TWIN FALLS CITY OF Water Quality Report
C
Fair
Safety Grade
25 violations in the past 5 years
System Details
- PWSID
- ID5420058
- Population Served
- 56,121
- Water Source
- Ground Water
- Owner
- Local Government
- State
- Idaho
- EPA Region
- 10
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Total Coliform | ⚠ Monitoring/Reporting | 4 |
| Contaminant 7500 | ⚠ Monitoring/Reporting | 10 |
| Nitrite | ⚠ Monitoring/Reporting | 3 |
| Contaminant 5000 | ⚠ Monitoring/Reporting | 2 |
| Nitrate | ⚠ Monitoring/Reporting | 9 |
| Contaminant 1016 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 1064 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 1925 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 1927 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 1996 | ⚠ Monitoring/Reporting | 4 |
Violation History
2025
4
2024
10
2023
4
2022
7
2015
3
2014
3
2012
7
2011
1
2010
3
Total violations on record: 42
Service Area
Cities Served
ZIP Codes Served
Recommended Water Filters
Based on contaminants detected in this water system:
Reverse Osmosis System
Removes up to 99% of contaminants including PFAS, lead, arsenic, and nitrates
Removes: Nitrate, Nitrite
UV Water Purifier
Kills bacteria and viruses without chemicals
Removes: Total Coliform