Public Water Systems
10,988 active public water systems in WI, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Prairie Du Sac Town Hall | Prairie Du Sac, WI | 25 | 0 | - |
| Beckman Mill Co Park | Janesville, WI | 25 | 55 | - |
| Beckmann Mill Historic Buildings | Janesville, WI | 25 | 0 | - |
| WI DOT Fairy Dell Park Wayside 3 | Madison, WI | 25 | 20 | - |
| Frankies | Baraboo, WI | 25 | 3 | - |
| Expeditions Unltd - Adventure Center | Baraboo, WI | 25 | 4 | - |
| Moon Valley Resort | Waunakee, WI | 25 | 0 | - |
| Cornerstone Missionary Baptist Church | Reedsburg, WI | 25 | 0 | - |
| WI DNR Strawbridge Well | Ontario, WI | 25 | 25 | - |
| Glacier Ridge Condominiums | Merrimac, WI | 25 | 10 | - |
| Sauk Co White Mound Horse Campground | Hillpoint, WI | 25 | 0 | - |
| WI Dells KOA Campground - West Well #3 | Casper, WI | 25 | 0 | - |
| Sorensen Field | Salem, WI | 25 | 28 | - |
| Best Bargains | New Munster, WI | 25 | 5 | - |
| WI DNR Richard Bong Sunrise Grp Site D | Madison, WI | 25 | 39 | - |
| WI DNR Richard Bong Suz Toilet Building | Madison, WI | 25 | 22 | - |
| WI DNR Richard Bong Sunrise Site 23 | Madison, WI | 25 | 31 | - |
| Kings Motel | Milwaukee, WI | 25 | 19 | - |
| WI DNR Richard Bong Shop | Madison, WI | 25 | 18 | - |
| Oasis Inn | Kenosha, WI | 25 | 15 | - |
| Trevor Mini Mart | Wheeling, WI | 25 | 1 | - |
| Head Hunters Hair Salon | Trevor, WI | 25 | 2 | - |
| Trevor Citgo | Lake Geneva, WI | 25 | 18 | - |
| Western Kenosha Historical Scty | Trevor, WI | 25 | 3 | - |
| Donovans Reef | Twin Lakes, WI | 25 | 8 | - |
| Lodge on Lake George | Bristol, WI | 25 | 15 | - |
| WI DNR Richard Bong Sunrise Site 6 | Madison, WI | 25 | 32 | - |
| WI DNR Richard Bong Sunset Site 442 | Madison, WI | 25 | 78 | - |
| WI DNR Richard Bong Sunset Site 402 | Madison, WI | 25 | 46 | - |
| WI DNR Richard Bong Sunset Site 330 | Madison, WI | 25 | 43 | - |
| Salem Mini Mart | Glendale Heights, WI | 25 | 17 | - |
| Ralphs Ace of Hearts | Trevor, WI | 25 | 21 | - |
| Bristol Woods | Bristol, WI | 25 | 10 | - |
| Lily Lake Resort | Burlington, WI | 25 | 28 | - |
| Sturinos | Kenosha, WI | 25 | 14 | - |
| Twin Lakes Roadhouse | Twin Lakes, WI | 25 | 12 | - |
| Wilmot Stage Stop | Wilmot, WI | 25 | 0 | - |
| Trevor Bp | Lake Geneva, WI | 25 | 0 | - |
| Camp Crown Shelter | Vernon Hills, WI | 25 | 16 | - |
| Camp Crown Baldy | Vernon Hills, WI | 25 | 4 | - |
| Twin Lakes Ace Hardware | Twin Lakes, WI | 25 | 8 | - |
| Beach Bar | Kenosha, WI | 25 | 4 | - |
| Wilmot Mountain Inc | Wilmot, WI | 25 | 20 | - |
| Sit-N-Bull | Burlington, WI | 25 | 9 | - |
| Wilmot Auto Service - Convenience Store & Cafe | Wilmot, WI | 25 | 17 | - |
| Bassett Creek | Bassett, WI | 25 | 0 | - |
| Westosha Baptist Church | Bassett, WI | 25 | 8 | - |
| Mannys Snack Shack | Twin Lakes, WI | 25 | 5 | - |
| Stumble Inn | Union Grove, WI | 25 | 10 | - |
| Lance Park Scout House | Twin Lakes, WI | 25 | 18 | - |