Water Hardness in Ho Ho Kus, NJ

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

At a citywide weighted average of 82 PPM, Ho Ho Kus has relatively soft water. A water softener is generally not necessary.

Q: How many water systems serve Ho Ho Kus, NJ?

Ho Ho Kus, New Jersey has 17 matched water systems across 1 zip code.

New Jersey · 1 zip codes · 17 matched water systems

40 PPM

2.3 GPG

Soft

0Soft60120180300+

Verified — Annual Water Quality Report

City avg (weighted): 82 PPM

Dataset updated March 9, 202617 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading

Veolia Water New Jersey Hackensack

NJ0238001

Water source: surface water

Serves: 792,713

USGS environmental estimate: 169 PPM

Source context

How this city reading is built

This city reading is a weighted rollup across 17 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis

5 verified treated-water sources

17 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 Ho Ho Kus

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

17 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
Veolia Water New Jersey Hackensack NJ0238001	surface water	40 PPM Soft USGS estimate: 169 PPM	792,713	Verified — Annual Water Quality Report
Ridgewood Water NJ0251001	surface water	250 PPM Very Hard USGS estimate: 169 PPM	61,700	Verified — Annual Water Quality Report
Fair Lawn Water Dept NJ0217001	surface water	169 PPM Moderately Hard	34,947	High Confidence — USGS Monitoring
Garfield Water Department NJ0221001	surface water	169 PPM Moderately Hard	30,487	High Confidence — USGS Monitoring
Mahwah Water Department NJ0233001	surface water	118 PPM Slightly Hard	26,777	High Confidence — USGS Monitoring

Veolia Water New Jersey Hackensack

NJ0238001

Soft

40 PPMsurface water792,713 servedVerified — Annual Water Quality Report

Source water: 169 PPM

Ridgewood Water

NJ0251001

Very Hard

250 PPMsurface water61,700 servedVerified — Annual Water Quality Report

Source water: 169 PPM

Fair Lawn Water Dept

NJ0217001

Moderately Hard

169 PPMsurface water34,947 servedHigh Confidence — USGS Monitoring

Garfield Water Department

NJ0221001

Moderately Hard

169 PPMsurface water30,487 servedHigh Confidence — USGS Monitoring

Mahwah Water Department

NJ0233001

Slightly Hard

118 PPMsurface water26,777 servedHigh Confidence — USGS Monitoring

Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Ho Ho Kus, NJ

0742382

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 Ho Ho Kus, NJ.

Submit Your Data

Frequently Asked Questions

How hard is the water in Ho Ho Kus, NJ?

The citywide weighted average water hardness in Ho Ho Kus, NJ is 82 PPM (4.8 GPG), classified as slightly hard. This is based on 17 matched water systems. The gauge highlights Veolia Water New Jersey Hackensack, a verified treated-water system, because individual systems can differ from the citywide average.

Do I need a water softener in Ho Ho Kus, NJ?

At 82 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Ho Ho Kus, 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 Ho Ho Kus, NJ?

Ho Ho Kus, New Jersey is served by 17 matched water systems across 1 zip code.

Learn More About Your Water

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