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Water Hardness in Mount Holly, NC

North Carolina · 1 zip codes · 4 matched water systems

34 PPM
2 GPG
Soft
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 34 PPM

Dataset updated March 9, 20264 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Two Rivers Utilities
NC0136010
Water source: surface water
Serves: 93,877
USGS environmental estimate: 56 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 4 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
3 verified treated-water sources
4 matched systems total for this city; treated-water reports are prioritized when available.
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 Mount Holly

These systems are matched to Mount Holly, NC. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

4 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.
Two Rivers Utilities
NC0136010
Soft
34 PPMsurface water93,877 servedVerified — Annual Water Quality Report
Source water: 56 PPM
Mount Holly, City Of
NC0136020
Soft
34 PPMsurface water19,200 servedVerified — Annual Water Quality Report
Source water: 60 PPM
Belmont, City Of
NC0136015
Soft
34 PPMsurface water17,477 servedVerified — Annual Water Quality Report
Source water: 61 PPM
Windy Hill Mhp
NC0136519
Soft
31 PPMgroundwater58 servedEstimated — Nearby Data

Zip Codes in Mount Holly, NC

2812034

What This Means For You

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

Your Water Is Soft

Your water hardness is in the soft range. You likely don't need a water softener. Enjoy your naturally soft 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 Mount Holly, NC.

Submit Your Data

Frequently Asked Questions

How hard is the water in Mount Holly, NC?

The citywide weighted average water hardness in Mount Holly, NC is 34 PPM (2 GPG), classified as soft. This is based on 4 matched water systems.

Do I need a water softener in Mount Holly, NC?

At 34 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Mount Holly, NC 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 Mount Holly, NC?

Mount Holly, North Carolina is served by 4 matched water systems across 1 zip code.

Learn More About Your Water

Water 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.

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How to Test Water Hardness at Home

Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.

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