Fabrication QA Pipelines and Pump Stations Representative Projects

The Twin Oaks Valley Water Treatment Pant DBO is part of San Diego County Water Authorities $3.2 Billion dollar Capitol Improvement Projects currently underway. This project will produce up to 100 MGD of treated water per day, which is enough to meet the needs of the approximately 220,000 residents each year. The plant will use submerged membrane technology, separating water molecules from contaminates producing high quality treated water. The project is a design build and operate DBO project managed by CH2MHILL who will operate the facility for 15 years. The work being performed consists of the construction of new buildings and water treatment 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 large diameter steel pipe and fittings associated with this project at various locations both domestic and worldwide.

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.

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. is providing shop fabrication inspection services of the mechanical equipment and large diameter steel pipe and fittings associated with this project at various locations both domestic and overseas in China, Brazil, and Canada.

San Diego County Water Authority's Mission Trails Pipeline Tunnel Project maintains critical water pipelines beneath portions of Mission Trails Regional Park in the city of San Diego. The Water Authority is upgrading its untreated water system in the northwest area of Mission Trails to deliver more water to treatment plants that serve the central and south sections of San Diego County. The project will help ensure water reliability in the region through the year 2030. The major elements of the Mission Trails Project consist of Construction of a 25,000 ft 94 inch diameter pipeline tunnel and associated pipeline interconnections, and Construction of an underground flow regulatory structure.

On-site Technical Services Inc. is providing shop fabrication inspection services of the mechanical equipment and 25,000 ft of large diameter steel pipe and specialty fittings associated with this project at various locations both domestic and International.

The San Vicente Pipeline Projects are a part of San Diego County Water Authorities Emergency Storage project. The Emergency Storage Project will protect the San Diego region from potential disruptions to the water delivery system by increasing the amount of water stored locally. The project is creating new emergency water storage and pipeline connections, enabling water to continue to flow throughout the region even if the imported water supply is disrupted. The Emergency Storage Project is expected to meet the county's emergency water needs through 2030.

The 11-mile San Vicente Pipeline is a 102 inch-diameter pipeline connecting San Vicente Reservoir in Lakeside, to the Water Authority's Second Aqueduct west of Interstate 15. The pipeline will be built in a tunnel at a depth ranging from 50 to 550 feet underground and will not pass directly under any homes. To provide water during emergencies, the San Vicente Pipeline will function together with other Water Authority facilities and connecting pipelines near the reservoir to allow water to be distributed to agencies in the southern half of the county.

On-site Technical Services Inc. is providing shop fabrication inspection services of the mechanical equipment and 57,000 ft of large diameter steel pipe and specialty fittings associated with this project.

San Diego County Water Authority's Pipeline Relining program takes a proactive approach to pipeline maintenance. This 30-year program focuses on pre-stressed concrete cylinder pipelines showing signs of deterioration and joint damage during internal pipeline inspections. These $30 million dollar plus projects consists of the manufacture of 69 to 93 inch diameter collapsible welded steel liner placed inside pre-stressed concrete cylinder pipe.

On-site Technical Services Inc. has provided fabrication inspection and project site support during the manufacture and installation of the steel liners for the following projects:

• Pipeline4 Del Dios to Black Mountain Relining Project (27,545 ft) 93-in dia.
• Pipeline 4 Relining Paint Mountain to Del Dios Highway (12,000 ft) 96-in dia.
• Pipeline 3 Relining SR 52 to Lake Murray Project (17,000 ft) 60 and 66-in dia.
• Pipeline 3, 4, 4A Reline (2100 ft) 67-in dia.

The Robert B. Diemer Water Treatment Plant is one of Metropolitan Water District of Southern California major construction projects located in Yorba Linda California. This $153 M project includes site work in preparation for the ozone treatment facilities; large diameter pipe and specialty fittings, Equipment for Ozone related chemical storage and feed facilities and an ozone generation building, which will help ensure compliance with stringent drinking water standards. The plant is capable of treating up to 520 million gallons of drinking water a day, enough to meet the needs of 3 million people. The plant features a hydroelectric generator capable of generating up to 5.1 megawatts of power, which is sufficient to light 4,600 homes. As an owner representative On-site Technical Services Inc. is providing shop fabrication inspection services of the mechanical and electrical equipment and large diameter steel pipe and fittings associated with this project.

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 shop fabrication inspection services of the large diameter steel pipe and fittings associated with this project.

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 inspection and 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 Japan and the United States.

The San Jacinto RWRF Conversion to Tertiary Project will bring the San Jacinto RWRF up to tertiary level for the installation of tertiary filters. This $9.5 million project consists of 62-inch diameter specialty pipe and fittings.

The Perris Valley RWRF Expansion Project is part of construction to increase the treatment capacity from 11 MGD to 22 MGD. This $101 million project consists of manufacture of 50-inch diameter specialty pipe and fittings. These projects are part of the districts Water and Wastewater Facility Master Plan to reflect the anticipated growth projections up to the year 2025 and define the facilities that will be required to meet the needs of this growth. As an owner representative On-site Technical Services Inc. is providing shop fabrication inspection services of the mechanical and electrical equipment and large diameter steel pipe and fittings associated with this project.

Calleguas Municipal Water District has embarked on an ambitious capital improvement program to "drought-proof" its service area to minimize potentially debilitating effects associated with seismic activity. Numerous projects are currently under development to reduce the region's demand for imported water. On-site Technical Services Inc. has a direct contract to provide professional services performing fabrication inspection and project site inspection support for this program.

In addition On-site Technical Services Inc. is often called upon to offer technical assistance and aid in the development of inspection procedures. One such project required our assistance in the development of repair procedures and offer project site support during a catastrophic failure of a steel tunnel liner, which ruptured prematurely. On-site Technical Services Inc. provides inspection of the large diameter steel pipe (PVC/HDPE), fittings, valves, steel reservoirs and coating inspection at locations throughout the United States.

City of Albuquerque Water Treatment Plant Project consists of 15,000 feet of 72 inch to 120" inch diameter steel pipe and fabricated fittings being manufactured at 3 separate manufacturing facilities throughout the United States.

On-site Technical Services Inc. provides the Quality Assurance inspection of the large diameter pipe, fittings and coating applications at locations throughout the United States.

Lancaster Water Reclamation Plant Stage 5 Recycled Water Transmission Pipeline consists of the manufacture of over 45,000 ft of 36" diameter steel pipe and fabricated fittings. The Lancaster WRP provides primary and secondary treatment (aerated oxidation ponds) for 16 million gallons of wastewater per day and serves a population of approximately 160,000 people. On-site Technical Services Inc. provided inspection of the large diameter pipe, fittings and coating inspection at locations throughout the United States.