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Kerr (Marr) Mine - 2009 Annual Hydrology Report <br />All field data and sample collection for the water year was conducted under the direction of James <br />Mossman for Kerr. All sample analyses were performed by ACZ Laboratories, Inc. of Steamboat <br />Springs, Colorado. Discharge permit COG 850036 for the Loadout site (surface water) requires a <br />monitoring frequency of two (2) days per month. However, during most of 2009, surface water <br />monitoring was conducted on a weekly basis. <br />Field and laboratory data are included in Appendices A through D. Locations of the monitoring stations <br />and wells are shown on Map 1, Mine Area Monitoring Stations, and Map 2, Loadout Area Monitoring <br />Stations. <br />4.0 LOADOUT AREA ALLUVIAL GROUNDWATER <br />Two alluvial wells (AP-1 and AP-2) were monitored for field measurements in October 2008 and then on <br />a monthly basis from April through September 2009 in accordance with the permit. Both wells remained <br />frozen throughout March (first quarter). Field data collected are presented in Appendix A, 2009 Field <br />Data. Detail field data is listed from Oct, 1990 to Oct 2009 in the table "Monitor Wells - Loadout Site" <br />(Wells AP-1 & AP-2) located in Appendix A. Water levels have returned to historic levels in both wells <br />following a low water (drought) year in 2002. <br />Water quality samples were collected and analyzed on a quarterly basis (Water Year is Oct thru <br />following Sept). Samples were collected October 2008 and in May and July, 2009. First quarter periods <br />are mid-winter and monitor wells are frozen. As of January 1999, the parameter list for alluvial well <br />sample analysis was reduced to include only major elements and no trace metals. The individual <br />laboratory analyses are presented in Appendix C. <br />The mean field and laboratory historical measurements are presented in Tables 1 and 2, AP-1 and AP- <br />2 Historic Loadout Area Alluvial Water Quality Data. These general water quality indicators remained <br />consistent (with historic values) during this monitoring period for both wells. The EC inaccurate values <br />due to field equipment malfunction are not included in the figures.