HOLLISTER CITY OF Water Quality Report
Population
220
people served
Water Source
🏔️ Ground
wells & aquifers
National Rank
Top 90%
of 49,184 US systems
5-Year Record
⚠️ 8
violations recorded
C
Fair
Safety Grade
8 violations in the past 5 years
System Details
- PWSID
- ID5420030
- Population Served
- 220
- Water Source
- Ground Water
- Owner
- Local Government
- State
- Idaho
- EPA Region
- 10
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7500 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 0999 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 8000 | ⚠ Monitoring/Reporting | 2 |
Violation History
2025
4
2023
4
2011
1
Total violations on record: 9
Service Area
Cities Served
ZIP Codes Served
How does this compare?
This systemNational average
Grade C
Avg: B-C
9violations total
32% of national average
National avg: ~28 per system
🏘️ Small community water system.