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II IIIIIIIIIIIIIIII <br />~~ United States Soil <br />\ ~ Department d Conservation <br />Agriculture Service <br />• 1228 Main Street. Longmont, CO 80501 September 22, 1980 <br />. .... <br />,- <br />Mr. Mack Graham ~~ ' <br />Western Paving Construction Company <br />P. 0. Bax 21649 <br />Denver, CO 80221 <br />Dear Mack: <br />In answer to your request for soils and reclamation information on the <br />above parcel of land, we offer the following comments: <br />1. The soils and present land use are almost identical to <br />that already under permit. <br />2. The soils are predominantly of the Niwot series which are ~' <br />deep, somewhat poorly drained soils that are shallow over <br />gravelly sand. These soils are fo med on law terraces and <br />bottom lands in loamy alluvium superimposed over sand and <br />gravel. The native vegetation is mainly brome grass and <br />water-tolerant grasses. In a representative profile, sand <br />and gravel occurs at about 14 inches. <br />Niwot soils have moderate perTeability. Availabie water <br />holding capacity is low to moderate. Roots, however, can <br />penetrate to a depth of 60 inches. All of the acreage is <br />used for pasture, but sand and gravel mining of this soil <br />is increasing and is a recognized use in agricultural zoning <br />in Boulder County. -• <br />3. The reclamation plan should include: <br />a. Embankments should be sloped to not less than <br />3:1 to support plant growth and for safety <br />purposes in future use. ~~ <br />b. Seed to a mixture: <br />Smooth brome (Manchar) 6.5,i P.L.S. <br />Orchard (Latar) 2.ON P.L.S. <br />Alfalfa (Ranger) Z.0li P.L.S. <br /> <br />