MOUNTAIN SHADOWS HOA INC.
PWS ID: ID4080100 · GARDEN VALLEY, Idaho 83622
Population Served
89
Total Violations
91
Health-Based Violations
19
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 81
- County
- Boise
- School/Daycare
- No
- MCL Violations
- 7
- Monitoring Violations
- 66
- Treatment Tech Violations
- 12
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | TT | 12 | 2018 |
| Coliform (TCR) | MR | 9 | 2015 |
| Coliform (TCR) | MCL | 7 | 2015 |
| Revised Total Coliform Rule | MON | 3 | 2018 |
| E. COLI | MR | 3 | 2018 |
| Lead and Copper Rule | MR | 1 | 2011 |
| Public Notice | Other | 1 | 2013 |
| Diquat | MR | 1 | 2007 |
| Groundwater Rule | Other | 1 | 2013 |
| Glyphosate | MR | 1 | 2007 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2007 |
| OXAMYL | MR | 1 | 2007 |
| Simazine | MR | 1 | 2007 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 2007 |
| Picloram | MR | 1 | 2007 |
| Dinoseb | MR | 1 | 2007 |
| Hexachlorocyclopentadiene | MR | 1 | 2007 |
| Heptachlor epoxide | MR | 1 | 2007 |
| Atrazine | MR | 1 | 2007 |
| LASSO | MR | 1 | 2007 |
| Heptachlor | MR | 1 | 2007 |
| 2,4-D | MR | 1 | 2007 |
| 2,4,5-TP | MR | 1 | 2007 |
| Benzo(a)pyrene | MR | 1 | 2007 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2007 |
| ETHYLENE DIBROMIDE | MR | 1 | 2007 |
| Chlordane | MR | 1 | 2007 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2007 |
| o-Dichlorobenzene | MR | 1 | 2007 |
| 1,1-Dichloroethylene | MR | 1 | 2007 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.