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Water Hardness in Arlington, NY

New York · 1 zip codes · 25 matched water systems

139 PPM
8.1 GPG
Moderately Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 202625 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 25 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
22 USGS-backed sources
25 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 Arlington

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

25 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.
Poughkeepsie Townwide Wd
NY1302812
Moderately Hard
151 PPMsurface water43,000 servedHigh Confidence — USGS Monitoring
Poughkeepsie City
NY1330291
Moderately Hard
143 PPMsurface water30,639 servedHigh Confidence — USGS Monitoring
Beacon City
NY1302760
Slightly Hard
105 PPMsurface water14,370 servedHigh Confidence — USGS Monitoring
United Wappinger Water Improvement Dist.
NY1330660
Slightly Hard
105 PPMsurface water14,000 servedHigh Confidence — USGS Monitoring
Hyde Park Regional
NY1302796
Moderately Hard
151 PPMsurface water6,928 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Arlington, 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 Arlington, NY.

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Frequently Asked Questions

How hard is the water in Arlington, NY?

The citywide weighted average water hardness in Arlington, NY is 139 PPM (8.1 GPG), classified as moderately hard. This is based on 25 matched water systems.

Do I need a water softener in Arlington, NY?

With a citywide average hardness of 139 PPM, a water softener is worth considering for homes in Arlington. Confirm your tap reading before sizing equipment.

Is hard water in Arlington, 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 Arlington, NY?

Arlington, New York is served by 25 matched water systems across 1 zip code.

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