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Exhibit J- Vegetation Information <br />Wetlands <br />During the site visit, no wetlands were observed within the Expansion Area North. Much of the <br />area contains woody vegetation that is indicative of wetlands and riparian areas. However, no <br />wetland soils or hydrology are present within the Expansion Area North. Some large cottonwoods <br />and willows were scattered throughout the area. There was little to no recruitment of these woody <br />species. No herbaceous riparian vegetation existed on the site with the exception of the pond in <br />the central portion of the survey area. This area is manmade, and because of the sand and gravel <br />substrate, the area has primarily been colonized by reed canarygrass, willows, and knotweeds. <br />Little wetland soil development has occurred near the pond. Soils are extremely sandy with little <br />organic matter. The western and eastern portions of the Expansion Area North had significant <br />stands of woody vegetation. The western portion was previously a meander of the river. The <br />eastern portion appears to be a depression that previously held water. $oth of these areas are now <br />dry due to the lowered water table. <br />Wetlands do occur along the South Platte River west of the Expansion Area and within a small <br />area on the southwest portion of Expansion Area South. This vegetative community is designated <br />as "Wetlands Riparian" on Exhibit J-1 and is dominated by reed canarygrass, willows, and <br />cottonwoods. No wetlands will be affected by the proposed operation because there are no <br />wetlands within the Expansion Area North boundary and no disturbances are proposed within the <br />wetlands at the Expansion Area South. <br />Weed Species <br />Below is a list of some of the weed species documented in the Expansion Area and surrounding <br />areas. <br />Table J-2 Weed S ecies within the Ex ansion Area <br />Common Name Scientific Name <br />Cheat rass Bromus tectorum <br />S otted kna weed Centaurea maculosa <br />Lambsquarters Chenopodium album <br />Blue mustard Choris ora tenella <br />Poison hemlock Conium maculatum <br />Flixweed Descurainia Sophia, <br />Teasel Di sacusfullonum <br />hlland salt rass Distichlis s icata <br />Redstem fillaree Erodium cicutarium <br />Wild licorice Glycyrriza le idota <br />Kochia Kochia sco aria <br />Scotch thistle Onopordum acanthium <br />Prickly ear cactus O untia o[yacantha <br />Reed canary rass Phalaris arundfnacea <br />Tumbleweed Salsola iberica <br />Common mullein ~erbascum thapsus <br />Yucca Yucca !auto <br />1898-Frei 1 l2 Eshibits_(4.20.05).doc 7-6 <br />