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 |
|---|---|---|---|---|
| Norman Waterworks | Norman, AR | 750 | 625 | - |
| Gray Rock Water Association | Paris, AR | 750 | 28 | - |
| International Paper Company, | Selma, AL | 750 | 23 | - |
| Heritage University Water System | Toppenish, 10 | 750 | 71 | - |
| Mescalero Windmill | 06 | 750 | 49 | - |
| Estelline | Estelline, SD | 749 | 205 | - |
| Ashley City Of | Ashley, ND | 749 | 10 | - |
| Morehouse PWS | Morehouse, MO | 749 | 105 | - |
| Stockley Center | Newark, DE | 749 | 18 | - |
| White Fence Farms MWC No.3 | Lancaster, CA | 749 | 48 | - |
| Arapaho | Arapaho, OK | 748 | 81 | - |
| Village of Tangipahoa Water System | Tangipahoa, LA | 748 | 183 | - |
| Cocojos - a Zoomers RV Resort -Campstore | Lagro, IN | 748 | 41 | - |
| Bluffs | Bluffs, IL | 748 | 55 | Clean |
| Placer Cwa - Alta | Auburn, CA | 748 | 3 | - |
| Msbsd Teeland Middle School | Wasilla, AK | 748 | 24 | - |
| Llano County MUD 1 | Horseshoe Bay, TX | 747 | 133 | - |
| La Ventana Water Supply System | Dripping Springs, TX | 747 | 20 | Clean |
| Stable Gates | Austin, TX | 747 | 11 | - |
| City of Bardwell | Bardwell, TX | 747 | 332 | - |
| North Farmersville WSC | Farmersville, TX | 747 | 93 | - |
| Clarks Summit State Hospital | Clarks Summit, PA | 747 | 217 | - |
| Minnewaska State Park Visitor Center | New Paltz, NY | 747 | 0 | - |
| San Andres Estates Water System (Lcu) | Las Cruces, NM | 747 | 7 | - |
| Acorn Campground-Main We | Cape May, NJ | 747 | 19 | - |
| Deshler, City Of | Deshler, NE | 747 | 38 | - |
| Hebron City Of | Hebron, ND | 747 | 27 | - |
| Woodland, Town Of | Woodland, NC | 747 | 11 | - |
| White Oak Water Association | Morton, MS | 747 | 539 | - |
| Pleasant Grove Water Assn, Inc | Sardis, MS | 747 | 13 | Clean |
| Stewardson | Stewardson, IL | 747 | 27 | - |
| Keithsburg | Keithsburg, IL | 747 | 24 | - |
| Henrys Fork Lds Church | Rexburg, ID | 747 | 0 | - |
| McGregor Water Dept | McGregor, IA | 747 | 4 | - |
| Uvalda | Uvalda, GA | 747 | 58 | - |
| Thoreau High School | Thoreau, NN | 746 | 61 | - |
| Pilot Knob PWS | Pilot Knob, MO | 746 | 9 | - |
| Waverly Hall | Waverly Hall, GA | 746 | 264 | - |
| Lake Mohave Highlands | Bullhead City, AZ | 746 | 90 | - |
| Hartford Town Of | Hartford, WV | 745 | 519 | - |
| Acued. Rural Turado Arriba | Caguas, PR | 745 | 302 | - |
| Reeds Market | Crosslake, MN | 745 | 0 | - |
| Belgrade | Belgrade, MN | 745 | 5 | - |
| South Range | South Range, MI | 745 | 23 | - |
| Southern Middle School | Prince Frederick, MD | 745 | 22 | - |
| Montgomery Co RWD 4 | Sycamore, KS | 745 | 72 | - |
| Swan Lake Golf Resort- Motel/Conference | Plymouth, IN | 745 | 105 | - |
| Snake River High School | Blackfoot, ID | 745 | 59 | - |
| Ancient Oaks RV Resort | Okeechobee, FL | 745 | 194 | - |
| Shady Hill Elementary School | Ocala, FL | 745 | 28 | - |
Download the SDWIS/UCMR5 state landscape snapshot cited on this page: sdwis-state-landscape.csv (same CSV as /statistics, CC0).