Exhibits 1-6 for Case 02CW038 - Laserfiche WebLink

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HELTON & WILLIAMSEN, P.C. James E. Slattery EDUCATION: Colorado State University - B. S. Civil Engineering, 1984 Colorado State University - M.S. in Civil Engineering - Ground Water Modeling, 1986 SOCIETIES: American Society of Civil Engineers, Member American Water Resource Association, Member REGISTRATION: Registered Professional Engineer in Colorado EXPERIENCE: 1995- Helton & Williamsen, P.C., Englewood, Colorado Vice President — Responsible for projects involving water supply, water requirements, water rights, reservoir operation, and basin -wide planning. Provides expertise in preparing large computer databases and in developing computer models to solve water resource problems. Performs consumptive use studies to determine water use patterns for both surface and ground water supplies. Representative assignments include the development of a spreadsheet model of the Bear Creek basin, engineering analyses and expert testimony in the second phase of Kansas v. Colorado in the U.S. Supreme Court, development of a daily basin planning model for the Clear Creek basin, and development of a monthly spreadsheet model of the Upper Gunnison basin. Also performed a needs and storage assessment for the Upper Gunnison River Water Conservancy District. 1986 -95 Boyle Engineering Corporation, Lakewood, CO. (1992 -95) Project Manager. Managed a wide range of water resource and computer modeling projects, including the development of a comprehensive computer model representing the operation of Denver's extensive water supply system. This model simultaneously represents the operation of Denver's facilities in both the South Platte and the Colorado River basins using a daily time step and a 45 -year study period. Another model was developed to evaluate the monthly operation of the water supply system for the City of San Diego during a 103 -year planning period. Served as technical reviewer for numerous other computer modeling projects and water resource studies including ground water models in North Carolina, Florida, Colorado, and California. Provided engineering to support the transfer of major conditional storage rights in the Colorado and Gunnison River basins. Conducted a gain -loss study for the Greeley- Loveland Canal System in northern Colorado. Analyzed and reviewed numerous ground water pumping tests throughout the United States for unconfined, confined, and leaky- confined aquifers.