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a, <br /> M M-M <br /> contamination was obvious by sight and smell . The clean up was <br /> done by startirig at the edges of the previous excavation and <br /> moving outward and downward until no more evidence of the contam- <br /> ination was found. After reaching the obvious end of this contarn- <br /> ination, to make sure all ;vas removed, the excavation \vas exten- <br /> ded at least 5 feet past the end of contamination in all direct- <br /> ions . The contamination appeared to be tear drop in %Ihapc and <br /> followed a very symetrical pattern in a circle approxirwrtely 60 <br /> feet in diameter at the very bottom. The soil smelled very strong <br /> of diesel fuel and had a dark brown color to within approximately <br /> 1 foot of the last evidence of the contamination found.The last <br /> foot consisted of sandy material and a heavy concentration of <br /> heavy bunker oil . This was cleaned away and added to the pile of <br /> contaminated soil . f=ollowing our plan, we then removed <br /> approximately another 5 feet of soil under the last evidence of <br /> contamination and then encountered groundwater , which has now <br /> partially filled the excavation. <br /> We have stockpiled and separated all of the excavated soil . The <br /> contaminated soil is on site in two locations . The largest pile <br /> is from the second excavation and is located on the southeast <br /> corner of the property, on a concrete slab of approximately one <br /> acre in size. It is on plastic and covered with plastic. It is <br /> approximately 4000 cubic yards in volume. <br /> The smaller pile is located in the north central portion of the <br /> property and is on a paved asphalt slab, on plastic and covered <br /> with plastic. It is approximately 1200 cubic yards in volume. <br /> The total �r`i. :_:_f-nc-luding clean soil , ex avated is <br /> approxi m tel - 10`000 cubic yaids. <br /> ��� r <br /> --- yt�ti aua a <br /> After excavation was completed, the ownctrs `f`i red Canonie <br /> Environmental to take composite samples from around the bottom of <br /> the excavation and the groundwater present in the excavation. The <br /> results showed "non-detectable" levels of all constituents of <br /> petroleum hydrocarbons ( results are enclosed) in both soil and <br /> water samples. <br /> At this time the owners are requesting permission to pump the <br /> groundwater from the excavation and begin to start backfill and <br /> compaction. Prior to this, if the SJLHS requests , we are prepared <br /> to take additional soil and water :>amples from anywhere the <br /> county requests , pertaining to the excavation and contaminated <br /> piles of soil or any where else they deem necessary. <br /> We feel 5JLHD expedience in handling this matter is espicially <br /> important for several reasons <br /> ---------—- - ---- - - -- --- -.--F i_r_s 2.:------Th. e.-- t r-erne.L'--.s a n d.y--S o i ]----and----- <br /> subject <br /> ---and----subject to cave. in. <br /> Second: The water collecting in the excavation is, at this <br /> time, approximately S to 10 feet deep and an atrractive nuisance <br /> 6 <br />