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OCT 2 9 N!"t <br />Sunday, 27 October 2013 <br />To: Garrett C. Varra, Vice President of Operations <br />Office of Special Projects <br />Varra Companies, Inc. <br />8120 Gage Street <br />Frederick, Colorado 90516 <br />From* Paul A. Lightsey <br />2400 East 16th Street <br />Greeley, CO 80631 <br />Subject: PUBLIC NOTICES: Varra-Coulson Resource Project, Regular Impact (112) Permit <br />Application M-2013-064 - Required Information for Adjacent Landowners. <br />Dear Sir: <br />We received the notification by mail on 16 October 2013 regarding the Permit Application stated in the <br />subject line of this letter. On the 21 of October I called your office and requested copies of additional <br />documentation; specifically, the Stability Analysis Report and the Dewatering Report. We received <br />those documents by mail on 26 October 2013. <br />After reviewing those documents, I am deferring signing the Statement of Understanding. We do not <br />concur at this time. <br />Our particular concern is related to the impacts on our well. In the Dewatering Evaluation Report <br />prepared by AWES, LLC dated 22 July 2013. On Plate 4 showing the results for the Durham Pumping <br />Simulation, the location of our well falls on the 4620 ft contour for the water table elevation. The <br />Coulson Pumping Simulation results presented on Plate 5 show the height at our well dropping to <br />around 4598 ft, or a drop of 22 ft. Comparing observed to calculated values presented on Plate 6, the <br />uncertainty is on the order of 4 ft, <br />Our current well uses a centrifugal pump located just below grade level. The centrifugal pump depends <br />on suction and therefore cannot lift water greater than the atmospheric pressure, which is nominally <br />648 Torr, or equivalent to 28.9 ft of water at the altitude of our house. Considering that the water table <br />is typically 5 to 7 ft below the pump during wet, non-drought conditions, an additional drop of 22 ft <br />would mean our well would be of marginal use in wet years, and in dry conditions, of no use in its <br />current configuration. <br />Looking forward to how you might address these concerns. <br />Paul A. Lightsey <br />