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STATE OF <br />COLORADO <br />Re: <br />1 message <br />Boulay - DNR, Mike <mike.boulay @state.co.us> <br />To: "Berry - DNR, David" <david.berry@state.co.us> <br />Cc: Daniel Hernandez - DNR <daniel.hernandez @state.co.us> <br />Berry - DNR, David <david.berry@state.co.us> <br />Thu, Jun 19, 2014 at 11:56 AM <br />I have addressed each question with the following attachments. See first attachment for written response to <br />questions. <br />On Thu, Jun 19, 2014 at 9:02 AM, Berry - DNR, David <david.berry@state.co.us> wrote: <br />Hi Mike - I spoke with Andrew Martsolf (Mesa Co. Sheriff's Dept, Emergency Manager) last night, and he <br />asked for a local contact. I gave him your name and number. <br />I also committed to getting him some information to answer his questions. <br />1. Can you get me the most recent water quality data for the underdrain, and if not available the mine pool <br />data. Please also give a quick description of the NPDES discharge location for the underdrain flow. If you can <br />PDF the data, that would be great. <br />2.Andrew was wondering about the impact of a potential large scale discharge on irrigation for the valley. I <br />stated that there should not be any toxics of concerns, but that there would likely be a large amount of saline <br />and very muddy water. Is that correct? <br />3. He asked about volume. I recalled that we think the inflow from above is about 2-4 cfs, for about 4 weeks? <br />Is that correct, and could you get me a quick calc on the acre -feet translation for this inflow. <br />4. He also asked if the mine is up or downstream from the major drop structure /irrigation outtake for the Grand <br />Valley. I can check the aerials, but do you know the answer? <br />Thanks, <br />D <br />Michael P. Boulay, P.G. <br />Environmental Protection Specialist <br />Coal Regulatory Program <br />AIMM COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Department of Natural Resources <br />P 970.243.1571 1 F 970.241.1516 <br />101 South 3rd, Suite 301 Grand Junction, CO 81501 <br />mike. boulay@state.co.us I http: / /mining.state.co.us <br />