Water Hardness in Cromberg, CA

California · 1 zip codes · 4 matched water systems

19 PPM
1.1 GPG
Soft
0Soft60120180300+
Verified - State Lab Tested

City avg (weighted): 39 PPM

Dataset updated March 9, 20264 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Plumas Eureka Csd
CA3210011
Water source: groundwater
Source year: 2023
Serves: 1,534
USGS environmental estimate: 71 PPM
City report

Is Cromberg, CA Water Hard or Soft?

The displayed hardness for Cromberg, CA is 19 PPM (1.1 GPG) from Plumas Eureka Csd, classified as soft. The citywide weighted average is 39 PPM.

Displayed reading
19 PPM
Soft
Local coverage
1 ZIP
4 matched water systems
Source label
California treated-water report
Verified - State Lab Tested

Water hardness is not a drinking-water safety score. It measures calcium and magnesium minerals, and address-level results can shift by pressure zone, supply blend, building plumbing, or private well.

Source context

How this city reading is built

This city reading is a weighted rollup across 4 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
2 verified treated-water sources
4 matched systems total for this city; treated-water reports are prioritized when available.
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
Report years 2023-2024
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 Cromberg

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

4 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.
Soft
19 PPMgroundwater1,534 servedVerified - State Lab Tested
Source water: 71 PPM
Slightly Hard
71 PPMgroundwater741 servedHigh Confidence - USGS Monitoring
42 PPMsurface water737 servedVerified - State Lab Tested
Source water: 60 PPM
Slightly Hard
71 PPMgroundwater200 servedHigh Confidence - USGS Monitoring

Zip Codes in Cromberg, CA

What This Means For You

Use this city reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing 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 Cromberg, CA.

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Frequently Asked Questions

How hard is the water in Cromberg, CA?

The citywide weighted average water hardness in Cromberg, CA is 39 PPM (2.3 GPG), classified as soft. This is based on 4 matched water systems. The gauge highlights Plumas Eureka Csd, a verified treated-water system, because individual systems can differ from the citywide average.

Do I need a water softener in Cromberg, CA?

At 39 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Cromberg, 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 Cromberg, CA?

Cromberg, California is served by 4 matched water systems across 1 zip code.

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