CASTANA MUNICIPAL WATER SUPPLY
PWS ID: IA6715083 · CASTANA, Iowa 51010
Population Served
103
Total Violations
332
Health-Based Violations
46
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 85
- County
- Monona
- School/Daycare
- No
- MCL Violations
- 46
- Monitoring Violations
- 221
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 49 | 2020 |
| Coliform (TCR) | MR | 34 | 2015 |
| Nitrate | MCL | 30 | 2007 |
| Carbon tetrachloride | MR | 29 | 1995 |
| Revised Total Coliform Rule | MON | 21 | 2020 |
| E. COLI | MR | 16 | 2020 |
| Coliform (TCR) | MCL | 16 | 2013 |
| Gross Alpha, Excl. Radon and U | MR | 8 | 1988 |
| Consumer Confidence Rule | Other | 6 | 2021 |
| Lead and Copper Rule | MR | 5 | 2017 |
| Public Notice | Other | 5 | 2018 |
| 2,4-D | MR | 4 | 2013 |
| Di(2-ethylhexyl) adipate | MR | 4 | 2013 |
| Dinoseb | MR | 4 | 2013 |
| Picloram | MR | 4 | 2013 |
| Simazine | MR | 4 | 2013 |
| Dalapon | MR | 4 | 2013 |
| Atrazine | MR | 4 | 2013 |
| Di(2-ethylhexyl) phthalate | MR | 4 | 2013 |
| TTHM | MR | 4 | 2020 |
| 2,4,5-TP | MR | 4 | 2013 |
| LASSO | MR | 4 | 2013 |
| Pentachlorophenol | MR | 4 | 2013 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2020 |
| Benzo(a)pyrene | MR | 4 | 2013 |
| Arsenic | MR | 3 | 2002 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.