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06/09/98 12;56 'x`4417425 CITY/ELK RIVER <br />Debs~~ McDonald <br />USA Waste Services, lr',c, <br />825 Easf 2nd Street <br />L~li~e Earth, ]v1N 56013 <br />RE: Llk River .Landfill, AppIxcatian for 1'eruut Ivlodificatic~z~ <br />Dear 1V]s. IvlcDonald: <br />Q}ooz <br />The fol (Awing corrunents are a suaura-ary of the concerns and reclutzemcnts frvm the lvlinnesota <br />Pollution Control Agency (N.tl'CA), Sherburne Cpun and the Cit of EIk River rc ardin <br />Applicatia~ f~~r Permit n'lodi~ication, dated t~pri1 199. y g ~; Your <br />1. °l'hc final cavcr system s}xdll be designed aeeurding the ~zzutvt:ipal solid ~ttste (1VlS W) standuzds. <br />2. It is taoted that the liner and leauhate collection system kor the proposed deiliolition cell dues not <br />meet design ar,d constructiUn standards for MS W and/or industrial. waste disposal sires. As a result, <br />only demolition defaris and new eonstxuctxotz debris wilt be allowed f+ar disposal in the proposed <br />axes. Sea Attachment A fnr dcfizutiQns of allowable waste ,materials. <br />3. A. liner system shall be t'equired for the deniolitian debris horizarttal expansion arc3 and shall b.e <br />reg2tired to have a mi~umum ~i~. inclzas ~~fclly anti a 40 m.ii kle.Eible menlbraae liner_ Tlta clay shall <br />have a ttxa~irnum pe~T1eAbility of 1U'~ cmisec, Scc Aitachnladnt I3 for nA/nG requirements for liner <br />eonstruclxUt~. <br />4_ 'The 906,300 cubic yards of axe space capacity proposed far the praposecl deveInrment shall be <br />catttttecl as a partiozx cf the 4,~'b,2t)(? cubic yarrds of "r~:serve caPs~Gity" for the site. <br />5, Tlaa plan Sheets shall be revised tc~ show the devalaptneut oC the site qtr two-year phases. <br />Deveiupment clans siiall indicate the sequr:rice ot'ftlling tar each phase, access to rize working face <br />and placement of final cover. The ecigineering repart shu[1 be revised to irzc:luds a narrative to <br />describe haw each develripment phase will be filled, hc~w surface wK fee wilt lae matlaged and how <br />vehicle aCcoss wilt be provided, <br />~ d. Tha Platt sheets Find engineering repart shall he revlsc;d to provide vehicle access f'or operation and <br />m~untenance of the new lcachatC managetnent facilities, existing and future landitil gas (LFG) <br />~ extraction. systctn coiriponents acid rzaaintenanaa of final cover. <br />7. 7'he post-closure aperatioti and .enaialt~:nance perit~tl for the proposed developrrtent shall be <br />modiFed to cover 30 ys;ars. <br />EXIiI13IT 161 <br />