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COTTER CORPORATION <br />SCHWARTZWALDER MINE RML 369-03 <br />. SEMIANNUAL EFFLUENT REPORT <br />January - June 2009 <br />August 28, 2009 <br />OVERVIEW <br />This report provides semiannual trending data for environmental data associated with the site. <br />This report also provides data for effluents released from the Schwartzwalder Mine RML <br />restricted area for the past three (3) semiannual periods pursuant to RH 18.7.2. Sampling <br />locations, particularly for the air monitoring network have changed from boundary to middle of <br />the site areas. Current locations are shown on Figure 0-1. <br />Water sampling for the site was not designed to be responsive to the RML. Surface water <br />sampling continues to be conducted pursuant to the NPDES discharge permit. Groundwater <br />sampling is conducted for the purpose of the mining permit pursuant to the DRMS regulations. <br />However, since these requirements were integrated into the RHS procedures manual the results <br />are reported herein. <br />• <br />• <br />4