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Water Hardness in 95365

Planada, California · Merced County

186 PPM
10.9 GPG
Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 6 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 6 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis
6 USGS-backed sources
6 matched systems total for this ZIP; 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 Serving 95365

These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.

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.
City Of Merced
CA2410009
Moderately Hard
152 PPMgroundwater93,692 servedHigh Confidence — USGS Monitoring
City Of Los Banos
CA2410005
Hard
233 PPMgroundwater47,419 servedHigh Confidence — USGS Monitoring
City Of Atwater
CA2410001
Hard
217 PPMgroundwater29,479 servedHigh Confidence — USGS Monitoring
City Of Livingston
CA2410004
Hard
217 PPMgroundwater14,894 servedHigh Confidence — USGS Monitoring
Planada Csd
CA2410007
Slightly Hard
106 PPMgroundwater4,164 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

What This Means For You

Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment 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 Planada, CA (95365).

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Frequently Asked Questions

Is the water hard in Planada, CA (95365)?

The average water hardness in 95365 is 186 PPM (10.9 GPG), which is classified as hard.

Do I need a water softener in 95365?

With hardness of 186 PPM, a water softener is recommended for homes in 95365.

Is hard water in 95365 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 95365?

Zip code 95365 in Planada, California is served by 6 water systems.

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