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_~ -, ; • EI Paso County Planning Department ~.r~ July 1, 1994 III IIIIIIIIIIIIIIII 999 ,.._ u,~.. /U~ ~' 19~ ~'~,, Colorado Division of Minerals & Geology U „r'~~Vry~ 1313 Sherman Street, Room 215 + 'Lys Denver, Colorado 80203 ~s,. RE: Permit Amendment Applications for M-77-211 and M-77-210 To Whom It May Concern: EI Paso County Planning Department staff have briefly reviewed the above-referenced 1994 permit amendment applications for Castle Concrete's Pikeview and Snyder quarries and have the following comments: 1) Both sets of revised plans appear to be consistent with the proposals which were approved in concept by the Board of County Commissioners in 1993 and will potentially allow for the enhanced reclamation activities agreed to in principle at that time. 2) We are not technically equipped to comment with respect to geotechnical issues, particularly in association with the Snyder application. Geotechnical and safety and reclamation concerns do appear to have been addressed in detail in the applications. 3) Compared with the plans now in effect, these "overexcavation" approaches will certainly have less of an ultimate visual impact. However, during the mining process there may be an increased visual impact from materials stockpiles, especially in the case of the Snyder operation. Page 15 of the Synder application describes Phase WP (the overexcavation hole) as having to be completely mined out before backfilling occurs. This may necessitate substantial interim stockpiling of waste material. The Planning Department would suggest that the stability and visual impact 9spects of these activities should be fully evaluated and mitigated to the greatest extent possible. 4) Page 5 of Exhibit G from the Snyder application references the possibility that sediment could escape into Williams Canyon, especially in conjunction with construction of the west drainage pond. Steps which "should" be taken to reduce this impact are dis- cussed. The Planning Department would recommend that this issue be further evaluated and the language strengthened to mandate a timely sequencing of drainage improvement activities. 27 E. Vennilo (719) 520f300 P.O. Box 2007 Coloratlo Springs, Colorado 60903 FAX (719) 520396 Colorado Springs, Colorado 80901