ROCKY KNOLL MHP
PWS ID: IA9525601 · LELAND, Iowa 50453
Population Served
49
Total Violations
502
Health-Based Violations
33
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 35
- County
- Winnebago
- School/Daycare
- No
- MCL Violations
- 33
- Monitoring Violations
- 431
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 122 | 2011 |
| Coliform (TCR) | MCL | 33 | 2013 |
| Consumer Confidence Rule | Other | 24 | 2008 |
| Lead and Copper Rule | MR | 22 | 2002 |
| Nitrate | MR | 21 | 2009 |
| Antimony, Total | MR | 6 | 1997 |
| Arsenic | MR | 6 | 1997 |
| Barium | MR | 6 | 1997 |
| Fluoride | MR | 6 | 1997 |
| Mercury | MR | 6 | 1997 |
| Selenium | MR | 6 | 1997 |
| Thallium, Total | MR | 6 | 1997 |
| p-Dichlorobenzene | MR | 6 | 1997 |
| 1,1-Dichloroethylene | MR | 6 | 1997 |
| cis-1,2-Dichloroethylene | MR | 6 | 1997 |
| trans-1,2-Dichloroethylene | MR | 6 | 1997 |
| Ethylbenzene | MR | 6 | 1997 |
| Styrene | MR | 6 | 1997 |
| Tetrachloroethylene | MR | 6 | 1997 |
| Toluene | MR | 6 | 1997 |
| 1,2,4-Trichlorobenzene | MR | 6 | 1997 |
| 1,1,1-Trichloroethane | MR | 6 | 1997 |
| 1,1,2-Trichloroethane | MR | 6 | 1997 |
| Vinyl chloride | MR | 6 | 1997 |
| Xylenes, Total | MR | 6 | 1997 |
| 2,4-D | MR | 6 | 1997 |
| Dalapon | MR | 6 | 1997 |
| Benzo(a)pyrene | MR | 6 | 1997 |
| 2,4,5-TP | MR | 6 | 1997 |
| Combined Radium (-226 and -228) | MR | 6 | 2003 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.