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B64/100

MONTANA STATE PRISON — Water Quality Report 2026

Serving 2,100 people · Montana

Water Source
Groundwater
County
—
System ID
MT0000198
Violations
25

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.002 mg/L0.015 mg/LAbove Goal

EPA Violation History

7

Violations (last 5yr)

2

Unresolved

0

Health-Related

TIER 3Unresolved

Surface water treatment technique failure

When: October 1, 2025Enforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: August 1, 2025 – August 31, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Surface water treatment technique failure

When: July 1, 2025Enforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Monitoring / Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: December 30, 2024 – December 9, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed to conduct Level 1 Assessment

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: November 6, 2024 – June 23, 2025Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: November 1, 2024 – November 30, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Monitoring / Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: December 30, 2021 – January 10, 2022Rule: Ground Water RuleEnforcement: 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 MONTANA STATE PRISON

Is MONTANA STATE PRISON water safe to drink?

MONTANA STATE PRISON water receives a grade of B (64/100), which is considered good. Out of 18 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.

What contaminants has MONTANA STATE PRISON detected?

18 contaminants were tested in MONTANA STATE PRISON's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does MONTANA STATE PRISON have any EPA violations?

Yes, MONTANA STATE PRISON has 25 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MON, MR. 2 are health-based violations.

How many people does MONTANA STATE PRISON serve?

MONTANA STATE PRISON serves approximately 2,100 people, Montana. The system provides water to 1 community: Deer Lodge.

What type of water does MONTANA STATE PRISON provide?

MONTANA STATE PRISON sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MT0000198.

How does MONTANA STATE PRISON compare to other utilities in Montana?

MONTANA STATE PRISON scores 64/100 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.

Cities Served

Deer Lodge