HEIDELBERG MATERIALS US CEMENT LLC
PWS ID: IA1750196 · MASON CITY, Iowa 50401
Population Served
130
Total Violations
99
Health-Based Violations
30
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 2
- County
- Cerro Gordo
- School/Daycare
- No
- MCL Violations
- 27
- Monitoring Violations
- 69
- Treatment Tech Violations
- 3
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 30 | 2015 |
| Coliform (TCR) | MCL | 27 | 2003 |
| Nitrate | MR | 18 | 2002 |
| Lead and Copper Rule | MR | 9 | 2018 |
| E. COLI | MR | 4 | 2015 |
| TTHM | MR | 4 | 2020 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2020 |
| Groundwater Rule | TT | 3 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.