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MINE ID # OR PROSPECTING ID#: M-1977-348 PAGE: 3 INSPECTION DATE: 10-28-04 INSPECTOR'S INITIALS: ACS from amendment AM-O1 outline 776 bonded acres, and maps date stamped by DMG on March 22, 1994 show the additional 95 bonded acres. These additional 95 bonded acres are located in quarry E4, where the area covered by bond was extended north to approximately the 117,250N coordinate line by a permit action approved in 1994. 3. DMG has examined all of the more than 100 maps included in the permit file. As pointed out by Bill Schenderlein, consultant to Holcim, there are ambiguities in the permit boundary lines on certain maps dated 1992 to present. The ambiguous area lies north of the main cement plant facilities (note that the bulk of the cement plant facilities have never been within the DMG permit area). The definitive permit boundary map was date stamped by DMG on January 19, 1992, during the amendment AM-O1 review period, and is map no. bcc-1356 labeled "PERMIT BOUNDARIES." This map shows that the northernmost of the ambiguous permit boundary lines is the regulatory line. This means that the stacker reclaimer geodesic dome structure is not in the DMG permit boundary. Nor is the quarry office shop (now demolished) or the clinker shed (also demolished). 4. On February 13, 2001, DMG received an amendment application from Holcim. This was an application to include the pre-heater building and CKD loading building into the permit area (these buildings have since been demolished). This amendment application was intended to bring the site into compliance with aspects of operations necessary to allow DMG to be the regulatory authority over CKD disposal in the quarry pits. DMG never accepted this amendment application as being officially filed, and when the cement plant shut down in 2002 it was determined that there was no reason to require the amendment. 5. The approved reclamation plan does allow roads to be left in the areas to be reclaimed. However, the nature of these roads must be compatible with the poet mining land use of rangeland, meaning that roads that will remain must not be excessively wide, and must not require high frequency maintenance. 6. The approved reclamation plan does require that bedrock dip slopes located on the west side of the quarries be revegetated. However, The DMG cannot require revegetation or other reclamation on the pre-law dip slopes in the A-band. Challenges to establishment of vegetation on the post law dip elopes are adhesion of covering fill to the relatively smooth bedrock slopes, and providing an adequate rooting zone above the bedrock surface, which is resistive to root penetration. Ohaervations at the site indicate that the granular gray shale spoil, available in abundance throughout the site, remains stable when placed on the dip elopes (see photo #2 included with this report). Other types of mine spoil stockpiled at the site are also likely to adhere adequately to the bedrock since the slope is only about 15