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Water Hardness in Frontenac, NY

New York · 1 zip codes · 5 matched water systems

148 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 Frontenac

These systems are matched to Frontenac, 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
Clayton Village
NY2202335
Very Hard
263 PPMsurface water2,100 servedHigh Confidence — USGS Monitoring
Southside Water Inc.
NY2221333
Very Hard
263 PPMsurface water195 servedHigh Confidence — USGS Monitoring
Riverwood Estates
NY2222606
Very Hard
263 PPMgroundwater30 servedHigh Confidence — USGS Monitoring

Zip Codes in Frontenac, 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 Frontenac, NY.

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Frequently Asked Questions

How hard is the water in Frontenac, NY?

The citywide weighted average water hardness in Frontenac, NY is 148 PPM (8.7 GPG), classified as moderately hard. This is based on 5 matched water systems.

Do I need a water softener in Frontenac, NY?

With a citywide average hardness of 148 PPM, a water softener is worth considering for homes in Frontenac. Confirm your tap reading before sizing equipment.

Is hard water in Frontenac, 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 Frontenac, NY?

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

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