KNOLL TERRACE PARK Water Quality Report
C
Fair
Safety Grade
6 violations in the past 5 years, including 1 health-based
System Details
- PWSID
- OR4100174
- Population Served
- 452
- Water Source
- Ground Water
- Owner
- Private
- State
- Oregon
- EPA Region
- 10
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7000 | ⚠ Monitoring/Reporting | 9 |
| Contaminant 5000 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 8000 | ⚠ Monitoring/Reporting | 1 |
| Nitrate | ⚠ Monitoring/Reporting | 2 |
| Contaminant 5200 | ✕ Health-Based | 1 |
Violation History
2025
1
2024
3
2023
2
2018
1
2005
1
2004
2
2003
2
2002
2
Total violations on record: 14
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