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Chris Gilbreath <br />Page 3 <br />20 May 2015 <br />k. Response Accepted. <br />1. Response Accepted. <br />in. The Division is looking at the as -built drawing for the West Taylor Pond with a latest <br />revision date of 7/26/2012. If there is a more recent drawing, please advise. It appears that <br />the emergency spillway elevation on the drawing is still different than the one in Table 4 <br />(albeit a small difference). A greater difference is the height of the riser: the table says 16 <br />feet but the drawing indicates that it is 10.5 feet. This was calculated by subtracting the <br />elevation of the top of the horizontal pipe (7460.5) from the elevation of the top of the <br />spillway (7471). Please explain this or revise the error. <br />n. Response Accepted. <br />o. Response Accepted. <br />p. Response Accepted. <br />q. The Division did not find the revised pages in the adequacy response submittal. Please <br />provide the pages for review. <br />r. Response Accepted. <br />s. Response Accepted. <br />t. The Division did not find the revised pages in the adequacy response submittal. Please <br />provide the pages for review. <br />19. Response Accepted. <br />20. Response Accepted. <br />Rule 4.09 — Disposal of Excess Spoil <br />21. Response Partially Accepted. While the Division agrees with the changes to the footprints of the <br />fills, there was no geotechnical review included with this submittal in Volume 13. Please submit <br />the geotechnical review for the South Taylor Fills. <br />This concludes the Division's second adequacy review letter for the Colowyo Mine's Technical Revision <br />105. Please contact me at (303) 866-3567 X8145 or jim.stark&state.co.us if you have any questions or <br />comments. <br />Sincerely, <br />James R Stark <br />Environmental Protection Specialist III <br />