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Sunset Weir and Pumps Fish Passage Geotechnical Investigations (Streambed Alteration Agreement EPIMS Notification No. SUT-58514-R2)

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Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

AI Contract Overview

The California Department of Fish and Wildlife has executed Streambed Alteration Agreement EPIMS Notification Number SUT-58514-R2, pursuant to Section 1602 of the Fish and Game Code, for the Sutter Extension Water District. This project involves geotechnical investigations to support the Sunset Weir and Pumps Fish Passage Project in Live Oak, California. The primary objective is to collect subsurface data to inform the design of a new pump station and intake structures, as the removal of the Sunset Weir is expected to impact hydraulic conditions both upstream and downstream. The scope of work consists of two over-water mud-rotary borings designed to collect high-quality geotechnical samples of riverbank and foundation materials. These activities will utilize casing advancers to prevent borehole collapse and follow ASTM D1586 standards for Standard Penetration Test (SPT) sampling, utilizing a 140-pound hammer to drive a split-spoon sampler 18 inches. The project is classified as a forecast and is exempt from California Environmental Quality Act review under Class 6 categorical exemption, as the activities are limited to information gathering and will not cause major environmental disturbance.

General Info

Geotechnical borings for fish passage project, compliant with ASTM D1586 and Fish and Game Code Section 1602, in Live Oak, CA.

Agency

California → Fish and Wildlife, Region 2 - Northern Central, Rancho Cordova

NAICS

541360 - Geophysical Surveying and Mapping ServicesView NAICS

Place of Performance

Live Oak, CA, 95953

Set-Aside

NONE

Documents

(1)

Notice of Exemption for Sunset Weir and Pumps Fish Passage Geotechnical Investigations SUT-58514-R2

PDF•notice-of-exemption

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Uniform Contract Format

Timeline

PostedAug 11

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Organization & Contact Information

AgencyCalifornia → Fish and Wildlife, Region 2 - Northern Central, Rancho Cordova

Contacts2 people available

OfficeN/A

Organization / Agency

California → Fish and Wildlife, Region 2 - Northern Central, Rancho Cordova

Office AddressN/A

Contacts

Elaine JeuSenior Environmental Scientist (Specialist)

Lynn Phillips

Full Description

The California Department of Fish and Wildlife (CDFW) has executed Streambed Alteration Agreement EPIMS Notification Number SUT-58514-R2, pursuant to Section 1602 of the Fish and Game Code to the project Applicant, Sutter Extension Water District. The geotechnical investigations are being conducted in support of the Sunset Weir and Pumps Fish Passage Project. Removal of Sunset Weir is expected to have impacts on the hydraulic conditions upstream and downstream of the weir. As a result, the Sunset Weir and Pumps Fish Passage Project also will involve the design of a new pump station and new intake structures. This over water drilling program will collect information needed to provide geotechnical data to support design recommendations for the new intake structures. The work would consist of two mud-rotary borings that will be used to collect geotechnical samples of the riverbank and foundation materials. As identified in ASTM D1586, research has shown open hole mud rotary drilling to be the most reliable method for obtaining high quality samples and geotechnical data for most materials below the water table. To protect the side walls of the boring from potential erosion or caving, casing advancers will be used to install casing as the boring is advanced. The use of mud rotary is also proposed to facilitate collection of high quality Standard Penetration Test (SPT) blow counts. SPT sampling will occur in the mud-rotary boreholes as the boreholes are advanced. The sampling will be performed in accordance with ASTM D1586 Standard Test Method of Standard Penetration Test and Split-Barrel Sampling of Soils. The SPT samples will be driven with an automatic hammer that will be monitored for energy efficiency. The SPT sampling will consist of dropping a 140-pound hammer to drive a split-spoon sampler a distance of 18 inches.