Water Hardness in Altura, MN

Minnesota · 1 zip codes · 5 matched water systems

209 PPM
12.2 GPG
Hard
0Soft60120180300+
High Confidence - USGS Monitoring

Dataset updated March 9, 20265 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

City report

Is Altura, MN Water Hard or Soft?

The citywide weighted average water hardness in Altura, MN is 209 PPM (12.2 GPG), classified as hard. Individual systems, ZIP codes, and private wells can differ.

Displayed reading
209 PPM
Hard
Local coverage
1 ZIP
5 matched water systems
Source label
USGS monitoring
High Confidence - USGS Monitoring

Water hardness is not a drinking-water safety score. It measures calcium and magnesium minerals, and address-level results can shift by pressure zone, supply blend, building plumbing, or private well.

Source context

How this city reading is built

This city reading is a weighted rollup across 5 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
4 USGS-backed sources
5 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 Altura

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

5 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.
Winona
MN1850013
Hard
207 PPMgroundwater27,782 servedHigh Confidence - USGS Monitoring
Stockton
MN1850020
Hard
207 PPMgroundwater697 servedEstimated - County Avg
Altura
MN1850018
Very Hard
300 PPMgroundwater493 servedHigh Confidence - USGS Monitoring
Elba
MN1850003
Very Hard
300 PPMgroundwater146 servedHigh Confidence - USGS Monitoring
Very Hard
300 PPMgroundwater60 servedHigh Confidence - USGS Monitoring

Zip Codes in Altura, MN

What This Means For You

Use this city reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing equipment.

Know your water hardness?

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

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Frequently Asked Questions

How hard is the water in Altura, MN?

The citywide weighted average water hardness in Altura, MN is 209 PPM (12.2 GPG), classified as hard. This is based on 5 matched water systems.

Do I need a water softener in Altura, MN?

With a citywide average hardness of 209 PPM, a water softener is recommended for homes in Altura. Confirm your tap reading before sizing equipment.

Is hard water in Altura, MN 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 Altura, MN?

Altura, Minnesota is served by 5 matched water systems across 1 zip code.

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