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The Portal #3 will be sealed on the bottom portion only. Given that the portal is so large and tall, the <br />upper portion is completely inaccessible from below and above. A picture shown below demonstrates <br />how the Portal #3 would be reclaimed. <br />s.. <br />Aff <br />The effective overall slope of the final surface of the waste piles is between 1.611:1 V and 1.811:1 V. This <br />slope is similar to the slopes of the existing waste piles that have proven to be stable for the 49 years <br />between 1941 and 1990 when the quarry was inactive. It is Colorado Stone's position that a geotechnical <br />study of the waste pile slopes is not necessary. Such a study would rely almost solely on the history of <br />the existing waste piles. Based on this history, very reliable data is available upon which to base planned <br />final waste pile slopes. The slopes are consistent with the existing natural topography and will blend <br />Yule Quarry January 2014 54 <br />