Engineering Geotechnical Studies for the Bay Delta Conservation Plan and/or Preliminary Engineering Studies for the Delta Habitat Conservation and Conveyance Pr

10 Documents in Project

Summary

SCH Number
2010062041
Lead Agency
Water Resources, Department of (California Department of Water Resources)
Document Title
Engineering Geotechnical Studies for the Bay Delta Conservation Plan and/or Preliminary Engineering Studies for the Delta Habitat Conservation and Conveyance Pr
Document Type
NOD - Notice of Determination
Received

Document Description
The project is limited to ~80 overwater borings, approximately 220 paired geotechnical borings, cone penetrometer soundings, and ~30 small test pits to test soils to obtain geotechnical data. 50 overwater geotechnical borings will take place in the Sacramento River to obtain information for 5 proposed intake structures. Approximately 20 overwater borings are planned at 12 major water crossings. An additional 5 to 12 geotechnical borings are proposed to obtain information for docking facilities. The depths of the borings will range between 100 and 200 ft deep below the bottom of the river and the diameter of the borings will be 3.5 to 5.5 inches. Drilling will be conducted with a rotary drilling rig mounted on a shallow-draft barge or ship. Multiple barges/ships may be operated concurrently. Upon completion of each hole, the borings will be grouted from the bottom of the borehole to within 10-15 ft of the top of the hole with 5% by weight bentonite and 95% by weight cement grout. The project is located throughout the Sacramento-San Joaquin Delta in the Counties of Sacramento, Yolo, San Joaquin, Contra Costa, and Solano.

Contact Information
Andrea Boertien
California Department of Fish and Game
Bay Delta Region P.O. Box 47`
Yountville, CA 94599

209-942-6070

Location

Counties
Yolo Solano San Joaquin Sacramento Contra Costa
Parcel #
Various
State Highways
Hwy 4, 5, 12, 160, 220
Waterways
Various
Section
Multi
Other Location Info
City/Nearest Community: Sacramento-San Joaquin Delta

Notice of Determination

Approving Agency
DFG
Approving Agency Role
Responsible Agency
Approved On
Final EIR Available Location
DWR 7329 Silverado Trail Napa, CA 94558

Determinations

(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(3) Mitigated measures were made a condition of the approval of the project
N/A
(4) A Statement of Overriding Considerations was adopted for this project
N/A
(5) Findings were made pursuant to the provisions of CEQA
N/A
Download CSV New Search