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Water Hardness in 96150

South Lake Tahoe, California · El Dorado County

17 PPM
1 GPG
Soft
0Soft60120180300+
Verified — State Lab Tested

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
2 verified treated-water sources
6 matched systems total for this ZIP; 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
Report years 2023-2025
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 96150

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.
El Dorado Id - Main
CA0910001
Soft
13 PPMsurface water132,171 servedVerified — State Lab Tested
Source water: 11 PPM
South Tahoe Pud - Main
CA0910002
Soft
21 PPMgroundwater100,000 servedVerified — State Lab Tested
Source water: 27 PPM
Lukins Brothers Water Company
CA0910007
Soft
27 PPMgroundwater3,277 servedHigh Confidence — USGS Monitoring
Lakeside Park Association
CA0910019
Soft
27 PPMsurface water2,648 servedHigh Confidence — USGS Monitoring
Tahoe Keys Water Company
CA0910015
Soft
27 PPMgroundwater1,420 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

957211695735169614216957201689449698944875961207989411838941379956462796141448970561

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 South Lake Tahoe, CA (96150).

Submit Your Data

Frequently Asked Questions

Is the water hard in South Lake Tahoe, CA (96150)?

The average water hardness in 96150 is 17 PPM (1 GPG), which is classified as soft.

Do I need a water softener in 96150?

At 17 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 96150 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 96150?

Zip code 96150 in South Lake Tahoe, California is served by 6 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.

10 min read

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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