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<br /> <br />October 29, 2003 <br />Subject: Geotechnical Assessment of <br />Construction Activities for Amendment of <br />Permit, Brighton Water Storage Project, <br />Adams County, Colorado <br />Job No. 03-1076 <br />Mr. Les Ewegen <br />Les Ewegen, LLC <br />37615 Weld County Road 39 <br />Eaton, Colorado 80615 <br />Dear Mr. Ewegen: <br />At your request, Ground Engineering Consultants, Inc., (GROUND) has evaluated the <br />likely geotechnical impacts of several proposed construction activities for the Brighton <br />Water Storage Project southeast of the intersection of 124`" Avenue and U.S. Highway <br />85, in Adams County, Colorado, with regard to structures within 200 feet of the activities. <br />The following operations were considered: <br />1) Deepening by approximately 5 feet the southwestern quarter of the skiing pond <br />on property to the west of the Brighton Water Storage Project. <br />2) Constructing a temporary construction traffic bridge across the Fulton Ditch near <br />120"' Avenue. <br />3) Continuing to use the existing temporary construction access road across the <br />property south of the Brighton Water Storage Project. <br />With regard to deepening of the skiing pond, we understand that chat work is being <br />performed for that property owner under separate agreement from the construction of <br />the Brighton Water Storage Project for the City of Brighton. GROUND has not <br />performed subsurface exploration in the vicinity of the pond proposed for deepening. <br />The existing pond slopes in that area appear to have been stable against deep-seated <br />failure for an extended period of time. No structures appeared to be within 200 feet of <br />ROUIII <br />E N G I N E E R I N G C O N S U L T R N T S <br />41 Inverness Drive East, Englewood, CO 80112-5412 Phone (303) 289-1989 Fax (303) 289.1686 <br />North Ofrice: 7393 Dahlia Street, Commerce City, CO 80022-1834 www.groundeng.eom Fax (303) 289.6742 <br />