Gates & Associates, Inc CSA 20240305

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Consulting Services Agreement between City of San Leandro and Gates & Associates, Inc for Staff Augmentation Exhibit A – Page 27 of 31 Subtask 8.3 — Blue Dolphin Sediment Remediation We anticipate that as part of the shoreline improvements, there will be a need for removal of the top layers of sediment within the lagoon and on land in the vicinity of the former Blue Dolphin. Although sediment testing for this area has not been initiated, it is very likely that the excavated material will not be suitable for reuse within the proposed Park footprint, and will need to be off-hauled by the marine contractor to suitable offsite disposal areas. Moffatt and Nichol will include design documents for this excavation as part of the Marina Decommissioning construction document package. Consultant will prepare the design plans for the upland landscape areas. Minor fills may be required in the area prior to the placement of the permanent Rip Rap shoreline condition. Permitting and facilitation with all agencies for this work will be led by the Consultant. It is assumed this work will be in conjunction with the Bid Package #1 construction. As the specific requirements from the Waterboard are currently unknown, Subtask 8.4 —Construction Dust Monitoring ● Develop a dust control plan for demolition and grading activities. ● Develop a dust monitoring plan for demolition and grading activities. ● Implement perimeter dust monitoring during demolition and grading activities (assumes 1 upwind and 1 downwind monitor for a duration of 12 months for dust monitoring) Subtask 8.5 - Section 2081 Incidental Take Permit If in-water work will occur outside of the standard in-water work window for longfin smelt, the project may require a Section 2081 Incidental Take Permit from CDFW. Under this task, WRA will prepare and submit an Incidental Take Permit Application for CDFW. The application will be submitted via CDFW’s online permit application platform, EPIMS. This task includes responses to up to two rounds of agency comments and one meeting with CDFW in response to the ITP application. Subtask 8.6 - Section 404(b)(1) Alternatives Analysis Any activity requiring an Individual Permit from the Corps must undergo an analysis of alternatives to identify the Least Environmentally Damaging Practicable Alternative (LEDPA) pursuant to the Clean Water Act Section 404(b)(1). If there is a “practicable alternative to the proposed discharge that would have less impact on aquatic ecosystem, provided that the alternative does not have other significant environmental consequences” [40 Code of Federal Regulations (CFR) § 230.10(a)], then the ACE cannot permit the proposed fill. Most projects meet this requirement by including a narrative assessment in the permit applications to the ACE and RWQCB; however, if either agency requests a formal, separate document be prepared in conformance with the Section 404(b)(1) Guidelines, WRA will collaborate with the City and the project designers to prepare such a document to clearly identify the LEDPA. Preparation of this analysis will necessitate input from the City to document how avoidance and minimization of impacts have been incorporated into the proposed project to achieve the LEDPA. ASSUMPTIONS & EXCLUSIONS ● Site Plan: The site plan as understood is final and only minor alterations will be made. Any significant changes to the site plan design may necessitate additional fees. DocuSign Envelope ID: 30A47DAA-8ADC-4C81-A393-00F3D4407ED9