1993-09-24_REVISION - M1977378 - Laserfiche WebLink

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Responses to Division Concerns Page 2 Table 1 provides a comparison of actual footages (referenced from AT-P3) to the "track repair footages" referenced in the Simon Hydro-Search report (February 11 , 1992) . AT-P3 will be used as the origin (distance = 0 ' ) for all future footage references in the American Tunnel. b) Flow from the Sunnyside Mine in comparison to flow from the American Tunnel portal . The flow that originates on SGC property (Sunnyside Mine) as compared to the total flow from the American Tunnel portal has been monitored periodically since March, 1992. Flow measurements were taken from Parshall flumes installed at convenient locations close to the property line and outside the portal . Using a straight arithmetic average or a time weighted average, 66 - 67% of the American Tunnel flow originates from the Sunnyside Mine (SGC property) and would be impounded by the proposed bulkhead. c) Proposed bulkhead site in relationship to Sunnyside Mine workings. SGC has not developed underground workings (ie rock excavations) outbye of the proposed bulkhead site. The 0700 runaround and its flow contribution is inbye the proposed bulkhead site with only undeveloped tunnel being downstream of the proposed bulkhead. The reference point discussion in Part 1 a) and Table 1 explain the reason for confusion as to the location of the 0700 runaround in relationship to the bulkhead site (See Figure 1 , page 15) . TABLE 1 AMERICAN TUNNEL - DISTANCE REFERENCE CONVERSION (Feet) : Simon Hydro-Search (February 11 , 1992) "Track Repair Footage " AT-P3 = 0 Comments 8150 10080 7350 9145 - 8157 property line 8127 flume - 7950 bulkhead site 6400 7852 3420 3976 2700 3226 2400 2941 0 - ' This site is in the concrete ditch between the portal and reagent feed building.