Well Water Testing in Pleasanton, California

3 verified well water specialists serving Pleasanton. 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 Pleasanton

$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 Pleasanton

3 listings

We're still building out our Pleasanton directory. These are the 3 verified well water specialists we've confirmed so far — see more across California.

Altamont Water Well And Pump

Pleasanton, California

Featured
✓ CSLB C57

Altamont Water Well And Pump provides professional home safety services in Pleasanton, CA. The company holds CSLB C57 certification. Contact Altamont Water Well And Pump for more information.

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Caldecott Retrofit Partners Jv

Pleasanton, California

Free
✓ CSLB A | B | C33 | C36 | C57 | D30 | HAZ

Caldecott Retrofit Partners Jv provides professional home safety services in Pleasanton, CA. The company holds CSLB A | B | C33 | C36 | C57 | D30 | HAZ certification. Contact Caldecott Retrofit Partners Jv for more information.

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Precision Excavating & Drilling Inc

Pleasanton, California

Free
✓ CSLB A | B | C10 | C12 | C57

Precision Excavating & Drilling Inc provides professional home safety services in Pleasanton, CA. The company holds CSLB A | B | C10 | C12 | C57 certification. Contact Precision Excavating & Drilling Inc for more information.

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Well Water Testing in Pleasanton — 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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