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tr Interim Emergency Rt medial Action/Monitoring Well Installation Work Plan Page 10 <br /> Former Union Facility,-Cutter Lumber <br /> Project No 102 2 <br /> May 20, 1997 <br /> t (provided by the analytical laboratory) using a bottom emptying device which minimizes <br /> sample aeration during transfer of the sample All samples will be tapped to check for <br /> head space bubbles, labeled, inserted Into foam holders and placed in an ice chest cooled <br /> tto 4°C for transport to the laboratory A chain of custody document, listing all samples <br /> collected and their intended analyses, accompanied the samples from field to the <br /> laboratory, thereby providing a means to track their movement and insure their integrity <br />' <br /> All water removed from each monitoring well and not used as a sample, will be placed in <br />' a 55 gallon DOT (Department of Transportation 17-H) approved container that is <br /> properly labeled and will be temporally stored on-site awaiting proper disposal <br />' 3.2 4 Groundwater Sample Analysis <br /> The groundwater samples collected will be delivered to Sherwood Lab (DHS <br />' Certification No 1400), of Hilmar, California, for analyses for analysts for benzene, <br /> toluene, ethylbenzene and xylene (BTEX by EPA method 602), as well as Total <br /> Petroleum Hydrocarbon as Gasoline and Diesel (TPH-G & D by EPA method 8015(m)) <br />' The detection limits for the BTEX analysis is 0 3 pg/kg , 10 pg/kg for TPH-Gasoline and <br /> 50 pg /kg for TPH-D A Chain of Custody will be completed for all samples collected <br /> and tracked to ensure sample integrity <br /> One groundwater sample from each well will also be analyzed to determine aerobic <br /> bacteria count These bacteria are conducive to natural bio-degredation of alkane and <br />' cyclo-alkane hydrocarbons <br />' 4.0 REPORTING <br />' The information gathered during this phase of work will be presented in a report which <br /> will include the results of field data and sample analyses collected, and their implications <br /> The report will be prepared and signed by a registered geologist responsible for the work <br />' Copies of the report will be forwarded to both appropriate County and State regulatory <br /> agencies <br /> I <br />' 2937 Veneman Ave , 413240 Geo-Phase Environmental Inc Phone(209)569-0293 <br /> Modesto, CA 95356 Fax(209)569-0295 <br />