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City water profile

Ryegate water quality

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

Median indexed hardness

87PPM

One indexed ZIP

Range 86.5–86.5 PPM

State comparison
35 PPM below
State hardness rank
#73 of 117
Matched utilities
2
Active health records
0

City summary

What the indexed records say

Ryegate has 1 published ZIP profile across Golden Valley County. The indexed median is 87 PPM, compared with 122 PPM across Montana.

Among the 117 Montanacities with an indexed median, Ryegate ranks #73from 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 hard1 ZIP
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
52.2 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Mar 4, 2017 to Sep 10, 2025.

ZIP directory

Water reports in Ryegate

Open a ZIP for site-level provenance and measurements.

ZIP code

59074

Moderately Hard

86.5 PPM

Nearest site
52.2 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Ryegate Town Of

PWSID MT0000322

Groundwater
System population served
270
Last reported
Jun 29, 2026

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

Golden Valley Colony

PWSID MT0001580

Groundwater
System population served
100
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
Groundwater RuleMT0000322Jan 1, 2025Resolved
TTHMMT0000322Jan 1, 2025Resolved
Total Haloacetic Acids (HAA5)MT0000322Jan 1, 2025Resolved
Lead and Copper RuleMT0000322Oct 1, 2024Resolved
Groundwater RuleMT0000322Jul 1, 2024Resolved · health-based
Groundwater RuleMT0000322Feb 1, 2024Resolved
Groundwater RuleMT0000322Dec 1, 2022Resolved · health-based
Groundwater RuleMT0000322Feb 1, 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 Ryegate

Is the water hard?

The indexed city median is 87 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.