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Water Hardness in Dallesport, WA

Washington · 1 zip codes · 4 matched water systems

113 PPM
6.6 GPG
Slightly Hard
0Soft60120180300+
Estimated — Nearby Data

Dataset updated March 9, 20264 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

Source context

How this city reading is built

This city reading is a weighted rollup across 4 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
4 estimated sources
This city reading needs local confirmation before equipment sizing or purchase decisions.
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 in Dallesport

These systems are matched to Dallesport, WA. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

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.
Dallesport Water District
WA5317715
Slightly Hard
113 PPMgroundwater598 servedEstimated — Nearby Data
Murdock Water
WA5300682
Slightly Hard
113 PPMgroundwater233 servedEstimated — Nearby Data
Mountain View Association
WA5320527
Slightly Hard
113 PPMgroundwater60 servedEstimated — Nearby Data
Dallesport Domestic Water Sharers
WA5315077
Slightly Hard
113 PPMgroundwater32 servedEstimated — Nearby Data

Zip Codes in Dallesport, WA

What This Means For You

Recommendations are based on the displayed 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

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 Dallesport, WA.

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Frequently Asked Questions

How hard is the water in Dallesport, WA?

The citywide weighted average water hardness in Dallesport, WA is 113 PPM (6.6 GPG), classified as slightly hard. This is based on 4 matched water systems.

Do I need a water softener in Dallesport, WA?

At 113 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Dallesport, WA 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 Dallesport, WA?

Dallesport, Washington is served by 4 matched water systems across 1 zip code.

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