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Water Hardness in Wallkill, NY

New York · 1 zip codes · 10 matched water systems

200 PPM
11.7 GPG
Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 202610 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

Source context

How this city reading is built

This city reading is a weighted rollup across 10 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
10 USGS-backed sources
10 matched systems total for this city; USGS monitoring is used where treated-water reports are unavailable.
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 Wallkill

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

10 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.
Kingston (City) Water District
NY5503374
Hard
202 PPMsurface water24,000 servedHigh Confidence — USGS Monitoring
Watchtower Farms I
NY5510805
Hard
191 PPMsurface water1,800 servedHigh Confidence — USGS Monitoring
Wallkill Water District
NY5503393
Hard
191 PPMgroundwater1,500 servedHigh Confidence — USGS Monitoring
Wallkill/Shawangunk Correction
NY5510590
Hard
191 PPMsurface water1,200 servedHigh Confidence — USGS Monitoring
Squire Green Water Corporation
NY1321440
Hard
191 PPMgroundwater750 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Wallkill, NY

What This Means For You

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

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If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Wallkill, NY.

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Frequently Asked Questions

How hard is the water in Wallkill, NY?

The citywide weighted average water hardness in Wallkill, NY is 200 PPM (11.7 GPG), classified as hard. This is based on 10 matched water systems.

Do I need a water softener in Wallkill, NY?

With a citywide average hardness of 200 PPM, a water softener is recommended for homes in Wallkill. Confirm your tap reading before sizing equipment.

Is hard water in Wallkill, NY 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 Wallkill, NY?

Wallkill, New York is served by 10 matched water systems across 1 zip code.

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