WH

Water Hardness in 85940

Vernon, Arizona · Apache County

175 PPM
10.2 GPG
Moderately Hard
0Soft60120180300+
High Confidence — USGS Monitoring

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
3 USGS-backed sources
5 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.
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 85940

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.
Cedar Grove Water Company
AZ0401049
Hard
183 PPMgroundwater1,564 servedEstimated — County Avg
Lord Az Water 2 - Winchester Trails
AZ0401047
Hard
183 PPMgroundwater1,304 servedEstimated — County Avg
Timber Knoll Dwid
AZ0401015
Slightly Hard
76 PPMgroundwater153 servedHigh Confidence — USGS Monitoring
Ojo Bonito Estates Dwid
AZ0401039
Slightly Hard
76 PPMgroundwater54 servedHigh Confidence — USGS Monitoring
Show Low Crossroads Hoa
AZ0401372
Slightly Hard
76 PPMgroundwater38 servedHigh Confidence — USGS Monitoring

Nearby Zip Codes

What This Means For You

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

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 Vernon, AZ (85940).

Submit Your Data

Frequently Asked Questions

Is the water hard in Vernon, AZ (85940)?

The average water hardness in 85940 is 175 PPM (10.2 GPG), which is classified as moderately hard.

Do I need a water softener in 85940?

With hardness of 175 PPM, a water softener is worth considering for homes in 85940.

Is hard water in 85940 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 85940?

Zip code 85940 in Vernon, Arizona is served by 5 water systems.

Learn More About Your Water