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<br />Consulting Services Agreement between City of San Leandro and Last revised 10/10/2022] <br />Terraphase for Tony Lema landfill climate vulnerability assessment Exhibit A – Page 1 of 4 <br />EXHIBIT A <br /> <br />SCOPE OF SERVICES <br /> <br />Terraphase will provide technical expert support services to the City of San Leandro for San Francisco Bay <br />Regional Water Quality Control Board (SFRWQCB) Waste Discharge Requirements Amendment <br />compliance related tasks at the Tony Lema landfill (“Site”). The closed Tony Lema Golf Course Disposal <br />Site is located at 13800 Monarch Bay Drive, San Leandro, California. The Site is owned by the City of San <br />Leandro. It is a closed former landfill disposal unit that is currently leased and is used as a municipal golf <br />course. In 1966 the City of San Leandro purchased the property, raised the Site elevation, and <br />subsequently diked and filled the approximately 120-acre Site. The Site is bounded by an Alameda County <br />Flood Control Canal to the north, a dredged materials management site to the east, tidal wetlands to the <br />south, and a levee and San Francisco Bay to the west. There are no developed properties directly adjacent <br />to the Site. The Site is fenced to control access and receives a high level of non-regulatory maintenance <br />and inspection due to its end use as a golf course. The Site is managed under an existing San Francisco <br />Regional Water Quality Control Board (SFRWQCB) Waste Discharge Requirements ORDER NO. R2-95- <br />129 (Case # 2 019199001; GeoTracker Global ID # L10007439002) and is now also subject to a recently <br />adopted SFRWQCB Order Amendment (ORDER NO. R2-2022-0031, Amending Waste Discharge <br />Requirements for Bayfront Landfills). <br /> <br />The proposed consulting support will include the following: <br /> <br />Task 1: Site Background Review, Regulatory Review and Flood Research <br />Task 1 will include Site background review, regulatory review, and flood research. Terraphase will develop <br />existing Site topography and associated exhibits based on available LiDAR data. Landfill records made <br />available by the City of San Leandro and records available through the GeoTracker database will be <br />reviewed to better understand Site constraints, landfill contents, potential contaminants, fill material <br />characteristics, existing utilities, evidence of subsidence and other pertinent data. A Site inspection and <br />photo documentation of existing conditions will be performed. Subsurface groundwater conditions will be <br />characterized by reviewing onsite groundwater well records provided by the City of San Leandro and <br />GeoTracker records of nearby groundwater wells. Current golf course operations and maintenance <br />practices provided by the City of San Leandro will be reviewed. Landfill and drainage regulatory information <br />will be reviewed and summarized. <br /> <br />Flood research will include review of the following references, among others, to better understand <br />estimates of future sea level rise, groundwater rise, and extreme storm events: <br /> 2018 State of California Sea Level Rise Guidance by Ocean Protection Council <br /> Current Updated Global and Regional Sea Level Rise Scenarios for the United States by <br />NOAAand others <br /> San Francisco Bay Shoreline Adaptation Atlas by San Francisco Estuary Institute <br /> Bay Plan Climate Change Amendment by the Bay Conservation and Development Commission <br /> Coastal Storm Modeling System by United States Geologic Survey <br /> Analysis of Impact of Nonstationary Climate on NOAA Atlas 14 Estimates by NOAA <br /> Alameda County Hydrology & Hydraulics Manual <br /> <br /> <br />DocuSign Envelope ID: 974C2867-84D8-4D0B-8A87-C4E791D70B9A