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Water Hardness in Montana City, MT

Montana · 1 zip codes · 9 matched water systems

195 PPM
11.4 GPG
Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 20269 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

Source context

How this city reading is built

This city reading is a weighted rollup across 9 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
9 USGS-backed sources
9 matched systems total for this city; USGS monitoring is used where treated-water reports are unavailable.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems in Montana City

These systems are matched to Montana City, MT. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

9 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
Saddle Mountain Corp Clancy
MT0000057
Hard
195 PPMgroundwater350 servedHigh Confidence — USGS Monitoring
Forest Park Water Users Association
MT0000591
Hard
195 PPMgroundwater323 servedHigh Confidence — USGS Monitoring
Blue Sky Heights Wua Clancy
MT0000030
Hard
195 PPMgroundwater250 servedHigh Confidence — USGS Monitoring
Hangmans Tree Wua
MT0000128
Hard
195 PPMgroundwater158 servedHigh Confidence — USGS Monitoring
Stoney Brook Village Condominium Assoc
MT0004257
Hard
195 PPMgroundwater142 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Montana City, MT

What This Means For You

Recommendations are based on the displayed hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

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If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Montana City, MT.

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Frequently Asked Questions

How hard is the water in Montana City, MT?

The citywide weighted average water hardness in Montana City, MT is 195 PPM (11.4 GPG), classified as hard. This is based on 9 matched water systems.

Do I need a water softener in Montana City, MT?

With a citywide average hardness of 195 PPM, a water softener is recommended for homes in Montana City. Confirm your tap reading before sizing equipment.

Is hard water in Montana City, MT safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve Montana City, MT?

Montana City, Montana is served by 9 matched water systems across 1 zip code.

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