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EXHIBIT D (Cont'd) <br />on the Roaring Fork River and approximately 5,966 feet down- <br />stream at the last point where it adjoins Sievers Ranch property. <br />Plans for extraction of the sand and gravel will reduce the eleva- <br />tions on Sievers Ranch property to approximately a constant six <br />feet higher than the ditch. For instance, at the ditch diversion <br />from the river, Sievers Ranch land will have an elevation of 5,974 <br />feet. Nhere the ditch leaves contact with the affected land, the <br />elevation will be approximately 5,972 feet (see map Exhibit F). <br />During excavation operations care will be taken to prevent any <br />damage to the Robertson ditch by earth-moving equipment or excavated , <br />material. Since excavation will stop above the elevation of the (// <br />1 ditch, no loss of water from the ditch will occur. The Sievers <br />Ranch & Development Company owns approximately 90 of the Robertson <br />ditch. <br />The drainage of the affected land before mining is basically <br />from west to east and south to north toward the Roaring Fork (see <br />map Exhibit C). Because of the ditch system on the irrigated land <br />there are some reversals of the overall pattern, but these are <br />minor and are man-made in most cases. Drainage after excavation <br />is complete will have the same overall pattern as it did prior to <br />excavation. Specifically, the large drop in elevation will be <br />along the west side of the affected lands on a 3 to 1 slope rather <br />than a 1/2 to 1 slope at the river. The property along the river, <br />like that along Robertson ditch, will be excavated to elevations <br />that are 6 to 10 feet above the river bed. No significant change <br />in the drainage from its present condition is expected. <br />f <br /> <br />- 10 - <br />