Well Drillers in Stanislaus County, California
Stanislaus County in the northern San Joaquin Valley is a major agricultural producer known for almonds, dairy, and poultry. Rural properties, farms, and communities outside Modesto, Turlock, and Ceres rely on private wells. Agricultural irrigation wells are a significant part of the county's well inventory.
Licensed Contractors
11
Avg. Well Depth
~250 ft
County Seat
Modesto
Licensed C-57 Contractors in Stanislaus County
AARON'S WELL DRILLING INC
ActiveDENAIR, CA 95316
(209) 479 8229
Expires: 2028-01-31
License #1010560· Verified Active C-57Services your area
View Details →AMERINE SYSTEMS INCORPORATED
ActiveOAKDALE, CA 95361
(209) 847 5968
Expires: 2026-06-30
License #493203· Verified Active C-57Services your area
View Details →CALWATER DRILLING COMPANY INC
ActiveTURLOCK, CA 95380
(209) 667 7932
Expires: 2027-05-31
License #434218· Verified Active C-57Services your area
View Details →CASTLE WELL DRILLING INC
ActiveRIVERBANK, CA 95367
(209) 968 0104
Expires: 2026-09-30
License #1044863· Verified Active C-57Services your area
View Details →CLEAR HEART DRILLING INC
ActiveSANTA ROSA, CA 95401
(707) 568 6095
Expires: 2026-06-30
License #780357· Verified Active C-57Services your area
View Details →GARY'S WELL SERVICE
ActiveOAKDALE, CA 95361
(559) 707 0816
Expires: 2026-05-31
License #805768· Verified Active C-57Services your area
View Details →HAYNES & SONS WELL DRILLING LLC
ActiveHANFORD, CA 93230
(559) 582 9355
Expires: 2026-10-31
License #977797· Verified Active C-57Services your area
View Details →HENNINGS BROS DRILLING CO INC
ActiveMODESTO, CA 95356
(209) 545 1185
Expires: 2026-05-31
License #290813· Verified Active C-57Services your area
View Details →HOWK SYSTEMS
ActiveMODESTO, CA 95354
(209) 529 4110
Expires: 2027-09-30
License #479018· Verified Active C-57Services your area
View Details →R & M WATER WELL DRILLING & PUMPS INC
ActiveVALLEY SPRINGS, CA 95252
(209) 772 2757
Expires: 2026-08-30
License #1017078· 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 →Find Well Drillers by City in Stanislaus County
Well Drilling Permits in Stanislaus County
Stanislaus County Environmental Resources Department issues well permits. The county has specific requirements for both domestic and agricultural wells. SGMA compliance affects groundwater management and may impact new well construction.
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 Stanislaus County
San Joaquin Valley alluvial deposits provide generally good aquifer conditions. The eastern foothill transition zone has a mix of alluvial and weathered rock aquifers. Groundwater quality is generally good for domestic use, though some areas have elevated nitrate from agricultural activities.
Frequently Asked Questions About Well Drilling in Stanislaus County
Do I need a permit to drill a well in Stanislaus County?
Yes, a well permit is required before any drilling can begin in Stanislaus County. Stanislaus County Environmental Resources Department issues well permits. The county has specific requirements for both domestic and agricultural wells. SGMA compliance affects groundwater management and may impact new well construction. 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 Stanislaus County?
Well drilling costs in Stanislaus 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 250 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 Stanislaus County?
Wells in Stanislaus County average around 250 feet deep, though actual depth varies with location, geology, and intended use. San Joaquin Valley alluvial deposits provide generally good aquifer conditions. The eastern foothill transition zone has a mix of alluvial and weathered rock aquifers. Groundwater quality is generally good for domestic use, though some areas have elevated nitrate from agricultural activities.
How do I find a licensed well driller in Stanislaus County?
You can browse our directory of verified C-57 licensed well drilling contractors serving Stanislaus 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 Stanislaus County?
Water quality from private wells in Stanislaus County depends on local geology and land use. It is recommended that you test your well water annually for bacteria, nitrates, and other contaminants. Stanislaus County Environmental Health can provide guidance on recommended testing. California does not regulate private well water quality, so testing is the homeowner's responsibility.