Amendment_5_to_CSA_Between_The_City_of_SL_&_Gates_Associates_Shoreline

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Consulting Services Agreement between City of San Leandro and Gates & Associates, Inc for Staff Augmentation Exhibit A – Page 8 of 31 mitigation options. Once a feasible mitigation option has been verbally agreed upon by the City and the applicable regulatory agencies, CONSULTANT will prepare a second memorandum outlining the mitigation concept in a manner that can be incorporated into permit applications. Previous testing of lagoon and perimeter sediments where work is planned to occur indicate that the material was suitable for a combination of Unconfined Aquatic Disposal and placement at the Dredged Material disposal ponds near the Golf Course. Although minimal to no dredging is proposed within the marina berth areas, the new Boat Launch area will require dredging of materials that have not been dredged before. Sampling and testing, consistent with guidance from the Dredged Material Management Office (DMMO), will be needed for the proposed dredging and disposal of excavated material. Specific tasks associated with this include Pacific EcoRisk performing the following: ● Preparation of the Sampling and Analysis plan (SAP) to be submitted to DMMO for approval of the sampling program ● Sediment sampling based on DMMO requirements (4 sediment cores, one composite sample tested) ● Laboratory analysis based on typical DMMO requirements ● Preparation of the Sediment Test Results (STR) to be submitted to DMMO ● Participation in meetings with DMMO All deliverables shall be pdf format except as noted below. ● Bathymetric Survey ● Existing document summary ● Environmental Data Request List ● Geotechnical Report ● Hazardous Materials Abatement Specifications ● Hazardous Materials Report ● Memorandum of known compensatory mitigation options ● Memorandum summarizing project’s compensatory mitigation approach to be proposed in permit applications ● One draft and one final Arborist Report ● One draft and one final Biological Resources Technical Memorandum ● Phase I Environmental Site Assessment ● Phase II Environmental Site Assessment to assess the former UST location and to supplement previous sampling activities (increase spatial coverage of sample locations, include limited soil vapor assessment) ● Project Issues and Constraint Summary ● Sediment Sampling and Analysis Plan ● Sediment Testing Results ● Supplemental Topographic Survey in AutoCad and pdf DocuSign Envelope ID: 30A47DAA-8ADC-4C81-A393-00F3D4407ED9Docusign Envelope ID: 13C1466D-0AAC-4076-BFEB-08C6F962971ADocusign Envelope ID: D3886DBE-B91A-48B8-8B13-98FC0D0AA5C3