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~~ F•?CHIBIT <br />SHEET 1 of 5 <br />CITI' OF LAMAR <br />°a BILL THRAILKILL <br />PLUBLIC WORKS DIRECTOP. <br />P.O. BOX 270 <br />LAMAR, COL~~RADO 81052 <br />Re. LAMAR INDUSTRIAL PARK GRAVEL PIT <br />SW1l4 SECTION 29-T22S-R46W <br />B ~ FEB 19 3:sSi <br />SOIL CONSERVATIDN SERVIr_E <br />P.O. BOX 471 <br />LAMAR, COLDRADO 81052 <br />FEBUARY 17, 1987 <br />Soils in this area are shown on Soils Sheet no. 28 (attached)-they <br />are La-Las loam O to 7% slopes and Lv-Lincoln sand O to 1% slopes. <br />La-Las loam-surface soil is a grayish-brown loam 10 to 20 inches <br />thick; subsoil is a grayish-brown to dark-gray loam or clay loam and <br />is at a depth of 36 to 40 inches. The substratum is generally <br />stratifies loam or clay loam, but in many places it is sandy and <br />gravelly I~etween a depth of 36 and 60 inches. <br />Lv-Lincoln sand-surface soil is a brown or grayish-brown loamy sand <br />or light 'sandy loam about 5 to 10 inches thick. Normally, the <br />subsoil and substratum are stratified with lenses of sandy loam and <br />sand. Depth to the underlying sand and gravel ranges from about 16 <br />to more than 60 inches. These soils are a good source of gravel and <br />sand for concrete and road fill. <br />This area was used as irrigated cropland in the past, however it is <br />presently in a non-use state being allow~rl to return to a native <br />condition„ "fhe present plant population consists i:f approximately <br />lOX (by wit.) Sand Dropseed, 90X Kocra, r2ussian thistle, Tansy Mustard <br />any other annual weeds and grasses. <br />If the planned land use is to be Wildlife Habitate following gravel <br />mining operations then the top foot of soil should be stockpiled <br />during thc~ mining operation and returned as top soil to the site <br />fiollowing completion of the gravel minim . Where stockpiles will be <br />s~_,ed for' long periods, they should be seeded to protective cover. <br />Small grains such as wheat, barley, and or sorghums may be used as <br />temporary cover. <br />When r^claiiming the site following the mining operation the steeper <br />slopes should be 3 to 7 or flatter. One foot of t=pcoil c....ld be <br />returned to all disturbed areas of the site (includeing steep slopes) <br />and a seecl mixture similar to that shown on Form CO-ECS-S (attached) <br />should be planted to establish a permanent cover. <br />i <br />Sincerely; ~ ,.~.. <br />/ !' <br />,, <br />ONN L. BATES <br />`'SOIL CONSERVATIONIST <br />,'t <br />• <br />