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City water profile

Stevensville water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Stevensville, Montana.

Median indexed hardness

124PPM

One indexed ZIP

Range 124–124 PPM

State comparison
2 PPM above
State hardness rank
#58 of 117
Matched utilities
3
Active health records
1

City summary

What the indexed records say

Stevensville has 1 published ZIP profile across Ravalli County. The indexed median is 124 PPM, compared with 122 PPM across Montana.

Among the 117 Montanacities with an indexed median, Stevensville ranks #58from highest to lowest. Across all 145 state ZIP profiles, available estimates run from 0.2to 799.5 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard1 ZIP
Very hard0 ZIPs

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
24.4 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Mar 4, 2016 to Jun 9, 2026.

ZIP directory

Water reports in Stevensville

Open a ZIP for site-level provenance and measurements.

ZIP code

59870

Hard

124 PPM

Nearest site
24.4 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Stevensville Town Of

PWSID MT0000335

Groundwater
System population served
2,090
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Kootenai Creek Village

PWSID MT0004241

Groundwater
System population served
175
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Mountain Shadows Estates Stevensville

PWSID MT0002132

Groundwater
System population served
55
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

1 unique active health-based record appears among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Revised Total Coliform RuleMT0002132Dec 13, 2025Unaddressed · health-based
Revised Total Coliform RuleMT0000335Sep 1, 2023Resolved
Consumer Confidence RuleMT0000335Jul 1, 2023Resolved
Revised Total Coliform RuleMT0000335Oct 1, 2022Resolved
E. COLIMT0002132Sep 20, 2022Resolved
Consumer Confidence RuleMT0000335Jul 1, 2022Resolved
Revised Total Coliform RuleMT0000335Jan 1, 2022Resolved
Lead and Copper RuleMT0000335Dec 30, 2021Resolved

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Stevensville

Is the water hard?

The indexed city median is 124 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.