AT&T Mobility - Highland Road Facility- County File #LP19-2008


SCH Number
Lead Agency
Contra Costa County
Document Title
AT&T Mobility - Highland Road Facility- County File #LP19-2008
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Livestock Grazing/ Zoning: Exclusive Agriculture (A-80)/ General Plan Designation: Agricultural Lands (AL)
Document Description
The applicant seeks approval of a Land Use Permit to allow the establishment of a new AT&T Mobility telecommunications facility. The facility will be located approximately 1,300 feet from Camino Tassajara and will be accessed through an adjacent property through an existing dirt access road. No trees will be impacted or removed as part of the project. The proposed facility consists of the following elements: • One (1) approximately 75-foot tall mono oak antenna structure and enclosed equipment compound (560 square foot lease area); • Twelve (12) antennas (four per sector) • Eighteen (18) RRH (six per sector) • Three (3) Fiber Trunks (one per sector) • Three (3) surge suppressors (one per sector) • One (1) emergency backup generator with 192 gallon fuel tank • Miscellaneous small electrical equipment • A proposed 2-foot wide cable route (±2,500 linear feet) from the proposed antenna structure and equipment compound to a utility enclosure near an existing residence

Contact Information

Michael Hart
Agency Name
Contra Costa County
Contact Types
Lead/Public Agency

Agency Name
Contra Costa County
Contact Types
Project Applicant


San Ramon
Contra Costa
Cross Streets
Highland Road and Camino Tassajara
Total Acres
Parcel #
205-040-022 and 205-040-023
Tassajara Creek, Collier Canyon, Alamo Creek, Doolan Canyon
Other Location Info
Schools: Hidden Hills, Live Oak Elementary, Creekside Elementary, Tassajara Hills Elementary

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Department of Water Resources (DWR), California Energy Commission, California Governor's Office of Emergency Services (OES), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), Department of Toxic Substances Control, Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water
Development Types
Other (Wireless Telecommunications Facility)
Local Actions
Use Permit
Project Issues
Aesthetics, Air Quality, Biological Resources, Noise, Tribal Cultural Resources


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