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Water Hardness in Woodland, WA

Washington · 1 zip codes · 21 matched water systems

66 PPM
3.8 GPG
Slightly Hard
0Soft60120180300+
Estimated — Nearby Data

Dataset updated March 9, 202621 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 21 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
21 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 Woodland

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

21 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.
Longview Water Department
WA5348100
Slightly Hard
71 PPMgroundwater49,111 servedEstimated — Nearby Data
Kelso City Of
WA5338000
Soft
27 PPMsurface water15,097 servedEstimated — Nearby Data
Beacon Hill Water & Sewer District
WA5315650
Slightly Hard
71 PPMgroundwater11,969 servedEstimated — Nearby Data
Woodland City Of
WA5398200
Slightly Hard
87 PPMsurface water10,640 servedEstimated — Nearby Data
Lewis River Rv Park
WA5329521
Slightly Hard
71 PPMgroundwater347 servedEstimated — Nearby Data
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Woodland, 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 Woodland, WA.

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Frequently Asked Questions

How hard is the water in Woodland, WA?

The citywide weighted average water hardness in Woodland, WA is 66 PPM (3.8 GPG), classified as slightly hard. This is based on 21 matched water systems.

Do I need a water softener in Woodland, WA?

At 66 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Woodland, 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 Woodland, WA?

Woodland, Washington is served by 21 matched water systems across 1 zip code.

Learn More About Your Water