NAPA RIVER RANCH Water Quality Report
Population
70
people served
Water Source
🏔️ Ground
wells & aquifers
National Rank
Top 94%
of 49,184 US systems
5-Year Record
⚠️ 21
violations recorded
D
Poor
Safety Grade
21 violations in the past 5 years, including 3 health-based
System Details
- PWSID
- CA2800531
- Population Served
- 70
- Water Source
- Ground Water
- Owner
- Private
- State
- California
- EPA Region
- 9
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 3100 | ⚠ Monitoring/Reporting | 1 |
| Nitrate | ⚠ Monitoring/Reporting | 6 |
| Contaminant 8000 | ✕ Health-Based | 7 |
| Contaminant 5000 | ⚠ Monitoring/Reporting | 15 |
| Contaminant 7000 | ⚠ Monitoring/Reporting | 3 |
| Contaminant 5200 | ✕ Health-Based | 2 |
| Contaminant 1080 | ⚠ Monitoring/Reporting | 1 |
Violation History
2025
2
2024
2
2023
8
2022
6
2021
3
2020
2
2019
5
2018
4
2016
2
1993
1
Total violations on record: 35
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 D
Avg: B-C
35violations total
125% of national average
National avg: ~28 per system
🏘️ Small community water system.