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J�F <br /> 10/16/1991 Revised workplan submitted to EHD. ::. j <br /> 10/24/1991 Additional spoil removed from fromijsouth side of <br /> excavation where prior sampling had revealed con- <br /> tamination. A small area on the north wall was <br /> also re-excavated. 5 soil samples:!Iwere taken and <br /> analyzed for BTEX, EDB, TPH-G, TPH=D, ,& oil and <br /> grease. <br /> i 10/31/1991 Laboratory results showed that alli'stested sub-- <br /> stances were below detection ..1imi.ts, exceptAoi1 __ <br /> grease, That test" 'was run using I:method'"S!"1503C; <br /> which was an incorrect procedure. �I <br /> # 11/13/1991 The samples were" retested using EPA Method 418. 1; <br /> that analysis revealed that all sa'M` ples were be- <br /> low detection levels, <br /> 1/17/1992 FGL Environmental wrote to EHD explaining differ- <br /> ence in the results' between the two procedures, <br /> and provided additional backup data to show that <br /> the results of Method 418. 1 were correct. ' <br /> NOTE: Spoil pile has been characterized and accepted by <br /> Forward, it. will be delivered to them and the r <br /> ` existing excavation will be filled;,and properly <br /> compacted when weather permits,. <br /> cc: Ann Dito <br /> Jim Thorpe Oil <br /> IA. <br /> f a <br /> 1 . <br /> S ' <br /> M <br /> h <br /> G <br /> i!' li <br /> i. <br /> i " ' <br />