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" Metropolitan Water Supply Investigation Proposal Hydrosphere, Inc, Septmber 17, 1993 Page 58 memorandum will include documentation of the planning criteria used as a basis for the analyses, Cost The initially estimated budget for this task is $35,000, Environmental Impact Assessments Purpose The purpose of this task is to identify and investigate at a preliminary level the environmental impacts related to targeted water supply opportunities identified and evaluated in the MWSI Project. It is of particular importance that this review of environmental concerns identify potential "fatal flaws" and important issues that must be addressed in the context of federal, state and local permitting processes. Methodology and Evaluation Techniques This task will begin after Tasks II and 12 are underway and will focus on the most promising alternatives identified in terms of yield. The general approach will involve the utilization of a check list of resource categories where possible environmental impacts could occur. This check list would include but not be limited to the following: Soils Physiography, Topography, and Geology Wetlands and Riparian Communities Vegetation Wildlife Hydrology Channel Stabil ity Water Qual ity Aquatic Life Threatened and Endangered Species Public Lands Cultural Resources Transportation Visual Recreation Socioeconomic Data describing existing environmental conditions will be gathered and synthesized to provide an overview of baseline conditions'against which impacts can be measured. Information regarding yield, operational hydrology and facilities requirements for targeted water supply opponunities will be evaluated with emphasis upon issues and concerns that are likely to be of significant concern to affected interests or critical in the context of environmental permitting requirements. Obtaining input from TSC members that are intimately familiar the subject water supply systems will be an important part of this task.