2010-02-25_REVISION - C1981022 - Laserfiche WebLink

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Sedion - 2. 05.4 Waste paper, timbers, pipe, supplies, cardboard, and other miscellaneous trash is collected and temporaril stored in the cast stora y ard, with periodic pickup b a licensed disposal contractor for transport and disposal M' the Delta Count landfill. Scrap stccl, us cad c e parts, electrical cable, conve beltin and used tires are temporaril stored in an area near the dump station and periodicall picked up b a salva contractor. An of these materials remainin at the dme of reclamation and closure will be handled and disposed of in accordance with these normal operatin practices. Debris resultin from dismantlin and removal of surfacc structures and facilities durin site reclamation activities will g encraR y consist primaril of scrap steel. and concrete rubble and will not include acid-formmi toxic-producin or flare mablc materials. Demoll(Ion debris will either be hauled off-site for salva or disposal in a licensed landfill or will be used as back fill or buried in placc. An demolition debris used as backfill or buried in place VVIII be covered b a minimum of 2 feet of suitable non-flammable co-%Tcr material. Measures for Sealingr. Plugp_ing. and Managine Mine ODeninays and or hole Mine openin and boreholes, includin rnine portals,, shafts, declines, and exploration drillholes, de- borcholes, and fire control and monitorin borcholes wifl be plu and sealed M accordance Vaith applicable provisions of RuIc 4.07 to effectivel prevent access to under mm'e workin and to prevent ='xin of surf-ace and g round water draina and dischar of acid or toxic draina to surface or g round water.. Section 2.04.6 - Geolo Description and Section 2.04.7 - H Description provide ex ten live description of subsurface ph chemical and h properties. These sections describe the site specific g eolo g ic and h conditions for the name permit area and ad areas. TI-iese sections extensivel discuss 1 the lack of an definable a in the coal bearin units and 2) the lack of an si acid or toxic producin materials in the coal bearin units. Nfine portals and declines wrill be sealed b constructin solid block seals a minimum of 25 feet in from the portal or decline surface openin as illustrated b the fi 'r y pical Cross-Scctiors - Nfine Seals, in Exhibit 2.05-E5, Reclamadon Details. The portal or decline entries will then be backfilled from the seals to the surface openin with soil and broken rock materials. Rer-lamation will be completed b backffin and g radin g the areas around the backfilled opcnin to completel cover all portal structures, establish a stable slope confi and ehniinate an cxposcd hi all areas. 1\&ne shafts Will .be sealed usin one of the followin two methods, dependin on site conditions and a fter con s ultatio n Nvith the DMG: • permanent reinforced concrete cap %6th vent pipe, compl with applicable MS re could b placed over the shaft openin • false deck could be established b installin lateral support beams into the rin beams within the shaft cellar and placin dockin over the support beams usin cithcr steel plate or expanded metal and reinforced concrete. The remainder of the collar would be backfffled with material previousl exca-vated durin shaft construction. ]Exploration drillholes, porch olds, and wells will, be plu and sealed b g row tin the portion of the hole cxtcndin into and up to 20 feet above either mine workin or a water-bearm zone, backfillin the remainder of the hole to Within 10 feet of the g round surface vvith overburden materials, drill cuttin or a bentonite t plu g el or chI and cementin the rernainin 10 feet to Surface. An casin extendin above the g round, surface N 1 be cut off and the hole location marked after reclamation is completed. Gob vent boreboles consist of a steel casin alread cemented in place. As noted -above, ORILC g ob vent boreholes are not located in zones containin a or containin acid or toxic formin geolo zones. Further, g ob vcnt boreholes are not completed in any. all-Livial/colluvial water bearin g eolo g ic e 'IR-66 2.05-69a Revised Feb. 2010