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Water Hardness in Granville, NY

New York · 1 zip codes · 3 matched water systems

188 PPM
11 GPG
Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 20263 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 3 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
3 USGS-backed sources
3 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 Granville

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

3 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.
Granville Village
NY5700120
Moderately Hard
158 PPMsurface water2,450 servedHigh Confidence — USGS Monitoring
Washington Correctional
NY5704191
Very Hard
276 PPMsurface water1,134 servedHigh Confidence — USGS Monitoring
North Granville Wd #1
NY5700121
Moderately Hard
158 PPMsurface water800 servedHigh Confidence — USGS Monitoring

Zip Codes in Granville, 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 Granville, NY.

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Frequently Asked Questions

How hard is the water in Granville, NY?

The citywide weighted average water hardness in Granville, NY is 188 PPM (11 GPG), classified as hard. This is based on 3 matched water systems.

Do I need a water softener in Granville, NY?

With a citywide average hardness of 188 PPM, a water softener is recommended for homes in Granville. Confirm your tap reading before sizing equipment.

Is hard water in Granville, 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 Granville, NY?

Granville, New York is served by 3 matched water systems across 1 zip code.

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