Laserfiche WebLink
V NUM4 <br /> Interim Remedial Action Work Plan <br /> 1405 California Street,Escalon,California <br /> with plastic end caps, labeled with sample and project identification numbers, and placed directly <br /> in iced storage for delivery to the environmental laboratory. The soil samples will be listed on a <br /> chain of custody record and submitted to the laboratory for chemical analyses. <br /> Stockpile Characterization <br /> Soil generated during the excavation work will be characterized by a sample collection and <br /> laboratory analysis program. Soil sample composites will be collected from the soil stockpile at a <br /> rate of one composite of four individual soil samples for every 50 cubic yards of stockpiled soil. <br /> Each individual soil sample will be collected by first removing approximately one foot of soil from <br /> the surface of the pile and then driving a clean sample sleeve through the freshly exposed surface. <br /> Each soil sample will be sealed, labeled, and handled in the same manner as described above. <br /> Laboratory Analytical Work <br /> Each soil sample and sample composite collected at the site will be analyzed by California <br /> Laboratory Services, Inc., of Rancho Cordova, California, for total petroleum hydrocarbons in the <br /> ranges of gasoline and diesel fuel using EPA method 8015 modified; and for benzene, toluene, <br /> ethylbenzene,total xylene isomers,and methyl t-butyl ether using EPA method 8020 with purge and <br /> trap EPA method 5030. <br /> Report Preparation <br /> A written report describing the field operations and summarizing the results of the laboratory <br /> analyses will be prepared and submitted to the San Joaquin County Environmental Health Division <br /> for review. The report will also include an illustration depicting the approximate locations of the <br /> soil samples collected at the site during the overexcavation of the former fuel dispenser island area. <br /> Time Schedule and Quality Assurance <br /> We plan to begin the soil excavation work on July 15, 1997, and anticipate collecting soil samples <br /> at 11:00 am that same day. All work will be conducted in a manner consistent with generally <br /> accepted methods in the field of environmental engineering and hydrogeology. If you have any <br /> questions regarding this Interim Remedial Action Work Plan, do not hesitate to call our office. <br /> Sincerely, <br /> 5���ED GE��D <br /> Grayland Environmental <br /> �� 4.� REV 0�� <br /> No.5597 <br /> Jeffrey A. Clayton, R.G., REA Exp.8/31/97 <br /> Principal Geologist <br /> cc: Mr. Rick Walton(Walton Engineering) oh•Ca�.�Fo��P <br /> GRAYLAND ENVIRONMENTAL <br /> Grayland 022-151.sew 2 <br />