TERRACE LAKES WATER COMPANY
PWS ID: ID4080047 · NEW PLYMOUTH, Idaho 83655
Population Served
475
Total Violations
140
Health-Based Violations
51
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 420
- County
- Boise
- School/Daycare
- No
- MCL Violations
- 51
- Monitoring Violations
- 83
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Fluoride | MCL | 33 | 2010 |
| Chlorine | MR | 21 | 2023 |
| Di(2-ethylhexyl) phthalate | MCL | 12 | 2025 |
| Coliform (TCR) | MR | 12 | 2013 |
| Lead and Copper Rule | MR | 9 | 2001 |
| Nitrate | MR | 8 | 2009 |
| Coliform (TCR) | MCL | 6 | 1993 |
| TTHM | MR | 3 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2023 |
| Revised Total Coliform Rule | MON | 3 | 2022 |
| Public Notice | Other | 2 | 2018 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2004 |
| p-Dichlorobenzene | MR | 1 | 2004 |
| Vinyl chloride | MR | 1 | 2004 |
| 1,1-Dichloroethylene | MR | 1 | 2004 |
| trans-1,2-Dichloroethylene | MR | 1 | 2004 |
| 1,2-Dichloroethane | MR | 1 | 2004 |
| 1,2-Dichloropropane | MR | 1 | 2004 |
| 1,1,2-Trichloroethane | MR | 1 | 2004 |
| Tetrachloroethylene | MR | 1 | 2004 |
| CHLOROBENZENE | MR | 1 | 2004 |
| Benzene | MR | 1 | 2004 |
| Arsenic | MR | 1 | 1999 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 2012 |
| Dalapon | MR | 1 | 1996 |
| 1,1,1-Trichloroethane | MR | 1 | 2004 |
| Trichloroethylene | MR | 1 | 2004 |
| Toluene | MR | 1 | 2004 |
| cis-1,2-Dichloroethylene | MR | 1 | 2004 |
| Styrene | MR | 1 | 2004 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.