Castro Valley, California Drillers and Service Providers

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Your go-to source for expert water well drillers, groundwater, and drought information in castro valley, California. Connect with trusted professionals for new wells, repairs, or maintenance.

Interactive Water Well Map – Estimate your new well's depth

Visit the Castro Valley Water Well Map to view the water, irrigation, and geothermal wells.

Water Well Professionals in Castro Valley, California – Water Well Drilling, Service, and Treatment

Water Well Drilling & Pump Services
2010 Union St
Blue Planet-Green Power and Water Inc

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Water Well Terminology

Tracer TestThe use of a dye or other substance to track the movement of groundwater.

Learn about more terms in the glossary.

Castro Valley Statistics

Geology
AquifierOther rocks
Rock FormationUnknown
Well Information*
Well Depth67 (ft)
SWL37 (ft)
Bedrock Depth-- (ft)
Yield33 (gpm)
* Average within 5km
Drought Monitor
July 8, 2025N 
July 1, 2025N 
June 24, 2025N 
June 17, 2025N 
June 10, 2025N 
June 3, 2025N 
May 27, 2025N 
May 20, 2025N