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. Wel! Monitorins: Water Year 2005 <br />The groundwater wells that were monitored in water year 2005 were 17-B (upgradiem of <br />the mine) and 95-1 (located downgradient of the mine}. Samples from Wells 17-B and <br />95-1 were collected once during the second water year quarter (April 14, 2005). Field <br />pazameters were collected for the April 2005 sampling for both wells. A full-suite analysis <br />of parameters was conducted for the April 2005 sampling. Field parameters were <br />obtained in December 2005 for Well 17-B, but CDS personnel could not locate Well 95-1 <br />during that sampling event. <br />SAMPLING METHODS <br />To ensure sampling consistency, CDS, Inc. personnel collected all water samples at the <br />Carbon Junction Mine during the 2005 water year. All water samples were analyzed at <br />Green Analytical Laboratories, Inc. laboratory in Durango. <br />Grab samples for the wells were taken by lowering a 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 lowered down the well on a spool measured depth to water. The meter <br />indicates when water is encountered by a beep (generated by an electric current), and <br />measurements are 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 in <br />the field. <br />Both sediment ponds 001 and 002 were discharging during the January 30-31, 2005 <br />inspection. Sedimem pond 002 also was discharging during the April 5, 2005 inspection. <br />Michael Savage of Savage and Savage, Inc. was present during the dischazges and <br />obtained a compliance sample for the CDPS permit. Samples were chilled on ice and <br />delivered to Green Analytical Labs in Durango, Colorado for analysis within one hour of <br />collection. The sample results for this sample are appended with the discharge monitoring <br />reports. <br />Chain of custody for the samples was maintained and these records are appended with the <br />laboratory summaries. <br />L~ <br />Carbon Junction Mine Page 3 <br />Mnual Hydrologk Report for Water Year 2006 <br />