Water Hardness in Antwerp, NY

New York · 1 zip codes · 3 matched water systems

145 PPM
8.5 GPG
Moderately Hard
0Soft60120180300+
High Confidence - USGS Monitoring

Dataset updated March 9, 20263 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

City report

Is Antwerp, NY Water Hard or Soft?

The citywide weighted average water hardness in Antwerp, NY is 145 PPM (8.5 GPG), classified as moderately hard. Individual systems, ZIP codes, and private wells can differ.

Displayed reading
145 PPM
Moderately Hard
Local coverage
1 ZIP
3 matched water systems
Source label
USGS monitoring
High Confidence - USGS Monitoring

Water hardness is not a drinking-water safety score. It measures calcium and magnesium minerals, and address-level results can shift by pressure zone, supply blend, building plumbing, or private well.

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 Antwerp

These systems are matched to Antwerp, 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.
Fort Drum
NY2212214
Hard
227 PPMsurface water34,000 servedHigh Confidence - USGS Monitoring
Soft
42 PPMsurface water27,861 servedHigh Confidence - USGS Monitoring
Hard
198 PPMgroundwater900 servedHigh Confidence - USGS Monitoring

Zip Codes in Antwerp, NY

What This Means For You

Use this city reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing 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 Antwerp, NY.

Submit Your Data

Frequently Asked Questions

How hard is the water in Antwerp, NY?

The citywide weighted average water hardness in Antwerp, NY is 145 PPM (8.5 GPG), classified as moderately hard. This is based on 3 matched water systems.

Do I need a water softener in Antwerp, NY?

With a citywide average hardness of 145 PPM, a water softener is worth considering for homes in Antwerp. Confirm your tap reading before sizing equipment.

Is hard water in Antwerp, 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 Antwerp, NY?

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

Learn More About Your Water