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Water Hardness in 93451

Parkfield, California · San Luis Obispo County

373 PPM
21.8 GPG
Very Hard
0Soft60120180300+
Verified — State Lab Tested

Based on laboratory testing of treated tap water reported to state regulators. Updated periodically with the latest compliance data.

Our Estimate

373 PPM
21.8 GPG
Very Hard

Weighted average from 15 water systems.

What This Means For You

Very Hard Water - Treatment Strongly Recommended

Your water is very hard. Without treatment, you can expect significant scale buildup in pipes and appliances, higher energy bills from reduced water heater efficiency, and persistent issues with skin and hair dryness.

Recommended Products

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | How to Test Your Water

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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 Parkfield, CA (93451).

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Water Systems Serving 93451

Nearby Zip Codes

Frequently Asked Questions

Is the water hard in Parkfield, CA (93451)?

The average water hardness in 93451 is 373 PPM (21.8 GPG), which is classified as very hard.

Do I need a water softener in 93451?

With hardness of 373 PPM, a water softener is recommended for homes in 93451.

How many water systems serve 93451?

Zip code 93451 in Parkfield, California is served by 15 water systems.

Learn More About Your Water