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r - <br />From: Mark McLean <mark.mciean @deereault.com> <br />Date: Tue, Jun 11, 2013 at 10:13 AM <br />Subject: Evans #2 Concept <br />To: "John Van Oort 0ohn.vanoort @state.co.us)" <john.vanoortCcDstate.co.us >, 'Bill Tyner (bill tyner @state.co.us)" <br /><bi11.tyner@state.co.us> <br />Cc: Melissa Peterson - DNR < melissa .a.peterson @state.co.us >, "Frey, Heidi" <Heidi.Frey @state.co us >, Scott Lorenz <br /><scott.lorenz @gmail.com> <br />John and Bill, <br />I received confirmation from Melissa Peterson at SEO that we would be able to add irrigation to the Evans <br />#2 Pit gravel pit well permit as long as the depletions are augmented. Bill, I believe you've said you are <br />satisfied that there is a way to do that with AGUA supplying the replacement water. <br />John, you filled me in on the concept that you, John Sliman, and John Paul Ary had over a year ago about <br />how this could be put together. I've been thinking about it and about the extra complexity of running a return <br />flow ditch back from the Excelsior Ditch to the river for any water that John Sliman did not use. You <br />identified that there would be a need to measure the water being returned and then also augmenting the <br />additional evaporation. <br />For the benefit of all involved, I'm considering an alternative which I've sketched out on the attachment <br />(sorry about the poor quality - the scanner decided to change colors in places). It simply involves an <br />irrigation delivery pipeline connected to the dewatering discharge. There would be a flow meter to measure <br />the irrigation delivery, and valves to split the dewatering discharge between the irrigation delivery pipeline <br />and the existing dewatering discharge to the Arkansas River. Assuming John Sliman and the Evans #2 site <br />staff can work out the communication and control regarding when and how much water to deliver for <br />irrigation I think this method would greatly simplify the operation while still allowing for proper accounting <br />of depletions, and would produce the least amount of non - beneficial additional depletions (evap) and <br />accounting complexity. <br />Could you please let me know as soon as you can whether you see any problem with this approach? <br />Thank you very much, <br />Regards, <br />Mark <br />Mark A. McLean, P.E. <br />PrincipalNice- President <br />Deere & Ault Consultants, Inc. <br />600 S. Airport Road, Suite A205 <br />Longmont, CO 80503 <br />(303) 651 -1468 office <br />(303) 651 -1469 fax <br />(303) 709-93186 cell <br />mark mclean ct deereault com <br />