Where does the water in 97882 come from?

Water for zip code 97882 in Mcnary, Oregon is provided by 4 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 97882

Mcnary, Oregon · Umatilla County

109 PPM

6.4 GPG

Slightly Hard

0Soft60120180300+

High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 4 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 4 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

4 USGS-backed sources

4 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.

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 97882

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.

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.

Water System	Source	Hardness	Pop. Served	Data Source
Hermiston, City Of OR4100372	surface water	176 PPM Moderately Hard	20,000	High Confidence — USGS Monitoring
Pendleton, City Of OR4100613	surface water	80 PPM Slightly Hard	16,996	High Confidence — USGS Monitoring
Umatilla, City Of OR4100914	groundwater	5 PPM Soft	8,256	High Confidence — USGS Monitoring
Power City Water Co-Op OR4100375	groundwater	5 PPM Soft	70	High Confidence — USGS Monitoring

Hermiston, City Of

OR4100372

Moderately Hard

176 PPMsurface water20,000 servedHigh Confidence — USGS Monitoring

Pendleton, City Of

OR4100613

Slightly Hard

80 PPMsurface water16,996 servedHigh Confidence — USGS Monitoring

Umatilla, City Of

OR4100914

Soft

5 PPMgroundwater8,256 servedHigh Confidence — USGS Monitoring

Power City Water Co-Op

OR4100375

Soft

5 PPMgroundwater70 servedHigh Confidence — USGS Monitoring

Nearby Zip Codes

97838133 99346197 97844118 97875135 99345197 99337197 97826133 99338197 99336197 99352197 97818152 99350203

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 Mcnary, OR (97882).

Submit Your Data

Frequently Asked Questions

Is the water hard in Mcnary, OR (97882)?

The average water hardness in 97882 is 109 PPM (6.4 GPG), which is classified as slightly hard.

Do I need a water softener in 97882?

At 109 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 97882 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 97882?

Zip code 97882 in Mcnary, Oregon is served by 4 water systems.