B63/100
EAST HELENA CITY OF — Water Quality Report 2026
Serving 2,114 people · Montana
Water Source
Groundwater
County
—
System ID
MT0000196
Violations
22
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.59 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: June 1, 2025 – June 30, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Consumer confidence report — late or incomplete delivery
When: November 4, 2022 – January 24, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2021 – August 5, 2021Enforcement: Resolving — corrective action underway
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 EAST HELENA CITY OF
Is EAST HELENA CITY OF water safe to drink?
EAST HELENA CITY OF water receives a grade of B (63/100), which is considered good. Out of 2 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has EAST HELENA CITY OF detected?
2 contaminants were tested in EAST HELENA CITY 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 EAST HELENA CITY OF have any EPA violations?
Yes, EAST HELENA CITY OF has 22 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, TT, Other. 1 are health-based violations.
How many people does EAST HELENA CITY OF serve?
EAST HELENA CITY OF serves approximately 2,114 people, Montana. The system provides water to 1 community: Helena.
What type of water does EAST HELENA CITY OF provide?
EAST HELENA CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MT0000196.
How does EAST HELENA CITY OF compare to other utilities in Montana?
EAST HELENA CITY OF scores 63/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Montana state page for a full comparison of water systems.