WH

Water Hardness in 28543

Tarawa Terrace, North Carolina · Onslow County

30 PPM
1.8 GPG
Soft
0Soft60120180300+
Verified — Annual Water Quality Report

Dataset updated March 9, 2026Matched to 5 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

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.

Source basis
5 verified treated-water sources
5 matched systems total for this ZIP; treated-water reports are prioritized when available.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. 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 Serving 28543

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.

5 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.
Onslow Wtr And Sewer Authority
NC0467035
Soft
30 PPMgroundwater156,755 servedVerified — Annual Water Quality Report
Source water: 176 PPM
Jacksonville City Of
NC0467010
Soft
30 PPMgroundwater49,093 servedVerified — Annual Water Quality Report
Source water: 176 PPM
Usmc Lejeune--Hadnot Point
NC0467041
Soft
30 PPMgroundwater37,500 servedVerified — Annual Water Quality Report
Source water: 216 PPM
Usmc Lejeune--Holcomb Blvd
NC0467043
Soft
30 PPMgroundwater17,000 servedVerified — Annual Water Quality Report
Source water: 216 PPM
Usmc Lejeune--New River Air St
NC0467042
Soft
30 PPMgroundwater11,500 servedVerified — Annual Water Quality Report
Source water: 216 PPM

Nearby Zip Codes

2854030285443028546302854732285393028555312858230285743028454302846030285842502844537

What This Means For You

Recommendations are based on the displayed ZIP 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 Tarawa Terrace, NC (28543).

Submit Your Data

Frequently Asked Questions

Is the water hard in Tarawa Terrace, NC (28543)?

The average water hardness in 28543 is 30 PPM (1.8 GPG), which is classified as soft.

Do I need a water softener in 28543?

At 30 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 28543 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 28543?

Zip code 28543 in Tarawa Terrace, North Carolina is served by 5 water systems.

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.

10 min read

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 read