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sealing of the mine by the Mine Safety and Health Administration (MSHA) Oxbow had <br />proposed a temporary re -location for the mine water discharge Outfall 015 borehole to aid in <br />mine recovery efforts. As Permit CO -0000132 was expired and operating under an <br />Administrative Extension, CDPHE could not "modify" an expired Permit. Oxbow was <br />instructed to submit an application for an alternative Outfall 015B. The alternative dewater <br />borehole Permit application (March 26, 2013) resulted is the issuance (on April 16, 2013) of <br />Permit COG -850064 for an alternative Outfall 015B. The resultant dewater borehole pump(s) <br />operated from June 3, 2013 until September 9, 2013. Approximately 58,879,900 gallons (180.6 <br />acre-feet) were subsequently pumped from the mine and discharged to upper Elk Creek. The <br />pumps were later pulled and all hardware removed from the drill pads. On January 31, 2014 a <br />request was submitted to CDPHE to terminate COG -850064. During the active pumping of the <br />dewater boreholes, the water monitoring and reporting were conducted in accordance with the <br />terms and conditions found in the COG -850064 Permit. <br />During 2015, both of the boreholes were sealed. <br />1LI <br />