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EXHIBIT J <br />Vegetation Information <br />Vegetation information was gathered from the Soil Survey of Weld County, Colorado, Southern <br />Part (United States Department of Agriculture, Soil Conservation Service, 1980). <br />The proposed site is within the boundaries of an existing sand and gravel mining operation (M- <br />1977-081). This area was previously mined. There is very little undisturbed ground, however <br />previous reclamation efforts look good. The majority of the site is open water. The following <br />indicates the vegetation that could have existed prior to mining. <br />3 - Aquolls and Aquents, gravelly substratum. The potential native vegetation here is <br />dominated by alkali sacaton, switchgrass, and westem wheatgrass. Saltgrass, sedge, rush, and <br />alkali bluegrass aze also prominent. Potential production ranges from 3,000 pounds per acre in <br />favorable years to 2,000 pounds in unfavorable years as range conditions deteriorates, the <br />switchgrass, alkali sacaton, and western wheatgrass decrease and saltgrass, sedge, and rush <br />increase. <br />26 - Haverson loam, 1 to 3 percent slopes. The potential native vegetation here is dominated <br />by western wheatgrass. Blue grama, switchgrass, sand reedgrass, big bluestem, slender <br />wheatgrass, indiangrass, and green needlegrass are also present. Potential production ranges <br />from 1,600 pounds per acre in favorable years to 1,000 pounds in unfavorable years. As range <br />condition deteriorates, the tall Brasses decrease, blue grama and buffalograss increase, and forage <br />production drops. Undesirable weeds and annuals invade the site and erosion can occur as range <br />condition becomes poorer. <br />ZS'" Avem~e Side <br />OMG 117 Pe~mii <br />Page 17 <br />