Well Drillers in San Diego County, California
San Diego County has active well drilling in its expansive east county backcountry. Communities like Ramona, Julian, Valley Center, Fallbrook, and Jamul rely on private wells. The county's semi-arid climate and growing population make groundwater an increasingly valuable resource.
Licensed Contractors
14
Avg. Well Depth
~300 ft
County Seat
San Diego
Licensed C-57 Contractors in San Diego County
ACME WELL DRILLING INC
ActiveRAMONA, CA 90265
(760) 803 4526
Expires: 2026-09-30
License #1044502· Verified Active C-57Services your area
View Details →ALL AMERICAN DRILLING AND PUMP SERVICE LLC
ActiveESCONDIDO, CA 92027
(760) 470 1655
Expires: 2027-08-31
License #999009· Verified Active C-57Services your area
View Details →ASPIN RICK A CONSTRUCTION
ActiveRAMONA, CA 92065
(760) 535 4024
Expires: 2027-12-31
License #583402· Verified Active C-57Services your area
View Details →DIERKOP PAUL
ActiveCAMPO, CA 91906
(619) 345 1385
Expires: 2026-03-12
License #1002445· Verified Active C-57Services your area
View Details →EAST COUNTY PUMP SERVICES
ActiveALPINE, CA 91901
(619) 871 8828
Expires: 2026-03-31
License #408282· Verified Active C-57Services your area
View Details →GRANITE CONSTRUCTION COMPANY
ActiveWATSONVILLE, CA 95077
(831) 768 4086
Expires: 2027-05-31
License #89· Verified Active C-57Services your area
View Details →HYDRO - TECH WELL SERVICES INC
ActiveRAMONA, CA 92065
(760) 789 7514
Expires: 2026-04-30
License #594721· Verified Active C-57Services your area
View Details →INDEPENDENT WELL DRILLING
ActiveAPPLE VALLEY, CA 92307
(760) 247 9882
Expires: 2026-08-31
License #920385· Verified Active C-57Services your area
View Details →L O LYNCH QUALITY WELLS & PUMPS INC
ActiveSAN JACINTO, CA 92582
(951) 654 7724
Expires: 2027-09-30
License #740156· Verified Active C-57Services your area
View Details →SOUTHERN CALIFORNIA WELL SERVICE LLC
ActiveANZA, CA 92539
(760) 239 8159
Expires: 2028-02-29
License #1086994· Verified Active C-57Services your area
View Details →STEHLY BROTHERS DRILLING INC
ActiveVALLEY CENTER, CA 92082
(760) 742 3668
Expires: 2028-02-29
License #709686· Verified Active C-57Services your area
View Details →TRI-COUNTY DRILLING INC
ActiveSAN DIEGO, CA 92129
(858) 271 0099
Expires: 2026-11-30
License #547737· Verified Active C-57Services your area
View Details →WEST STAR WELL SERVICES INC
ActiveBARSTOW, CA 92311
(442) 309 0445
Expires: 2026-09-30
License #1096187· Verified Active C-57Services your area
View Details →WESTERN FOUNDATIONS & SHORING INC
ActiveLAKESIDE, CA 92040
(619) 561 3510
Expires: 2027-05-31
License #439363· Verified Active C-57Services your area
View Details →Find Well Drillers by City in San Diego County
Well Drilling Permits in San Diego County
San Diego County Department of Environmental Health issues well permits. The county has comprehensive well construction requirements, including mandatory water quality testing. Permits require site plans and well design specifications.
All well construction, modification, or destruction in California must be performed by a contractor holding a valid C-57 Well Drilling license issued by the Contractors State License Board (CSLB).
Geology & Drilling Conditions in San Diego County
Coastal areas have sedimentary formations and alluvial deposits. Inland valleys feature decomposed granite and fractured crystalline rock aquifers with variable yields. The Borrego Valley in the eastern desert has deep alluvial aquifers. Water quality can be affected by naturally occurring minerals in some areas.
Frequently Asked Questions About Well Drilling in San Diego County
Do I need a permit to drill a well in San Diego County?
Yes, a well permit is required before any drilling can begin in San Diego County. San Diego County Department of Environmental Health issues well permits. The county has comprehensive well construction requirements, including mandatory water quality testing. Permits require site plans and well design specifications. All well work must be performed by a contractor holding a valid California C-57 Well Drilling license.
How much does it cost to drill a well in San Diego County?
Well drilling costs in San Diego County typically range from $15,000 to $50,000 or more, depending on depth, geological conditions, and site accessibility. Average well depths in the area are around 300 feet. Getting quotes from multiple licensed C-57 contractors is the best way to estimate your specific project cost.
How deep are wells typically drilled in San Diego County?
Wells in San Diego County average around 300 feet deep, though actual depth varies with location, geology, and intended use. Coastal areas have sedimentary formations and alluvial deposits. Inland valleys feature decomposed granite and fractured crystalline rock aquifers with variable yields. The Borrego Valley in the eastern desert has deep alluvial aquifers. Water quality can be affected by naturally occurring minerals in some areas.
How do I find a licensed well driller in San Diego County?
You can browse our directory of verified C-57 licensed well drilling contractors serving San Diego County right on this page. Every contractor listed holds a valid California C-57 Well Drilling license verified through the Contractors State License Board (CSLB). We recommend contacting multiple drillers for quotes and checking their license status before hiring.
What should I know about water quality from a well in San Diego County?
Water quality from private wells in San Diego County depends on local geology and land use. It is recommended that you test your well water annually for bacteria, nitrates, and other contaminants. San Diego County Environmental Health can provide guidance on recommended testing. California does not regulate private well water quality, so testing is the homeowner's responsibility.