LP19-2019 NOC, Environmental Document Transmittal, Initial Study


SCH Number
Lead Agency
Contra Costa County
Document Title
LP19-2019 NOC, Environmental Document Transmittal, Initial Study
Document Type
NEG - Negative Declaration

Document Description
The applicant seeks approval of a Land Use Permit to allow the establishment of a gas and oil well pad on an agriculturally zoned parcel. The project proposes to use a temporary, portable drilling rig to drill and explore for the accumulation of oil and/or gas within the Old Brentwood Oil and Gas Field. Three exploratory wells will be drilled, and if oil and/or gas is found in commercial quantities, casing will be installed and a smaller completion rig will be moved in and a permanent production well will be installed. Exploratory drilling time is estimated to take approximately 20 days per well with continuous 24 hour per day, 7 days a week operation until completion. If commercial quantities are found, installation of a completion rig will take an additional 30 days, and the rig will operate about 12 hours per day. The proposal also includes the installation of a gas pipeline, which will run approximately 4-feet under the existing access road and will be 3-inches in diameter. The total length of this pipeline will be approximately 3,350 linear feet, though most of it will be within the city limits of Antioch. The proposed wellsite will be 60,000 square feet and located approximately 463 feet south and 525 feet west of the northeast corner of the subject property. The total area for the proposed facility is less than one percent of the property’s total area of 160 acres.

Contact Information
Syd Sotoodeh
Department of Conservation & Development
30 Muir Road
Martinez, CA 94553

Phone : (925) 674-7815


37°56'22"N 121°45'18"W
Antioch Brentwood
Contra Costa
Countywide Northern California San Francisco Bay Area Unincorporated
Cross Streets
2,600 feet south of the corner of Hidden Ranch Road and Old Sand Creek Road
Total Acres
Parcel #
State Highways
Highway 4
J. Douglas Adams Middle, Paul R. Krey Elementary, Ron Nunn Eleme
Sand Creek, Deer Creek, Dry Creek, East Antioch Creek
Mt. Diab

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Gas and Oil Well Pad)
Local Action
Use Permit
Reviewing Agencies
California Air Resources Board California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Forestry and Fire Protection California Department of Parks and Recreation California Department of Resources Recycling and Recovery California Department of Transportation, District 4 California Department of Water Resources California Energy Commission California Governor's Office of Emergency Services California Highway Patrol California Native American Heritage Commission California Natural Resources Agency California Public Utilities Commission California Regional Water Quality Control Board, Central Valley Sacramento Region 5 Central Valley Flood Protection Board Department of Food and Agriculture Department of Toxic Substances Control Office of Historic Preservation State Water Resources Control Board, Division of Drinking Water California Department of Conservation


Environmental Document
_Memo   PDF 468 K LP19-2019 Comment Period Extension Request_SCH   PDF 93 K LP19-2019 OPR Summary Form   PDF 110 K LP19-2019-NOC_Env Doc Transmittal   PDF 3785 K
LP19-2019 NOC and Env Doc Transmittal_revised   PDF 338 K
State Comments
2020040217_Conservation Comment   PDF 239 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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