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<br /> <br />January 30, 2019  <br />  <br />Jared Dains, P.E.  <br />Applegate Group, Inc.  <br />1490 West 121​st​ Avenue, Suite 100  <br />Denver, CO 80234  <br />  <br />Re:Aggregate Industries South Platte Combined Replacement Plan (WDID 0202565)  <br />Plan IDs 3614, 4773, 3624, 4772, 4616, 3437, 3376, 3650, 3668, and 5475  <br />Water Division 1, Water Districts 2, 3, 5 and 6  <br />Weld and Adams Counties   <br />Approval Period: January 1, 2019 through December 31, 2019  <br />Contact information for Mr. Dains: 303-452-6611; ​jareddains@applegategroup.com   <br />  <br />Dear Mr. Dains:  <br />We have reviewed your letter dated December 19, 2018 requesting renewal of a substitute  <br />water supply plan in accordance with § 37-90-137(11), C.R.S. to cover depletions caused by gravel  <br />mining operations at multiple mine sites operated by Aggregate Industries (“Aggregate” or  <br />“Applicant”) along the South Platte River mainstem, Lower Poudre River (Timnath Reservoir inlet to  <br />the confluence with the South Platte River) and St. Vrain River. This plan proposes to replace  <br />depletions resulting from current and past mining at ten (10) sites specified in Table A below. The  <br />required fee of $2,570 (10 sites × $257/site renewal fee) has been received (receipt nos. 3689805 &  <br />3689806).   <br />Table A – Pit Overview  <br />Site Name <br /> <br />Stream  <br />Reach <br />DRMS  <br />Permit No. WDID Current Well  <br />Permit No. <br />New Permit  <br />Required <br />Exposed  <br />Surface Area  <br />(acres) <br />Jeronimus Pit South Platte M-1999-034​a 0203029 63281-F No 5.6​b <br />Hazeltine Pit South Platte M-2004-031 0203030 63224-F No 0 <br />Brighton Pit South Platte M-1977-436 0203031 56993-F No 5.0 <br />Tucson South Pit South Platte M-2004-044 0203032 56829-F No 2.0 <br />Wattenberg Pit South Platte M-2001-008 0203034 78627-F No 5.0 <br />Platte Valley Pit South Platte M-1989-120 0203035 78626-F No 60.0 <br />Distel Pit St. Vrain M-1989-029 0503000 67433-F &  <br />76960-F No N/A​c <br />Tull Pit St. Vrain M-1994-027 0603001 74831-F No 1.0 <br />W.W. Farms Pit Lower Poudre M-1999-098 0303014 76207-F No 49.0 <br />F-Street Pit Lower Poudre M-1992-069 0303015 67989-F No 26.2 <br />a ​The Jeronimus Pit, was added to the M-1999-034 permit (historically referred to as the “Fulton Lakes Pit”) via an  <br />amendment approved by the DRMS on July 8, 2003.  Aggregate had completed mining at the Fulton Lakes Pit and  <br />reclamation of the site and ownership was transferred to the City of Thornton.​ ​The only consumptive use of water under  <br />DRMS permit no. M-1999-034 is associated with the Jeronimus Pit.  <br />b ​5.6 acres exposed after December 31, 1980 and 14.7 acres exposed prior to January 1, 1981. <br />c​ ​The City of Longmont has assumed the augmentation responsibilities for lagged and future depletions from evaporation  <br />and consumptive use by wetlands vegetation at the site under their plan for augmentation decreed in case no. 09CW271. <br /> <br />1313 Sherman Street, Room 821, Denver, CO 80203 P 303.866.3581​ ​www.colorado.gov/water  <br />Jared Polis, Governor | Dan Gibbs, Executive Director​ ​| Kevin G. Rein, State Engineer/Director