Grafton, Wisconsin Water Violations
19 water systems serve Grafton, Wisconsin, providing drinking water to an estimated 14,915 people. These systems have 11 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 System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| Osprey Mobile Home Park | 150 | Groundwater | 19 | 10 |
| Stonecroft Condominium Assn | 50 | Groundwater | 12 | 1 |
| Grafton Waterworks | 12,269 | Groundwater | 4 | 0 |
| Little Red School House | 75 | Groundwater | 3 | 0 |
| Fire Ridge Golf Club | 50 | Groundwater | 2 | 0 |
| New Frontiers Preschool | 152 | Groundwater | 1 | 0 |
| Ozaukee Daycare Center - Ulao 2 | 98 | Groundwater | 1 | 0 |
| Welcome Mart | 405 | Groundwater | 0 | 0 |
| Ozaukee Congreg Church & Parish House | 402 | Groundwater | 0 | 0 |
| Ozaukee Congreg Fellowship Hall | 401 | Groundwater | 0 | 0 |
| Cornerstone Church | 253 | Groundwater | 0 | 0 |
| Vineyard Community Church | 162 | Groundwater | 0 | 0 |
| Edgewater Golf Club | 102 | Groundwater | 0 | 0 |
| St Johns Lutheran Church | 98 | Groundwater | 0 | 0 |
| Lions Den Gorge Co Park | 75 | Groundwater | 0 | 0 |
| Carpets Galore | 54 | Groundwater | 0 | 0 |
| Ghost Town Tavern & Restaurant | 50 | Groundwater | 0 | 0 |
| Seek Inc | 37 | Groundwater | 0 | 0 |
| Dds-Sc | 32 | Groundwater | 0 | 0 |