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O TETRATECH Adrian Lee, PE Design Engineer Hawthorne Boulevard Transmission Hydraulic Analysis, City of Torrance, CA. 2016. Design Engineer to assess impacts of various options to connect a 12-inch 4,300 foot long transmission main. Computer modeling utilized H2O Map and evaluation included water age, fire flow, pressure, and other criteria. Recommendation was for a very simple option which resulted in the lowest construction cost. Inglewood Water Master Plan 2014, City of Inglewood, CA. 2015. Design Engineer/Hydraulic Modeler for the modeling and analysis of City's potable water system. Developed a calibrated model of the City's water system in InfoWater, utilizing the City's GIS data. Assessed the system based on criteria for fire flow, pressure, velocity, and water age. Also assessed the City's operational storage and fire storage requirements. Provided recommendations for optimizing operations, and developed a capital improvements program. TDS Analysis, City of Torrance, Torrance, CA. 2012. Design Engineer to assess impacts of supplying up to 5,000 gpm from North Torrance Well Field. This new source required blending due to high Total Dissolved Solids and Manganese. Developed H2ONET TDS contour map under several scenarios to identify distribution system blending of TDS and Manganese. Identified impacts of various improvements to dispersion of TDS. Beaudry Terrace/Glorietta Park Pressure Surge Analysis, City of Glendale, Glendale, CA. 2015. A report to analyze occurrences of surge and main breaks in the Beaudry Terrace area of the 1666 Zone in the City of Glendale's water system. Updated the City's H2ONET model and provided fire flow evaluations of the Beaudry Terrace area. Also analyzed possible pipeline connections to improve fire flow in the Verdugo 1666 Zone. Condition Assessment of CMP Storm Drains, City of San Diego, CA. 2012. Design Engineer for a large storm drain assessment project for the City of San Diego, for which over 11.5 miles of CMP storm drain from 8-inch to 120-inch was inspected and assessed. Video inspection of the City's CMP storm drains was performed by a subcontractor and the video footage with reports was delivered to Tetra Tech. Each pipe was individually assessed as to condition, specific types and severity of defects discovered, and recommendations for repair were made based on the engineer's analysis. The project was divided into five phases with each phase providing a summary of defects as well as recommendation for rehabilitation or replacement. The report will be used to prioritize maintenance and repair of the entire storm drain conveyance system. Suburban Water Systems, Plant 224 Facility Improvements, Whittier, CA. Ongoing. Design Engineer for the design and construction assistance for the plant improvements. A conceptual plan was developed to construct a 13,000 gpm pump station and as much potable water storage as practical at Suburban Water System's 224 Plant. The concept required close coordination with the City of Whittier in order to obtain DRA, CUP, and Building Department permits. A detailed report was developed and presented to the Public Utility Commission in order to justify the project and obtain funding. Two conventionally reinforced partially buried reservoirs store 2.4 MG and 4.7 MG of potable water. In order to meet the City of W hittier's development requirements, an Art Deco architectural style was adopted which included a 30-foot high fagade in the front of the site and architectural pilasters and cornices on the exposed reservoir and pump station walls. The fagade includes a 5.5-foot diameter clock and bronzed letters identifying the owner. The architectural theme is compatible with a historical pump station building at an adjacent site. The site work includes a bioswale and retention basin to handle storm water flows. A.C. pavement is limited and gravel/landscaping maximized in order to minimize stone water run-off, maximize aquifer recharge, and enhance the storm water quality run-off. Construction was phased into three parts to match available funding. The first phase included much of the site earthwork and perimeter fencing and Tetra Tech provided the final design, special inspection, and construction assistance. The second phase included piping and the pump station. Tetra Tech provided HVAC, structural, and architectural design while Suburban led the phase and provided the remaining design. Tetra Tech also provided special inspection and construction support services. The third phase included both reservoirs, the architectural fagade, and final site work. Tetra Tech led this effort while Suburban provided electrical and controls design. Tetra Tech also provided comprehensive construction management services. Page 2