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• Well Monitoring: Water Year 2003 <br />The groundwater wells that were monitored in water yeaz 2003 were 17-B (upgradient of <br />the mine), 94-1 (located mid-mine), and 95-1 (located downgradient of the mine). Wells <br />17-B and 95-1 were sampled December 27, 2002 and Mazch 25, 2003. During the period <br />between sampling events, groundwater monitoring well 94-1 was backfilled and reclaimed <br />during the reclamation at the South Pit. It is no longer available for monitoring. A firll- <br />suite analysis of parameters was conducted, as were field pazameters for the wells during <br />sampling. <br />SAMPLING METHODS <br />To ensure sampling consistency, CDS, Inc. personnel collected all water samples at the <br />Carbon Junction 1bTme during the 2003 water year. All water samples were analyzed at <br />Green Analytical Laboratories, Inc. laboratory in Durango or the SVL Analytical, Inc. <br />laboratory in Kellogg, Idaho. <br />Grab samples for the wells were taken by lowering the sample bottle into the wells with a <br />rope attached to a piece of PVC pipe. When the sample bottle reached the water it was <br />filled and retrieved. Appropriately sized and labeled bottles for ground water sampling <br />were obtained from the laboratory prior to sampling. <br />A depth meter that was lowered down the well on a spool measured depth to water. The <br />meter indicated it had reached the water by a beep (generated by an electric current), and <br />the measurement was taken. Meters were also used to determine pH, temperature, and <br />electrical conductivity from the grab samples. <br />Grab samples were collected from the springs as close to the visible source of water as <br />possible in an area of undisturbed flow. Appropriately sized and labeled bottles for <br />surface water sampling were obtained from the laboratory prior to sampling. Meters were <br />also used to determine pH, temperature, and electrical conductivity from the spring flow m <br />the field. <br />RESULTS -SPRINGS FOR WATER YEAR 2003 <br />Three springs were sampled during the 2003 water year. Spring 1 (Upper Carbon <br />Junction Canyon) above the mine was dry during the December 27, 2002 sampling but <br />flowed during March of water year 2003. As described above, this spring has been dry for <br />two decades and likely flow occurred this spring as a result of one heavy snow event in <br />mid-March 2003. Sampling occurred appro~amately one week later during melt. Spring 4 <br />(CJ-LO-SPG #4) was flowing during both sampling events, while spring 3 (REA SPG #3) <br />was flowing only during the Mazch 25, 2003 sampling. Springs 3 and 4 originate below <br />the mine and permit area. Spring 3 (REA SPG #3) is approximately 1,000 feet south of <br />Carbon Junction M4a Page S <br />Annual Hydrdogk Reportfor Water Year?A08 <br />