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/I-/x'77-3od --- <br />Cotter <br />Via Email and U.S. Mail <br />August 31, 2010 <br />Colorado Department of Public alth and Environment <br />7-0 Water Ouality Control Division / WQCD-B2-CAS <br />Compliance Assurance Section <br />Attention: Michael Harris <br />4300 Cherry Creek Drive South <br />Denver, CO 80246-1530 <br />Subject: July 14, 2010 Surface Water Monitoring Data for Sampling Station SW-BPL on <br />Ralston Creek "downstream" of the Schwartzwalder Mine <br />Reference: Paragraph 26, WQCD Notice of Violation/Cease and Desist Order, Number: <br />I0-100601-1, June 1, 2010 <br />Dear Mr. Harris: <br />On August 24, 2010, Cotter Corporation (N.S.L.) ("Cotter") received a data report from <br />Energy Laboratories which included results for a July 14, 2010 stream sampling event <br />conducted at monitoring station SW-BPL. Monthly monitoring and reporting requirements for <br />this "downstream" station are specified in paragraph 26 of the above referenced Notice of <br />Violation/Cease and Desist Order ("Paragraph 26"). Please find enclosed key excerpts of the <br />analytical data report that are specifically relevant to requirements of Paragraph 26, including <br />results for water samples collected on July 14, 2010 at sampling station SW-BPL. <br />Note that certain analytical parameters specified in the Order could not be analyzed and <br />reported for this sample (i.e., Gross Alpha, Gross Beta, Ra-226+228, and weak acid dissociable <br />Cyanide). It is expected that all parameters specified in the Order for "upstream" and <br />"downstream" locations (SW-AWD and SW-BPL), along with all other monitoring <br />requirements and schedules specified by the WQCD, DRMS, and the Radiation Management <br />Unit of the CDPHE, will be included in sampling results going forward. <br />Also, note that the "upstream" location (SW-AWD) was sampled on July 13, 2010 and was <br />thus submitted to the laboratory under separate chain of custody and sample submittal forms. <br />Those results were received earlier by Cotter and the results were submitted to WQCD on <br />August 19, 2010 under a separate cover letter. Those results were also subject to the <br />limitations as noted above. <br />Cotter Corporation Telephone (719) 275-7413 <br />Canon City Mill, P.O. Box 1750, Canon City, CO 81215-1750 USA Fax (719) 275-1669