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Water Hardness in 96130

Susanville, California · Lassen County

53 PPM
3.1 GPG
Soft
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 7 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 7 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
7 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 96130

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.

7 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 Susanville
CA1810001
Soft
52 PPMgroundwater7,811 servedHigh Confidence — USGS Monitoring
Cdcr-High Desert State Prison
CA1805004
Soft
55 PPMgroundwater3,857 servedEstimated — County Avg
Leavitt Lake Csd
CA1810004
Soft
52 PPMgroundwater950 servedHigh Confidence — USGS Monitoring
Lake Forest Mutual W.C.
CA1800511
Soft
52 PPMgroundwater565 servedHigh Confidence — USGS Monitoring
Spaulding Eagle Lake Mwc
CA1800534
Soft
52 PPMgroundwater317 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

96128559611455961175596132559612355

What This Means For You

Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

Your Water Is Soft

Your water hardness is in the soft range. You likely don't need a water softener. Enjoy your naturally soft water!

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 Susanville, CA (96130).

Submit Your Data

Frequently Asked Questions

Is the water hard in Susanville, CA (96130)?

The average water hardness in 96130 is 53 PPM (3.1 GPG), which is classified as soft.

Do I need a water softener in 96130?

At 53 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 96130 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 96130?

Zip code 96130 in Susanville, California is served by 7 water systems.

Learn More About Your Water

Water Hardness Scale: PPM and GPG Chart

Use the USGS water hardness scale to compare PPM, GPG, and mg/L levels from soft to very hard water.

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How to Test Water Hardness at Home

Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.

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