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The permit area is not prone to flooding from adjoining properties. Two predominate <br />drainage courses found in the vicinity of the site are: Cottonwood Gulch, which adjoins the <br />permit boundary and the Elk River approximately 0.25 miles east of the site. Drainage <br />calculations indicate that the existing culvert under CR- 62A adjacent to the site will <br />discharge 120 cubic feet per second, flowing full with maximum headwater depth of 5.13 <br />feet from Cottonwood Gulch. Gravel extraction activities are separated from the gulch by <br />an undisturbed 25 foot minimum buffer strip. A review of the Flood Rate Insurance Map <br />indicates that the site is not prone to flooding by the Elk River. <br /> -- - - <br /> z <br /> J <br />, <br /> J266 <br />-_ _ <br />I <br />~ ~ 'Z66 m <br /> <br />I S <br /> <br />ZONE AE <br /> 2$ >~ <br /> <br />~ v <br />e <br /> R <br /> ELK RIVER <br /> zzv 3s V <br />~~ T o U 225 / <br />S-TE <br />1L <br />> <br />R s <br />- 22 <br />- ® <br /> <br /> <br />~ <br />]220 <br />P - <br />_ <br />G <br />~~~~ <br />__ . o RM 3 <br /> l~ <br /> OS \L <br /> <br />N ZONE AE <br />M zzM <br />]!95 N ~i.,,vJle <br />L I M % / i% <br />w ': <br />K ~ .:% <br />z+ee K / %. <br /> _ . <br />J n ~ <br />/ <br />H / <br />n Is <br /> J <br />~ <br />G y <br />J~ / <br />A Reproduction from the FEMA Map <br />Mining is conducted in a manner that will not increase the amount of surface storm water <br />runoff above historic flows. Any storm water runoff entering the site will be captured within <br />