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Northwest Aggregates Inc. <br />"W,4ND Pit" <br />Russ Means <br />Division of Reclamation Mining & Safety <br />1313 Sherman Street, Moore 215 <br />Denver, C 80203 <br />Russ, in response to your letter dated 3 - 2 4 - 10 <br />Exhibit "B" <br />REC m- <br />01-113VED <br />MAR 3 1 2010 <br />GRAND i : ��. °� ; F IELD OFFICE <br />O -310N OF <br />F CLM � - 1 1 C �Sf Mi -NI N & SAFEE TY <br />C) Proposed pit area is the 100 year flood plain. Static groundwater elevations <br />are typically 5 feet below ground elevations. The 50 foot setback from the edge of <br />the river will be maintained for all reining purposes except the building of a berm <br />to protect pit from 1 year flood event. No other manmade structures are near pit <br />area except power line as shown on map. The only fence is on the west boundary <br />of the property 300+ feet away from any excavation. Please see pictures `exhibit <br />B <br />Exhibit "C" <br />E) <br />G) <br />H) <br />I) No ground water will be exposed until DMG has a copy of the well permit. <br />J) <br />K) <br />L) Applicant will only de -water when necessary to minimize disturbance to <br />hydraulic balances. please see enclosed cross sections of edge of pit for details on <br />berm to protect from 100 year flood event. <br />M) <br />Exhibit "D" <br />C) <br />D) The statement N/A should be removed. Ponds in the mining area will be left for <br />waterfowl with the reclaimed slopes being graded no steeper than 3H:1. The <br />Division of Wildlife was contacted and agreed with a native grass for seed mix <br />and will send additional information. <br />E) <br />