Laserfiche WebLink
12 June 2003 <br /> AGE-NC Project No. 03-1038 <br /> Page 3 of 5 <br /> The preliminary site assessment tasks are discussed below. <br /> 3.1. PRE-FIELD WORK TASKS <br /> A health and safety plan will be prepared in accordance with Occupational Safety and Health <br /> Guidance Manual for Hazardous Waste Site Activities (National Institute for Occupational Safety <br /> and Health Administration, U.S. Coast Guard and U.S. Environmental Protection Agency, 1985). <br /> Prior to mobilization,the area of excavation will be clearly marked and a utility clearance obtained <br /> through Underground Service Alert. <br /> 3.2. SOIL SAMPLE COLLECTION AND ANALYSIS <br /> AGE proposes to advance eight probe borings using direct push technology at various areas of the <br /> site, including the adjacent City of Stockton parking lot (immediately east of Carando Machine <br /> Works) to assess for solvent-impacted and petroleum hydrocarbon-impacted soil beneath the site. <br /> Each boring will be advanced to depths of approximately 25 feet below surface grade (bsg); the <br /> proposed probe boring locations may be modified due to field observations. As each boring is <br /> advanced, soil samples will be collected at 5-foot intervals beginning at 5 feet bsg and extending to <br /> the total depth of the probe boring. <br /> The proposed probe boring locations are illustrated in Figure 2. Field procedures for advancement <br /> of probe borings and collection of soil samples are presented in Sections 4.1. <br /> Selected soil samples from each probe boring will be submitted for laboratory analysis.The selected <br /> soil samples will be analyzed by a State of California Department of Health Services(DHS)-certified <br /> laboratory for one or more the following constituents: <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Method 8015M; <br /> • Volatile organic compounds in accordance with EPA Method 8260B. <br /> Laboratory reports for soil analyses, testing methods, laboratory quality assurance/quality control <br /> (QA/QC) reports, and sample chain of custody documentation will be presented in a report with <br /> findings and recommendations. <br /> Advanced GeoEnviron mental,Inc. <br />