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Outfall 029 was added to the permit to allow for pumping, treatment and discharge of B - <br />seam water from the mine workings to the surface. The facilities associated with this <br />system were constructed and commissioned in May of 2012. No discharge has occurred <br />through Outfall 029 to date. <br />The NPDES permit was renewed effective October 1, 2007. A renewal application was <br />timely submitted in March of 2012. The CDPHE has not renewed this permit to date and <br />we continue to operate per the amended permit received when Outfall 029 was added. <br />2.2.1.7 Whole Effluent Toxicity (WET) Testing WET testing for the D -Seam discharge, <br />Outfall 026, showed excessive toxicity to Daphnia magna and Fathead minnows. We are <br />currently following NPDES Permit protocol to determine the cause of the toxicity then <br />develop a suitable plan to address this issue. <br />2.3 Red Wash Alluvial Monitoring Program <br />Portions of Red Wash experienced subsidence due to longwall mining at the Deserado <br />Mine. As required by CMLRD (now DRMS), BME initiated a detailed hydrology monitoring <br />program in Red Wash above the first longwall panel to be mined. The monitoring program <br />consisted of nine (9) holes drilled in the Red Wash alluvium across the predicted zone of <br />subsidence from longwall panel 1 (LW -1). Water levels in the holes were monitored before, <br />during, and after subsidence took place. The purpose of the monitoring program was to <br />determine if surface flow in Red Wash was lost to bedrock as the result of subsidence. <br />The monitoring data, analysis and conclusions were submitted to CMLRD in an Interim <br />Report, November 1987, and in the Third Annual Hydrology Report, January 1988. The <br />monitoring program determined that surface flow in Red Wash was not lost to bedrock as a <br />result of subsidence. The major conclusions of the study were: <br />• Recharge of the basal alluvium was from the upper sandstone facies (bedrock) <br />and not from infiltration of surface runoff. <br />• Subsidence cracks in Red Wash as the result of longwall mining were quickly <br />filled with clay and silt preventing loss of surface water flow to bedrock. <br />Longwall mining of panel 2 (LW -2) passed under Red Wash in September 1988. The <br />surface elevation subsided approximately 3.7 and 4.1 feet at RW -7 and RW -9 respectively. <br />Events in Red Wash over LW -2 were expected to occur in the same fashion as those seen <br />over LW -1. The subsidence trough was developed and any subsequent flow in Red Wash <br />11 <br />