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Water Hardness in Coarsegold, CA

California · 1 zip codes · 8 matched water systems

247 PPM
14.4 GPG
Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 20268 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 8 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
7 USGS-backed sources
8 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 Coarsegold

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

8 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.
City Of Madera
CA2010002
Very Hard
261 PPMgroundwater66,560 servedHigh Confidence — USGS Monitoring
Chowchilla City Water Dept
CA2010001
Very Hard
261 PPMgroundwater13,916 servedHigh Confidence — USGS Monitoring
Yosemite Spring Park Util Co
CA2010005
Moderately Hard
124 PPMgroundwater5,300 servedHigh Confidence — USGS Monitoring
Central Ca Womens Facility
CA2010800
Soft
56 PPMgroundwater2,183 servedHigh Confidence — USGS Monitoring
Bakman Water-Rolling Hills
CA2010009
Very Hard
261 PPMgroundwater1,107 servedEstimated — County Avg
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Coarsegold, CA

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 Coarsegold, CA.

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Frequently Asked Questions

How hard is the water in Coarsegold, CA?

The citywide weighted average water hardness in Coarsegold, CA is 247 PPM (14.4 GPG), classified as hard. This is based on 8 matched water systems.

Do I need a water softener in Coarsegold, CA?

With a citywide average hardness of 247 PPM, a water softener is recommended for homes in Coarsegold. Confirm your tap reading before sizing equipment.

Is hard water in Coarsegold, CA 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 Coarsegold, CA?

Coarsegold, California is served by 8 matched water systems across 1 zip code.

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