Laserfiche WebLink
20 October 2014 <br /> AGE Project No. 09-1692 <br /> Page 2 of 4 <br /> observations indicate diesel-impacted soil is still present in the samples collected from <br /> the borings advanced for lateral definition, then one contingency boring will be <br /> advanced south beyond the initial boring locations in an attempt to complete the lateral <br /> definition. <br /> The scope of work will include 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 /> 2.1. PERMITTING AND PRE-FIELD WORK PREPARATIONS <br /> Applicable site assessment permits will be obtained from the San Joaquin County <br /> Environmental Health Department (SJCEHD). In addition, a site specific health and <br /> safety plan will be prepared in accordance with Occupational Safety and Health <br /> Guidance Manual for Hazardous Waste Site Activities (National Institute for <br /> Occupational Safety and Health Administration, U.S. Coast Guard and U.S. <br /> Environmental Protection Agency, 1985). Prior to mobilization, each soil boring will be <br /> clearly marked and a utility clearance obtained through Underground Service Alert. The <br /> SJCEHD will be contacted at least 48 hours prior to conducting any field work. <br /> 2.2. SOIL PROBE BORING AND SAMPLING <br /> Initially, AGE proposes to advance a total of three (3) soil probe borings utilizing direct <br /> push drilling technology to define the lateral extent of adsorbed petroleum hydrocarbon <br /> impact at the site; and to verify analytical data from soil samples collected from <br /> Excavation Area B. Proposed soil boring locations are depicted in Figure 2. A <br /> description of proposed soil boring locations and sampling are provided below: <br /> • One soil boring will be advanced in the location of soil sample EXC.B-S2; the soil <br /> boring will be advanced to approximately 10 feet bsg for collection of soil <br /> samples to confirm the high concentrations detected at four feet bsg in soil <br /> sample EXC.B-S2. <br /> • One soil boring will be advanced approximately 15 feet south of the western <br /> sidewall of Excavation Area B to approximately 10 feet bsg to define the lateral <br /> extent of adsorbed petroleum hydrocarbon impact. <br /> Advanced Geo Environmental Inc. <br />