2002-07-12_REVISION - M1983208 - Laserfiche WebLink

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JUL-12-02 02:08 PM DOUG CONGER 970 565 8394 x'•02 6) 7j 8) 9) 10 11 12 13 14 lncluded in the listing of "hazardous wastes"• Trace amounts of fugit(vo formaldehyde arc indeed rtporied to be generated in the hot berthing operations, however they are coavidercd to be Insignificant by those Agencies because then production is so minute. If D.M.C. has infbrrnation to the contrary please advise us for such a basis. Montrose County Enginccrs agrcc that a layer of loose material is desirable beneath the placed topsoil in the gravelly soils remaining in the pit sideslopes, where topsoiling and rcvcgelution is planned, Shape-grading or rip-loosening to a one-foot depth within that subsoil material best serves that purpose. Rip-loosening to greater depths. however, maY dislodge and ineorporato large boulders that make surface-smoothing and consistent topsoiling difficult, which would compromise the goal of swell-loosened suhsurface. '1'hcreforo t}x:y feel more comfortable with specifying a minimum requirement of one filet of loosened subsoil beneath the placed topsoil. and so specify in amendments to the "Exhibit E" `Reclamation Plan'. Nv a:plosives arc to be used in conjuction with the mining and reclamation operations. That assertion has been added t0 "Exhibit D" `Mining Plan, Section [i]'. Curn`ntly approximately 2'h acres of the previously mined arcs between Shavano Access Road and the west property boundary have been successfully reclaimed. The County would prefer to keep this acreage in its reclaimed state, with removal from the permit area its immediate goal, when no longer needed for the mining and aggregate production operations, Disturbed areas across the access road to the northeast are currently utilized for equipment 8r, materials storage, and for topsoil and products stockpiles. Eventually that area too Is planned for reclamation, when mined-out pit operations/storage areas can be utilized closer to the active mining and production. Por the time being, however, the County Enginccrs wish to keep ttu options open until more worked out pit area 1s available after complete extraction of resources in the central, current mining portion of the permit area. A minimum of six (6) inches has been specified fbr reclamation topsoiling, where topsoiling is indicated in the revised "Exhibit E" 'Reclamation Plan'. The operation is not expected to d'vectly affect surface or ground water systems. That a.9scrt(un has been added to the fast paragraph of "Exhibit G" `Water Information, Sect. 1'. No additional water consumption is expected for operation of a hot asphalt plant, since any plan) used is expected to utilize a baghousa for control of fugative emissions, thus reyuirng nv addilonal water resources. j The last paragraph of the "&xhibit G" `Water Information' is accurate in essertinu Lltal "Nn acid, arxie, nor huzurduuv waste prodrrcfx she!! 6e irrvalved in the proposed anion." Pmduclion and storage of asphahic concrete "mix" is not considered by rho Air Pollution Control Division nor Ha7srdous Waste Division of the Colorado Department of f lealth and F.nvironmcnt to he included in the listing of "hazardous wastes". Trace amounts of fugitive formaldehyde are indeed reported to be generated in the hot botching operations, however they are considered to be insignificant by those agencies because their production is so minute. SCS descriptions have been added for Soil types "Ru", "Rr", and "ShC" to "iixhibit I" `Soils Description', and "Exhibit C" `Mining Map' has been accordingly labeled. Please note thol those soils, although within some of the permit area, are not to be affected by site opcralinns Only "MIA" type soils are involved in reclamation operations at the site. All others are off the moss top in areas of no disturbance. The 5CS descriptions given in the "Exhibit 1" Soils Description list thickness and suitability for plant growth as tbllows. "In their natural state Mesa sells support a good cover of getters, Indian ncegtase, ne0dle~nd- lhread, blue grafTta, and (pdGdy pearl eaetua.° EYhlhit I &oils t]escrtptlon also asserts that...