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tably designed to prevent knickpoints and reduce erosion on the sideslopes and within the reclaimed drainage channel area. Several potential problems with the backfilling and grading of Pit 1 do exist. These problems are: the material volumes and balances noted on Figure 2A and Table 2 of Addendum II and the use of overburden material from Phase VI of Pit 2 to backfill Phase V of Pit 1. It should be noted that regardless of these problems, further discussed in Chapter III of this TEA, the material for backfilling Pit 1 to the proposed reclaimed contours appears to be available and the proposed contours can probably be achieved. (See Chapter III of this TEA) Approximately 910,000 to 1,030,000 tons of coal will be removed from Pit 2 (Table 1, page 51 and Table 2 of Addendum II assuming 5.5 BCY of overburden per ton of coal, of the permit application, respectively). Mining will begin in Pit 2 in Phase VI and progress northward. In 1983, excess material from Phase VII and/or Phase VIII of Pit 2 will be stockpiled on the west side of the northern portion of Pit 2 (Table II and Figures 2 and 2A of Addendum II of the permit application). This stockpile will be used to reclaim the final cut of Pit 2. As with Pit 1, there are several potential problems with the mining and backfilling of Pit 2. These problems are: the over- burder~ volumes and material balances shown on Figure 2A and Table 2 of Addendum II. It should be noted that despite the problems further discussed in Chapter III of this TEA, there appears to be sufficient backfill material available to achieve the reclaimed contours. The proposed reclaimed contours and overburden balance for Pit 2 are shown on Figure 2A of Addendum II of the permit appli- cation. The southern portion of Pit 2 will be returned to appror;imate original contour, restoring the disturbed North Fork of Bolton Draw to its original flow path and gradient. The cen- -35-