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CITY OF PLEASANTON <br /> TASSAJARA KESERVOIR AND TRANSMISSION MAIN <br /> <br /> JOHN CAROLLO ENGINEERS <br /> <br /> AUGUST 3. 1989 <br /> <br /> SUPPLEMENTAL SCOPE OF WORK <br /> <br />PHASE LA - WATER MA~TER PLANT UPDATE <br /> <br />Consultant will update the 1985 Pleasanton Water Master Plan model and report. The work <br />wfil utilize as much as possible of the existing model, Consultant's Phase I work to date and <br />Clty's own work with the model. <br /> <br />Task 1A. 1 Update year 2010 Demands <br /> <br />1A. 1.1 Make General Plan overlay for existing computer model node map and, <br /> plantmeter areas. <br /> <br />1A. 1.2 Review unit demand data with City staff, assign unit demands to land use areas <br /> and distribute demands to nod~ map. <br /> <br />1A. 1.3 Input revised node demands and run model; provide printouts for staff to review <br /> demand distribution. Summarize Task 1A. 1 in Technical Memo. <br /> <br />Task 1A. 2 Develop year 2010 System <br /> <br />1A. 2.1 Using City data, develop diurnal curve, review reservoir operational storage <br /> criterion and review with staff. <br /> <br />1A.2.2 Make trial model runs with tentative improvements to obtain satisfactory <br /> operational conditions for year 2010 maximum day demands. Prepare memo <br /> documenting set up of each trial, and provide City with disk copy and printout <br /> of each. <br /> <br />1A. 2.3 Make fire flow runs, confirm proposed system meets fire flow criteria; adjust <br /> system as necessary, prepare memo; provide disk copy and printout of runs. <br /> <br />1A.2.4 Perform extended period simulations to illustrate performance of reservoirs. <br /> Prepare memo documenting procedure. <br /> <br />Task. 1,~3 Prepare update Report <br />1A,3. I Prepare draft, submit for staff review. <br />1A.3.2 Prepare final report incorporating City comments. <br /> <br />Conlract - 3230A00-8-7-89 Scope of Work <br /> <br /> <br />