Agmt23 BKF Engineers Price Tract Pump Station

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REV: 11-07-23 SK equipment will be decontaminated before each sampling episode per standard protocol, and borings will be backfilled with cement grout as required and their tops sealed with AC cold patch. Soil cuttings will be stored in 55-gal drums, which will be labeled as non-hazardous waste, sealed, and moved to a location specified by the City for storage. Consultant will assume Consultant will environmentally profile the contents and retain ACT (Advanced Chemical Transport) to remove and lawfully dispose of the drums. Consultant will assume that the drum contents will be non-hazardous in nature. Consultant will store the samples in an ice chest until transported to McCampbell Analytical under a chain-of-custody with analysis instructions for testing on a standard turnaround basis (Standard: 5 to 7 working days), unless requested otherwise. The testing protocol will tentatively be as follows: • Volatile Organic Compounds or VOC’s (EPA 8260) • Semi-Volatile Organic Compounds or SVOC’s (EPA 8270) with GPC clean-up • cOrgano-Chlorine Pesticides (EPA 8081) (For near surface soils) with Florisil Clean-up • Polychlorinated Biphenyls (PCB’s; EPA 8081) • Total Petroleum Hydrocarbons as Gasoline (TPHg) w/ BTEX & MTBE • Total Petroleum Hydrocarbons as Diesel & Motor Oil (TPHd+m.o.) with Silica Gel Clean up • CAM 17 Metals • Waste Extracon (STLC/TCLP) tests on soil samples only, as required • CARB 435 Asbestos In the event CAM 17 metal concentrations in the procured soil samples exceed the threshold limits, BAGG will conduct follow up waste extraction tests (TCLP/STLC) as required. BAGG will prepare a brief report describing the analytical test results with comparisons to the RWQCB Environmental Screening Levels (ESLs) and California Title 22, including a table summarizing the detected contaminants with references to the above-noted published standards, a vicinity map, a site plan showing the boring locations, and the analytical reports. Deliverables: Phase II ESA report This optional task assumes the following: 1. Typical protocol for a Phase-II investigation is to use the Phase-I report as the basis in the event it outlines any environmental areas of concern. The scope for the Phase-II investigation will then be formulated based on the results of the Phase-I report. As such, there is a possibility that the Phase-II scope provided herein may have to be modified. ATTY/AGR.2023.241/BKF Engineers (Price Tract Pump Station Design) (Page 42 of 68)