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ON -CALL ENGINEERING SERVICES <br />WAtUr R9S0QrftS-0,X0 A <br />pumping redevelopment and pumping tests on A part-time basis; preparotion-of the <br />r000mmended new pumping rate and depth setting for the now pump; observe the final well <br />video survey; and pro0arer a summary.of well rehabilitation Operations report, <br />TAO 5. Basis of Design - Tetra Tech will prepare a, 84pis 0 Design Report summarizing ft, <br />findings of the well assessment, necessary Well modifications, the pipeline design requirements, <br />and the p1polinealIgnment selection. The Basis of Design Report will Include the following <br />Issues; <br />• Overall. evaluation of the existing wall based on current operation and City standards, <br />• Recommended well rehabilitation. <br />Recommended Well modifications required to purnp water directly Into d[StributionsyMem <br />I nstead Of into ,adjacent reservoir., size of pump/motor:pump to waste; RIC. <br />Evaluation of chlorination facilities and any recommended modifications, <br />Evaluation of site: layoult� access issues, piping Modifloationa, �eto,, <br />Evaluation.& existing electrical taollitles.and recommended upgrades, <br />Evaluation of existing communications End controls, Recommend upgrades. <br />Identify any hydraulic l9sussfor ths.change In well operation. <br />Update. the weg Operational Functional` Specifloallon for the well,(pn Optla I Tbalk), <br />As <br />4 -Summarize. the alignment analysis and the recommended Moment selootion, <br />P DetermInepipalinomat6rial: Mfor water main (unlosatostrainedjoints arotequireo and <br />DIP Is recommended); arid PVC (SOR-35) for the sewer main (unless depth Is greateuthah <br />10 to 12 feet andoxtra-strorIgth VOP to repommefided). <br />o Summarize the preliminary Staging for construction and traffic management.plan. <br />* Identify all permits and time frames for processing said permits.. <br />* Prepare prellmimey estimate of probable construction costs. <br />Tetra Tech will prepare preliminary drawings (30% milestone) for both the p1pellIvS and well <br />rehabilitation as part of the Basle of Design Report. <br />Task 6, CEOA Doeumentotion � Tetra Tech will prepare documentation required to fulfill the <br />California �nvlronmenlal Quality Act (CEQA) requirements. We have assumed an Initial Study <br />(1$)/Proposed Mitigated Negative beclaration (MND) will be required as was in the RFP for both <br />Well No, 32 and W ell - No. 90 Rehabilitation Projects, flowever, on similar past projects where <br />the rehabilitation Of the well was minor and no building modifications were required, a Notice of <br />Exception was only required asthe project was only replacing an existing facility with no <br />appreciable upsize In capacity. The following Is 6 brief summary of the anticipated scope of <br />work for the IS/MND: <br />• Technical studies for air quality/breenhouso gas and noise are included, as well as <br />biological resources letter report. <br />• Perform project Initiation and organization. <br />Prepare proj , sot description, <br />Prepare and submit administrative Draft I$/MND using the GEQA checklist. <br />Prepare revisions, produce and circulate Draft I8/MND. <br />Prepare draft responses to public comments, and Compile and submit final IS/MND, <br />Task 7. 60% Construction Document (PS&E) Submitted - Tetra Tech will prepare 60% <br />design pJans, specifications and estimate of probable construction costs (PS&E's) In <br />accordance with the approved criteria as outlined In the Final Basis of Design, Two (2) hard <br />copies of full size plan sets, four (4) hard copies of half-size plan sets and one electronic pdf <br />C <br />C <br />C <br />0 <br />G <br />0 <br />U. <br />0 <br />0 <br />J: <br />".3 <br />'EJ <br />011yofftnIsAno .14- TETRA TECH <br />25E-1 79 <br />