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equipment locations and spacing and preparation of piping and instrumentation schematics. Process calculations and design criteria will be developed and suppliers of major equipment will be identified and contacted to determine realistic delivery schedules and costs. A geotechnical and structural evaluation will be made of the existing slab design and soil foundation characteristics. Design criteria will be developed for the slab and any special structures needed for the building. Based on this work, a Preliminary Design report will be prepared which will serve as a management plan for preparing the construction documents. In draft form, the Report provides the City staff an opportunity to review the proposed arrangement of hardware and buildings, equipment operating criteria, engineering design criteria and process piping and controls. The Report will include a plan view of each process unit and at least one elevation through the process as well as a Process and Instrumentation Diagram schematic. Other information to be included will be a preliminary list of the drawings needed for the work, and a listing of the technical specification sections. During the City review, we will consult with EBMUD regarding their recommendations and suggestions for other features to be included in the design. In addition, the Report will include discussion on the cost benefits for using an ORP system for main process control and design recommendations for hardware associated with the portable hypochlorite equipment for the RAS and odor control systems. Calculation used for decision is to be included in the report. Task 2 - Mechanical Design The mechanical design will include design, layout and specification of the new chlori- nation equipment and piping. Modifications and connections to existing piping and equipment will be incorporated in this task. Contract drawings, using City format with AutoCAD ver 12, and specifications for all mechanical work will be prepared in this task including outside piping. To the extent the Standard Specifications for Public Works Construction are applicable to this work, they will be incorporated into our project manual. Customized specifications for process piping, equipment and instrumentation are anticipated. Task 3 - Structural Design The structural design work for foundations structures, pipe chases and supports contact tank modifications and miscellaneous or special details will be provided in this task. Structural elements will be designed in accordance with uniform Building Code standards. Structural contract drawings, using City format with AutoCAD ver 12, and specifications for the project will be prepared in this task. Exhibit A Page 2 of 4 9/26/88 Rev. 1/10/90 Rev.