Water Hardness in 06412
Chester, Connecticut · Middlesex County
Dataset updated March 9, 2026Matched to 4 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 4 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.
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 Serving 06412
These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.
| Water System | Source | Hardness | Pop. Served |
|---|---|---|---|
| Middletown Water Department CT0830011 | surface water | 106 PPM Slightly Hard | |
| Cromwell Fire District Water Department CT0330011 | groundwater | 102 PPM Slightly Hard | |
| Ctwc - Shoreline Region-Chester System CT0261031 | surface water | 21 PPM Soft | |
| Aaron Manor Nursing & Rehab Center CT0261001 | groundwater | 19 PPM Soft |
Nearby Zip Codes
What This Means For You
Use this ZIP 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 Chester, CT (06412).
Frequently Asked Questions
Is the water hard in Chester, CT (06412)?
The average water hardness in 06412 is 98 PPM (5.7 GPG), which is classified as slightly hard.
Do I need a water softener in 06412?
At 98 PPM, your water is relatively soft. A water softener is generally not necessary.
Is hard water in 06412 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 06412?
Zip code 06412 in Chester, Connecticut is served by 4 water systems.
Learn More About Your Water
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