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Division of Water Resources <br /> November 24, 2020 <br /> Jennifer S. Lindahl, P.E. <br /> Bishop-Brogden Associates, Inc. <br /> 333 West Hampden Avenue, Suite 1050 <br /> Englewood, Colorado 80110 <br /> Re: Morton Lakes Pit Substitute Water Supply Plan (WDID 0202616) <br /> Morton-Holton Lakes Mine DRMS File No. M-2008-082 (WDID 0203053) <br /> Sections 1 and 12, T1 N. R67W of the 611 P.M. <br /> Sections 6 and 7, T1 N. R66W of the 6t" P.M. <br /> Water Division 1, Water District 2, Weld County <br /> SWSP ID: 5178 <br /> Approval Period: October 1, 2020 through December 31, 2021 <br /> Contact phone number for Ms. Lindahl: (303) 806-8952 <br /> Contact email address for Ms. Lindahl: jlindahl@bbawater.com <br /> Dear Jennifer S. Lindahl, P.E.: <br /> We have reviewed your letter dated October 1, 2020 requesting renewal of the substitute water <br /> supply plan ("SWSP") to cover depletions at the Morton Lakes Mine ("Morton Lakes") and Holton <br /> Lake Mine ("Holton Lakes"), operated by Ready Mixed Concrete Company ("RMCC" or Applicant"). <br /> On March 6, 2017 the Colorado Division Mining and Safety ("DRMS") approved the incorporation of <br /> the Holton Lakes Mine into the Morton Lakes Mine, therefore both mining permits are now operating <br /> under Morton Lakes Mine (M-2008-082). <br /> The current SWSP for the Morton-Holton Lakes was approved on February 13, 2020 to cover <br /> operations for January 1, 2020 through December 31, 2020. This SWSP seeks to amend the previously <br /> approved SWSP for the period of October 1, 2020 through December 31, 2020 and will cover the <br /> estimated depletions from January 1, 2021 through December 31, 2021. This SWSP supersedes the <br /> SWSP approved on February 13, 2020 for the period of October 1, 2020 through December 31, 2020. <br /> The required fee of $257 for this SWSP has been submitted (receipt no. 10006688). <br /> SWSP Operations <br /> The Morton-Holton Lakes Mine is located in the SE 1/4 of Section 1 and the NE 1/4 of Section 12, all in <br /> Township 1 North, Range 67 West of the 6t" P.M., and the SW 1/4 of Section 6, and the NW '/4 of <br /> Section 7, all in Township 1 North, Range 66 West of the 6t" P.M. The depletions that result from <br /> the mining operation over the period of this SWSP include evaporation from exposed groundwater, <br /> dust suppression, dewatering, water used to wash mined product, water removed in mined product, <br /> refill of Stage 2, and water pumped for construction of reservoir storage. <br /> Mining of the Morton-Holton Lakes site is presently expected to last up to fifteen years. The current <br /> mining plan for the site is shown in attached Figure 1. The replacement of depletions for Morton- <br /> Holton site is fully consumable water leased from the City of Aurora. <br /> OF.COL <br /> �v <br /> 1313 Sherman Street, Room 821, Denver,CO 80203 P 303.866.3581 www.colorado.gov/water <br /> Jared S. Polis, Governor Dan Gibbs, Executive Director Kevin G. Rein, State Engineer/Director I F'= - O <br /> ti 1876 <br />