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<br />I <br />I EXHIBIT A <br />I SCOPE ~F SE~VICES _ <br /> <br />WORK PLAN <br /> <br />In preparation for this proposal, Tetra Tech, Inc. has reviewed the project description and scope of <br />work contained in your Request for Proposal (RFP), reviewed existing construction plans, visited the <br />project site and discussed the project with City staff. Based on this information and our experience <br />with similar proj ects, we propose the following scope of work. <br /> <br />TASK A - Meetings and Presentations <br /> <br />1. Project kick-off meeting to review scope, schedule, budget and work plan. <br /> <br />2. Preliminary design meeting to discuss hydraulic capacity of the station. <br /> <br />3. Preliminary design meeting to discuss wet well sizing, dry pit layout, and pump selection. <br /> <br />4. Preliminary design meeting to discuss lift station siting and gravity/force main sewer main <br />alignments. <br /> <br />5. Design meeting to discuss electrical and control system design. <br /> <br />6. Final design meetings at 50%, 90% and 100% completion stages to review City's comments. <br /> <br />TASK B - Research and Data Collection <br /> <br />1. Tetra Tech will research and locate all existing utilities and improvements within the project <br />area. We will contact Underground Services Alert (USA) for a computer printout of all utilities <br />registered within the project limits. We will send andlor deliver preliminary notice to each <br />utility advising them of the project and requesting utility information. We will obtain the <br />following data from the City: survey records, design criteria, street, water, sewer, and storm <br />drain plans. Based on the information shown on these plans, we will prepare base maps for the <br />project. Tetra Tech will request the City perform an Underground Services Alert (USA) <br />notification requesting utility markings at several different locations of the pipe alignment. We <br />will verify the field markings to confirm the location of utilities shown on the latest construction <br />drawings. <br /> <br />2. Tetra Tech will perform sewer flow monitoring at the top of the force main where it goes to <br />gravity to establish accurate flow readings. The flow monitoring shall occur over a 7-day period <br />of time with IS-minute sampling periods showing depth, flow and velocity. Two copies of the <br />report prepared by MGD Teclmologies, Inc. will be provided to the City. The report will <br />include one 3.5-inch diskette or CD/DVD containing the files representing the data recorded. <br /> <br />In addition, Tetra Tech will perform the following services to confirm the hydraulic capacity of <br />the station: <br /> <br />a. Confirm with flow data obtained from existing meters located on the CSDOC trunk main. <br />b. Using City's sectional maps and typical flow generation rates, estimate the dry weather <br />average and peale flow rates. <br />c. Use CSDOC's 1999 Strategic Plan to estimate the peak wet weather flow to the station. <br /> <br />3. Tetra Tech will perform a feasibility study of the new station. The study will address, but not be <br />limited to, the following: <br /> <br />CITY OF SANTA ANA <br />San Lorenzo Sew~r Lift Station. <br /> <br />TETRA TECH, INC. <br />6 <br /> <br />EXHIBIT A 'j <br />