Water Hardness in 10986
Tomkins Cove, New York · Rockland County
Dataset updated March 9, 2026Matched to 5 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 5 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 10986
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 |
|---|---|---|---|
| Veolia Water New York NY4303673 | surface water | 203 PPM Hard | |
| Nyack Village Water Supply NY4303666 | surface water | 203 PPM Hard | |
| Suffern Village NY4303675 | groundwater | 215 PPM Hard | |
| Bear Mountain Water Supply NY4317681 | surface water | 7 PPM Soft | |
| Hill N Dale Trailer Park NY3501325 | groundwater | 32 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 Tomkins Cove, NY (10986).
Frequently Asked Questions
Is the water hard in Tomkins Cove, NY (10986)?
The average water hardness in 10986 is 201 PPM (11.8 GPG), which is classified as hard.
Do I need a water softener in 10986?
With hardness of 201 PPM, a water softener is recommended for homes in 10986.
Is hard water in 10986 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 10986?
Zip code 10986 in Tomkins Cove, New York is served by 5 water systems.
Learn More About Your Water
How to Test Water Hardness at Home
Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.
8 min readWater Hardness Scale: PPM and GPG Chart
Use the USGS water hardness scale to compare PPM, GPG, and mg/L levels from soft to very hard water.
10 min readWell Water Hardness: Why It's Usually Hard & How to Treat It
Well water is almost always harder than city water. Learn why, how to test your well, and the best treatment options for hard well water.
8 min read