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• ponds are also inspected on a quarterly basis for compliance with CDMG regulations. Information on pond discharges and sediment pond inspections follows the hydrologic monitoring program information. DESCRIPTION OF THE HYDROLOGIC MONITORING PROGRAM The hydrologic program followed for the Carbon Junction Mine is described below. With the approval of Technical Revision 03 in April 1997, the original hydrologic monitoring program for the mine was modified. Technical Revision 03 modified the sampling frequency for springs and groundwater wells to semi-annual, with the exception of groundwater well 95-1, which was to be sampled quarterly in 1997, and semi-annually thereafter. The springs to be monitored were identified as 1, 2, and 4. The groundwater wells to be monitored were 17-B, 82-1, 82-4, and 95-1. During the review of Technical Revision 08 in late 1997, an in-depth analysis of the hydrologic monitoring program was undertaken. It was acknowledged that several springs and groundwater wells had been either misidentified or identified with multiple designations. The hydrologic monitoring program was modified in the permit text to clearly identify the springs and groundwater wells to be sampled. The current hydrologic monitoring program (page 5-36 of the permit document) requires the semi-annual sampling and analysis of springs 1 (upper Carbon Junction Canyon), 3 • (REA Canyon below the mine), and 4 (Carbon Junction Canyon below the mine) when flowing, and the semi-annual sampling and analysis of groundwater wells 17-B (above the mine), 94-1 (mid-mine), and 95-1 (below the mine). The locations of the springs and wells currently monitored are depicted on Figure 1. During the permit renewal process in 1998, Technical Revision 09 clarified the parameters to be analyzed when sampling is conducted (page 5-36a). Sorinn Monitorin¢: Water Year 2002 Spring 1 (Upper Carbon Junction Canyon) did not flow during water year 2002. This spring has been dry since the early 1980's. Spring 3 (REA SPG #3) was sampled February 4, 2002, March 20, 2002, and September 5, 2002. Spring 4 (CJ-LO-SPG #4) was sampled December 27, 2001, March 20, 2002, and September 5, 2002. Both springs were dry during the September 5, 2002 sampling attempt. Spring monitoring included a fiall- suite laboratory analysis as well as collection of field parameters. During the December 27, 2001 and February 4, 2002 sampling, field parameters were not collected for the springs. During the March 20, 2002 sampling, flow measurements were not obtained for either spring. • Larbon JunGtlon Mine Paga 2 Annual Ftydrologk Report for Water Year 2002