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City water profile

Black Eagle water quality

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

Median indexed hardness

164PPM

One indexed ZIP

Range 164–164 PPM

State comparison
42 PPM above
State hardness rank
#50 of 117
Matched utilities
3
Active health records
0

City summary

What the indexed records say

Black Eagle has 1 published ZIP profile across Cascade County. The indexed median is 164 PPM, compared with 122 PPM across Montana.

Among the 117 Montanacities with an indexed median, Black Eagle ranks #50from 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

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
53.1 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: May 26, 2022 to Sep 18, 2024.

ZIP directory

Water reports in Black Eagle

Open a ZIP for site-level provenance and measurements.

ZIP code

59414

Hard

164 PPM

Nearest site
53.1 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Black Eagle Cascade County Water Sewer

PWSID MT0000157

Surface water
System population served
1,233
Last reported
Jun 29, 2026

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

Homestead Acres County Water And Sewer

PWSID MT0000526

Groundwater
System population served
500
Last reported
Jun 29, 2026

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

Windy Acres Wua

PWSID MT0002806

Groundwater
System population served
50
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
Revised Total Coliform RuleMT0000526Aug 4, 2023Resolved · health-based
Consumer Confidence RuleMT0000526Jul 1, 2023Resolved
E. COLIMT0000526Jun 21, 2023Resolved
ArsenicMT0002806Apr 1, 2023Resolved

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 Black Eagle

Is the water hard?

The indexed city median is 164 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.