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Constraints are restrictions that limit the plannin2. process. Constraints, like objectives, are unique to each planning study, Some generaJ types of constraints that need to be considered are resource constraints and legal and'policy constraints. Legal and policy constraints are those defined by law, Corps policyand guidance. Plans should be formulated to meet t~e study objectives and to avoid violating the constraints. Thus, a clear definition of objectives and constraints is essential to the successofthe planning process. The Sponsor desires any release of. water for environmental restoration be in accordance with the operatingpririciples for instream flow as agreed upOn by the Downstream Cooperative On:lUp participating in the-Chatfield Reservoir Storage Reallocation Feasibility Study. .. . . '; '.. .. . . '. . - . . Deveioping specific. flexible. meaSurable~ realistic. attainable. and acceptable objectives and cbristraints is critical to the success of the entire planningprocess.Thd;tudyTeamwill.' . accomplish this'step byfollcwing the guidance in Chapter Six ofthe Corps 1996 Planning Manua[.(lWR Report 96-R-21), and Page 151 of Appendix EinER 1105-2-100. ... . . . . ... . .. The end product of this 'step will hea draft. written. report qLi~litY. summary a~drest.lts of this planning step for review and comment by tile project stakeholders~ It will be due 4 weeks after . the special meetin~with the Federal and State agencies, the non-federal sponsors, and other groups participating in the study. .. . Step 2 - Inventory' and Forecast . . . . For this step, the Study Team will develop an inventory and forecast of resources (physical, . natural, demographic, economic, social, 'cultural, etc.) relevant to the in-stream flow problems and . opportunities under consideration in the pIan~ing area. This information wHl be. used to further . define and characterize the problems and opportunities, and it will also be used to succinctly describe the environmc:mt of the areas to be affected by alternative environmental restoration plans. . .. . A quantitative and qualitative description ofthese resources willbe made. for both current and . future conditions, and will be used to define existing and future without-project conditions. Existing conditions are those at the tiinethe study is conducted. The forecast of the future without-proiect condition reflects the conditions expected during a 50-year period of analysis. without reallocated storage in Chatfield: reservoir of any kind. The future without-Droiect condition provides the. basis from which alternative blans are formulated and impacts'are . assessed.. Since imp~ct assessment is the basis for plan evalllation, comparison, and selection, a clear definition and a full docume:ltationoftJlfi without-project condition are essential. .. . , . . -'.. . . ~~::.....:;-..... . . . .. . I . . . . . '.. . Gathering information abouthistoricand existing resourCes requires an inventory.. Gathering, infonnation about potential future conditions requires forecasts, which should be made for selected years over the period of analysis' to. indic~te how changes in environmental conditions are iikely to impact problems and opportunities. Forecasting future conditions in an ecosystem may . be subiective and can be very difficult. but is essential in order to formulate restoration projects.. It should be dorie. in an iterative manner. seeking input from State and Federal resource agencies and the environmental community. in order to help build consensus about future without project . COflditions and what outputS the restoration project will produce. A workgroup of stakeholders will be developed to aSsist in forecasting future conditions and other aspects ofthis planning step. 2