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f <br /> RMCC-A&W CHRONOLGY <br /> March 14, 2018 <br /> Ready Mixed Concrete Company("RMCC"), in accordance with Permit No. M-2008-082, AM01 <br /> issued by the Colorado Division of Reclamation, Mining and Safety("DRMS") mines <br /> construction aggregate materials from the Morton-Holton Lakes property near Fort Lupton (see <br /> map attached). A Substitute Water Supply Plan ("SWSP") issued by the Colorado Division of <br /> Water Resources ("DWR"), most recently approved on November 21, 2017, applies to RMCC's <br /> Morton-Holton operation. <br /> A&W Water Services, Inc. ("A&W") operates a water well under Permit No. 61793-F as issued <br /> by DWR. A&W provides water to the oil and gas industry under its permit,which allows it to <br /> withdraw 8.5 acre-feet per week with an annual limitation of 252 acre feet. The maximum <br /> permitted pumping rate of A&W's well is 500 gallons per minute ("gpm"). <br /> A&W has asserted adverse impacts to its well resulting from RMCC's mining at Stage 6B of the <br /> Holton-Morton property. The purpose of this chronology is to summarize the communications <br /> between RMCC and A&W and facts relevant to A&W's claim that RMCC's dewatering of Stage <br /> 6B is impacting the A&W well. <br /> • October 3 and October 4, 2016- RMCC applies to DWR for separate gravel well permits for <br /> Stage 6A and Stage 6B at Morton-Holon Lakes. In anticipation of filing the applications, <br /> RMCC determines that the A&W well is not located within 600 feet of the two gravel well <br /> permit locations and that notice to A&W per Section 37-90-137, C.R.S., is not required. <br /> RMCC nonetheless contacts A&W in January 2017 to alert A&W of the gravel well <br /> permitting actions. Permit 80374-F for Stage 6A was issued on October 28, 2016 and Permit <br /> 80826-F for Stage 6B was issued on April 20, 2017. <br /> • May 4, 2017- RMCC and A&W meet onsite to view the A&W well and to discuss possible <br /> effects of mine dewatering of Stage 6B on the well. A&W agrees to provide RMCC <br /> information concerning the well and a nearby monitoring well A&W owns and operates. <br /> A&W agrees to have RMCC's water engineers, Bishop-Brogden Associates, Inc. ("BBA"), <br /> prepare an impact report to be based on the well information to be supplied by A&W and <br /> water levels observed in the adjacent monitoring well. <br /> • May-September 2017—BBA requests on various occasions information from A&W about its <br /> well, including its total depth, its static and pumping water levels, water pumping rates,the <br /> depth at which the pump is set and well production data. A&W does not provide this <br /> information to BBA. A&W asserts that the well must be able to sustain a pre-mining <br /> pumping rate of 400 gpm. <br />