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continued, it is ikely that the recent fluctuations in piezometric levels in the rout Creek are related to mine dewatering. Nevertheless, the comment may have been prompted by discussion in the PAP on page 2.05.6-5 which addressed in the subsequent response to comment III. B. 14. 12. CEC has not completed research on aquifer usage for the alluvial aquifer Trout Creek Sandstone, Middle Sandstone, and White Sandstone. Upon completion of that research updated information will a provided to DMG. 13. CEC has no a ditional information regarding which aquifer the Lux well is compl ted in. CEC has shared information on file that would indicate that the division has also attempted, unsuccessfully, t make such a determination based on review of drillers records nd analysis of water from that well. 14. The text on F monitoring of the mine in 1985 appE Sandstone due to that the potentia this area was abo~ time. This observ subsequent statemi of the E coal sea Wells is above the it is not likely t the Trout Creek overlying E coal ; Mining in the Eag] seam. It also occ coal appears to be the Trout Creek Sa also occur in area provide hydraulic Finally, mining i. mining in the unde of significant mi expected that mini water levels in tY 15. The text on the No. 5 and No. sandstone aquife Sandstone. No deg the Twentymile Sa following: ige 205.6-5 of the PAP states that water quality inflow from the 2 West Main fault in the No. 5 irs to have been derived from the Trout Creek .he similar chemical nature and the indication ietric surface of the Trout Creek Sandstone in the base of the F coal seam being mined at the tion and conclusion is not inconsistent with the nt in the PHC which asserts that since "the base in the vicinity of both Trout Creek Sandstone current potentiometric level in these two wells, iat the fluctuations in potentiometric levels in 3ndstone is related to mine dewatering in the ~~ ~ e No. 6 occurs in a different coal seam, the E urs further up dip where the base of the E seam above the corresponding potentiometric levels in ndstone. Past and proposed mining in the E seam a where there are no vertical faults which could connection with the Trout Creek Sandstone. ~ the F coal seam in the location of proposed rlying E seam did not encounter faults or areas ne inflow from the floor. Thus, it is not ng of the E seam coal will significantly affect ~ Trout Creek Sandstone. age 2.05.6-12 states that mining activities at i Mines have affected piezometric levels in two the Middle Sandstone and the Trout Creek fines in piezometric levels have been observed in lstone. The text has been supplemented with the The Trout Creek andstone piezometric levels are affected by continued use of t e aquifer for mine water supply. Water level drawdowns in the v cinity of both Trout Creek Sandstone wells have been evaluated usi g the Theis, non-steady solution for drawdown