Construction QA Welding Representative Projects

The San Vicente Pump Station Projects are a part of San Diego County Water Authorities Emergency Storage project. The Pump Station was built to provide facilities for 3 horizontal centrifugal pumps, including 7000 HP motors, 2 variable frequency drives and transformers. The work being performed consists of the construction of a new pump station, surge control facility and inlet-outlet structures, installation of fabricated steel pipe and fittings, and related systems, gates and valves, and other appurtenances.

On-site Technical Services Inc. is providing shop fabrication inspection services of the mechanical equipment and 5,000 ft of large diameter steel pipe and specialty fittings associated with this project at various locations both domestic and overseas in Japan, Germany, Brazil, China and Canada. Our Field welding inspectors supported the QA welding inspections during the installation of the pipelines and piping inside the pump house.

The Lake Hodges Pipeline and Hydro Electric Pump Station is a part of San Diego County Water Authorities Emergency Storage project. Hydraulic turbines will provide the additional benefit of capturing energy created when water flows from the Olivenhain Reservoir into Lake Hodges. The pump station will generate 40 Megawatt capacity by utilizing 2 each 20 MW (15300 HP) vertical generators. This project will increase the amount of water available within the county for use during emergencies. The work being performed consists of the construction of a new pump station and inlet-outlet structures, installation of 5,800 ft of 121-inch diameter fabricated steel pipe and fittings, and related systems, gates, valves, and other appurtenances.

On-site Technical Services Inc. provided field welding inspection services during the installation of the large diameter steel pipe and fittings associated with this project. Our fabrication inspectors completed inspections on the hydraulic turbines, generators, electrical equipment, control systems and large diameter valves at various locations both domestic and overseas in China, Brazil, and Canada.

The Perris Valley Pipeline is a major water line that will provide substantial water reliability and quality benefits to a significant portion of western Riverside County. The Metropolitan Water District of Southern California, Eastern Municipal Water District and Western Municipal Water District are developing the $80 million project jointly. When completed, the pipeline will enhance the treated water delivery capacity in Eastern and Western's service areas by up to 150 million gallons per day. The Perris Valley Pipeline consists of 6.5 miles of 96-inch pipeline enhancing the delivery capabilities of the Henry J. Mills Water Treatment Plant.

As an owner representative On-Site Technical Services Inc. is providing Field Welding QA inspection services. Our inspectors provided in process welding inspection during the fit up and installation of the 96 inch diameter pipe and fittings.

San Diego Pipeline 6 Northern Reach Project, which involves the construction of over 7 miles of 120" Diameter pipe that will deliver water from the Colorado River to Riverside and San Diego counties. This $100 million project is a critical link in the regional water supply for this region. On-site Technical Services Inc., provided site welding inspection during the installation of the pipeline. Our inspectors also confirmed that the coating and lining repairs were completed in accordance with the job specifications. Prior to installing the pipe, our inspectors completed shop fabrication inspection services of over 7 miles of 120" diameter steel pipe and fittings manufactured at several locations simultaneously throughout the United States. Our inspectors also performed inspection of the engineered equipment associated with this project, which includes the inspection of 42" Check valves, 144" Butterfly valve, various diameter high performance butterfly valves, flow meters and electrical instrumentation, at locations throughout the United States and Japan.

The Perris Valley Pipeline Southern Reach Project is the final phase of the Metropolitan Water District of Southern California, Eastern Municipal Water District and Western Municipal Water District $80 million project. When complete it will deliver up to 150 million gallons of treated water to Eastern MWD and Westerns WR service areas. The pipeline required the installation of over 21, 000 feet of 96-inch steel pipe. On-Site Technical Services provided QA welding inspection during the construction of the pipeline. On-Sites inspector was an integral member of the MWD construction Management team. Coating and lining repairs were also inspected to confirm that they were in compliance with the job specifications.