A89/100
SUPERIOR TOWN OF — Water Quality Report 2026
Serving 1,100 people · Montana
Water Source
Groundwater
County
—
System ID
MT0000339
Violations
8
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
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 2017.
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 SUPERIOR TOWN OF
Is SUPERIOR TOWN OF water safe to drink?
SUPERIOR TOWN OF water receives a grade of A (89/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has SUPERIOR TOWN OF detected?
1 contaminants were tested in SUPERIOR TOWN OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does SUPERIOR TOWN OF have any EPA violations?
Yes, SUPERIOR TOWN OF has 8 EPA violation(s) on record, with the most recent in 2017. Violation types include MR.
How many people does SUPERIOR TOWN OF serve?
SUPERIOR TOWN OF serves approximately 1,100 people, Montana. The system provides water to 1 community: Superior.
What type of water does SUPERIOR TOWN OF provide?
SUPERIOR TOWN OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MT0000339.
How does SUPERIOR TOWN OF compare to other utilities in Montana?
SUPERIOR TOWN OF scores 89/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Montana state page for a full comparison of water systems.