Vegas Valley Water Guide

Mesquite and Bunkerville water hardness

Mesquite and Bunkerville are supplied by the Virgin Valley Water District from nine deep wells. Hardness varies from well to well, so the district gives a range.

How hard is Mesquite water?

Figures published by Virgin Valley Water District. The dial setting is the number to enter on your softener.

City or areaHow hardRange (grains per gallon)Softener dial settingSource
Mesquite and BunkervilleVery hard10.5 to 15.814Virgin Valley Water District, annual water quality report, 2025 (2025 data)

1. How many people live in your home?

the number your kit shows, in grains per gallon
Your water is
Very hardAbout 150 lb of minerals flow into your home each year
Softener size to buy
24,000-grain
the size number on the box
Salt it will use
About 9
40 lb bags a year
Set the hardness dial to
14
recharges about every 8 days

What the dial setting means

This is the number to key into your softener's control head (the box on top of the tank) where it asks for water hardness, often shown as "Hardness" or "gpg". It is how the softener knows how much hardness it is taking out of each gallon.

When the resin inside is full of minerals, the softener recharges: it washes the resin with brine from the salt tank and sends the minerals down the drain. For your household that works out to about every 8 days, and it happens automatically.

Too low a number lets hard water through between recharges. Too high a number makes it recharge sooner than it needs to, using extra salt and water.

Mesquite's water comes from several wells, so hardness varies; we use the middle of the range. Source: Virgin Valley Water District, annual water quality report, 2025 (2025 data).

Nobody pays to be listed or ranked here, and we don't make, sell, rent or install softeners or filters.

How this figure was measured

Who published it

Water authority
Virgin Valley Water District
About the authority
The public water district that supplies Mesquite and Bunkerville. A public agency; no company supplied or paid for this figure.
Type of source
Annual water quality report. Every community water system in the U.S. must publish one each year under the federal Safe Drinking Water Act, so it is the utility’s own official record of what is in its water.
Data year
2025 (2025 data)
Last checked
16 October 2026, against the original document

What the figure is

What was measured
Hardness, in mg/L and grains per gallon: 10.5 to 15.8 grains per gallon (180 to 270 mg/L)
Area covered
The whole Mesquite water system
How it was sampled
The range across the district's nine deep wells, each tested on its own schedule. The district gives it as 180 to 270 mg/L, or 10 to 16 grains per gallon.
Where the water comes from
Nine deep wells in the lower Virgin River basin, 640 to 2,020 feet deep.

How we use it

Figure we use
Middle of the published range (13.2 grains per gallon).
Unit conversion
1 grain per gallon = 17.1 milligrams per litre (mg/L), the same as parts per million (ppm)
How we calculate
Daily hardness to remove = people × 75 gallons × grains per gallon. We pick the smallest standard size that lasts about 7 days between recharges, at 3,300 grains removed per pound of salt.
Limits
Hardness varies by street and by season as utilities switch between water sources. A home test result is more exact and overrides this figure.

Nine wells, one range

The district’s report gives a range across its wells rather than one average: 180 to 270 mg/L of hardness, which it also lists as 10 to 16 grains per gallon. Other minerals vary too: sodium 39 to 150 mg/L and total dissolved solids 340 to 680 mg/L.

Sizing in Mesquite

Your water Three people Four people Five people
About 10 gpg 24,000 grains 24,000 grains 32,000 grains
About 13 gpg (middle) 24,000 grains 32,000 grains 40,000 grains
About 16 gpg 32,000 grains 40,000 grains 48,000 grains

A home test kit tells you which row you’re in.

Not Las Vegas water

Mesquite’s water doesn’t come from Lake Mead, and the Virgin Valley Water District is separate from the Las Vegas Valley Water District. Use this page’s figures, not the valley’s 16, when you size or set a softener.

Questions about Mesquite water

How hard is Mesquite water?
The Virgin Valley Water District's 2025 annual report gives hardness of 180 to 270 mg/L, or 10 to 16 grains per gallon, across its wells.
Where does Mesquite's water come from?
From nine deep wells in the lower Virgin River basin, between 640 and 2,020 feet deep, according to the district's report.
Does Mesquite water have a lot of sodium?
It varies by well: the district reports 39 to 150 mg/L of sodium. Softening adds more, so households watching sodium may want potassium chloride or a reverse osmosis drinking tap.