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<br /> <br />Date SE6?e-_`__r_3~laE_ <br />DUST C0.':TROL PP.AC7ICES Ih Trit FACE AREA <br />!fine rase ___E~lg_¢~._______________ Type of Mining end Section <br />Hauling Equip¢ent: <br />!fine I.D. Ko.: __C5_Q13?C _2_4Qn?in~~Qus_Nin~rs_________ <br />NM L' I.D. No.: OC3-0 2 Shuttlecars <br />----------------------- -------------------------- <br />Designated Occupation (D.O.) __036 <br />-------------=----------------- <br />The following parameters ere hereby adopted as part of the ventilation <br />system end •ethane end dust control plan as per Sectio^ 75.316, 30 <br />CFR. <br />// s- ,; <br />S' ignatureJof Company OffSciel-~ L <br />• <br />1. The aiaicum sean entry air velocity aeinteined in the working <br />place shall be ____60_____ feet per ainute. <br />2. Line brettice shall be kept 15' from sad tubing shall be kept 10' <br />from the deepest penetration of a face from which coal is beieg <br />aiaed or loaded. <br />3. The siniaum quantity of air reaching the working face or loag~ell <br />face shall be __6~OG~____ cubic feet a ainute. <br />4. The following water suppression systea shell be aeinteined sad <br />operated es follows: <br /> MI?;iMI:M <br /> HOOF OPEP.ATII;C <br />FQUIPMEt;T DESCRIP. SPRAYS T5'PE OF SPRAYS PRESSURE <br />_J~ 12_CN_ 1168 ------_ --~Q--- --E1n~L S_Z'~illCL---- - =~ D51----- <br /> <br />5. Other controls or practices: A curtain will be hung dust ir.by the <br />continuous eiaer operator. sad ucder peraeaently supported roof. <br />• Thia curtain will reduce entry area sad create a h'_gh ~elecity <br />area which will help prohibit dust fro¢ acing outby. (See <br />sketch o^ pg. 37e) <br />-37- <br />