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<br />N <br />Mr. Lav-ry Resckl~e <br />April 2, 1980 <br />-5- <br />N <br />In the present refuse disposal area it is stated that dirt will be <br />pushed up the hill to cover the refuse pile. Does this spoil have any <br />coal slack or contaminants iri it? (717.14(e)) Garments an refuse <br />pile stability, toxicity, and associated water probl®s will follow when <br />reviewed byy tectmical staff ' Some CrO rn m E>>,7 ~, ctr ~ C{ rt a / ~co c f{' r n ~i~2 <br />E?pril 3, (98Q rrinr~.o ~O}n, T'.;, ~~ i:;//~ ~ri-:t , <br />For the drain~e on which the proposed sediment pond dam will be built, <br />a longitudinal profile is needed. This can be taken from contour lines. <br />Cross sections of the stream channel will aid in restoring the channel . <br />at reclamation, and should be taken in any part of the drainage to be <br />disturbed. (2.12 (5)) <br />A plan is needed for disposal of coal slack frcm the proposed dam azid <br />bench area, if spoil fran the dam is to be used to extend the bench. <br />Is this extended bench to be temporary? plain how reclamation will <br />take place. Aarnmt of coal slack is needed, and how it will affect the <br />present calculations far the refuse pile. Records of devth of coal slack <br />should be kept to aid in calculating extent of coal slack over rama;ni a <br />areas. Will there be enough overburden to cover the coal slack? If plans <br />for Phis bench are submitted, adjustments on sediment control must be <br />addressed. Also, any work done in the portal area must be adequately <br />addressed. (717.14 (a)) <br />~~. <br />With excavation of the sediment pond, specify where topsoi will be stock- <br />piled and how it will be stabilized. (717.20 (a)) ~ Py~ ~ ~,n~,,, <br />A better idea of the a[mtimt of coal slack is needed, its depth, and haw <br />much it has affected topsoil. Staff will work with you on this problem. <br />(717.20) <br />Staff has cane up with a suggested seed mix for the Red Canyon ~~1 Mine; <br />(this is subject to change after baseline study): <br />Pounds/Acre <br />Tall Wheatgrass 4 <br />Western Wheatgrass 6 <br />Sodar Streambank Wheatgrass 4 <br />Basin Wildrye 3 ..-. <br />Manchar Smooth Branegrass 1 <br />Sweet Clover .5 <br />Pubescent Wheatgrass 1 <br />Rabbitbrush 2 <br /> 2~5 <br />Sage (A. Tridentata Vasenya) 2 <br /> 2_~_ <br />