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15671 Lower Sacramento Road Page 3 <br /> Work Plan—Soil Boring Installation <br /> GPE Project No.593 <br /> October 21,2008 <br /> plastic endcaps fitted over the sample sleeve, and a representative section of each 4-foot <br /> sample section will be labeled and placed in an ice chest chilled to 4 degrees C. <br /> It is anticipated that at least one soil sample from each boring will be submitted for <br /> analysis of the following: <br /> • Total Extractable Petroleum Hydrocarbons (TEPH-D) by EPA method 8O15(m) <br /> • Total gasoline range Petroleum Hydrocarbons (TPH-G) by EPA method 8015(m), and <br /> • Total Benzene, Toluene, Ethylbenzene, and Xylene (BTEX) using EPA method 8021. <br /> The following table summarizes the detection limits of various constituents: <br /> Compound TPH TEPH BTEX <br /> Detection Limit 50 50 0.5 <br /> Units L L L <br /> In the event that gasoline is detected in a sample, gasoline oxygenates will also be tested <br /> for using EPA method 8260. <br /> 2937 Veneman Ave.,#13240 Geo-Phase Environmental Inc. Phone(209)569-0293 <br /> Modesto,CA 95356 Fax(209)569-0295 <br />