COLONIAL OAK WC INC Water Quality Report
Population
198
people served
Water Source
🏔️ Ground
wells & aquifers
National Rank
—
of 49,184 US systems
5-Year Record
⚠️ 7
violations recorded
F
Unsafe
Safety Grade
7 violations in the past 5 years, including 6 health-based
System Details
- PWSID
- CA2700534
- Population Served
- 198
- Water Source
- Ground Water
- Owner
- Private
- State
- California
- EPA Region
- 9
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Nitrate | ✕ Health-Based | 6 |
| Contaminant 5200 | ⚠ Monitoring/Reporting | 1 |
Violation History
2025
1
2024
2
2023
4
Total violations on record: 7
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
How does this compare?
This systemNational average
Grade F
Avg: B-C
7violations total
25% of national average
National avg: ~28 per system
🏘️ Small community water system.