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x <br /> , . <br /> J _ <br /> _M <br /> y-_ <br /> #IF iMk , <br /> e y w <br /> VO <br /> 41 <br /> AOL <br /> Ilk <br /> x <br /> NO <br /> 469 <br /> AN <br /> The map on the left shows the proposed drainage route downgradient across the GPS Topographic Map. The map on the right shows the 2:1 highwall <br /> disturbance area with regards to the permitted boundary.Aside from the highwall (the steepest area of the mine) the other disturbances could be ripped and <br /> seeded to a 3:1 slope to create a smooth basin, allowing for water to drain through the drainage/culvert at its base and connect with the pre-existing drainage to <br /> the northwest. It should be noted that the pre-existing drainage might need to be scraped at its confluence with the proposed drainage because it is locally 2-4 <br /> feet higher than the base of the current disturbed area. <br />