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Water Hardness in Ephrata, WA

Washington · 1 zip codes · 5 matched water systems

212 PPM
12.4 GPG
Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 20265 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 5 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
5 USGS-backed sources
5 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 Ephrata

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

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.
Moses Lake City Of
WA5356300
Hard
196 PPMgroundwater32,428 servedHigh Confidence — USGS Monitoring
Ephrata Water Department
WA5323650
Hard
242 PPMgroundwater8,620 servedHigh Confidence — USGS Monitoring
Crescent Bar System
WA5315950
Hard
242 PPMgroundwater1,108 servedHigh Confidence — USGS Monitoring
George City Of
WA5327395
Very Hard
412 PPMgroundwater1,035 servedHigh Confidence — USGS Monitoring
Painted Hills Water Association
WA5365640
Hard
242 PPMgroundwater70 servedHigh Confidence — USGS Monitoring

Zip Codes in Ephrata, WA

What This Means For You

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

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If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Ephrata, WA.

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Frequently Asked Questions

How hard is the water in Ephrata, WA?

The citywide weighted average water hardness in Ephrata, WA is 212 PPM (12.4 GPG), classified as hard. This is based on 5 matched water systems.

Do I need a water softener in Ephrata, WA?

With a citywide average hardness of 212 PPM, a water softener is recommended for homes in Ephrata. Confirm your tap reading before sizing equipment.

Is hard water in Ephrata, 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 Ephrata, WA?

Ephrata, Washington is served by 5 matched water systems across 1 zip code.

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