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b'~'" -~---_.-_.----...-.._-- -..-.- .. -..-.---.-.---.-..-.. -.......-.. .". O " 1\', .. ~ I;:J-..'r /_ , ',~ (,N.- . .y J!;KcJ'h) ~c., a ~_\. pJ~ Ilev4l~~ baseline scenario. , 2d.3 Modify the model's input ata (in the base model data directories on cando) to reflect the agreed on changes to the odeling of the transmountain diversions in the baseline scenario. It is anticipated that mo 1fications to the statemod program would not be necessary. 2d.4 Prepare a subtask 2d . that summarizes the change methodology, assumptions and res ts. The results of these changes will be summarized through a comparison of the gaged transmountain diversions, Phase II modeled transmountain diversions and the modeled transmountain diversions resulting from this task. These graphs will be of monthly data for the modeled study period of 1975 through 1991. This subtask is not expected to require recalibration of the model given the expected magnitude of the changes made. 2d.~El'lanrseGti&liS:of~cUlnenfiitiOifOjfemnt(j'"to redl:';' chiN suDta:sll. (Let's ,..--- t~l1c abnnt h~h). Deliverables (referencing subtask identifiers): 2dl A memo (5-6 pages) that describes the current (phase II) operation of the transmountain diversions for the baseline scenario for the Colorado River Basin and recommendations for improvement of the operation of these structures. 2d2&2d3 Modified input data sets for the transmountain diversions for the baseline scenarios to reflect the strategy agreed on by CRDSS management. Re-simulation of the baseline scenario would be performed. 2d4&2d5 Documentation of the subtask through a 5-6 page memo and assoicated changes made to the on-line documentation. (Add time and dollars for draft review process by state). Cost Estimate. Task 2dl 8 hours @ $82/hr = Task 2d2 4 hours @ $ 82/hr = Task 2d3 8 hours @ $ 821hr= Task 2d4 8 hours @ $ 821hr= Task 2d5 8 hours @ $ 821hr= Total APproxize Subtask Cost $ 650 $ 330 $ 650 $ 650 $ 650 $2,900 Schedule: Given Mr. Bethel's 20 hour per week time commitment to the CRDSS Project, it is anticipated that the above work would be performed over the course of3 weeks from April 7 through April 25. Subtask LR-2e Enhancements to Colorado River Model to Allow Improved Modeling- ofRIPRAP flow related items Objective. To make selected enhancements to the Phase II Colorado River Model (calculated and baseline scenarios) to facilitate alternative investigations related to the effect on 15 mile reach flows from potential flow related actions of the Endangered Fish Recovery Implementation Program-Recovery Action Plan (RIPRAP). Scope of Work 2e.l Based on review of information provided by the CWCB and the current modeling