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:1IM111 ed L.i,,,ited hnpact 1/0 0perotion Pconit Applic ati('rr L'Aluhits <br />Robins Rock Tit - Rohin.s Construclin1,, LI.I_I' <br />b) Man -made structures within 200 feet of the affected area <br />The following man -made structured are located within 200 feet of the permit boundary, and <br />can be seen in more detail on the maps provided in Exhibit E. <br />Center Pivot Sprinkler: This sprinkler is roughly 70 feet from the southeast corner of <br />the permit boundary, and roughly 600 feet from the extend of mining excavation <br />operations. The sprinkler serves the field south of the permit boundary. <br />Gravel Road: A 10 -20ft wide gravel road from Conejos County Road H to the permit <br />boundary is located at the base of the mesa along the edge of the circular alfalfa field. <br />Irrigation Ditch (Abandoned): The Las Mesitas Ditch is located along the gravel road, <br />and has been abandoned for nearly four years. <br />c) Water Resources <br />There is an existing exempt commercial well on the property and it draws water from the <br />unconfined aquifer at a depth of 40 feet. The well is 100 feet deep. Groundwater is not <br />expected for more than 20 feet from the lowest point in the area to be permitted. Robins Rock <br />Pit will not affect either surface water or groundwater systems, since the bottom of the pit <br />will be significantly above both the Conejos River and the static water level in the exempt <br />commercial well drilled on the property. It is expected that approximately 1 ac -foot per year <br />will be used for reclamation purposes and minimal amounts will be used for dust control. <br />Runoff from storms and snow melt will be contained within the pit and the pit will be graded <br />in such a way as to always be lower than the adjacent property. Since no runoff will be <br />allowed to leave the permit area, Robins does not anticipate that a NPDES permit will need <br />to be acquired from the Colorado Department of Public health and Environment. <br />d) Wildlife Information <br />There are no known endangered species within the vicinity of the permit boundary. The <br />existing vegetation on the site is suitable for wild game such as deer, elk, and antelope, as <br />well as native range for sheep and cattle. However, grazing on this particular area is <br />somewhat limited as a result of low precipitation, high slopes, and sparse grass growth. <br />Grasses within the boundary consist mostly of Indian Ricegrass, Winterfat, Blue Grama, <br />Fourwing Saltbrush, Rabbit Brush, and Sand Dropseed. <br />The area adjacent to Robins Rock Pit provides habitation for many small and big game <br />species including coyotes, rabbits, fox, skunks, and rodents of all types. Big game includes <br />deer, antelope, elk, occasionally black bears, and mountain lions. There are also a variety of <br />bird species in the area. <br />Large and small game hunting is allowed within the general vicinity, but the proximity of <br />many nearby residences renders hunting near the pit dangerous. Very little hunting occurs in <br />the nearby vicinity and the size of the pit is insignificant compared to the range which the <br />small and large game have available. The pit does not in any way affect travel patterns of <br />game in the area. Furthermore, there are no known breeding or calving grounds for wildlife <br />on this property. <br />Prcol vc d 1)v: S„mmi'l 1,111g," tccring Co <br />Ioh A'vmh,,i : 4NO I Page 7 of 73 <br />