Water Hardness in 99324
College Place, Washington · Walla Walla County
Based on EPA and USGS water quality monitoring data from environmental sources (wells, streams, aquifers) near your water system. Actual tap water may differ after treatment — for precise results, test your water at home.
Our Estimate
Weighted average from 6 water systems.
What This Means For You
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 College Place, WA (99324).
Water Systems Serving 99324
Nearby Zip Codes
Frequently Asked Questions
Is the water hard in College Place, WA (99324)?
The average water hardness in 99324 is 61 PPM (3.6 GPG), which is classified as slightly hard.
Do I need a water softener in 99324?
At 61 PPM, your water is relatively soft. A water softener is generally not necessary.
How many water systems serve 99324?
Zip code 99324 in College Place, Washington is served by 6 water systems.
Learn More About Your Water
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