Geotechnical Investigations at Hidden Valley Wildlife Area For 230-kV Transmission Line
Summary
SCH Number
2021110074
Public Agency
California Department of Fish and Wildlife, Inland Deserts Region 6
(CDFW)
Document Title
Geotechnical Investigations at Hidden Valley Wildlife Area For 230-kV Transmission Line
Document Type
NOE - Notice of Exemption
Received
Posted
11/4/2021
Document Description
Notice of Exemption (NOE) for geotechnical investigations. Southern California Edison will carry out geotechnical field investigation for tower sites AX16, AX20 and AX21/D1 of the 230-kV Riverside Transmission Reliability Project (RTRP). The purpose of the geotechnical investigation is to provide design parameters for the foundation design and recommendations for civil design (including site grading and access roads) for the RTRP segment on the Property. The planned field work will last about three to five days. The proposed field activities include three exploratory hollow stem auger borings at six to eight inches in diameter and approximately 50 feet below ground surface. The proposed field activities include up to eight test pit locations. The test pits are proposed in locations for cut or fill slopes planned for access roads and maintenance pads. Each test pit will be advanced to depths of 5 to 10 feet below ground surface. The holes will be backfilled with native soil or bentonite mud as needed. No wells or permanent features will be installed. The beneficiaries of the investigation would be Southern California Edison and Riverside Public Utility by providing pre-construction data collection for the three structures and their access roads and maintenance pads.
Contact Information
Name
Leslie MacNair
Agency Name
California Department of Fish and Wildlife
Contact Types
Lead/Public Agency
Phone
Name
Fabiola Guerra
Agency Name
Southern California Edison
Contact Types
Project Applicant / Parties Undertaking Project
Phone
Email
Location
Cities
Riverside
Counties
Riverside
Regions
Southern California
Cross Streets
Julian Drive and Idyllwild Lane
Other Location Info
City of Riverside
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 4, section 15304 (f) and Class 6, section 15306
Reasons for Exemption
Project consists of minor trenching and backfilling where the surface is restored. Project also consists of basic data collection, research, experimental management, and resource evaluation activities which do not result in a serious or major disturbance to an environmental resource.
Attachments
Notice of Exemption
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