Where does the water in 23130 come from?

Water for zip code 23130 in Onemo, Virginia is provided by 1 water system. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 23130

Onemo, Virginia · Mathews County

65 PPM

3.8 GPG

Slightly Hard

0Soft60120180300+

Verified — Annual Water Quality Report

Dataset updated March 9, 2026Matched to 1 water systemTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 1 matched water system. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis

1 verified treated-water source

1 matched system total for this ZIP; 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 Serving 23130

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.

1 water system

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.

Water System	Source	Hardness	Pop. Served	Data Source
Virginia Beach, City Of VA3810900	surface water	65 PPM Slightly Hard USGS estimate: 139 PPM	437,994	Verified — Annual Water Quality Report

Virginia Beach, City Of

VA3810900

Slightly Hard

65 PPMsurface water437,994 servedVerified — Annual Water Quality Report

Source water: 139 PPM

Nearby Zip Codes

2304565 2316365 2313865 2311965 2310941 2302565 2302165 2307665 2305665 2306665 2306865 2312865

What This Means For You

Recommendations are based on the displayed ZIP 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

Water Hardness Test Kit

Our PickVarify (150 Strips)Also GreatJNW Direct (150 Strips)

Salt-Free Water Conditioner

Our PickSpringWell Salt-Free Cartridge

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 Onemo, VA (23130).

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Frequently Asked Questions

Is the water hard in Onemo, VA (23130)?

The average water hardness in 23130 is 65 PPM (3.8 GPG), which is classified as slightly hard.

Do I need a water softener in 23130?

At 65 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 23130 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 23130?

Zip code 23130 in Onemo, Virginia is served by 1 water system.