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<br /> <br />1313 Sherman Street, Room 821, Denver, CO 80203 P 303.866.3581 www.colorado.gov/water <br />John W. Hickenlooper, Governor | Robert Randall, Executive Director | Kevin G. Rein, State Engineer/Director <br /> <br /> <br /> <br /> <br />April 13, 2018 <br /> <br />Jared Dains, P.E. <br />Applegate Group, Inc. <br />1490 West 121st 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, 2018 through December 31, 2018 <br /> Contact information for Mr. Dains: 303-452-6611; jareddains@applegategroup.com <br /> <br />Dear Mr. Dains: <br /> We have received your letter dated December 28, 2017 requesting renewal of a substitute <br />water supply plan (“SWSP”) in accordance with § 37-90-137(11), C.R.S. to cover depletions caused by <br />gravel 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: <br />Table A – Pit Overview <br />Site Name <br />Stream <br />Reach <br />DRMS <br />Permit No. WDID Current Well <br />Permit No. New Permit <br />Required Exposed Surface <br />Area (acres) <br />Jeronimus Pit South Platte M-1999-034a 0203029 63281-F No 5.6b <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 75.6 <br />Distel Pit St. Vrain M-1989-029 0503000 67433-F & <br />76960-F No N/Ac <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 36.0 <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.