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/braun <br /> Braun Environmental, Inc. <br /> 355 S.Teller St,Suite 200,Lakewood,Colorado 80226 Office:303-697-0950 888-988-7698 Fax 303-697-2140 <br /> September 24,2014 <br /> Tom Cazier RECEIVED <br /> Colorado Division of Reclamation,Mining and Safety(DRMS) <br /> 1313 Sherman, Room 215 S iJ ` <br /> Denver Colorado 80203 <br /> �/ DIVISION OF RECLAMATION <br /> RE: Mineral Mountain Permit No M-2014045-Acid Rock Report MININGAND SAFETY <br /> Dear Mr.Cazier: <br /> I spoke with Lance Barker this morning and he said that you wanted to see proof of testing for acid generation in <br /> rock. A copy of that report is attached. <br /> Braun did perform testing on Mineral Hill materials last summer and produced a report for the client. The report <br /> held no surprises in the reported amounts of sulfur,or of the buffering capacity of the country rock. When you read <br /> the report,don't forget the definition of"grade"and the important difference between it and"concentration". <br /> With your working experience in Cripple Creek, I thought you would know as well as anyone that the majority of the <br /> rock in Cripple Creek is not grossly acid generating with one exception. This work has already been done by <br /> Anglo's consultants including Golder,and any geologist should be able to quickly determine that their assessment is <br /> correct based on a simple understanding of mineralogy. As was the case with the recent Murphy permit,I fear that <br /> lack of knowledge on this issue simply adds another cost to an already stressed industry,requiring it to spend more <br /> money to prove the obvious. <br /> I do have one concern over the time extension you granted yourself for completion of the permit. Teller County and I <br /> had worked to set up a schedule and I had assumed that you also would also keep yours. If you don't get through <br /> your review fairly quickly,we will need to start over with the County. This can be done,but the procrastination by <br /> DRMS is going to affect others. <br /> Give me a call if you have questions. I would still prefer getting though the more elementary questions on the phone <br /> so we can save expense for both the State and my client. <br /> Sincerely, <br /> BRAUN ENVIRONMENTAL, INC. <br /> ee5;�'e,OA� <br /> C.A. Braun, P.E. RECEIV'FD <br /> enc. '"SEP 2 6 2014 <br /> cc DIVISION OF LAMATION <br /> L. Barker MININGAND SAFETY <br /> CAB/rl <br />