C50/100
Stevensville Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 2,090 residents · Montana
What's In Stevensville's Tap Water?
2
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.39 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
6
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: September 1, 2023 – September 30, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – July 12, 2023Enforcement: 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: October 1, 2022 – October 31, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2022 – August 11, 2022Enforcement: 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: January 1, 2022 – February 16, 2020Rule: 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 20, 2023Rule: 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
Water Utility Details
STEVENSVILLE TOWN OF
Population Served
2,090
Water Source
Groundwater
System ID
MT0000335
Frequently Asked Questions About Stevensville Water
Is Stevensville tap water safe to drink?
Stevensville, Montana tap water receives a grade of C (50/100), which is considered fair. 1 contaminant(s) exceed EPA maximum contaminant levels and 38 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Stevensville's water?
Of the 2 contaminants tested in Stevensville's water supply, the most notable include Copper (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Stevensville have any water quality violations?
Yes, Stevensville has 38 EPA violation(s) on record, with the most recent in 2023. Violation types include MON, Other, MR. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Stevensville?
Based on EPA data, using a water filter in Stevensville is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Stevensville's tap water come from?
Stevensville's drinking water is sourced from groundwater and supplied by STEVENSVILLE TOWN OF. The system serves approximately 2,090 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Stevensville's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Stevensville's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Stevensville's water compare to other cities in Montana?
Stevensville's water quality score of 50/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Montana state page to see how all cities in the state compare.
What should I do if I'm concerned about Stevensville's water quality?
If you have concerns about Stevensville's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (STEVENSVILLE TOWN OF) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.