Well Water Testing in Petaluma, California

4 verified well water specialists serving Petaluma. Every listing shows the credentials we verified.

Informational only. This page helps you find certified professionals. It is not medical, legal, or structural safety advice. For any health or safety hazard, consult a certified/licensed expert. See our verification methodology.

Typical cost in Petaluma

$150–$600

Credentials to expect

EPA-Certified Lab, State Health Dept Certified, NELAP Accredited

Key fact

~43 million U.S. homes rely on private wells; the majority are under-tested.

Well Water specialists in Petaluma

4 listings

We're still building out our Petaluma directory. These are the 4 verified well water specialists we've confirmed so far — see more across California.

Northbay Well & Pump Service

Petaluma, California

Pro
✓ CSLB C57

Northbay Well & Pump Service provides professional home safety services in Petaluma, CA. The company holds CSLB C57 certification. Contact Northbay Well & Pump Service for more information.

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Anthony Joseph Adiego

Petaluma, California

Free
✓ CSLB C10 | C38 | C57

Anthony Joseph Adiego provides professional home safety services in Petaluma, CA. The company holds CSLB C10 | C38 | C57 certification. Contact Anthony Joseph Adiego for more information.

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Free
✓ CSLB C36 | C57

Jerry And Don'S Yager Pump And Well Service provides professional home safety services in Petaluma, CA. The company holds CSLB C36 | C57 certification. Contact Jerry And Don'S Yager Pump And Well Service for more information.

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Oasis Pump & Drilling

Petaluma, California

Free
✓ CSLB C10 | C38 | C57

Oasis Pump & Drilling provides professional home safety services in Petaluma, CA. The company holds CSLB C10 | C38 | C57 certification. Contact Oasis Pump & Drilling for more information.

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Well Water Testing in Petaluma — FAQ

How often should I test my well water?
The CDC recommends annual testing for bacteria, nitrates, and pH — and after any flooding or nearby land-use change.
What does a well water test cost?
A standard panel runs $150–$600 depending on the contaminants screened (bacteria, nitrates, arsenic, lead, VOCs).
Why use a certified lab?
Only EPA/state-certified or NELAP-accredited labs produce results accepted for real-estate transactions and regulatory purposes.

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