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Water Hardness in Ames, IA

Iowa · 2 zip codes · 5 matched water systems

200 PPM
11.7 GPG
Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 200 PPM

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

System used for this reading
Ames Water Treatment Plant
IA8503039
Water source: groundwater
Serves: 55,177
USGS environmental estimate: 379 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 5 matched water systems and 2 ZIP codes. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
5 verified treated-water sources
5 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 Ames

These systems are matched to Ames, IA. 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.
Ames Water Treatment Plant
IA8503039
Hard
200 PPMgroundwater55,177 servedVerified — Annual Water Quality Report
Source water: 379 PPM
Isu
IA8503528
Hard
200 PPMgroundwater42,000 servedVerified — Annual Water Quality Report
Source water: 356 PPM
Ia Regional Utilities Assoc (Waverly)
IA0990701
Hard
200 PPMgroundwater37,820 servedVerified — Annual Water Quality Report
Source water: 380 PPM
Logansport Water System
IA0837701
Hard
200 PPMsurface water190 servedVerified — Annual Water Quality Report
Source water: 334 PPM
Benefit Water District #2
IA0819305
Hard
200 PPMsurface water100 servedVerified — Annual Water Quality Report
Source water: 334 PPM

Zip Codes in Ames, 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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If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Ames, IA.

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Frequently Asked Questions

How hard is the water in Ames, IA?

The citywide weighted average water hardness in Ames, IA is 200 PPM (11.7 GPG), classified as hard. This is based on 5 matched water systems.

Do I need a water softener in Ames, IA?

With a citywide average hardness of 200 PPM, a water softener is recommended for homes in Ames. Confirm your tap reading before sizing equipment.

Is hard water in Ames, 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 Ames, IA?

Ames, Iowa is served by 5 matched water systems across 2 zip codes.

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