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5. Ventilation. After roof s~_rppnr•t has been established, <br />ver~tilatior~ will be rester^ed to the face by reharigir~g <br />and exteridir~g br^attice ~:r vent t~_rbes. Restored <br />ver~tilatior~ to the face will pr•ever~t large accurnulatior~~; <br />~f gases s~.rch as methane. <br />E. Clean-Uo. Ri6 sl~.iffing and spillage will occasionally <br />occur at the wor^k.ir~g faces. The ribs will be shoveled <br />c~r^ cleaned ~.rp bef~~r•e the next c~_~ttir~g sequence begins. <br />7. Rocl<. D~.,st irk-. The er~tr^ies wi 11 them be r^nck d~_rsted <br />by hand or machine tc. keep coal dust accumulations to a <br />mininnun. <br />• F'illar^.Cxtr~actic~r~_ The cycle of rnir~ing fc~r pillar <br />extraction is the carne as development, with the sequence cif <br />c~.rts changed. f=~illar^s will be ex~tr^~ac~ted ire sequence as r^o~~rn <br />developrner~t cor~~tir~~aes or. r^etr•eat towar^d the rnairi er~tr^ies. <br />Coriser•vation of C~~al Resc~~_ir^ces <br />La Plata Coal Corp. will cc~ristar~tly strive in its rnir~ir~g to <br />r•ecc~ver^ the rnaxirn~_rrn c~~al t~~r~r~age that earl be pr^actically <br />r^ernoved. The overall goal cif La F~lata Coal Corp. with <br />respect 't c. c~~al r•ecc~ver•y is t~~ gn well beyond the due <br />diligence, or^dinar^y care, grid ger,er^ally accepted rnir,ir~g <br />practices req~_rired to rnaxirni=e .coal production. Maximising <br />coal prodyrctinn while rnirrimi~iny unnecessary costs are items <br />c. ~r5-12 <br />~ -~~-~ ,~ <br />