Canal Replacement Project, Phases 2-5 [California Endangered Species Act (CESA) Incidental Take Permit No. 2081-2013-022-03 (ITP), Amendment No. 1]

8 Documents in Project

Summary

SCH Number
2006042082
Lead Agency
Contra Costa Water District
Document Title
Canal Replacement Project, Phases 2-5 [California Endangered Species Act (CESA) Incidental Take Permit No. 2081-2013-022-03 (ITP), Amendment No. 1]
Document Type
NOD - Notice of Determination
Received
Posted
9/12/2014
Present Land Use
Designated as waterway, Public/Semi-Public. The project site is not part of a zoning district.

Document Description
The Canal Replacement Project - Phases 2-5 involves only the unlined portion of the Contra Costa Canal, which beings at the Rock Slough Headworks and extends west 3.61 miles to Phase 1 near Marsh Creek. Pipeline installation for all phases includes mobilization of pipe-laying equipment (excavators, crane, and haul trucks), removal of soft sediment at the bottom of the canal as needed and transport of the sediment to drying ponds, placement of pipe bedding material, pipe laying, backfill in the pipe zone with aggregate base, and trench zone backfilling using the material from the berms and sediment from the canal. Project activities include isolation of the unlined Canal from the Delta by the installation of stop logs and coffer dams construction staging area improvements, unwatering of the Canal, fish rescue, shallow groundwater dewatering wells, groundwater dewatering distribution systems, filling of the Canal, construction of a flood isolation structure, installation of the new pipeline, importing fill, final grading, and installation of perimeter fencing. Phases 2-5 of the Project will permanently impact 42.533 acres of giant garter snake aquatic habitat and 89.178 associated upland habitat. The project is expected to result in incidental take of giant garter snake, which is designated as a threatened species listed under CESA that may occur as a result of Project implementation. CDFW issued the existing CESA ITP in order to address and authorize, as fully mitigated, related impacts to giant garter snake (Thamnophis gigas) and their habitat. Minor Amendment No. 1, as approved, modifies the previously issued CESA ITP, by changing the principal officer and the timing of phase 2 pipeline construction activities. In approving Minor Amendment No. 1, CDFW determined, among other things, that there would be no substantial increase in the nature or scope of the previous authorization provided by the CESA ITP, and that no new significant or substantially more severe environmental impacts than previously considered and disclosed would occur.

Contact Information
Crystal Spurr
CDFW Bay Delta Region
7329 Silverado Trail
Napa, CA 94558

Phone : (209) 234-3442

Location

Cities
Oakley
Counties
Contra Costa
Cross Streets
Jersey Island Road and Cypress Road
Zip
94561
State Highways
SR 4
Railways
BNSF
Schools
Delta Vista MS
Waterways
Marsh Creek, Emerson Slough, Dutch Slough

Notice of Determination

Approving Agency
CDFW
Approving Agency Role
Responsible Agency
Approved On
Final Environmental Document Available at
CDFW Bay Delta Region, 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 Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
N/A
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
No

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, 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.

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