Well Drillers in Sierra County, California

Sierra County is one of California's smallest and most remote counties, deep in the northern Sierra Nevada. With no incorporated cities, all development relies on private wells and springs. The county's mountainous terrain and sparse population require well drillers experienced in difficult access conditions.

Licensed Contractors

1

Avg. Well Depth

~200 ft

County Seat

Downieville

Licensed C-57 Contractors in Sierra County

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Active
JANESVILLE, CA 96114
(530) 253 3601
Expires: 2027-08-31
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Well Drilling Permits in Sierra County

Sierra County Environmental Health handles well permits. The remote, mountainous terrain means seasonal access limitations and longer construction timelines. Winter weather restricts drilling activity in most of the county.

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 Sierra County

Dominated by Sierra Nevada granitic and metamorphic bedrock, with groundwater in fracture systems. Gold mining history has left some areas with altered groundwater chemistry. The small valleys along the Yuba River tributaries have limited alluvial aquifer potential.

Frequently Asked Questions About Well Drilling in Sierra County

Do I need a permit to drill a well in Sierra County?
Yes, a well permit is required before any drilling can begin in Sierra County. Sierra County Environmental Health handles well permits. The remote, mountainous terrain means seasonal access limitations and longer construction timelines. Winter weather restricts drilling activity in most of the county. 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 Sierra County?
Well drilling costs in Sierra 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 200 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 Sierra County?
Wells in Sierra County average around 200 feet deep, though actual depth varies with location, geology, and intended use. Dominated by Sierra Nevada granitic and metamorphic bedrock, with groundwater in fracture systems. Gold mining history has left some areas with altered groundwater chemistry. The small valleys along the Yuba River tributaries have limited alluvial aquifer potential.
How do I find a licensed well driller in Sierra County?
You can browse our directory of verified C-57 licensed well drilling contractors serving Sierra 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 Sierra County?
Water quality from private wells in Sierra County depends on local geology and land use. It is recommended that you test your well water annually for bacteria, nitrates, and other contaminants. Sierra County Environmental Health can provide guidance on recommended testing. California does not regulate private well water quality, so testing is the homeowner's responsibility.

Nearby Counties

Plumas County

Northern California

Nevada County

Sacramento Valley

Yuba County

Sacramento Valley

Lassen County

Northern California