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REX E LOESBY PE <br />• <br />3037719632 <br /> <br />R~e'Ned <br />JUN 21 1999 <br />Divrsio~ of Minerals d Gaol <br />(o) Incidental Products: There are tto incidental products to be produced by the quarry. o8Y <br />EXHIBIT D: RECLAMATION PLAN <br />(al Overburden: The Yulc Quarry is and underground operation The seam of marble <br />is 300 feet thick and is etnirely exposed at the surface. No overburden removal or backfilling of <br />the underground excavations is anticipated. It is anticipated that the north and middle quarry <br />entries will be left open and unchanged from their current condition The south quarry entry will <br />also remain open, but a new portal has been opened on the south wall of this entry. The quarry <br />portal driven by CYMC in 1990, the entry driven in the south call of the south quarry entry, the <br />small util$y tunnel and any new quarry entries will be backfilled to prevent public access to <br />underground workings. <br />(b) W sate Plle Sbp~ The effective overall slope of the final surface of the waste piles <br />is to 2:1 (horizontal: vertical). This slope is lower than the slopes of the existing waste piles that <br />have proven to be stable for the 49 years between 1941 and 1990 when the quarry was inactive. <br />It is Sierra's position that a geotechnical study of the waste pile slopes is not necessary. 5ueh a <br />study would rely almost solely on the history of the existing waste piles. Rased on this history. <br />very reliable data is available upon which to base planned final waste pile slopes. The slopes are <br />North <br />Scale: 1 in. a 200 f6 <br />20 Faot Contours <br />Rea E. I,oesby <br />Colorado PE No. 20338 <br />Sediment <br />Control <br />Structure <br />Bovadary o[ the <br />Affected AfCR <br />Yule Quarry Existing Contours <br />Sprtng 1999 <br />to <br />