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Honeywood Coal Company 1993 Annual Hydrologic Report Page 3 Alluvial Wells ' Four alluvial wells, AW-4 & AW-5, AW-6 b AW-7 were installed to determine if the quality of water in the alluvium near the alluvial ' valley floor near the San Miguel River is impacted by the mining operation. Two wells are located along Bramiers Draw AW-4 6 AW-5 and two are installed along Naturita Creek AW-6 b AW-7. The wells in each drainage, are located up gradient and down gradient of the Reed Chatfield irrigation ditch. The quality of water in the irrigation ditch is also monitored to supplement the alluvial well monitoring data. The purpose of the alluvial wells is to determine if the quality of water in the alluvium is impacted by the mining operation. Two wells are utilized at each location because it is possible that the ' water in the alluvium up gradient of the irrigation ditch will be impacted, yet the water in the alluvium down gradient is not impacted. Since an alluvial valley floor is down gradient of the ' irrigation ditch, the distinction between the two monitoring points is important. ' AW-4 and AW-5, located in Bramiers Draw, were dry during 1992 and 1993. AW-6 contained water during the first, second and fourth quarters of 1993. AW-7 contained water during the second quarter of 1993. The Reed Chatfield Ditch, monitoring point R-1, was dry ' at the time the monitoring was performed during all four quarters of 1993. The quality of the water in AW-6 and AW-7 is similar. However, in the second quarter of 1993, the only quarter both contained water, the water quality in AW-7 had a slightly higher conductivity and ' total dissolved solids than AW-6. This may have occurred because the Reed Chatfield Ditch was dry during the period. In any case, the water quality in AW-6 is the main concern because it is the well that could be impacted by the mining operation. The quality ' of water in AW-6 was consistent with prior years monitoring results. AW-3 is located within the permit area in Section 33 Creek. This alluvial well has been dry during five years of monitoring, 1989 through 1993. Bedrock Wells Two bedrock wells are located adjacent to the mining area and one well is located within the permit area. BW-1, located east of the mining area has contained measurable quantities of water during all eight quarters of monitoring. During 1993, two samples were obtained and analyzed. The quality of water measured in BW-1 during 1993 was consistent with prior years monitoring.