Agmt12 West Yost Associates - Laserfiche WebLink

Browse Search

' this task, the model will be set up and used for Extended Period Simulation (EPS) analysis to verify the operation of the system in the Glenwood and Edgewood PS service area. Consultant shall perform the following work: . Update the hydraulic model to pertorm EPS analysis for the Glenwood and Edgewood PS service area. Model updates will consist of adding pump control settings at Hillside pump stations, based on current operational set points used by the City. . Pertorm 24- to 48-hour EPS analysis for an existing maximum day demand scenario to confirm operation of the California Tank when re-filled from the Lakeview Pump Station. Consultant shall evaluate tank re-fill under normal maximum day operating conditions (no fire flows) peak conditions and establish the need for use of regulators from the High Line. • Pertorm 24- to 48-hour EPS analysis for an existing maximum day demand scenario to confirm operation of the California Tank when re-filled from the High Line. • Pertorm water age evaluations for baseline conditions (current operations without the tank) and the two altemative configurations under average day demand conditions to evaluate differences in Califomia, Easter Bowl and Easter Cross tanks and service area water age. Consultant shall ensure that model results are correlated to chloramine residual decay estimates that were developed from field data in the Water System Master Plan. e Based on modeling results, develop a preliminary recommendation for the proposed tank configuration. . Develop an operational description for the tank and identify operational considerations for the tank and pump station and their integration into operation of Hillside Area facilities. Task 3— Prepare Technical Memorandum Documenting Results of the Analysis An 8 to 12 page technical memorandum (TM) will be prepared documenting the results of the hydraulic evaluation and providing an operational description for the tank and pump station. Consultant shall perform the following work: • Prepare draft TM and submit one electronic copy to the City for City's review and comment. . Conduct telephone review meeting to review City comments. ATTY/AGR/2012.024IDESIGN PROFESSIONAL AGREEMEM WEST YOST ASSOCIATES REV:03-07-12 VR Page 72 of 16