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5/2/2014 State.co.us Executive Branch Mail - FM: Elk Creek April 2014 Inspection <br />Bowles - DNR, Brock <brock.bowles @state.co.us> Wed, Apr 30, 2014 at 3:29 PM <br />To: Alysha Hernandez <alysha.hernandez@state.co.us> <br />Alysha, <br />Please scan this email and both photos for Elk Creek C-1981-022, <br />Index Name: Inspection, <br />Doc Date: April 30, 2014, <br />Doc Name: Plugging Coal Smoke Vent, <br />From: Jim Kiger <br />To: DRMS <br />Thank, you, Brock <br />---------- Forwarded message ---- - - - - -- <br />From: Jim Kiger <Jim. Kiger@oxbow.com> <br />Date: Wed, Apr 30, 2014 at 2:31 PM <br />Subject: RE: Elk Creek April 2014 Inspection <br />To: "Bowles - DNR, Brock" <brock,bowles@state.co.us> <br />On 4/24/2014 we sealed the smoking vent. Seethe attached photos.( recall this is the old Somerset mine <br />and not the Sanborn Creek mine) <br />We used a track hoe excavator to over dig and open up the hole. Then we added a mixture of clay, sa <br />and water to forma slurry to seal the bottom of the hole. We then poured about 7-8cy of concrete t <br />form a cap on top of the slurry. The cap dimensions were approximately 12' wide by 6' thick. We then <br />topped the hole off with surrounding dirt and rock materials. 11 <br />1W. TUMNIMMMIll • Umfillill <br />Environmental Manager <br />Oxbow Mining, LLC., Elk Creek Mine <br />WWW.rxrrrri <br />970-929-5806, fax: 970-929-5177 <br />hftps:llmail.gc)ogle.conVmaillul0l?ui=2&ik--e29129fcb5&view --pt&search=inboy&th=145b48ae847f2377&siml=145b48ae847f2377 1/3 <br />