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Mathews, Routten Page 2 January 7, 1999 and 3) what are the hydrologic and water quality impacts to down gradient users associated with the apparent inflow to the E-seam. Based on my review of available data including the Hydrology and Alluvial Valley Floor Report prepazed as an addendum to the permit by Kaman Tempo, I can make the following conclusions. Geologic strata dip to the north away from the mine portals. The PAP states that it is not expected that abandonedportals for the D and E Seam operations will dischazge water. The Red Canyon #1 and #2 Mines have portals that dip into the ground, which are designed to prevent gravity discharge of water from the mine. The Kansan Tempo report states that the glacial/alluvial aquifer will likely receive all or most of the post-miningdischarge. The water level in the mine is projected to stabilize below the portal according to the Kaman Tempo report. There appears to be a lack of data with respect to the quality of water in the flooded mine workings. In retrospect, we probably should have required a monitoring well in the flooded mine workings to identify both the level of water and quality of water in the E-Seam mine workings. At present the water level in well E-1 has risen 28.4 feet since water was first measured in 1980. Monitoring well data presented in the PAP show that well location CE-80-4a corresponds to well cluster E-1, F-1, and D-1. The top measuring point elevation given for E-1 is 6431.4 feet (above MSL). On page 67 of the Kaman Tempo report it states that the E Seam portal is at an elevation of 6390. Based on the recent water level taken on 6/25/98, the present water level in E-1 would be a[ 6378.6 feet. Although E-1 is located to the north of the portals in the down-dip direction of the geologic strata, the Kaman Tempo report indicates that E-1 is located upgradient of the E-seam portal. This information is questionable, because it is more likely that groundwaterflows away from the portals in the direction of the dipping strata. It is possible that groundwater in the overlying glacial alluvial aquifer locally flows to the south towards the portal location. Further study would be required to identify accurate groundwatergradient and flow direction in both the E-Seam coal and overlying glacial alluvial aquifer. Nevertheless, the source of the increasing head in well E-1 has not been positively identified. If the rising water level in well E-1 is a result of mine inflow from the E-Seam, then the potential does exist for mine water discharge from the E Seam portal. Information on completion of well E-1 is critical [o understanding the source of the rising water. Well data provided in the PAP for well E-1 is contradictory and somewhat incomplete. Figure 2.04.5-15 shows E-1 cased from 0-119' and apparently open hole from 119'-127'. To the contrary, the well completion report (Figure 2.04.5-22) shows that there was no casing. Accurate well completion informationis important for understandinghow groundwater flow may be entering the well casing borehole. If the well was improperly constructed or has perforated casing installed across both the alluvial aquifer and coal seams, this would support MINREC's conclusion that well E-1 contains a mixture of water From the alluvium and the E-1 coal seam.