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Water Hardness in 98524

Allyn, Washington · Mason County

51 PPM
3 GPG
Soft
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
5 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 98524

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.
Shelton City Of
WA5378170
Soft
49 PPMgroundwater17,575 servedHigh Confidence — USGS Monitoring
Lakeland Village Water
WA5345090
Slightly Hard
63 PPMgroundwater2,120 servedHigh Confidence — USGS Monitoring
Enchanted Firs Mobile Estates
WA5323380
Slightly Hard
63 PPMgroundwater120 servedHigh Confidence — USGS Monitoring
Peninsula Mobile Park
WA5366914
Slightly Hard
63 PPMgroundwater92 servedHigh Confidence — USGS Monitoring
Lakewood Manor Association
WA5345400
Slightly Hard
63 PPMgroundwater42 servedHigh Confidence — USGS Monitoring

Nearby Zip Codes

983941598329159854649985284898349159836764985884998351159833515983331598332169859248

What This Means For You

Recommendations are based on the displayed ZIP 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 Allyn, WA (98524).

Submit Your Data

Frequently Asked Questions

Is the water hard in Allyn, WA (98524)?

The average water hardness in 98524 is 51 PPM (3 GPG), which is classified as soft.

Do I need a water softener in 98524?

At 51 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 98524 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 98524?

Zip code 98524 in Allyn, Washington is served by 5 water systems.

Learn More About Your Water

Water Hardness Scale: PPM and GPG Chart

Use the USGS water hardness scale to compare PPM, GPG, and mg/L levels from soft to very hard water.

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How to Test Water Hardness at Home

Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.

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