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EASTSIDE mine <br />Summary of 2004 Water Monitoring <br />Extent of Minine <br />No mining has occurred at the Eastside Mine since December 1994. The buildings and surface facilities <br />were remove from the mine site, the portals were sealed and surface azea was regazded in May, June and <br />July of 1995. In September of 1995 the disturbed azea was seeded with the approved seed mixture as <br />listed in the approved Mining and Reclamation Permit. The azea is inspected on a quarterly basis to <br />ensure that the stormwater management plan and sediment control system are functioning property. <br />The sediment control system was removed and reclaimed in December 2001. The area regazded was <br />seeded in October 2002. <br />Flow and Field Parameters <br />The flow and field parameters of the Harvey Gap Outlet above and below the mine continue to <br />demonstrate the seasonal dischazges from the Harvey Gap Reservoir. The Above Mine pH ranged from <br />6.5 to 7.5. The aabove Mine conductivity ranged from 496 to 707 microohms/cm. Above Mine <br />Temperature ranged from 5.1 to 24.2 degrees Centigade. The Below Mine pH ranged from 6.0 to 7.0. <br />The Below Mine Conductivity ranged from 484 to 860 microohms/cm. Below Mine Temperature <br />ranged from 1.2 to 20.9 degrees Centigrade. The Seep pH ranged from 6.0 to 7.6. Seep conductivity <br />ranged from 781 to 1029 microohms/cm. Seep temperature ranged from 2.6 to 18.3 degrees Centigrade <br />Chemical Parameters <br />In the Above Mine samples the average Calcium is much greater than previous yeazs. That is a result of <br />the July sample being much higher than any previous sample. The results from the sample taken in July <br />for the Seep also shows a high Calcium value. As all the other samples have been within the same <br />range, the July sample was considered an anomaly. All the other pazameters appeazed to be within the <br />range of previous historical sample results. <br />Impacts on Surface and Ground Water <br />No dischazge has occurred from Sediment Pond SP-1 or from the underground mine workings. <br />The water monitoring data aze listed on the attached tables found in the Data and Statistical Information <br />section beginning on Page 5 to and including Page 10. A comparison of 2004 data with 1996- 2003 data <br />indicates no measurable impacts on ground or surface water have occurred due to mining or reclamation <br />activities at the Eastside Mine. Tables with the 1996-2004 data, which were compazed, are on pages 11 <br />through 21. <br />Page 3 of 21 <br />