Laserfiche WebLink
a, vAS'k S : x~ ~ ~ ~• <br />b ~ 3l4'`I° ~R'4'1'~,~.=+~6RtCULr'TURE" <br />~ S <br />qtr ~ Y~~.tpA15E~2VAT~RI/1GE ~ ~ . <br />- 6l:.~.gox 863, Salida, Colorado 1$i2Di <br />-~-.LIV <br />I January 9, 1979 ED <br />JAN ?° 19;9 <br />~' R~"~ n ` <br />'.r~r~~' ~oias~iltbtion r,. ' ~ 1',S/', r'!. ; J ~~~ ON <br />~!£~.BGa GG ~ . ~. <br />l~uena ~Fista, Colorado 61211 ', -• ~=~~rCes <br />- _ ~ <br />~ieafi ~ _~53~ <br />~,'.t . <br />',(~if.'a, is a report on the items you requested from me concerning <br />' Drov4~i.On needed for a mining and reclamation permit for the 'town <br />•' ~' ii~° .i~tiet~a 6rista,.pid Avery Gonstraction Company. <br />•.:: <br />":: a: <br />the 8•~ls of'the pits you have described are all mapped in the Chaffee- <br />I,ake Area ,Soil ~rvey as Dominson gravelly sandy loam on 1 to 9 percent <br />•ilopea.., (See attached map). The Dominson'~oil, because of its coarse <br />~exturey'retaine very little xater. The site is in an 11-inch annual <br />oci~.#,ation moss. These two features cause the soil to be very <br />~rpughty~. paly drought resistant plant species can exist on this site <br />alli't'~+iiut..sapplatuental irrigation. The topsoil is a~,proximately six_ inches <br />~;-~F1ick pfd "1s'_a gravelly sandy loam. The next layer is about five inches <br />k:and; :is' a very gravelly sandy loam. 9elort eleven inches gravel and <br />'C ~i7;q,~' extend more than 60 inches in depth. The top three inches are <br />-not acid or alkaline. below throe inches the soils are mildly alkaline. <br />$his.'aoil.iey very rapidly permeable. 4later holding capacity and natural <br />iart~.lY~y are low. <br />~! ~~a~rseq, fortes and shrubby .plants exist at the site. The main <br />&g6es ar$ Indian ricegras.s, needle-and-threadgrass, spike dropseed, and <br />~. • , <br />,glgral67~s .Qt~+er.ga~aeaes .located at this site are blue grams, <br />~8aid iir0pseed, squirrel tail, and slimstem •nuhly. The forties and shrugs <br />~'.igaaCdeijl pea, scarlet globemal3owy yarrox, buckwheat, fringed sage, <br />r',~ear cactus, yucca, apache plume, snake xeed and rabbit brush. <br />~~ <br />'~`heila$ter~tsed precip~at:,on map shows the ~•ravel pit site to be in <br />a'pproxtmately a 10-11 inch average annual precipitation zone. The izighest <br />precipitation nonths are April, Piay; July and Au~xst. There are 75-100 <br />frgst free Says. .overage mean monthly temperatures range from a low of <br />28"F .in T~cember and January to a high of. 63°F in July. <br /> <br /> <br />~•:F <br />7F: - <br />~.: <br />~- . <br />The folloxing are my recommendations 3'or reclamation, after gravel extraction <br />at the pit site. All slopes should be gradually graded into the surrounding <br />natural ground lines. No elopes should exceed a three to one horizontal to <br />vertical ratio. <br />0 <br /> <br />