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Water Hardness in 07009

Cedar Grove, New Jersey · Essex County

40 PPM
2.3 GPG
Soft
0Soft60120180300+
Verified — Annual Water Quality Report

Dataset updated March 9, 2026Matched to 13 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 13 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
13 verified treated-water sources
13 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
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 07009

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.

13 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.
Newark Water Department
NJ0714001
Soft
40 PPMsurface water294,274 servedVerified — Annual Water Quality Report
Source water: 188 PPM
Nj American Water - Short Hills
NJ0712001
Soft
40 PPMsurface water217,230 servedVerified — Annual Water Quality Report
Source water: 188 PPM
East Orange Water Commission
NJ0705001
Soft
40 PPMgroundwater75,000 servedVerified — Annual Water Quality Report
Source water: 295 PPM
Bloomfield Water Department
NJ0702001
Soft
40 PPMsurface water47,315 servedVerified — Annual Water Quality Report
Source water: 188 PPM
Montclair Water Bureau
NJ0713001
Soft
40 PPMsurface water40,150 servedVerified — Annual Water Quality Report
Source water: 118 PPM
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

070434007044400742441070064107013400704240075124007021400701240070284007003400700441

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 Cedar Grove, NJ (07009).

Submit Your Data

Frequently Asked Questions

Is the water hard in Cedar Grove, NJ (07009)?

The average water hardness in 07009 is 40 PPM (2.3 GPG), which is classified as soft.

Do I need a water softener in 07009?

At 40 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 07009 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 07009?

Zip code 07009 in Cedar Grove, New Jersey is served by 13 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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