Agmt12 Furgo Consultants, Inc. - Laserfiche WebLink

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EXHIBIT "A" SCOPE OF SERVICES AND FEE Fugro Consultants, Inc. (Consultant) will provide supplemental environmental assessment and consultation services at 1306 Main Street in Redwood City California (Site). Consultant was retained by the City to conduct a Phase II Environmental Site Assessment in 2012 which identified the presence total petroleum hydrocarbon as gasoline (TPHg) and volatile organic compounds (VOCs), specifically tetrachloroethene (PCE) and trichloroethene (TCE), in samples obtained from the Site. Consultant recommended that supplemental studies be conducted in a tiered manner to preliminarily evaluate whether contaminant concentrations detected in soil, groundwater, and sub-slab samples pose a human health risk to Site users, and consultation is required to assist the City in selecting an oversight agency and in addressing long term mitigation measures which may be required. Scope of Services Consultant will provide environmental consultation to the City related to the findings identified to date, the potential source(s) of the impacts, and the need to engage a lead regulatory agency to provide oversight of the Site. Consultant will preliminarily discuss with potential regulatory agency representatives the scope of future phases of site investigation which will be needed to address potential risks posed. Consultant will work with the City to prepare a "Request for Agency Oversight of a Brownfield Site" application. Consultant will conduct a tiered investigation to assess impacts to indoor air quality. Two separate indoor air sampling events will be conducted in general accordance with the indoor air sampling protocols listed in the Department of Toxic Substances Control (DTSC) Guidance for the Evaluation and Mitigation of SubsurFace Vapor Intrusion to Indoor Air (Vapor Intrusion Guidance or VIG), dated October 2011, and using standard industry practices for sampling, analyses, and documentation. Each event will include sampling of selected interior and background locations deemed appropriate based on data collected prior to the event. The basic scope elements for each event are outlined below: • Samples will be collected using laboratory-prepared 6-liter SUMMA canisters. • Consultant will collect one duplicate and one to two background air samples during each event. The duplicate sample (DUP) will be obtained from Unit 107 concurrent with the indoor air sample collection. • The background air samples will be collected from the paved parking areas to represent ambient air conditions outside of the structure. 24-hour security of the background air sample locations will be required. � For quality control purposes, Fugro will record the time and pre- and post-vacuum readings for each SUMMA canister, and prepare chain-of-custody documentation to accompany each sample to the laboratory. Each SUMMA canister will be batch- certified by the chemical laboratory and equipped with particulate filter and regulator calibrated for a 24-hour sampling event consistent with the October 2011 DTSC VIG. REV: 03-04-14 VR ATTY/AGR/2014/AMENDMENTS/AMEND NO. 1 FURGO CONSULTANTS INC. (1306 Main St Phase II) Page 3 of 5