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<br />~~<<.~ .I <br /> <br />...." .... <br />~ ... ..~ <br /> <br />CONSULTING ENGINEERS:! GEOLOGISTS, CONSTRUCTORS <br />600 SQuth Carr street <br />P. O~ Box 260880 <br />Lakewood, Colorado 80226-0880 U.S.A+ <br /> <br />UEBLACKER ASSOCIA TES <br /> <br />PhonelFax: ++303-988-9489 or 303-279--0156, e-mail: hueblacker@ao1.com <br />September 22,. 2003 <br />Dave Miller, President <br />NATURAL ENERGY RESOURCES COMPANY <br />p,. O~ Box 567 <br />Palmer Lake, CO 80133 <br /> <br />Subject: Phase 1- Feasibility Level Geologic and Geotechnical Investigation of <br />U niou Park Dam. <br /> <br />Dear Dave: <br /> <br />Ueblacker Associates is pleased to inform you that the field mapping for the subject <br />investigation bas been completed as scheduled. The work was carried out by a team of <br />experienced professional geologists under a special use permit issued by the Forest <br />Service~ USDA.. The geological fieldwork consisted mainly of fracture mapping to <br />estimate the strength and deformation properties of the rock mass in the foundation of the <br />proposed RCC gravity danL Seismic refraction surveys were completed to detennine the <br />depth to bedrock along the dam axis. <br /> <br />The proposed RCe gravity dam VliU be between 560 and 580 feet high and will have a <br />crest feng1h of approximately 2,060 feet~ It is located approximately 2,100 feet <br />downstream from the east entrance to Union Canyon on Lottis Creek.. A preliminary <br />evaluation of the geological field data suggests that the rock mass in the foundation of the <br />dam will ~ competent to suppart the static and dynamic loadS ofa gravity structure: With <br />a reservoir storage capacity of up to L2 million acre-feet. A high safety factor against <br />sliding and bearing failure is anticipated. <br /> <br />An surface geological information must be verified by test drilling which is scheduled to <br />be completed in 2004 during Phase 2 of the subject investigation.. <br /> <br />S incerely yo~ .- <br /> <br />UEBLACKER ASSOCIATES <br /> <br />Horst Ueblacker, P. E., Principal <br /> <br />ctS;L C:- . <br /> <br /> <br />PLANNING LEVEL - OPiNION OF PROBABLE PROJECT COSTS <br />for Proposed New Storage Facilities (Arkansas and Gunnison Basi <br />and En'argeme.nt of Existing Reservoirs {I (Arkansas Basin) <br />based on Cost Data: published in 2000 and 2001 <br /> <br />Prepared by Horst UebJacker, P. E. <br />UEBLACKER ASSOCIA TES~ Consulting Engineers and Geo!ogists~ la~ <br /> <br />Item No. Project Description Storage Vol. <br /> (AF) <br />1 Proposed New Reservoirs <br />2 Uaion Park Reservoir (Ree Gravity Dam) 1.200~OOO. 00 <br />3 Union Patk Reservoir (Ree Gldvfty Dam) 900.000.00 <br />4 Halfmoon Creek Reservoir 100,OOO~OO <br />5 Tennessee Creek Reservoir 28,000.00 <br />6 Clear Creek Reservoir 102.000.00 <br />7 Box Creek Reservoir 331000~O( <br />8 VVilHams Creek Reservoir 10,OOO.D{ <br />9 Williams Creek Reservoir 30. Qoo. 0( <br />10 Williams Creek Reservoir 51, OOa~O[ <br />11 Chalk Creek Reservoir 15fOOO.O( <br />12 Upper Arkansas Reservoir (Hayden Ranch) 4.9.000,01: <br />J 13 Proposed Reservoir Enlargem:ents <br />14 Pueblo Reservoir Enlargement 25, OOOJ)~ <br />15 Pueblo Reservoir Enlargement 60 tOOO. 01 <br />16 Pueblo ReselYoir Enfarqement 75.000.04 <br />17 TUI"QEJojse Reservoir Enlargement 11.950.01 <br />18 Turquoise Resetvoir Enlargement 19,600.01 <br />19 Lake Meredith Enlaraement 15.000.01 <br />2(} Lake Meredith Enlaroement 25,000.01 <br />21 Lake Meredith Enlarr1!tment 40.000.00 <br />22 Lake Meredith Enlarqement 55.000.OC <br />23 Lake Meredith Etrlamement 75,000.OC <br />