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Stipulation No.3 Page 2 December 27, 2001 and June 20, 2002 samples does not represent the potential for an exponential increase over time. These two samples and the June 20, 2002 sample aze within the same range for pH and sulfate level showing that the change is not a trend. Sunnyside believes that the current range is more within the range to be expected except that pH is still artificially high. It was anticipated that pH would be azound 5.0 and sulfate 1,500 - 2,000 mg/1 since that is what existed prior to bulkheading. The artificially high pH and low sulfate levels were created by the lime that was placed neaz the bulkhead and pumped through the bulkhead. A total of 8 tons of hydrated lime was placed between the bulkheads, three of which was stacked at the upstream face of the bulkhead. In addition, 1 ton of hydrated lime in slurry was pumped through the bulkhead. Each time while monitoring over the year since valve closure, Sunnyside purged the pipe. The water was saturated with lime and gypsum, explaining the high pH and low sulfate values. It appears that this slurry is now gone and the values aze approaching those expected when the bulkhead was designed. These values aze well within design parameters. The bulkhead was designed for very severe sulfate exposure conditions (S04>10,000 mg/1) with type V cement and pozwlan. This conservative design was not because of anticipated conditions, but because of the desire to assure longevity. It is unlikely that with the bulkhead being in place for a yeaz and the sulfate levels and pH neaz the levels anticipated upon design that exposure problems exist or will develop. Based on inspections, the effectiveness of the bulkhead seal and low-pressure grouting has been maximized. Leakage at the seal has been minimized but as expected when the water.level rose into the fracture system, spill over started returning to the American Tunnel, which is still a drain. This spill over created by the American Tunnel's ability to drain the mountain will cease with placement of the .American Tunnel Bulkhead No.3. While this flow return through the fractures will have to be dealt with during construction of the American Tunnel No.3 Bulkhead, it is encouraging to note that water quality is better than the fault water behind Bulkhead No.2. This means that Bulkhead No.2 has been effective in sepazating the fault water from the neaz fracture system water which was its purpose. Sunnyside believes it has been demonstrated that design pressure and exposure conditions will not exceed design pazameters and requests that approval be given for permanent closure of the bulkhead valve on the American Tunnel No.2 Bulkhead and installation of Bulkhead No.3. Sunnyside also requests that DMG consider removing the monitoring stipulation for Bulkhead No.3. This stipulation will delay surface reclamation by another year, significantly increasing cost to Sunnyside, and is unlikely to yield any useful performance evaluation because;