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David Berry -2- April 11, 1995 Ephemeral Drainages The Division recommended that the ephemeral drainages be monitored monthly. Upstream and downstream monitoring points should be established if practical. Samples will be analyzed for field parameters and full suite. Deer Trail Ditch The Division recommended that two monitoring points, one upstream and one downstream, be established for the Deer Trail Ditch. The ditch will be monitored monthly for field parameters and three times during the irrigation season for full suite. Alluvial We].ls The Division recommended that three alluvial wells be drilled at the location of the proposed truck loadout near old State Highway 133. It was noted during the meeting that only one well was completed in the Rollins Sandstone. One or two additional wells may need to be drilled in order to characterize the aquifer below the lowest coal seam to be mined if the aquifer could potentially be impacted by mining. The Division approved the attached list of parameters to be used for the full suite analyses. Additional information exchanged during the meeting is summarized as follows: ^ Springs and stockponds are considered to be renewable resources. ^ The permit application will need to evaluate how mining will impact grazing and wildlife. ^ An Order 1 soil survey will be required on all areas to be disturbed by the surface facilities. The published SCS soil survey can be used for all other areas. ^ The Division is concerned about the stability of the proposed portal bench, coal stockpile bench and access road. Geotechnical (stability) analyses of the proposed facilities will probably be required. ^ If we propose to mine under Terror Creek, hydrologic monitoring data will need to be collected. The Division recommended that we utilize information collected by the Bowie No. 1 Mine if the data is applicable.