WSP07978 - Laserfiche WebLink

Home Browse Search

. , ! :. ,. . 1713 Project planning model to perform the previous review, the District requested the model be expanded to include the additional data and make identical comparisons as the previous review. Kansas asked that in addition, the model should be expanded to not only evaluate the impacts to John Martin Reservoir, but also on useable Stateline flows. At the November 21, 1995 scoping meeting, it was agreed, after considerable discussion, that the review should cover the 10 year period Colorado Water Years 1985 through 1994 since the previous review covered the period 1979 through 1984. Reclamation declined Kansas request to evaluate Project operation effects on useable Stateline flows as the Project had no control of flows at the State line. Reclamation did not commit to an identical simulated model study compared to the pre-Project planning model as was done for the previous review. Reclamation selected this method for the previous review because there were only five years of Project operations data with nearly full irrigation for only two of those five years. The Project has been operated continuously with full irrigation for the review period 1985 through 1994 and Project operations cyclic patterns of storage, releases and return flows have now developed and stabilized. At the scoping meeting Reclamation proposed that a Project area depletion analysis compared to historic depletions of the Project area may be more appropriate based on the assumption that if the Project area depletions do not change, then there were no downstream effects of Project operations. There was no agreement at the meeting that Reclamation's proposed depletion analysis was appropriate for the review. Reclamation proposed to review Project operations data and Project development documents to determine if a depletion analysis was sufficient to meet the requirements of the reviews. The Decree for changing the place of storage under the Model right from Model Reservoir 10