Water Hardness in Barrington, NH
New Hampshire · 1 zip codes · 9 matched water systems
Dataset updated March 9, 20269 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology
How this city reading is built
This city reading is a weighted rollup across 9 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.
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 Barrington
These systems are matched to Barrington, NH. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.
| Water System | Source | Hardness | Pop. Served |
|---|---|---|---|
Dover Water Dept NH0651010 | groundwater | 163 PPM Moderately Hard | |
Rochester Water Dept NH2001010 | surface water | 23 PPM Soft | |
Unh/Durham Water Sys NH0691010 | surface water | 126 PPM Moderately Hard | |
Somersworth Water Works NH2151010 | surface water | 23 PPM Soft | |
Emerald Acres NH0153060 | groundwater | 163 PPM Moderately Hard |
Zip Codes in Barrington, NH
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 Barrington, NH.
Frequently Asked Questions
How hard is the water in Barrington, NH?
The citywide weighted average water hardness in Barrington, NH is 93 PPM (5.5 GPG), classified as slightly hard. This is based on 9 matched water systems.
Do I need a water softener in Barrington, NH?
At 93 PPM, the citywide average is relatively soft. A water softener is generally not necessary.
Is hard water in Barrington, NH 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 Barrington, NH?
Barrington, New Hampshire is served by 9 matched water systems across 1 zip code.
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 readBest Water Hardness Test Kits (2026 Reviews)
We compared test strips, liquid drop kits, TDS meters, and lab tests. Here's which testing method gives you the most accurate hardness reading.
8 min readHard Water vs Soft Water: Key Differences
Compare hard water and soft water by minerals, taste, soap lather, skin, hair, plumbing, and treatment needs.
10 min read