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sN eaCreirtGroup <br />A E N V I R O N M E N T A L S E R V I C E S C O M P A N Y <br />January 10, 2011 <br />Ms. JoAnne Ary <br />Cotter Corporation <br />P.O. Box 1750 <br />Canon City, CO 81215 <br />Dear Ms. Ary: <br />Enclosed is the report for chronic biomonitoring tests performed for Cotter Corporation on <br />effluent from the Schwartzwalder Mine Wastewater Treatment Facility discharge. There was no <br />significant toxicity to either test species at any effluent concentration. The sample passes WET <br />(Whole Effluent Toxicity) testing guidelines for this sampling period. <br />If you have any questions or concerns, please do not hesitate to contact me at (303) 661-9324 <br />Best regards, <br />Craig Win Iberg <br />Lab Manager <br />Enclosure(s): Invoice <br />Report <br />1341 Cannon Street • Louisville, CO 80027 - 303.661.9324 • 303.661.9325 fax • www.seacrestgroup.com