WH

Water Hardness in La Selva Beach, CA

California · 1 zip codes · 25 matched water systems

260 PPM
15.2 GPG
Very Hard
0Soft60120180300+
Verified — State Lab Tested

City avg (weighted): 215 PPM

Dataset updated March 9, 202625 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Santa Cruz Water Department
CA4410010
Water source: surface water
Source year: 2024
Serves: 94,626
USGS environmental estimate: 216 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 25 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
4 verified treated-water sources
25 matched systems total for this city; 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 in La Selva Beach

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

25 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.
Santa Cruz Water Department
CA4410010
Very Hard
260 PPMsurface water94,626 servedVerified — State Lab Tested
Source water: 216 PPM
Watsonville, City Of
CA4410011
Hard
195 PPMsurface water65,231 servedHigh Confidence — USGS Monitoring
Soquel Creek Water District
CA4410017
Hard
216 PPMsurface water40,809 servedHigh Confidence — USGS Monitoring
San Lorenzo Valley Water Dist
CA4410014
Soft
46 PPMsurface water21,145 servedVerified — State Lab Tested
Source water: 127 PPM
Scotts Valley Water District
CA4410013
Hard
230 PPMgroundwater11,197 servedVerified — State Lab Tested
Source water: 216 PPM
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in La Selva Beach, CA

What This Means For You

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

Very Hard Water - Treatment Strongly Recommended

Your water is very hard. Without treatment, you can expect significant scale buildup in pipes and appliances, higher energy bills from reduced water heater efficiency, and persistent issues with skin and hair dryness.

Recommended Products

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | How to Test Your 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 La Selva Beach, CA.

Submit Your Data

Frequently Asked Questions

How hard is the water in La Selva Beach, CA?

The citywide weighted average water hardness in La Selva Beach, CA is 215 PPM (12.5 GPG), classified as hard. This is based on 25 matched water systems. The gauge highlights Santa Cruz Water Department, a verified treated-water system, because individual systems can differ from the citywide average.

Do I need a water softener in La Selva Beach, CA?

With a citywide average hardness of 215 PPM, a water softener is recommended for homes in La Selva Beach. Confirm your tap reading before sizing equipment.

Is hard water in La Selva Beach, 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 La Selva Beach, CA?

La Selva Beach, California is served by 25 matched water systems across 1 zip code.

Learn More About Your Water