Water Hardness in Martinsville, NJ

Q: Do I need a water softener in Martinsville, NJ?

At a citywide weighted average of 49 PPM, Martinsville has relatively soft water. A water softener is generally not necessary.

Q: How many water systems serve Martinsville, NJ?

Martinsville, New Jersey has 4 matched water systems across 1 zip code.

New Jersey · 1 zip codes · 4 matched water systems

40 PPM

2.3 GPG

Soft

0Soft60120180300+

Verified — Annual Water Quality Report

City avg (weighted): 49 PPM

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

System used for this reading

Nj American Water - Short Hills

NJ0712001

Water source: surface water

Serves: 217,230

USGS environmental estimate: 188 PPM

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 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 in Martinsville

These systems are matched to Martinsville, NJ. 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.

Water System	Source	Hardness	Pop. Served	Data Source
Nj American Water - Short Hills NJ0712001	surface water	40 PPM Soft USGS estimate: 188 PPM	217,230	Verified — Annual Water Quality Report
Franklin Township Dept Of Public Works NJ1808001	surface water	70 PPM Slightly Hard	57,150	High Confidence — USGS Monitoring
South Brunswick Twp W Di NJ1221004	surface water	60 PPM Slightly Hard USGS estimate: 183 PPM	45,450	Verified — Annual Water Quality Report
Rocky Hill W Dept NJ1817001	groundwater	183 PPM Hard	687	Estimated — County Avg

Nj American Water - Short Hills

NJ0712001

Soft

40 PPMsurface water217,230 servedVerified — Annual Water Quality Report

Source water: 188 PPM

Franklin Township Dept Of Public Works

NJ1808001

Slightly Hard

70 PPMsurface water57,150 servedHigh Confidence — USGS Monitoring

South Brunswick Twp W Di

NJ1221004

Slightly Hard

60 PPMsurface water45,450 servedVerified — Annual Water Quality Report

Source water: 183 PPM

Rocky Hill W Dept

NJ1817001

Hard

183 PPMgroundwater687 servedEstimated — County Avg

Zip Codes in Martinsville, NJ

0883649

What This Means For You

Recommendations are based on the displayed 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 Martinsville, NJ.

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Frequently Asked Questions

How hard is the water in Martinsville, NJ?

The citywide weighted average water hardness in Martinsville, NJ is 49 PPM (2.8 GPG), classified as soft. This is based on 4 matched water systems. The gauge highlights Nj American Water - Short Hills, a verified treated-water system, because individual systems can differ from the citywide average.

Do I need a water softener in Martinsville, NJ?

At 49 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Martinsville, NJ 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 Martinsville, NJ?

Martinsville, New Jersey is served by 4 matched water systems across 1 zip code.

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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