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• The Trout Creek Sandstone is located below the existing workings of the "E" Seam. Subsidence is not <br />predicted to occur in the Trout Creek Sandstone. Subsidence which occurs on the footwall side of the coal <br />seam will only go to the coal-shale contact at the base of the coal seam. <br />Surface water has been monitored on a quarterly basis. No changes in water quality or field parameters <br />have been noted. <br />117A Revision 12/94 <br />Technical Revision 3/96 <br />