Delafield, Wisconsin Water Violations

71 water systems serve Delafield, Wisconsin, providing drinking water to an estimated 7,766 people. These systems have 28 health-based violations on record, meaning contaminant levels exceeded EPA maximum contaminant levels (MCLs) or required treatment standards were not met.

Select a water system below to see its full violation history, lead and copper testing results, and compliance status.

Water SystemPopulation ServedSourceViolationsHealth-Based
803 Genesee St 115 Groundwater 6 6
Wi Dnr Glacial Drumlin Trail Sullivan Rst Ar 250 Groundwater 13 4
St Johns Northwestern Academies 340 Groundwater 32 3
Sanctuary of Delafield 27 Groundwater 8 3
Wi Dnr Glacial Drumlin Trail Wales Rest Area 300 Groundwater 5 3
Knollcrest 66 Groundwater 6 2
Daybreak Center 105 Groundwater 2 2
Arbors 280 Groundwater 12 1
Apartments of Stoneridge 75 Groundwater 12 1
Cambridge Place of Delafield 50 Groundwater 5 1
Lake Country School 623 Groundwater 4 1
Cushing Elementary 360 Groundwater 3 1
Delafield Lakes 402 50 Groundwater 14 0
Wi Dnr Kmsf Lapham Peak Hausman Nature Center 55 Groundwater 9 0
Quail Hollow Condos 30 Groundwater 9 0
Nagawaukee Pk Beach House W1 100 Groundwater 8 0
Delafield Woods 411 28 Groundwater 8 0
Delafield Lakes 404 25 Groundwater 8 0
Nagawaukee Pk Family Camp W3 25 Groundwater 7 0
Cornerstone Church 202 Groundwater 6 0
Wi Dnr Kmsf Lapham Peak Homestead Hollow 150 Groundwater 6 0
We Energies Delafield Service Center 100 Groundwater 6 0
Lake Country Apartments 84 Groundwater 6 0
Nagawaukee Park Picnic Area 5 75 Groundwater 6 0
Wells St Station 425 West 25 Groundwater 6 0
Wi Dnr Kmsf Lapham Peak Evergreen Shelter 125 Groundwater 5 0
Wi Dnr Kmsf Lapham Peak Visitors Center 27 Groundwater 5 0
Delafield Woods 828 26 Groundwater 5 0
Wells St Station 435 East 25 Groundwater Purchased 5 0
Nagawaukee Pk Pewaukee Lake Access W6 50 Groundwater 4 0
Kar-Tech Inc 46 Groundwater 4 0
Nashotah House 350 Groundwater 3 0
Delafield Square 587 Groundwater 2 0
Delafield Waterworks 300 Groundwater 2 0
Nagawaukee Grp Cmpgd W4 50 Groundwater 2 0
Delafield Hotel 199 Groundwater 1 0
705 Genesee Street 60 Groundwater 1 0
Nagawaukee Pk Picnic Area 1 & 2 25 Groundwater 1 0
Lumber Inn 307 Groundwater 0 0
Christ the King Lutheran Church Delafield 288 Groundwater 0 0
Wi Dnr Kmsf Lapham Peak Lodge 205 Groundwater 0 0
Wi Dnr Kmsf Lapham Peak Tower Picnic Area 200 Groundwater 0 0
Zin-Uncommon California Italian Restaurant 104 Groundwater 0 0
St Michaels Anglican Church 102 Groundwater 0 0
Delafield Presbyterian Church 86 Groundwater 0 0
Wholly Cow Frozen Custard 73 Groundwater 0 0
Lieblang Building 66 Groundwater 0 0
645 Wells St 60 Groundwater 0 0
Fishbones Cajun & Crab Restaurant 54 Groundwater 0 0
Kurts Steak House 54 Groundwater 0 0
Nagawaukee Golf Course W5 52 Groundwater 0 0
Mazatlan 52 Groundwater 0 0
Angelinas Ristorante 50 Groundwater 0 0
Wells Street Tavern 48 Groundwater 0 0
Belfre-Kitchen 45 Groundwater 0 0
440 Wells St 45 Groundwater 0 0
524 Milwaukee St 45 Groundwater 0 0
Delafield Library & City Hall 40 Groundwater 0 0
Clearview Home Corporation 35 Groundwater 0 0
American Legion Post 196 35 Groundwater 0 0
St John Chrysostom Episcopal Rectory & Hall 32 Groundwater 0 0
Delafield Town Hall 32 Groundwater 0 0
Chase Bank of Delafield 31 Groundwater 0 0
Nagawaukee Pk Office W9 30 Groundwater 0 0
Firemans Park 30 Groundwater 0 0
711 Wells St 30 Groundwater 0 0
Fish Hatchery Center 25 Groundwater 0 0
Cushing Park 25 Groundwater 0 0
St Johns Warming Hut 25 Groundwater 0 0
715 Genesee St 25 Groundwater 0 0
528 Wells St 25 Groundwater 0 0