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be included in a special study to <br /> addressi nq the di s r, be '=l/c eted b-v OSMRE AFO <br /> PA��E <br /> p_sal Of excess spoil /coal waste. <br /> "Old" Refuse; <br /> At the site of the "Old" refuse disposal <br /> of the refuse that were deposited 'p-sal area we inspected the parts <br /> end of the area we observed <br /> after October 1977. At the west <br /> _bserved the operators efforts toward reclaiming_ <br /> the refuse. The operator deposited to <br /> acre area last fall . The r, Ps��iI on an approximate one <br /> my activity that Occurred was grading r_,f <br /> the Soil materials. We observed erosion extreme west end of the area. c,f the topsoil 1 ,�n the <br /> �sursurface runoff from the area t,_,We were able to follow the route of <br /> fa r:'6 u �r failure omh Dutch Creek-. the Division issued NOV <br /> is seeded and protect replaced topsoil before and after it <br /> Planted in accordance with Section 4. 06. 4 of <br /> Colorado regulations. the <br /> Rock 'Tunnel Disposal Area: <br /> At the rock tunnel disposal area we walked the clean water <br /> ditch. We confirmed that the ditchact perimeter <br /> Observed that material removed fromwthe lsediment dponds tis bein <br /> -Wing. We <br /> deposited on the rnr_k tunnel pile. The material a g <br /> predominanatl_v coal fines. appears to be <br /> as to sampling of the materiI questioned the operators representative <br /> samplinq is not occurrinq• We also discussed representative indicated that <br /> material as an a discussed the placement Of such <br /> indicated that laceved practice, fhe Division representative <br /> Placement of sediment pond clean-out material at the <br /> rr_„_�; tunnel pile is an approved <br /> application package upon practice. A review of the permit <br /> necessary dp ,�Y return to the AF U did not provide the <br /> Y cumentation• In that regard the Division was contacted; <br /> I requested assistance in lr_,catlnq the <br /> writinq the issue has nr-� Proper documentation. At this <br /> the trash disposal area at thetPsoi,ved.� In addition, we observed <br /> three sediment ponds below the rc,ek f the pile. We also checked the <br /> with the ultimate discharge into pile. The ponds are in series <br /> 016. The ponds treat mine water discharge. We <br /> drainage at c�utfall <br /> lowest pond in the series (ci g We observed that the <br /> The r_, 16:► was constructed with one spillway. <br /> operator indicated that the pond was designed and constructed <br /> With the principal and emergenc - nstructed <br /> structure. In this c Y spillway combined in one discharge <br /> case a c-orregated metal pipe is the discharge <br /> structure. The practice was apparentlya <br /> oved byThe Colorado requlations at Section 4. ( 5. EprSedimentthe Pondsvrequire <br /> that sediment ponds be designed <br /> provide for an a , constucted, and maintained to <br /> Ppropriate combination of principal and emergency <br /> Spillways. The Division representative concurred. <br /> was issued to the state Of Colorado Therefore, a TDN <br /> Pursuant to o S/2/87 OSMPE directive entiitledn"Ten-Dayallot'iceivisien <br /> Procedures to Address Permit Nevisions" <br /> number at . The TDN is reflected by the <br /> was forwarded2at <br /> Performance standard rode W, Other on the MSEIR. <br /> The the Division via certified mail from the Carbondale <br /> past office on 6/26/87. At the west end of the rock disposal area <br /> we observed the <br /> operators effnr+= -� ��__,._ . . . <br />