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 |
|---|---|---|---|---|
| Jerome Town Of | Jerome, AZ | 440 | 162 | - |
| Big Spring Terrace MHP | Berwyn, PA | 439 | 242 | - |
| Titusville Intermediate School | Lagrangeville, NY | 439 | 68 | - |
| North Salem Elementary Sch | Salem, NH | 439 | 16 | - |
| Perrinton, Village Of | Perrinton, MI | 439 | 33 | - |
| Harry Lee Cole School | Boxford, MA | 439 | 91 | - |
| Ocheyedan Water Works | Ocheyedan, IA | 439 | 23 | - |
| Bennett Ridge Mutual Water Company | Santa Rosa, CA | 439 | 9 | - |
| Montezuma Rimrock Water Company | Rimrock, AZ | 439 | 330 | - |
| Lisbon Water Association | El Dorado, AR | 439 | 23 | - |
| Kpbsd Nikiski Middle/High School | Soldotna, AK | 439 | 61 | - |
| Msbsd Tanaina Elementary | Wasilla, AK | 439 | 51 | - |
| St Gabriel School-Parish | Hubertus, WI | 438 | 20 | - |
| Stoneleigh | Round Hill, VA | 438 | 0 | - |
| Greenleaf Nursery Administration | El Campo, TX | 438 | 27 | - |
| Clayton WSC Plant 3 and 7 | Clayton, TX | 438 | 166 | - |
| Tierra del Rey | Pinehurst, TX | 438 | 1,295 | - |
| Spring Creek United Methodist Church | Fair Oaks Ranch, TX | 438 | 109 | - |
| Hart Ranch | Rapid City, SD | 438 | 237 | - |
| Frontier Camper Park Inc | Ashaway, RI | 438 | 60 | - |
| Jackson Co Pks Emigrant Lake | Central Point, OR | 438 | 45 | - |
| Sooner Utilities - Sleepy Hollow | Edmond, OK | 438 | 106 | - |
| Leicester Village | Leicester, NY | 438 | 1 | - |
| Goose Hollow Travel Trailer Pk | Thornton, NH | 438 | 41 | - |
| Badger Hill | Nashua, NH | 438 | 2 | - |
| Pineville Water Association #1 | Raleigh, MS | 438 | 558 | - |
| Moore Bayou Water Association | Tutwiler, MS | 438 | 341 | - |
| Sand Creek High School | MI | 438 | 7 | - |
| Thompsonville, Village Of | Thompsonville, MI | 438 | 51 | - |
| Adventure Bound Camping, Cc @ Hortons | Vero Beach, MA | 438 | 2 | - |
| Hidden Oaks Subdivision WS | West Monroe, LA | 438 | 242 | - |
| Lagro Municipal Water Department | Lagro, IN | 438 | 30 | - |
| Little Swan Lake SD | Monmouth, IL | 438 | 56 | - |
| Mount Vernon Association Inc | East Dubuque, IL | 438 | 17 | - |
| Weippe City Of | Weippe, ID | 438 | 8 | - |
| Hawkeye Water Supply | Hawkeye, IA | 438 | 36 | - |
| Brookside Town Of | Brookside, CO | 438 | 29 | - |
| Psmcsd - Vega RD WS #01 | Royal Oaks, CA | 438 | 18 | - |
| Son Shine Properties | Edison, CA | 438 | 92 | - |
| Kenai Princess Lodge | Denali Park, AK | 438 | 19 | - |
| Tilmans Farm | Richmond, VA | 437 | 4 | - |
| Mathews Elementary School | Mathews, VA | 437 | 54 | - |
| Ecv/Scott Co Psa | Weber City, VA | 437 | 30 | - |
| New Oxford Mhc | Farmington Hills, PA | 437 | 64 | - |
| Frontier Development Auth | Butler, OK | 437 | 51 | - |
| Canoncito Community Day School BIA | Tohajiilee, NN | 437 | 141 | - |
| Conover RD Elem School | Colts Neck, NJ | 437 | 13 | - |
| Freeburg PWS | Freeburg, MO | 437 | 189 | - |
| Huron Township (Huron County) | Port Hope, MI | 437 | 30 | - |
| Seventh District Elementary | Baltimore, MD | 437 | 17 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).