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 |
|---|---|---|---|---|
| Bais Yaakov School for Girls | Baltimore, MD | 940 | 102 | - |
| Groton Dunstable Reg. H.s. | Groton, MA | 940 | 33 | - |
| Mjt Holdings LLC | Fort Wayne, IN | 940 | 6 | - |
| Kinmundy | Kinmundy, IL | 940 | 137 | Clean |
| Stoneridge Utilities | Blanchard, ID | 940 | 63 | - |
| Rosamond School Water System | Rosamond, CA | 940 | 94 | - |
| Whetstone Dwid | Huachuca City, AZ | 940 | 105 | - |
| Tal Tex | Austin, TX | 939 | 9 | - |
| Lake Livingston Holiday Shores 1 2 3 | Livingston, TX | 939 | 15 | - |
| Worthing | Worthing, SD | 939 | 124 | - |
| Killdeer City Of | Killdeer, ND | 939 | 2 | - |
| Pine River | Pine River, MN | 939 | 27 | - |
| Mansfield | Mansfield, IL | 939 | 31 | - |
| Edgewood Water Supply | Edgewood, IA | 939 | 11 | - |
| Lyle Water System | Goldendale, WA | 938 | 8 | - |
| Lake Livingston Indian Springs Lake | Livingston, TX | 938 | 132 | - |
| City of Tioga | Tioga, TX | 938 | 8 | - |
| Hill Sparrow Master HOA | Somers, NY | 938 | 92 | - |
| Ronda, Town Of | Ronda, NC | 938 | 68 | - |
| NW Cass County Water Resource District | Belton, MO | 938 | 16 | - |
| Andale, City Of | Andale, KS | 938 | 20 | - |
| Deer Water Association | Deer, AR | 938 | 549 | - |
| Chevak Water System | Chevak, AK | 938 | 530 | - |
| Carpendale, Town Of | Ridgeley, WV | 937 | 67 | - |
| Iron Ridge Waterworks | Iron Ridge, WI | 937 | 7 | - |
| City of Earth | Earth, TX | 937 | 41 | - |
| Allen PWA | Allen, OK | 937 | 19 | - |
| Bethlehem Water Association | Blue Mountain, MS | 937 | 32 | - |
| Wrentham Developmental Center | Wrentham, MA | 937 | 22 | - |
| Dresser Waterworks | Dresser, WI | 936 | 43 | - |
| Owen Waterworks | Owen, WI | 936 | 4 | - |
| New Prospect WSC Plant 1 | Henderson, TX | 936 | 34 | - |
| Coolcrest Water System | Austin, TX | 936 | 8 | Clean |
| Las Alturas Estates (Lcu) | Las Cruces, NM | 936 | 6 | - |
| Aqua NJ - Califon | Hamilton, NJ | 936 | 29 | - |
| Lockwood PWS | Lockwood, MO | 936 | 4 | - |
| Country Pines North Subdivision WS | Mandeville, LA | 936 | 100 | - |
| Stafford, City Of | Stafford, KS | 936 | 35 | - |
| Saline Co RWD 3 | Assaria, KS | 936 | 47 | - |
| Goodfield | Goodfield, IL | 936 | 30 | - |
| South East Pump District | Dover, DE | 936 | 4 | - |
| Mescalero Carrizo | 06 | 936 | 64 | - |
| Miller | Napavine, WA | 935 | 40 | - |
| Abbvie Norte | Barceloneta, PR | 935 | 17 | - |
| Beavertown Municipal Authority | Beavertown, PA | 935 | 567 | - |
| Texhoma | Texhoma, OK | 935 | 140 | - |
| Town Pump Missoula 7 Wye | Butte, MT | 935 | 49 | - |
| Hinton Water Supply | Hinton, IA | 935 | 106 | - |
| North Marion Middle School | Ocala, FL | 935 | 40 | - |
| Manoogs Isle Mobile Home Park | Anchorage, AK | 935 | 71 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).