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DATE: <br />TO: <br />CC: <br />FROM: Sarah Brucker, P.E. <br />RE: <br />DEPARTMENT OF NATURAL RESOURCES <br />DIVISION OF WATER RESOURCES <br />Response to Reclamation Permit Partial Acreage Release Request Consideration <br />March 12, 2013 <br />Eric C. Scott, Environmental Protection Specialist <br />Division 1 Office, District 3 Water Commissioner <br />Home Office Pit, Permit No. M- 1977 -439 <br />Operator: Martin Marietta Materials, Inc. <br />Contact: Julie Mikulas, 970 - 227 -4041 <br />Sec. 33, Twp. 8 North, Rng. 69 West, 6th P.M., Larimer County <br />COMMENTS <br />John W. Hickenlooper <br />Governor <br />Mike King <br />Executive Director <br />Dick Wolfe, P.E. <br />Director /State Engineer <br />RECEIVED <br />MAR 1 2 2n13 <br />DIVISION OF RECLAMATION <br />MINING AND SAFETY <br />The applicant has requested a partial acreage release for the Home Office Pit, Permit No. M- 1977 -439. The <br />release concerns 94.12 acres containing two groundwater lakes with surface areas of approximately 37.3 and 25.4 <br />acres, also known as Trieber Lakes A and B. All marketable material has been removed from the subject 94.12 <br />acres. The City of Greeley has obtained DRMS Permit No. M- 2011 -049 in order to reclaim the site to a developed <br />water resource (water storage reservoirs). The City of Greeley is currently responsible for augmenting all <br />depletions from Treiber Lakes A and B. The City of Greeley intends to construct a slurry wall or other form of liner <br />around the two lakes to create a relatively impermeable barrier between the alluvial ground water and the <br />reservoirs. Until such time as the slurry wall has been constructed in accordance with the State Engineer's Lining <br />Criteria and approved by the Division 1 Office, depletions from Treiber Lakes A and will be replaced under a <br />substitute water supply plan. The Partners Combined Substitute Water Supply Plan, which includes Treiber Lakes <br />A and B and references the Home Office Pit. is currently valid through December 31, 2013. If a liner is not <br />approved prior to the expiration date of this SWSP, a new SWSP or a renewal of the existing SWSP must be <br />obtained by the City of Greeley. <br />Accordingly, the State Engineer's Office is of the opinion that the acreage release for the subject 94.12 acre <br />portion of the Home Office Pit is acceptable and recommends approval. <br />The applicant may contact the State Engineer's Office with any questions. <br />Office of the State Engineer <br />1313 Sherman Street, Suite 818 • Denver, CO 80203 • Phone: 303 -866 -3581 • Fax: 303 - 866 -3589 <br />www.water. state.co.us <br />