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' - - ~ _ . <br />• ..~ ~. <br />~. - .ENVIRONMENT, INC. ~ ~~I '~ - - - ~ ~ PAGE 4 ~~ , <br />' MAY 1 5 200.8 • <br />f~ <br />' 1,. <br />- I - <br />. .. ~ ' <br />• ii ' .~ <br />"~ expect ,the excavation area to be filled in within 18, month of .'the ~~ <br />commencement of. mining. ;i <br />As"noted .above no dewateri.ng will take ;.place during minng'or.-reclama-'' <br />'tion for this''mine.~ So!.the groundwa-ter drain"will not be impacted._ <br />- As stated in response to the Mat1erials`Handli.ng section for.ahis <br />response•the-fill-material, will beinert material will some-aged <br />concrete fragments. mi.xe.d'° in from 2 ..foot above _the water. line .to the ,:• <br />- mine. floor.,-As 'noted, at~-our~Fernald Inert, Landfill oper'ation,~south <br />of this mine; we., have• npt observed , a problem with .hydrocarbon ,leachiri.g <br />out"of the fi17 material. The ground water sampling. done,'at-that ' <br />' operation has not shown!any..increase of hydrocarbon levels over back .` <br />,ground', levels since fillirig_ began ,more that 10 years' ago. ,- We do not' <br />expect. there. to be any 'problems atthis site since no asphalt ,material <br />: will be placed below the water table: -. <br />I •' :: ~ _ <br />The well•s~ we said would'; be removed were those. located. around tlie; " <br />residence within the mining: area.. .Ben .Frei: met with-the Gity's staff" <br />and they indicated there would'be .no~problems~ removing these. wells <br />since .once the, house wa's moved they.would not be .needed. Their . <br />monitoring weals.,.outside-the mining area ,will not be disturbed .and... ~. <br />would be.'helpful to monitor-groundwater levels as filling•takes pTace.•~ <br />,We 'believe that ;Thornton's horizoritai groundwater drain .would regulate <br />the ground 'water level in. thin area: _ ~ ~ ,' <br />I will, also pl,ace~•~a.,copy, of this response, packet and. your adequacy ~ , <br />letter in t'he Adams County~Clerks copy and send you a proof 'of_place- <br />merit. If you~have any ;questions or need more,-information please call <br />' f ` . <br />Sincerely.. : ~ ;, '. r . , <br />Environment.; Inc. ~ .. <br />- ' Stevan "L. ,O'Brian. ~~. '~ • ' .. • <br />President ,i - <br />_, ~ . <br />cc Albert. Frei and~Sons, Inc ... <br />Adams.County:Clerk ,: ` <br />file ;~. - <br />enclosures. ~ - <br />•. _ '' ~ ' , <br />. ..• - - -: <br />~. <br />' - ~ ~~ _ .. <br />' _ .. • <br />