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m. <br /> a - <br /> 5' <br /> 4 <br /> clean LIP <br /> contamina. ion wa obvious b} cs"of the previou5Tltexc ,vationn ,and <br /> done by st�irti1)9 at tar until <br /> P <br /> rnovirig 0uI and and do��a��'ard until no mare cviderce of the cont::m- <br /> ination was found. After reaching the obvious end of this contam- <br /> ination , to make sure all was removed, the excavatior, �"'as exten- <br /> ded at least 5 feet pasi thy-• cnd of Cori laminatian n iall direct- <br /> Tearions . Tho contarninati0r) appeared <br /> t Teri) to becircledapproximatPly aGD <br /> followed a very s)rnetricaI p" <br /> feet in diameter at the very bottom. The soil smelled very strong; <br /> 01 diesel fuel and had a dark brown color to within approximately <br /> I foot of the last evidence of the c, nt zrnination found.The last <br /> foot consisted of sandy material and a heavy concentration of <br /> heavy bunker oil . [his was cleaned away and added t0 the pile of <br /> Following our plan, the then removed <br /> contaminated soi I • g <br /> der the last <br /> approximately another 5 feet of soil und`vatcr , hich,dhas e now <br /> and then encountered groun <br /> partially filled the excavation. <br /> 11'e have stockpiled and :separated all of the excavated soil . The <br /> contaminated soil is on site in two locations. The largest pile <br /> n and is located on the southeast <br /> is from the second excavatio <br /> lab of approximately one <br /> corner of the property, on a concrete s <br /> acre in size. It is on plastic and covered with plastic. It is <br /> approximately 4000 cubic_ yards in volume. <br /> ion of the <br /> The smaller pile is located in the north central <br /> plaspt�ctand c :vered <br /> property and is on a paved asphalt slab, <br /> with plastic. It is approximately 1200 cubic yards in volume. <br /> The total amount of soil , including clean soil , excavated is <br /> 10, 000 cubic yards . <br /> approximately <br /> i <br /> After excavation was completed, the owrrers hired Canonte <br /> A <br /> ft ite samples from around the bottom of <br /> Envrnnxcav to take compos <br /> the excavation aild Lhedetectabieer prey snofrallheconstituents Tof <br /> results showed <br /> petroleum hydrocarbons (results are enclosed) in both soil and <br /> Water samples . <br /> r+` t, <br /> At this tame the owners are requesting permission to puma the <br /> l and <br /> groundwater from the excavation and ,a_egir to start eb�refprepared <br /> compaction. Prior to this , if the ,,,L S requests, <br /> TO take additional soil and Loathe excavationter samples rand om aco,ntaminated <br /> county requests , pertaining <br /> ' %vhere else they deem necessary <br /> piles of soil or an} . <br /> We feel S3LHD expedience in handling this matter is espicrally <br /> important for several reasons <br />----------------------- <br /> First : The open exca-:ati0n is extremely sandy soil and is <br /> subject to cave in. <br /> Second: The water colleczin,-deep tand eanaattractive nuisance <br /> time, approxinnate l } S to 10 <br /> G <br />