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Firm Qualifications - Continued <br />Other hydraulic and hydrologic studies to support water resources projects <br />include: <br />➢ Computer modeling of an entire river basin to define firm yield and <br />water availability (legally and physically available supplies) for normal <br />and drought conditions; <br />➢ Definition of operating criteria for reservoirs, and optimization of <br />reservoir operations to satisfy municipal, industrial, hydroelectric power <br />generation, agricultural, environmental and other purposes; <br />Conducting a detailed hydrologic investigation often requires accessing and <br />utilizing a large volume of data. Boyle is familiar with and regularly uses <br />most of the major sources of water data for Colorado and the U.S., such as <br />HYDROBASE, GWSI, WATSORE, STORET, OASIS, HYDRODATA, and <br />CLIMATE DATA. Boyle's engineers are familiar with many general <br />purpose data management systems including ACCESS, dBase IV, <br />ARCINFO, MOSS, PC File, and DMS. Boyle was recently involved in the <br />development and use of a GIS database for the Windy Gap Firming Project. <br />Boyle engineers have also used ArcView and its Spatial Analyst extension to <br />create and manipulate shapefiles, grids, and databases. Typical applications <br />of GIS include pipeline routing studies, determining hydrology <br />characteristics, and creating graphics. <br />We also routinely use the entire HEC package of models applicable to <br />reservoir and stream hydraulics. In many cases we developed or obtain <br />versions of these models to enhance both the input and output processes. We <br />have also linked these programs with DAMBRK, GIS, and two - dimensional <br />(finite element and finite difference) flood wave programs to greatly reduce <br />the dam rehabilitation measures that would otherwise have been required. <br />We are currently using these types of approaches on more than 20 on -going <br />dam and flood control projects. <br />Boyle has employed one- and two - dimensional hydraulic models to dam <br />safety projects. On systems that are not well - defined in nature, two - <br />dimensional modeling techniques have been shown to more accurately <br />portray the real -world situation than a simplified one - dimensional model. <br />The use of two - dimensional models often translate into significant savings to <br />the owner. The following is a partial list of one - dimensional hydraulic and <br />hydrologic programs used by Boyle: <br />• All of the HEC series (including HEC -1, HEC -2 and HEC -6); <br />• HEC -RAS with HEC -2 and bridge scour capabilities; <br />• Enhanced version of NWS DAMBRK model, which is a dynamic, <br />unsteady flow, dam breach model; <br />- 3 - f30VLE <br />