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City water profile

Sand Coulee water quality

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

Median indexed hardness

54PPM

One indexed ZIP

Range 53.9–53.9 PPM

State comparison
68 PPM below
State hardness rank
#87 of 117
Matched utilities
4
Active health records
0

City summary

What the indexed records say

Sand Coulee has 1 published ZIP profile across Cascade County. The indexed median is 54 PPM, compared with 122 PPM across Montana.

Among the 117 Montanacities with an indexed median, Sand Coulee ranks #87from 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. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft1 ZIP
Moderately hard0 ZIPs
Hard0 ZIPs
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
40 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Feb 26, 2016 to Feb 26, 2025.

ZIP directory

Water reports in Sand Coulee

Open a ZIP for site-level provenance and measurements.

ZIP code

59472

Soft

53.9 PPM

Nearest site
40 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Tracy Water Users Corp

PWSID MT0000345

Groundwater
System population served
200
Last reported
Jun 29, 2026

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

Sand Coulee Water Users District

PWSID MT0000325

Groundwater
System population served
180
Last reported
Jun 29, 2026

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

Big Stone Colony Inc

PWSID MT0003077

Groundwater
System population served
130
Last reported
Jun 29, 2026

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

Grassland Colony

PWSID MT0004832

Groundwater
System population served
80
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

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Lead and Copper RuleMT0000325Dec 30, 2024Unaddressed
Consumer Confidence RuleMT0000325Oct 1, 2024Unaddressed
Consumer Confidence RuleMT0000325Jul 1, 2024Unaddressed
E. COLIMT0003077May 21, 2024Resolved
Groundwater RuleMT0000325Jul 1, 2023Resolved · health-based
Lead and Copper RuleMT0000345Oct 1, 2022Resolved

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 Sand Coulee

Is the water hard?

The indexed city median is 54 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.