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Water Hardness in Cape Vincent, NY

New York · 1 zip codes · 5 matched water systems

149 PPM
8.7 GPG
Moderately Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 20265 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 5 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
5 USGS-backed sources
5 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 Cape Vincent

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

5 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.
Fort Drum
NY2212214
Hard
227 PPMsurface water34,000 servedHigh Confidence — USGS Monitoring
Watertown City
NY2202346
Soft
42 PPMsurface water27,861 servedHigh Confidence — USGS Monitoring
Cape Vincent Town Wd 1 & 5
NY2230018
Hard
212 PPMsurface water2,600 servedHigh Confidence — USGS Monitoring
Cape Vincent Village
NY2202333
Hard
212 PPMsurface water1,500 servedHigh Confidence — USGS Monitoring
Cape Vincent Town Wd 3, 4, & 6
NY2230110
Hard
212 PPMsurface water770 servedHigh Confidence — USGS Monitoring

Zip Codes in Cape Vincent, NY

What This Means For You

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

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 Cape Vincent, NY.

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Frequently Asked Questions

How hard is the water in Cape Vincent, NY?

The citywide weighted average water hardness in Cape Vincent, NY is 149 PPM (8.7 GPG), classified as moderately hard. This is based on 5 matched water systems.

Do I need a water softener in Cape Vincent, NY?

With a citywide average hardness of 149 PPM, a water softener is worth considering for homes in Cape Vincent. Confirm your tap reading before sizing equipment.

Is hard water in Cape Vincent, 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 Cape Vincent, NY?

Cape Vincent, New York is served by 5 matched water systems across 1 zip code.

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