MARIAN HEIGHTS SUBDIVISION
PWS ID: WI2680203 · ELM GROVE, Wisconsin 53122
Population Served
400
Total Violations
277
Health-Based Violations
44
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 110
- County
- Waukesha
- School/Daycare
- No
- MCL Violations
- 36
- Monitoring Violations
- 189
- Treatment Tech Violations
- 8
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 36 | 2015 |
| Coliform (TCR) | MR | 36 | 2002 |
| Consumer Confidence Rule | Other | 33 | 2010 |
| Lead and Copper Rule | MR | 13 | 2018 |
| Mercury | MR | 10 | 1995 |
| Arsenic | MR | 10 | 1995 |
| Cadmium | MR | 10 | 1995 |
| Chromium | MR | 10 | 1995 |
| Fluoride | MR | 10 | 1995 |
| Nitrate | MR | 10 | 1995 |
| Barium | MR | 10 | 1995 |
| Nitrite | MR | 10 | 1995 |
| Selenium | MR | 10 | 1995 |
| Nitrate-Nitrite | MR | 10 | 1995 |
| Public Notice | Other | 9 | 2009 |
| Combined Radium (-226 and -228) | MR | 9 | 1996 |
| Radium-228 | MR | 9 | 1996 |
| Gross Alpha, Excl. Radon and U | MR | 9 | 1996 |
| Radium-226 | MR | 9 | 1996 |
| Lead and Copper Rule | TT | 8 | 2007 |
| E. COLI | MR | 4 | 2019 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.