | 8,500 | 60 | Detected |
| Woodland Park City Of | Woodland, CO | 8,500 | 113 | Clean |
| Perryton Municipal Water System | Perryton, TX | 8,492 | 47 | Clean |
| Colorado River Regional Water System | Parker, 09 | 8,490 | 132 | Clean |
| Big Flats Water District 5 | Big Flats, NY | 8,489 | 27 | Detected |
| Blue Ridge Water Association | Hays, NC | 8,486 | 10 | Detected |
| Buford | Buford, GA | 8,482 | 12 | Clean |
| Ayer Dpw Water Division | Ayer, MA | 8,479 | 55 | Detected |
| SCUA Upper Seven Mile | San Carlos, 09 | 8,478 | 659 | Detected |
| Genesee Township | Genesee, MI | 8,473 | 9 | Clean |
| Collegeville Trappe Joint Pwd | Trappe, PA | 8,470 | 434 | Detected |
| Bay Co. Dept of Water & Sewer | Bay City, MI | 8,465 | 0 | Clean |
| Independence, City Of | Independence, KS | 8,464 | 51 | Clean |
| Chinle-Many Farms-Del Muerto NTUA | Ft Defiance, NN | 8,458 | 302 | Clean |
| Patterson Water System | Patterson, LA | 8,456 | 55 | Detected |
| N Middleton Water Auth | Carlisle, PA | 8,455 | 153 | Detected |
| Harris County MUD 150 | Houston, TX | 8,454 | 58 | Detected |
| Orrville City PWS | Navarre, OH | 8,452 | 40 | Clean |
| Delavan Waterworks | Delavan, WI | 8,451 | 88 | Clean |
| Beebe Waterworks | Beebe, AR | 8,451 | 7 | Detected |
| Cross Anchor Utility District | Greeneville, TN | 8,449 | 69 | Clean |
| Boothbay Region Water District | Boothbay, ME | 8,448 | 25 | Clean |
| Bel Aire, City Of | Bel Aire, KS | 8,448 | 24 | Clean |
| Old Egypt Subdivision | Austin, TX | 8,442 | 10 | Clean |
| Calumet Park | Calumet Park, IL | 8,442 | 51 | Clean |
| Monticello Water Department | Monticello, AR | 8,442 | 24 | Clean |
| Town of Walkersville | Walkersville, MD | 8,440 | 34 | Clean |
| South Hopkins Water District | Dawson Springs, KY 42408, KY | 8,440 | 67 | Detected |
| Usaf Luke Air Force Base | Luke Afb, AZ | 8,440 | 759 | Detected |
| Leitchfield Water Works | Leitchfield, KY | 8,438 | 54 | Clean |
| City of Manvel | Manvel, TX | 8,437 | 51 | - |
| Byrdstown Water Department | Byrdstown, TN | 8,428 | 360 | Detected |
| Beattyville Water Works | Beattyville, KY | 8,428 | 259 | Detected |