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Table 2/4 summarizes mining type by ton and estimated surface disturbance. For quantity <br /> estimates, bwas assumed 1% of the total mining would be performed using drilling and blasting. <br /> TABLE2.4: MINING METHOD SUMMARY <br /> 7UppePit—Roto-Milling 15.0 11.58 <br /> Upper - <br /> Notes: MUpper Pit material summaries and acreages do not include mining the Upper Pit to the <br /> approved permit boundary, assumed to correlate with apit floor elevation of§8O0 feet emo|. <br /> If needed during the proposed mining activities, American Gypsum would contract specialized <br /> contractor to perform drilling and blasting. Any necessary approvals would be 0htGined, and <br /> notifications made. <br /> 2'10.2 Underground Operations <br /> No underground operations are anticipated for the Upper Pit and East Pit (and mSSOoi8ted <br /> appurtenances). <br /> 2~11 Use and Occupancy <br /> The proposed disturbance area would be used and occupied in m similar manner aa the existing <br /> K4ine, including all relevant permits. This includes itgnnS such as mining pits and access roads. <br /> There are no proposed changes to the Mine entrance or associated fences, gates, or signs. There <br /> are also no new structures (such as buildings) or enclosures associated with the proposed <br /> Modification. Drawing 15 shows map Vf existing facilities at the Mine Office and staging area. <br /> Table 2.2 contains a list ofall equipment currently used at the Mine and proposed for continued <br /> use as a part ofthis Modification, including locations where equipment is left at the end of shift. <br /> A4'toOt high wire fence has been installed north of the Upper Pit to prevent accidental access <br /> from BLK8trails located north of the [Nine and proposed East Pit area. Signs have been installed <br /> to alert recre@doniStsto the potential hazard ahead. <br /> The original Notice of Occupancy was submitted to the BLK8 on 03 October 1998. The updated <br /> Notice of Occupancy and site claim map was submitted tothe BLK4on03 August 2O10. The site <br /> C|a|rn map is included on Drawing 03� the list of applicable claims is ShOvvn in T8b|82.5. <br /> TABLE 2.5: CLAIM INFORMATION <br /> za <br />