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Water Hardness in West Salem, WI

Wisconsin · 1 zip codes · 6 matched water systems

240 PPM
14 GPG
Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 242 PPM

Dataset updated March 9, 20266 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
La Crosse Waterworks
WI6320309
Water source: groundwater
Serves: 53,000
USGS environmental estimate: 272 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 6 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
3 verified treated-water sources
6 matched systems total for this city; treated-water reports are prioritized when available.
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 West Salem

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

6 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.
La Crosse Waterworks
WI6320309
Hard
240 PPMgroundwater53,000 servedVerified — Annual Water Quality Report
Source water: 272 PPM
Onalaska Waterworks
WI6320327
Hard
240 PPMgroundwater18,000 servedVerified — Annual Water Quality Report
Source water: 272 PPM
Holmen Waterworks
WI6320306
Hard
240 PPMgroundwater10,147 servedVerified — Annual Water Quality Report
Source water: 272 PPM
West Salem Waterworks
WI6320334
Very Hard
272 PPMgroundwater5,045 servedHigh Confidence — USGS Monitoring
Bostwick Valley Mhp
WI6320336
Very Hard
272 PPMgroundwater240 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in West Salem, WI

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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Frequently Asked Questions

How hard is the water in West Salem, WI?

The citywide weighted average water hardness in West Salem, WI is 242 PPM (14.2 GPG), classified as hard. This is based on 6 matched water systems. The gauge highlights La Crosse Waterworks, a verified treated-water system, because individual systems can differ from the citywide average.

Do I need a water softener in West Salem, WI?

With a citywide average hardness of 242 PPM, a water softener is recommended for homes in West Salem. Confirm your tap reading before sizing equipment.

Is hard water in West Salem, WI 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 West Salem, WI?

West Salem, Wisconsin is served by 6 matched water systems across 1 zip code.

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