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Water Hardness in Solon, IA

Iowa · 1 zip codes · 17 matched water systems

180 PPM
10.5 GPG
Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 188 PPM

Dataset updated March 9, 202617 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Iowa City Water Department
IA5225079
Water source: surface water
Serves: 68,753
USGS environmental estimate: 438 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 17 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
4 verified treated-water sources
17 matched systems total for this city; treated-water reports are prioritized when available.
Water source profile
Primarily surface water
Surface-water hardness can shift with reservoirs, runoff, season, and treatment. 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 Solon

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

17 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.
Iowa City Water Department
IA5225079
Hard
180 PPMsurface water68,753 servedVerified — Annual Water Quality Report
Source water: 438 PPM
University Water System
IA5225101
Hard
180 PPMsurface water26,684 servedVerified — Annual Water Quality Report
Source water: 438 PPM
Coralville Muni Water System
IA5208071
Hard
180 PPMgroundwater22,318 servedVerified — Annual Water Quality Report
Source water: 438 PPM
North Liberty Water Supply
IA5252072
Hard
180 PPMgroundwater20,491 servedVerified — Annual Water Quality Report
Source water: 355 PPM
Solon Water Dept
IA5282062
Very Hard
438 PPMgroundwater3,018 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Solon, IA

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 Solon, IA?

The citywide weighted average water hardness in Solon, IA is 188 PPM (11 GPG), classified as hard. This is based on 17 matched water systems. The gauge highlights Iowa City Water Department, a verified treated-water system, because individual systems can differ from the citywide average.

Do I need a water softener in Solon, IA?

With a citywide average hardness of 188 PPM, a water softener is recommended for homes in Solon. Confirm your tap reading before sizing equipment.

Is hard water in Solon, IA 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 Solon, IA?

Solon, Iowa is served by 17 matched water systems across 1 zip code.

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