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<br />(!:) <br />(.0 <br />r..... <br /> <br />" -' <br /> <br />Preliminary Assessment of the <br />Salt Tolerant Emergent Plant (STEP) Process: <br />I. Species Selection and Criteria Definition <br /> <br />(:.::> <br />Co.:; <br /> <br />by <br /> <br />L. P. Raymond and V. A. Raymond <br />INTERNATIONAL BIO-RESOURCES, INC. <br />274 Union Boulevard, Suite 220 <br />Lakewood, Colorado 80228 <br /> <br />INTRODUCTION <br /> <br />This is the first of two reports International Bio-Resources, <br />Inc. (IBR) is preparing to evaluate its proprietary Salt <br />Tolerant Emergent Plant (STEP) process for the beneficial use <br />and disposal of Glenwood Springs Saline water. This report has <br />two central objectives: <br /> <br />o <br /> <br />to identify and <br />species for their <br />concentrators. <br /> <br />evaluate salt tolerant emergent plant <br />potential to function as saline water <br /> <br />o to define the range of environmental and performance <br />criteria for emergent plant production so as to guide <br />preliminary engineering efforts as well as the search <br />for sites suitable for process implementation. <br /> <br />The second report provides site, operations, <br />present value considerations important <br />commercial potential of this technology. <br /> <br />management, and net <br />for assessing the <br /> <br />Two additional reports are being prepared by Denver Engineering <br />Corporation (DEC). The first provides preliminary conceptual <br />engineering designs of the process. The second presents <br />preliminary estimates of construction costs. <br /> <br />Collectively, these reports are to provide the information <br />required to judge whether this concept warrants the expenditure <br />of the additional funds IBR needs to perform a comprehensive <br />feasibility study of this process. <br /> <br />Section One of this report presents the conceptual process and <br />describes the physical and chemical settings of the Glenwood <br />Springs region of Colorado. This establishes the magnitude of <br />the challenge this process was conceived to handle, as well as <br />the conditions under which it must operate. Section Two focuses <br />on fundamental botanical considerations, describes the <br />characteristics and performance of salt marsh plants in their <br />natural habitat, and evaluates this performance in the context <br />of the Glenwood Springs region. This focuses on relationships <br />affecting crop yield, transpiration rates, and chemical <br /> <br />1. <br />