F6/100
LAUREL MUNICIPAL WATER SYSTEM — Water Quality Report 2026
Serving 6,339 people · Montana
Water Source
Surface Water
County
—
System ID
MT0000270
Violations
63
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.92 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2022 – September 18, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Violation related to Nitrate
When: June 1, 2022 – June 30, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2021 – July 23, 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 LAUREL MUNICIPAL WATER SYSTEM
Is LAUREL MUNICIPAL WATER SYSTEM water safe to drink?
LAUREL MUNICIPAL WATER SYSTEM water receives a grade of F (6/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 63 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has LAUREL MUNICIPAL WATER SYSTEM detected?
32 contaminants were tested in LAUREL MUNICIPAL WATER SYSTEM's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does LAUREL MUNICIPAL WATER SYSTEM have any EPA violations?
Yes, LAUREL MUNICIPAL WATER SYSTEM has 63 EPA violation(s) on record, with the most recent in 2022. Violation types include MR, TT, Other. 5 are health-based violations.
How many people does LAUREL MUNICIPAL WATER SYSTEM serve?
LAUREL MUNICIPAL WATER SYSTEM serves approximately 6,339 people, Montana. The system provides water to 1 community: Laurel.
What type of water does LAUREL MUNICIPAL WATER SYSTEM provide?
LAUREL MUNICIPAL WATER SYSTEM sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is MT0000270.
How does LAUREL MUNICIPAL WATER SYSTEM compare to other utilities in Montana?
LAUREL MUNICIPAL WATER SYSTEM scores 6/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Montana state page for a full comparison of water systems.