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<br /> <br />Earth Engineering Consultants, Inc. <br />EEC Project No. 1082030 <br />Turnpike Reservoir -Feasibility Study <br />May 5, 2008 <br />Page 2 <br />Reservoir Feasibility Study - County Line Reservoir" dated November 2000, RMC Job No. <br />19-0885.043.00. <br />EXPLORATION AND TESTING PROCEDURES <br />The boring locations were selected and established in the field with the assistance of <br />representatives from ASCI, and Martin / Martin - Consulting Engineers of Denver, <br />Colorado. Ground surface elevations at each boring location were provided by Martin / <br />Martin, and are recorded within the upper right hand corner of the boring logs included in the <br />Appendix of this report. Photographs of the site at the time of drilling are included with this <br />report. The approximate locations of the borings are indicated on the attached boring <br />location diagram. The locations and ground surface elevations of those borings should be <br />considered accurate only to the degree implied by the methods used to make the field <br />measurements. <br />The test borings were completed using a truck mounted, CME-75 drill rig equipped with a <br />hydraulic head employed in drilling and sampling operations. The boreholes were advanced <br />using 4-1/4-inch nominal inside diameter continuous hollow stem augers. Samples of the <br />subsurface materials encountered were obtained using split barrel and California barrel <br />sampling procedures. In the split barrel and California barrel sampling procedures, standard <br />sampling spoons are advanced into the ground by means of a 140-pound hammer falling a <br />distance of 30 inches. The number of blows required to advance the split barrel and <br />California barrel samplers is recorded and is used to estimate the in-situ relative density of <br />cohesionless soils and, to a lesser degree of accuracy, the consistency of cohesive soils and <br />hardness of weathered bedrock. In the California barrel sampling procedure, relatively <br />undisturbed samples are obtained in removable brass liners. All samples obtained in the field <br />were sealed and returned to the laboratory for further examination, classification, and testing. <br />In conjunction with the field drilling exploration activities, four (4) packer tests were <br />performed at selected locations to evaluate the in-situ permeability characteristics of the <br />underlying bedrock formation. Packer tests were conducted in borings B-2, B-7, B-10, and a <br />supplemental boring B-11. Results are presented in the Appendix of this report.