D29/100
COLUMBUS TOWN OF — Water Quality Report 2026
Serving 1,900 people · Montana
Water Source
Groundwater
County
—
System ID
MT0000185
Violations
60
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.40 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2018.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About COLUMBUS TOWN OF
Is COLUMBUS TOWN OF water safe to drink?
COLUMBUS TOWN OF water receives a grade of D (29/100), which is considered poor. 1 contaminant(s) exceed EPA legal limits and 60 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has COLUMBUS TOWN OF detected?
2 contaminants were tested in COLUMBUS TOWN OF's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does COLUMBUS TOWN OF have any EPA violations?
Yes, COLUMBUS TOWN OF has 60 EPA violation(s) on record, with the most recent in 2018. Violation types include Other, MON, MR.
How many people does COLUMBUS TOWN OF serve?
COLUMBUS TOWN OF serves approximately 1,900 people, Montana. The system provides water to 1 community: Columbus.
What type of water does COLUMBUS TOWN OF provide?
COLUMBUS TOWN OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MT0000185.
How does COLUMBUS TOWN OF compare to other utilities in Montana?
COLUMBUS TOWN OF scores 29/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Montana state page for a full comparison of water systems.