HORIZON COLONY Water Quality Report
Population
150
people served
Water Source
🏔️ Ground
wells & aquifers
National Rank
Top 43%
of 49,184 US systems
5-Year Record
✅ Clean
no violations
A
Safe
Safety Grade
0 violations in the past 5 years
System Details
- PWSID
- MT0004529
- Population Served
- 150
- Water Source
- Ground Water
- Owner
- Private
- State
- Montana
- EPA Region
- 8
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7000 | ⚠ Monitoring/Reporting | 1 |
| Cyanide | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2032 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2033 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2034 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2383 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2931 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2946 | ⚠ Monitoring/Reporting | 2 |
Violation History
2020
14
2013
1
Total violations on record: 15
Service Area
Cities Served
ZIP Codes Served
How does this compare?
This systemNational average
Grade A
Avg: B-C
15violations total
54% of national average
National avg: ~28 per system
🏘️ Small community water system.