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<br /> <br />Exhibit J -Vegetation information <br />Native vegetation in the potcntial plant community would include mainly Indian Ricegrass, <br />Bluebunch wheatgrasses and alkali sacaton as the predominant grasses. The chazacteristic <br />undisturbed plant community based on associations with soil types is given as follows: <br />Soil Type Species Percent Composition <br />Kim loam Indian Ricegrass 15 <br />Bluebunch Wheatgrass 15 <br />Prairie 3unegrass 10 <br />Muttongrass 10 <br />Western wheatgrass l0 <br />Big Sagebrush t0 <br />Needle-and-thread 5 <br />Low rabbitbrush 5 <br />Wann sandy loam Alkali Sacaton 35 <br />Saltgrass 10 <br />Baltic Rush i0 <br />Low rabbitbrush ]0 <br />Skunkbush Sumac 10 <br />Sedge 10 <br />Under favorable conditions the Kim and Wann soils are capable of producing 1,000 and <br />2,500 pounds per acre dry weigh[ respectively. Unfavorable conditions reduce the estimated dry <br />weight production to 500 and 1,500 pounds per acre respectively <br />The location and type of the vegetation on the proposed site and surrounding area is presented on <br />Exhibit C - Premining/Mining Plan. <br />I. Existing Disturbed Area -- Phase I and Phase llt Areas <br />The site exists on slopes that range from nearly level to a Few percent. The Phase I area <br />has been previously mined and is nearly completely disturbed (MII~pVS/Chambers Pit}, Prior to <br />disturbance, this area was classified as having a Wann sandy loam soil type. Some Tamarisk has <br />invaded the pond slopes and some grass and grass like plants are evident. Cottonwood trees exist <br />in areas which have not been disturbed for many years. The Phase Ill area has been mined in the <br />recent past by Elam Construction. Cottonwood trees and Tamerisk are located along the buffer <br />zone between the disturbed pit area and the river. Most of the ground surface is bare. <br />Page I - 1 <br />