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AdvancedGeo <br /> 09 January 2019 Environmental <br /> AGE Project No. 99-0559 � G <br /> Page 3 of 7 <br /> 2.1. PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable site assessment permits will be obtained from the EHD and encroachment <br /> permits will be procured from the City of Stockton. In addition, a health and safety plan <br /> will be updated in accordance with Occupational Safety and Health Guidance Manual <br /> for Hazardous Waste Site Activities (National Institute for Occupational Safety and <br /> Health Administration, U.S. Coast Guard and U.S. Environmental Protection Agency, <br /> 1985). Prior to mobilization, each proposed boring location will be clearly marked, and a <br /> utility clearance obtained through Underground Service Alert. <br /> 2.2. SOIL PROBE BORING AND SOIL SAMPLING <br /> AGE proposes to advance a total of seven (7) soil borings to total depths of 10 feet <br /> below surface grade (bsg) for collection of soil samples for comparison to criteria <br /> outlined on the LTCP, and to confirm soil sampling results near piping samples PL-2 <br /> through PL-6. Five (5) soil borings will be advanced adjacent to piping samples PL-2 <br /> through PL-6, one soil boring will be advanced in front of the onsite building, and one <br /> soil boring will be advanced in the center of the site. All borings will be advanced <br /> utilizing a direct-push drilling rig or a hand auger. Soil boring locations are depicted in <br /> Figure 2. <br /> Soil samples will be analyzed by a California Environmental Laboratory Accreditation <br /> Program-certified (ELAP) lab for the following: <br /> • Total petroleum hydrocarbons quantified (TPH-g) in accordance EPA method <br /> 8015M. <br /> • Volatile organic compounds: benzene, toluene, ethylbenzene, and xylenes <br /> (BTEX), naphthalene, and fuel oxygenates MTBE, di-isopropyl ether (DIPE), <br /> ethyl tertiary-butyl ether (ETBE), tertiary-amyl methyl ether (TAME), and tertiary <br /> butanol (TBA) and lead-based fuel scavengers ethylene dibromide (EDB) and <br /> 1,2-dichloroethane (1,2-DCA) in accordance with EPA Method 8260BB. <br /> Laboratory reports for soil sample and water analyses, testing methods, laboratory <br /> quality assurance/quality control (QA/QC) reports, and sample chain-of-custody <br /> documentation will be presented in a report with the findings and recommendations. <br /> Electronic Deliverable Format (EDF) files of the laboratory analytical results will be <br /> submitted to the State of California GeoTracker database <br /> Procedures for advancement of soil borings and sampling are presented in Section 3.0. <br />