Laserfiche WebLink
Section 816.103 (b) Continued. <br />I• <br />l J <br />r1 <br />In summary, no elements exist in the overburden in concentrations that <br />would create any significant toxicity problems as a consequence of <br />leaching. There is a slight potential for plant toxicity as indicated <br />by limited elevated SAR and ESP values in Pit 1. Comprehensive <br />discussions addressing potential spoil toxicity and specific mitigating <br />considerations are presented in Section 779.14 and preceeding portions <br />of this section. <br />Section 816.104 Backfilling and grading: Thin overburden. <br />(a) The provisions of this Section apply only where the final thickness is <br />less than 0.8 of the initial thickness. Initial thickness is the sum of the <br />overburden thickness and coal thickness prior to removal of coal. Final <br />thickness is the product of the overburden thickness prior to removal of <br />coal, times the bulking factor to be determined for each mine plan area. The <br />provisions of this Section apply only when surface mining activities cannot <br />be carried out to comply with Section 816.101 to achieve the approximate <br />original contour. <br />The thin overburden provisions of this Section are not applicable to the <br />Kerr operations. <br />(b) In surface mining activities carried out continuously in the same <br />limited pit area for more than one year from the day coal-removal opera- <br />816-138aaaaaaa Revised - 01/30/95 <br />