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Hernandez, Alysha <br />From: <br />Stark, Jim <br />Sent: <br />Thursday, April 26, 2012 2:00 PM <br />To: <br />Welt, Kathy <br />Cc: <br />DRMS- Coal -Admin <br />Subject: <br />West Elk 1Q12 DMR's <br />Kathy, <br />The Division has received and reviewed the 1Q12 DMR's submitted this morning for the West Elk Mine. Only three <br />ponds discharged during the reporting period, the wastewater treatment pond (007A), MB -4 (008A) and pond SG -1 <br />(014A). All of the sampling was completed as required and there were no eiceedences noted. The Division has one <br />question regarding the reporting for pond SG -1. The detection level for the suspended solids for pond SG -1 was listed <br />a <20 mg /l and a value of <20 mg /l was reported. However, this detection level seems to be higher than the <br />"normal" detection level for suspended solids (of <10 mg /l or <5 mg /1). While the <20 mg /l detection level is still <br />below the daily and monthly maximums for suspended solids (70 mg /l and 35 mg /1, respectively), is still appears too <br />high to provide any useful information. This is further confused by the fact that a value of 19 mg /l was reported <br />for the suspended solids for pond MB -4 and values of 4mg /l and 7mg /l were reported for suspended solids for the <br />wastewater treatment pond. Please explain why the detection level for suspended solids was so high for pond SG- <br />1. Please contact me if you have any questions or comments. Thanks. <br />James R Stark <br />Environmental Protection Specialist <br />Colorado Department of Natural Resources <br />Division of Reclamation, Mining and Safety <br />(303) 866-31567 X8145 <br />«IVw. mining. state. co.0 s <br />