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Water Hardness in Shelton, WA

Washington · 1 zip codes · 25 matched water systems

49 PPM
2.9 GPG
Soft
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 202625 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 25 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
25 USGS-backed sources
25 matched systems total for this city; 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 in Shelton

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

25 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.
Shelton City Of
WA5378170
Soft
49 PPMgroundwater17,575 servedHigh Confidence — USGS Monitoring
Timberlake Community Club Inc
WA5388370
Soft
49 PPMgroundwater2,337 servedHigh Confidence — USGS Monitoring
Washington Corrections Center
WA5393063
Soft
49 PPMgroundwater2,223 servedHigh Confidence — USGS Monitoring
Lake Limerick Water
WA5344150
Soft
49 PPMgroundwater2,148 servedHigh Confidence — USGS Monitoring
Sunnyslope
WA5385550
Soft
49 PPMgroundwater2,112 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Shelton, WA

What This Means For You

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

Your Water Is Soft

Your water hardness is in the soft range. You likely don't need a water softener. Enjoy your naturally soft 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 Shelton, WA.

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Frequently Asked Questions

How hard is the water in Shelton, WA?

The citywide weighted average water hardness in Shelton, WA is 49 PPM (2.9 GPG), classified as soft. This is based on 25 matched water systems.

Do I need a water softener in Shelton, WA?

At 49 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Shelton, 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 Shelton, WA?

Shelton, Washington is served by 25 matched water systems across 1 zip code.

Learn More About Your Water