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r Compressor station was surveyed by Western Slope Environmental Consultants in the spring of 1998 (Young and Young 1998). No threatened or endangered plant species were identified along this reach, including an outcrop of the Thirteenmile Tongue in Hatch Gulch. ' A study was completed in 1994 for Barrett Resources that included a 200-foot wide corridor from the centerline of an existing ngl pipeline that will be largely ' paralleled by the Yankee Gulch Project (Barrett 1994). No occurrences of the Dudley Bluffs bladderpod or the Dudley Bluffs twinpod were documented along this corridor. • Raptors: A raptor nesting survey was completed by Cedar Creek Associates during the 1998 raptor nesting period for all public land portions of the pipeline corridor (Cedar Creek Associates 1998). American Soda will conduct additional raptor surveys of suitable habitat along the pipeline corridor for areas not covered during the 1998 surveys. These additional surveys will be completed ' prior to pipeline construction. • Sage Grouse: In response to a request by Lhe Colorado Division of Wildlife ' (CDOW), American Soda will construct the project pipeline on the opposite (east) side of the existing pipeline corridor from the known active sage grouse lek on Barnes Ridge for at least 1.5 miles on either side of the lek. To enhance sage grouse habitat, forb species known to be beneficial to sage grouse will be included in the pipeline corridor revegetation seed mixture, at least along Barnes Ridge. ' 3.2.5 Visual Screening Approximately 12 miles of the proposed pipeline corridor are visible from public roads. The additional pipeline corridor will not substantially change the visual impression along most of the corridor. However, American Soda may reduce ' visual impacts using techniques such as slope restoration, selective clearing of adjacent trees to reduce contrast, mulch/native seed planting, and matching slope protection fabric with the native soil color, if required by the BLM. The ' technique of selective clearing could be used on specific portions of the project if requested by private landowners. 3.2.6 Weed Management To prevent the introduction of noxious weeds into the disturbed areas, all ' construction equipment will be thoroughly cleaned before entering the project area. Parts of the construction equipment that are in contact with the soil (blades, buckets, crawler tracks, tires, etc.) will be washed or otherwise cleaned of all soil. Construction equipment will also be washed or otherwise cleaned of all soil after having been used in areas with identified noxious weeds. Noxious weed P~Pelirc Wormahon Sumrtury 14 ' Yankee GW<h Sodrum Mrrcrals Pro~ert Amerion Soda. L.L.P.