4A Presentation 2018 0618 - Laserfiche WebLink

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1.4 Scope of Marina Facilities Decommissioning Assessment Study GHD is working under contract to the City of San Leandro Public Works Department for engineering and professional services to develop a Decommissioning and Demolition Plan for the San Leandro Marina. This project is undertaken in support of the San Leandro Shoreline Development Project currently in progress by the City and Cal-Coast Development. The project includes field investigation and engineering activities required to evaluate observable physical and environmental conditions of the facilities to provide for development of a Decommissioning and Demolition Plan. A physical inventory of marina facilities will be prepared including floating docks, fixed piers, buildings on fixed piers, subsurface support structures, utilities, Harbor Master’s office and a limited amount of rock revetment or rip-rap. Field investigation requires access to buildings and improvements by GHD engineers. Documentation of existing utility components (water, electrical, sewer and/or communications) will be included in the inventory. A table and drawing will be prepared identifying quantities of materials that will be demolished, recycled, sold or reused. Existing as-built engineering drawings provided by the City will be reviewed as a component of the Marina Facilities Decommissioning Assessment to identify construction methods and materials of existing marina appurtenances. A Hazardous Materials survey will be conducted to identify and quantify potential hazardous materials associated with the marina facilities including fluorescent light fixtures, mercury- containing equipment, battery devices, creosote pilings and potential lead and asbestos containing materials. The Hazardous Materials survey will identify sample locations and parameters that may include polychlorinated biphenyls (PCBs), total Resource Conservation and Recovery Act (RCRA) metals, RCRA semi-volatile organic compounds (SVOCs) and RCRA volatile organic compounds (VOCs). Photo documentation will be completed as part of this task, in a format acceptable to the City. GHD will prepare a Health and Safety Plan (HASP) to address project-specific hazards associated with completing the scope of work outlined in this section. As part of this task, a format will be developed to capture and report piling and foundation removal and disposal costs, identification of acceptable disposal sites, associated restoration activities and quantification and cataloging of building material types, which will be presented in demolition quantity tables. Decommissioning Permits Assessment GHD will determine Resource Agency permitting needs for Phase II Demolition as part of this assessment. Based on our current understanding of the Project, resource agencies that would have permitting authority over demolition of the existing marina would include: •Army Corps of Engineers (ACE) •Regional Water Quality Control Board (RWQCB) •Bay Conservation and Development Commission (BCDC) •California Department of Fish & Wildlife (CDFW) 18