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<br />~~ . <br />a <br />Q-t:~~. <br />Month Mean Discharge (cfs) <br />November 23.0 <br />December 17.2 <br />January 14.9 <br />February 15.9 <br />March 17.9 <br />April 41.8 <br /> <br />Max. Discharge (cfs) <br />33.0 <br />23.0 <br />18.0 <br />20.0 <br />54.0 <br />106.0 <br />The mean discharge values obtained from the station are actually less <br />than those estimated and reported in Exhibit G of the amendment <br />application. For the years of record, the maximum discharge values for the <br />month of April occur after about mid-month. To accomodate a possible late <br />April peak, either another 30-inch diamete pipe (for a total of 4) will be <br />used, or the crossing will be removed prior to mid-month. The plans <br />presented in the application for a temporary crossing are thus adequate. <br />2B. The fill to be used for the crossing (if established, refer to the <br />discussion given in 2C, 2D below) will be the same coarse material to be <br />mined. The material will be removed with a loader prior to spring runoff <br />and deposited above the apparent mean high water line of the stream. <br />2C, 2D. The plans were discussed with Grady McNure at the Grand <br />Junction office of the Army Corps of Engineers. It is somewhat uncertain <br />at this point whether a very minor crossing established during periods of <br />low flow would require an individual permit or be considered under a <br />general or nationwide permit. Animas Aggregates will be working with the <br />~, Corps regarding this matter and will proceed accordingly. However, one <br />alternative to the plan would eliminate the concept of the temporary <br />~o crossing and use the existing access road located immediately east of the <br />bridge (refer to the Exhibit C map) to reach the area. This possible <br />~„~~ ~ lternative should then be considered an integral component of the amended <br />~lplan. An equal acreage swap between the crossing area shown for that of <br />.~ a the access road would be done and not affect the total permit area. No <br />,~~ additional landowners are involved and the legal description which has been <br />~~ published includes the area. <br />3A. The limited removal of aggregate from bars at the confluence of <br />the two streams will not requi`{~e a 404 permit, but the construction of a <br />n~~ ~~ berm will. Therefore, Animas aggregates, Inc. will will work with the <br />Corps if the company decides to pursue a 404 permit to construct the berm. <br />Otherwise, the activity will be limited to the removal of only the natural <br />;~ gravel bars which accumulate there. A thorough discussion of the situation <br />,~; ~~ is given in Exhibits D and G of the application. This activity would take <br />~ place during periods of low flow. However, if an application is made for a <br />~~ section 404 permit, the concepts and provisions will be the same as <br />outlined in the amended MLRB application. <br />3B. Acknowledged. ~~kpS~ Lbrv~m,~ -~ S.:~M <br />3C. If a section 404 permit is obtained, the area anticipated for <br />excavation would measure approximately 350 feet long (parallel to the <br />stream along the north side) by about 80 feet wide. <br />3D. The berm would range from about 75-100 feet distance from the far <br />