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2.0 INTRODUCTION <br /> This HASP serves the following purposes: <br /> • Identifies and describes the potentially hazardous substances and working conditions <br /> that may be encountered during the field work; <br /> • Specifies personal protective and monitoring equipment to be used during onsite <br /> activities; and <br /> • Outlines measures to be implemented in the event of an emergency <br /> 2.1 SITE LOCATION AND DESCRIPTION <br /> This Site is a former landfill located at 3242 South El Dorado Street in Stockton, California. The <br /> former landfill has been capped and quarterly groundwater monitoring activities have been <br /> conducted since the late 1990s. In addition, a full scale landfill gas treatment system is operating <br /> at the Site. During recent events it has been determined that extraction wells are necessary to <br /> dewater the area within the landfill that is in contact with auto shredder residue (ASR) in order to <br /> support remediation efforts. Based on the results from monitoring activities, it was determined <br /> that gasoline, diesel, barium, iron, manganese, chlorobenzene, 1,2-dichlorobenzene, 1,4-dichlorobenzene, <br /> 1,2-dichloroethane, TBA, and MTBE are identified as the constituents of concern (COC) in the <br /> groundwater as well as methane gas within the landfill gas. <br /> EarthCon has prepared a Workplan for the installation of up to 4 extraction wells at locations <br /> identified following a CPT (spell out CPT is this is the first use) investigation used to identify <br /> appropriate locations. <br /> 2.2 PROJECT OBJECTIVES <br /> EarthCon will provide oversight of the CPT investigation for the well placement. Once the <br /> locations have been approved, up to four (4) extraction wells will be advanced to approximately <br /> 40 feet below ground surface. After well installation has been completed, EarthCon personnel <br /> will setup the dewatering system which will include: submersible pumps, settling tank, pump <br /> tank, transfer pump, bag filters, and carbon canisters. Drill cuttings, rinseate water, purge water, <br /> and decors water will be containerized and disposed of based on analytical results. <br /> The ultimate objective is to conduct all activities in a safe and compliant manner. <br /> 8 <br />