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— Woik Plan 2 -66 included Although identified as a separate task, structural improvements will depend to a large extent on decisions made regarding mechanical and electrical improvements; there will have to be significant interaction among the engineers working on the various improvements and City engineering, operations, and maintenance personnel. Three four -hour working meetings are anticipated with the participation of City and consultant personnel; one such meeting will be charged to each of the structural, mechanical, and electrical improvements tasks. The meetings will be expected to yield altematives (preferable two, no more than three) for each instance of structure or equipment repair /replacement. The consulting team will evaluate these alternatives in terms of effectiveness, reliability, useful life, and cost. 4.3 Mechanical Improvements: Mechanical improvements will include five new booster pumps and electric motors, two of them with variable frequency drives. Mechanical components other than the pumps and drivers that could require repair /replacement include shutoff, check, and control valves, suction and discharge piping, and surge protection.. Alternatives will be identified during the working meetings to be held with City engineering, operations, and maintenance personnel. The consulting team will evaluate these alternatives in terms of effectiveness, reliability, useful life, and cost. 4.4 ElectricallControls Improvements: Rapid technological advances in circuitry, controls, alarms, and instrumentation make it practically mandatory that the whole electricaUcontrol system at the pump station be upgraded. Our electrical engineers will discuss with City representatives the options available and reach a consensus on parameters to be monitored, data to be transmitted to a remote control station, and wiring to be prepared for the connection to a SCADA system. 9 Electrical and Instrumentation Design Requirements: We will develop the electrical design basis for the project and review with the City in design progress meetings. Design requirements to be defined include: • Electrical loads for the upgraded facility, • Requirements for indoor and outdoor lighting (fixture types and lighting levels), • Security requirements, • SCADA interface requirements, • Facility grounding requirements, and o Equipment tagging and numbering approach. Utility Interface Coordination. We anticipate discussions with the SCE representatives to coordinate requirements for electrical service. Replacement of existing service transformers is assumed. Electrical space requirements will be defined in preliminary design to facilitate setting the pump station footprint. Piping and Instrumentation Diagrams (P &IDs). We propose preliminary design to include P &IDs completed to approximately the 60% level to set the foundation for detail design. A preliminary list of electrical and instrumentation specifications will be prepared for preliminary design, and the approach to completing the final specifications will be defined. Company Confidential • Trade Secret and Proprietary Information ofldelca(f & Eddy. Inc.