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August 5, 2015 4iio <br /> EARTH ENGINEERING <br /> CONSULTANTS, LLC <br /> Todd Creek Village Metro District <br /> 10450 East 159th Court <br /> Brighton, Colorado 80602 <br /> Attn: Mr. Roger G. Hollard (roger Requinoxland.com) <br /> Re: Subsurface Exploration Report <br /> Evaluation of Existing Dam and Signal Reservoir Modifications/Improvements <br /> South of 168"' and East of Quebec Street <br /> Brighton, Weld County, Colorado <br /> EEC Project No. 1122096 <br /> Mr. Hollard: <br /> Enclosed, herewith, are the results of the subsurface explorations completed by Earth <br /> Engineering Consultants LLC (EEC) personnel for the referenced project. The results presented <br /> herein are from two (2) separate field explorations; the first one conducted in November of 2012 <br /> which consisting of drilling and sampling ten (10) test borings positioned within the interior <br /> portion of the existing Signal Reservoir, and the second exploration, conducted in June of 2013' <br /> which consisted of drilling and sampling five (5) test borings within the existing Signal <br /> Reservoir dam alignment and two (2) additional borings at the toe of the earthen dam <br /> embankment slope alignment as presented herein. We have also incorporated the <br /> findings/comments from various design/consultation meetings with the project team and the <br /> Colorado Division of Water Resources personnel over the last year regarding the proposed <br /> improvements. <br /> As we understand, this project will consist of deepening the existing Signal Reservoir and <br /> modifying/enhancing the existing dam alignment along the northern perimeter of reservoir <br /> situated south of 168t" and east of Quebec Street. The primary purpose for the Signal Reservoir <br /> improvements is to allow for an increase in storage capacity. To evaluate and analyze the <br /> feasibility for the proposed expansion/improvements of the existing Signal Reservoir, EEC <br /> personnel were requested to perform two (2) subsurface explorations which consisting of drilling <br /> and sampling the underlying subsurface conditions beneath the bottom of the existing reservoir, <br /> with a total of ten (10) soil borings in November of 2012, and a supplemental exploration <br /> conducted in June of 2013, which consisted of seven (7) additional borings completed within the <br /> existing dam alignment as shown herein. The November 2012 borings were positioned <br /> 4396 GREENFIELD DRIVE <br /> WINDSOR, COLORADO 80550 <br /> (970) 545-3908 FAX (970) 663-0282 <br /> www.earth-engineering.com <br />