Water Hardness in 95112
San Jose, California · Santa Clara County
Based on laboratory testing of treated tap water reported to state regulators. Updated periodically with the latest compliance data.
Our Estimate
Weighted average from 25 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 San Jose, CA (95112).
Water Systems Serving 95112
Nearby Zip Codes
Frequently Asked Questions
Is the water hard in San Jose, CA (95112)?
The average water hardness in 95112 is 188 PPM (11 GPG), which is classified as hard.
Do I need a water softener in 95112?
With hardness of 188 PPM, a water softener is recommended for homes in 95112.
How many water systems serve 95112?
Zip code 95112 in San Jose, California is served by 25 water systems.
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