Water Hardness in 95358
Modesto, California · Stanislaus 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 16 water systems.
What This Means For You
Hard Water - Treatment Recommended
Your water is hard. Scale buildup is likely affecting your plumbing and appliances, reducing their lifespan and efficiency. A water softener is recommended to protect your home.
Recommended Products
Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | 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 Modesto, CA (95358).
Water Systems Serving 95358
Nearby Zip Codes
Frequently Asked Questions
Is the water hard in Modesto, CA (95358)?
The average water hardness in 95358 is 219 PPM (12.8 GPG), which is classified as hard.
Do I need a water softener in 95358?
With hardness of 219 PPM, a water softener is recommended for homes in 95358.
How many water systems serve 95358?
Zip code 95358 in Modesto, California is served by 16 water systems.
Learn More About Your Water
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