Water Hardness in 12563
Patterson, New York · Putnam County
Dataset updated March 9, 2026Matched to 7 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 7 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 12563
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 |
|---|---|---|---|
| Watchtower Bible Tract Society NY3921721 | groundwater | 294 PPM Very Hard | |
| Fox Run Condominiums NY3903711 | groundwater | 294 PPM Very Hard | |
| Alpine Acres Water District NY3905706 | groundwater | 294 PPM Very Hard | |
| Patterson Village Condominiums NY3903716 | groundwater | 294 PPM Very Hard | |
| Mountainview Apts NY3903710 | groundwater | 294 PPM Very Hard |
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 Patterson, NY (12563).
Frequently Asked Questions
Is the water hard in Patterson, NY (12563)?
The average water hardness in 12563 is 294 PPM (17.2 GPG), which is classified as very hard.
Do I need a water softener in 12563?
With hardness of 294 PPM, a water softener is recommended for homes in 12563.
Is hard water in 12563 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 12563?
Zip code 12563 in Patterson, New York is served by 7 water systems.
Learn More About Your Water
How to Test Water Hardness at Home
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