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Erica Crosby <br />Division of Minerals and Geology <br />Drainaoe Control Plan <br />Page 3 of 3 <br />November 1, 2004 <br />Cemex will control surface drainage into C-pit to the extent practical however our analysis <br />indicates that drainage controls are not warranted. West of C-pit the Boulder Feeder Canal and <br />to some extent the Swede Ditch essentially function as drainage diversion ditches. The size of <br />the drainage basin east of these ditches (i.e. between the ditches and C-pit) that could possibly <br />result in surface flows entering C-pit is so small that any controls are not necessary. <br />South and east of C-pit the surface drainage generally flows away from C-pit. To the north is <br />the main access road and this, along with the relatively small size of the drainage basin <br />potentially contributing flows to C-pit, do not warrant any drainage control features. There is <br />also a road along the east side of C-pit which partially acts as a drainage barrier to westerly <br />flows. <br />Please call me if you have any questions. <br />Sincerely, <br />~~ <br />John Lohr <br />Plant Manager <br />