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;Y•, • .During,2004;water levels.in,the wells~werewariable,~EC-14 was sampled in the second quarter on June 22, 2004 and had just enough water to sample, but samples were muddy from baler agitation. EC-14 was only damp in the fall with no sample available. The EC-15, June 22, 2004 sample was also quite turbid with mud when obtained. EC-15 had barely enough water to indicate a water level but no sample was available in the fall. A~n~aly~sri~s~ofuthe very limited data suggests no anom~..alies.o~ G fervKT-1i-its ~'frs~~s,~~ii?.1';~:I taili;.~.i,Ti~..:;X~ .•':;t:~;z~~.~,~9Sii/~a~.3,~1:';~1~~~.'.'t.'v. "'tT: 3r":' .. D2B Mine Water Transfer Well ("D seam to B seam"1 The D2B mine water transfer well was approved by PAP TR-47 and the well drilled and completed in late December 2004. The purpose of the well is to transfer mine water from the D seam Elk Creek mine workings to the Somerset B/C seam workings. The as-built well completion diagram was submitted in TR-50 (calendaz yeaz 2005). In the future, the depth to water is to be measured at the same frequency as the overall OMLLC groundwater monitoring program. Data is also to be collected regarding 1) volume of water transferred, 2) representative pH of transferred water and 3) representative TSS of transferred water. Water transfer operations did not commence unti12005 and transfer water data will be submitted in the 2005 AHR. • When the drill penetrated the B Seam workings, it was apparent that this portion of the B seam mine was flooded with water. The B seam was encountered at .the 5918' elevation and a static water level later stabilized at the 6042' elevation. Future monitoring of this well will determine if the water level changes over time. Changes in static water level may indicate mine water inflow. SC-1 Well -Rollins Sandstone Monitor well SC-1 is located just east of the reclaimed Sanborn Creek mine portal area. Well SC-1 was completed in the Rollins Sandstone, which is located 40 to 50 feet below the B- Seam. Monitoring data were historically collected from well SC-1 prior to any substantial mining in the B-Seam of the Sanbom Creek Mine. The SC-1 well is located up-gradient relative to the Rollins Sandstone unit which is located stratigraphically under the footprint of the mining activities. Water in the Rollins Sandstone is confined to limited localized zones that are fractured and/or contained above the Rollins, as evidenced by water level measurements that are well above the top of the sandstone member. Water quality is poor, with high total dissolved solids as sodium chloride. Inflow and recovery of the water level in the drill holes indicates very low permeability and porosity of the sandstone. There has been some variability in the water levels . measured in well SC-1 but there has been no apparent trend or indication of impact. No significant difference in the 2004 monitoring results from baseline or historical measurements was noted in well SC-1. 12