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31 March 2014 ` <br /> AGE Project No. 14-2997 <br /> Page 2 of 5 <br /> 2.0. SCOPE OF WORK <br /> A review of records for subject property address 2431 East Mariposa Road at the San <br /> Joaquin County Environmental Health Department revealed the presence of two <br /> recently removed diesel underground storage tanks (USTs). <br /> The assessment activities will consist of the following tasks: <br /> • Permitting and pre-field work activities; <br /> • Advancement of soil borings for collection of soil samples; <br /> • Sample analysis; <br /> • Soil boring abandonment; and <br /> • Report preparation. <br /> Each of these tasks is discussed below in detail. <br /> 2.1 . PERMITTING AND PRE-FIELD WORK PREPARATIONS <br /> Applicable soil boring permits will be obtained from SJCEHD. An update to the health <br /> and safety plan presently on-file will be prepared in accordance with Occupational <br /> Safety and Health Guidance Manual for Hazardous Waste Site Activities (National <br /> Institute for Occupational Safety and Health Administration, U.S. Coast Guard and U.S. <br /> Environmental Protection Agency, 1985). Prior to mobilization, the area of excavation <br /> will be clearly marked and a utility clearance obtained through Underground Service <br /> Alert. The SJCEHD will be contacted at least 48 hours prior to conducting any field <br /> work. <br /> 2.2. SOIL PROBE BORING AND SAMPLING <br /> AGE proposes to advance up to five (5) soil probe borings utilizing a direct push drilling <br /> rig to evaluate the presence and define the type or extent of petroleum hydrocarbon- <br /> impacted soil between 15 feet and approximately 40 feet bsg. Proposed soil boring <br /> locations are depicted in Figure 2. A description of proposed soil boring locations is <br /> provided below: <br /> • One soil boring will be advanced at the northern most property boundary to <br /> evaluate the lateral extent of the impacted soil from the UST excavation; <br /> • Two soil borings will be advanced from the northern edge of the current <br /> excavation: one vertical soil boring and one angled soil boring at 20 degrees <br /> Advanced GeoEnvironmental Inc. <br />