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2.0 PERMIT MODIFICATIONS <br />Over the course of the permit period, American Soda has requested two Technical <br />Revisions. Technical Revision 1, dated 9/16/99 addressed revised groundwater <br />monitoring parameters, subsidence monitoring monuments/locations, and stormwater <br />pond design details requested by the DMG and/or comments received from interested <br />parties on American Soda's 112-R permit. <br />Technical Revision 2 was submitted to the DMG on March 10, 2000 to allow for <br />construction of an 11.5-acre temporary lay down and parking area just north of the <br />Piceance Processing Facility. The subject area was cleared and graded in mid-January, <br />2000 to provide both additional lay down area for construction equipment and <br />materials and temporary parking for the construction workforce. In terms of work <br />completed to date, the lay down and parking area was cleared of its natural vegetation <br />and graded nearly level. Topsoil from the !ay down and parking area was salvaged and <br />placed on the Piceance Site topsoil pile. The volume of topsoil salvaged was <br />approximately 9,270 cubic yards. A portion of the lay down area is presently being <br />used for stockpiling excess cut material from the construction of the Piceance Site plant <br />facilities. At the conclusion of construction, this material will be spread and graded over <br />the lay down and parking area, the topsoil will then be replaced, and revegetation will <br />then follow. Figure 2 provides a map identifying the location of the lay down and <br />parking area. <br />American Soda. L.L.P. 2 <br />DMG Annual Report <br />July 12. 2000 <br />