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three methods; horizontal directional drilling, traditional tunneling and micro - tunneling. The project was installed using the micro - tunnel method under a 100 -foot deep hill adjacent to Carbon Canyon Dam. The remainder of the pipeline was installed using open trench construction. Portions of the project were located behind the Carbon Canyon Darn, which Is owned and operated by the U.S. Army Corps of Engineers and used for flood control purposes. Dense vegetation existed behind the dam, which consisted primarily of ornamental plants, annual grassland, a small amount of riparian habitat, chaparral, and coastal sage scrub. The pipeline alignment was developed to minimize impacts on the heavily vegetated area and environmentally sensitive areas while still achieving the desired facility objectives, The project Included environmental analysis, geotechnical Investigation, the preparation of a preliminary Design Report consisting of wastewater flow projections from all land tributary to the sewer, hydraulic analysis, alignment study, easement research, utility research, odor control analysis, flow monitoring, final design, and traffic control. Alf MesaWater 013TRICT Client Reference: Mr. Phil Lauri, P.E. District Engineer Mesa Water District 949. 6314200 ahilIT2mesawater ore Mesa Water District - On -Call and Related Services RBF has been serving Mesa Water District in multiple capacities out of our Irvine office. We were recently awarded an on -call services contract for supporting Mesa on various water related projects, In which we have recently provided hydraulic modeling support, and mapping /right -of -way support. In addition to water related services, RBF has been providing GIS services (Steve Hein) and permitting / regulatory (Rich Beck) support to Mesa In various capacities, OC -44 Pipeline Rehabilitation /Replacement Project. As a separate project, RBF also provided a preliminary engineering study on the 8.4 mile OC -44 pipeline for Mesa Water District that focused on two major goals; 1) Evaluate rehabilitation and replacement alternatives for the portion of the pipeline crossing the San Diego Creek and recommend the best means of protecting the pipeline from future failures within the creek; 2) Assess the condition of the entire 8,4 miles of transmission main, and evaluate the potential for Installing a cathodic protection system. As part of this study, RBF also evaluated alternative water supply scenarios, developed summaries of the regulatory permitting and CEQA compliance processes, and is preparing a critical path schedule For final design and construction. Tic port of ^. LONG BEACH Client Reference: Mr. John Chun, P.E. Deputy chief Harbor Engineer Engineering Design Division 562/283 -7854 John.chunCfpolb corn Key Staff serving this client: Kevin Gustorf I Tod Yokoyama Port of Long Beach - On -Call and Related Services Re. Port of Long Beach Sever Master Plan and Capital improvement Program "On behalf of the Port of Long Beach (POLB), i am pleased to submit this fetter of support to the 2011 Awards Committee of the Metropolitan Los Angeles Branch of the American Society of Civil Engineers. On behalf of my staff and RBF Consulting, I fully support this nomination for their combined efforts in preparing POLB's sewer Master Plan and developing a Sanitary Sewer Capital improvement Program for the next twenty years and beyond. Since the early 1990's, POLB's has undergone significant expansion and is on a path to invest $4.4 billion In capital improvement projects in the next ten years. With the completion of this project POLE now has a comprehensive assessment and analysis of the existing system, a look ahead to a future system upon completion of Its current capital improvement investment, and provides recommended Improvements to be implemented over the next 20 years and beyond to raise the level Of Its services to its customers. POLB Is proud of the efforts undertaken by this team to prepare a comprehensive Sewer Master Plan, an overall assessment of the existing sewer system, on update of the GIS Sewer database, the development of a comprehensive hydraulic model, and preparation of a comprehensive Capital Improvement Program." .�;. Nell D. Morrison, P.E., Director of Engineering Design, Port of Long Beach 25C -90