Laserfiche WebLink
Page 2 of 6 <br />caused extensive damage to the 83rd Joint Venture mine site located east of the Iverson Mine and <br />involved the Boyd Freeman Ditch located adjacent to the Iverson site. <br />Response: The Applicant will provide a response to this comment at a later date. <br />17. The Applicant intends to install a conveyor structure to transport material to the 35th Avenue site, File <br />No. M-1977-036, for processing. The conceptual drawings included in Exhibit C are not adequate. <br />Please provide additional information regarding the conveyor structure (i.e. composition, length, <br />width, height, foundations, etc.) and a specific plan for reclamation of the structures. <br />Response: Additional details of the conveyor structure have been added to Exhibit C <br />(Attachment 1). The conveyor structure will be anchored to the ground with rebar; no <br />permanent foundations will be needed. Therefore, there will be little ground disturbance under <br />the conveyor, once the conveyor is removed, the land will just need to be reseeded. <br />Please clarify if the conveyor structure foundation at the bike path conveyor crossing will be anchored <br />to the ground with rebar. <br />6.4.5 Exhibit E - Reclamation Plan <br />Question #18 was answered satisfactorily by Applicant in the April 29, 2011 response. <br />19. The Applicant states the availability of the proposed seed mixtures may dictate the need for variety <br />substitutions. Once approved by the Division, a revision to the seed mixture would require the <br />Operator to submit and get approval for a technical revision, per Rule 1.9, to alter the seed mixture. <br />Response: Lafarge understands that a modification to the seed mixture would require a <br />technical revision. In addition, as part of the Weld County USR review process, the County asked <br />us to modify the proposed seed mix information listed in Exhibit E and F. Attached are updated <br />versions of Exhibit E (Attachment 6) and Exhibit F (Attachment 7). <br />The Applicant did not revise the seed mix for topsoil/overburden piles listed in Exhibit c to match <br />Exhibit E and F. Please clarify if the Applicant intended to revise the seed mix to correspond with the <br />seed mixture for Upland Areas. <br />6.4.7 Exhibit G - Water Information <br />Questions #20-22 were answered satisfactorily by the Applicant in the April 29, 2011 response. <br />23. The Applicant states dry mining will occur at the site, and a rather limited extent of drawdown due to <br />the mine dewatering operation is projected beyond the Iverson property. The Division requests the <br />Applicant quantitatively define or predict the cone of depression expected for any areas to be <br />dewatered and dry mined. The cone of depression and assessment of other effects should define, at a <br />minimum, the horizontal and vertical extent of expected impacts. <br />2