2002-10-15_REVISION - M1983208 - Laserfiche WebLink

Home Browse Search

MINING PLAN EXHIBIT D jli~res K Rem §aa a~ CONSTRUCTION MATERIAL Foe N° M 1983 208 ReoVLAR 112 OPlRATION NW'/. Set 11, T48N, R10W "SHAVANO GRAVEL" January 2002 - 112 Amaadmerk (r~viatd 11 Oct 02) ~a~ Open pit mining operations shall fx employed at this rile, utiliring tracked bulldozers to extract and pile tlx gravel resources and w}xrlcJ lixnttdoaders to load the processing equipment hopper. I{straction shall be at full depth of ttx grovel deposit resource, and at full width ul tlx unit lx:ing currently mined, txginning from the previously mined centrsl portion of the permit area and progressing first to "daylight" the excavation out to the x~uthwrst edge of the nxsa-top, then pmce~tl xiuttxast w the pcrnrit mining limit. An existing access road fiom Colorado Ilwy ~)U. having a historic perscriptivc eaxment across lIS (iovernmcnt Imxis in the i~li'.'. VE!-'~ of ticctiun 11. serves the north~~rst a>nxr of the current permitted I 1131 mining operation, and continues through the site to the Shavano Cenxtary, adjacent to the e:Let txrundary of the site. A future altcmata access route fmrn Popular Road ntay fk considercil at a later date for implementation ('Technical Revision) at ttte ><~uthaast corner of the permit area. The nartMvest end of the mesa-top Ixaring the alluvial gravel rcs<ntrccs has 1?ecn previously mined and revrgatatcd outside of the current 112 pcrntit urea. Vortharn portions of the current permit area have likawix been mined. and ptmions of the minLti-out pit Iloor are currently used for stockpiling equipment, storage. artd process equipment operotioa and otlx:r production- rclataJ activities. Processing activities shall continue to ~ parfonned in the worked-out portKms of the limner mining excavation that are adjacent to the rcs<ttlrces to he mined. Products are to tx; stockpiled north and west ,just outside of the production operations areas. \4ining excavation, when resunxd, shall tx extended west to the property bcwndury, then x~utherly and easterly from Iha present excavation. The existing access road From Colorado I lighway 9(I to the northwest boundary ul tha site averages approximately 23 feet wide, and shall be used tier operations access in its prcunt orientation and condition without widening nor up-grading. Only normal maintenance grading and surfacing only shall be conducted upcm this access route. 'llx majority of site's storm water runotT shall drain internally tier intiltnltKm into tlxgrovclly soils in lower portions of the excavation. Equipment tirals, lubricants and coolants shall be temproarily stored intennittantly within the permit area, per local and State spillage containment procedurcw. Nommlly such products arc to he dispcacd liom service trucks, which arc based at the olt=site County shop facility. No acid, toxic, nor har~rdous waste pnlducts shall he: involved in the proposed action. A Ixlrtable truck weight wale may he intermitutntly located ann•enient to the access'tuull route at the rwrthwest end of the site. :111 processing vtiluipment within the site is Ixmahle. 1'hcre are presently nut am, and shall not be any shop or nraintenarxe buildings, adits, ventilation shads, or other mining structures at the site, aside from tlx Iwrtahle production cyuipmcnt. ~h~ 1'opsnil, averaging 6 inctxs in depth, togettxr with surface vegetation shall be first stripped tiom mining arras using wheeled front-loaders or tracked bulldozers, and placed in stockpiles outside of the operations and stockpile areas of the worked-out pit. Such stockpiles shall be saedad lilr vegetative cover stabilization with fix critical area sLrd mix (sac Exhibit lit. Ovcrburdcn from Ixneath the topsoil in deptlu of tiom orx alxl one-half to hvu feet slulll ix tall in place arul incorporated in the mined gravel to provide the tines required for the specified gravel mix. E 1 Mon Vose Co Eng! 1 Shavano Grav (Amend I /ErhO