C52/100
BIGFORK COUNTY WATER AND SEWER — Water Quality Report 2026
Serving 6,100 people · Montana
Water Source
Groundwater
County
—
System ID
MT0000262
Violations
17
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.49 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2015.
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 BIGFORK COUNTY WATER AND SEWER
Is BIGFORK COUNTY WATER AND SEWER water safe to drink?
BIGFORK COUNTY WATER AND SEWER water receives a grade of C (52/100), which is considered fair. 1 contaminant(s) exceed EPA legal limits and 17 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has BIGFORK COUNTY WATER AND SEWER detected?
32 contaminants were tested in BIGFORK COUNTY WATER AND SEWER's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does BIGFORK COUNTY WATER AND SEWER have any EPA violations?
Yes, BIGFORK COUNTY WATER AND SEWER has 17 EPA violation(s) on record, with the most recent in 2015. Violation types include MR, MCL. 5 are health-based violations.
How many people does BIGFORK COUNTY WATER AND SEWER serve?
BIGFORK COUNTY WATER AND SEWER serves approximately 6,100 people, Montana. The system provides water to 1 community: Bigfork.
What type of water does BIGFORK COUNTY WATER AND SEWER provide?
BIGFORK COUNTY WATER AND SEWER sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MT0000262.
How does BIGFORK COUNTY WATER AND SEWER compare to other utilities in Montana?
BIGFORK COUNTY WATER AND SEWER scores 52/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Montana state page for a full comparison of water systems.