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Water Hardness in Westbrook, CT

Connecticut · 1 zip codes · 3 matched water systems

73 PPM
4.3 GPG
Slightly 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 Westbrook

These systems are matched to Westbrook, CT. 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.
Middletown Water Department
CT0830011
Slightly Hard
106 PPMsurface water41,019 servedHigh Confidence — USGS Monitoring
Ctwc - Shoreline Region-Guilford System
CT0608011
Soft
21 PPMsurface water33,975 servedHigh Confidence — USGS Monitoring
Cromwell Fire District Water Department
CT0330011
Slightly Hard
102 PPMgroundwater14,316 servedHigh Confidence — USGS Monitoring

Zip Codes in Westbrook, CT

What This Means For You

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

Slightly Hard Water

Your water is slightly hard. You may notice minor spotting on dishes or a slight film on faucets. A water softener is optional but can improve water quality.

Recommended Products

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | How to Test Your Water

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 Westbrook, CT.

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Frequently Asked Questions

How hard is the water in Westbrook, CT?

The citywide weighted average water hardness in Westbrook, CT is 73 PPM (4.3 GPG), classified as slightly hard. This is based on 3 matched water systems.

Do I need a water softener in Westbrook, CT?

At 73 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Westbrook, CT 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 Westbrook, CT?

Westbrook, Connecticut is served by 3 matched water systems across 1 zip code.

Learn More About Your Water