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This project will rehabilitate and reconstruct the entire length of the Orange Western Sub -trunk, Los Alamitos Sub -trunk, Westside Relief Interceptor and Seal Beach Boulevard Interceptor. The sewer lines are located in the western most portion of the Orange County Sanitation District (OCSD) service area including the Cities of Anaheim, Cypress, Los Alamitos, Seal Beach and La Palma. The project is approximately 16 miles and includes 217 manholes. The project goal is to extend the service life of the sewer system by an additional 50 years. T2 is providing SUE services in accordance with ASCE 38-02 to support the design of the sewer rehabilitation. Services include records research and creation of the utility base map (Quality Level D), geophysical utility investigation, survey (Quality Levels C and B) and test holes (Quality Level A). Included in the utility investigation is approximately 30,000 LF of designating and up to 1,000 test holes. Information obtained during the field investigations and surveys will be used to update the Utility Map and qualify the depicted alignments. Deliverables include Utility Plan Sets, AutoCAD Civil 3D files and Test Hole Data Reports. This project increases the size of the upper reaches of the existing Newhope-Placentia Trunk Sewer to provide additional capacity for future flows projected with new development that allow for the abandonment of the Yorba Linda Pumping Station. This includes the abandonment of the wastewater disposal company sewer originally constructed in the early 1900s and is now owned by the OCSD. The project includes 34,800 LF of pipe, 18" to 36" VCP and 49" to 42" RCP located within State College Boulevard from the Cal State Fullerton campus continuing to Angel Stadium. T2 staff provided full SUE services to support design of the Newhope- Placentia Trunk Sewer Replacement including utility records research, utility mapping and potholing services (ASCE 38-02 Quality Levels D, C, B and A). Crews designated and mapped all utilities in approximately 7 miles of State College Boulevard (Anaheim and Fullerton) and completed over 400 test holes. Final deliverables included Utility Base Maps identifying subsurface utility alignments, ASCE 38 Quality Levels of the alignments, Test Hole Data Sheets and Photo Logs. T2 staff provided SUE (potholing) services (ASCE 38-02 Quality Levels B and A) to map the horizontal and vertical position of underground utilities to support design of water, sewer and reclaimed water design projects. Utilities located include petroleum, data transmission, telephone, gas, electric, water and sewer pipelines. T2's team completed over 600 (Quality Level A) test holes. 1. STATE LIFICATIONS 111