Multi-Purpose Pipeline Project for Contra Costa Water District

CCWD Overview
The Contra Costa Water District (CCWD) serves a population of about 450,000 people in north, central and east Contra Costa County. Formed in 1936 to provide water for irrigation and industry, CCWD is now one of the largest urban water districts in California and a leader in drinking-water treatment technology and source water protection

About 250,000 people receive treated water directly from CCWD, and the other 200,000 receive water the Water District delivers to six local agencies. CCWD draws its water from the Sacramento-San Joaquin Delta under a contract with the federal Central Valley Project (CVP), and as such is particularly concerned about Delta water quality and the Delta environment. CCWD is the CVP's largest urban contractor. In 1998, the water district completed construction of the locally-financed $450 million Los Vaqueros Project, including a 100,000 acre-foot reservoir, designed to provide improved water quality and energy supply reliability for CCWD customers as well as net environmental benefits.

Multi-Purpose Pipeline (MPP) Project Summary
The pipeline is called multipurpose because it can serve treated water to both the treated water service area and Contra Costa Canal in the event of a canal outage/emergency. In the event of a regional disaster, such as a large earthquake, the pipeline is also designed to connect up to one of the district's raw water sources to provide water for fire fighting. The MPP's primary purpose is to deliver water west from the Randall-Bold Water Treatment Plant in Oakley to the District's existing treated water distribution system in north Concord.

By supplying treated water to Central County, this pipeline will free up capacity in the Contra Costa Canal to meet the needs of Antioch, Pittsburg, Bay Point, and Martinez into the year 2020. The project also includes several features that will bolster the efficiency of the canal. In the event of an emergency, the new pipeline can serve as a backup to the canal and treated water from the Bollman Plant in Concord could be transported to residents in East County. The District awarded construction contracts for the $115-million project on April 18, 2001. C.W. Roen Construction built the Treated Water Pump Station project and Steve P. Rados, Inc. installed the pipeline and raw water system improvements.

Ameron International's Water Transmission Group received an order from Steve P. Rados, Inc. for supplying the pipeline for the MPP Project and specifically the entire 42-inch diameter pipe. Ameron's Tracy, CA plant manufactured and delivered over 110,000 linear feet of Cement Mortar Lined and Mortar Coated Steel Pipe to the Standards of AWWA C200 and C205 as specified by Montgomery Watson Harza (MWH), the engineering consultant. The 21-mile treated water pipeline construction began on Dec. 19, 2001 and the last piece was installed on May 29, 2003. Soon afterward, the pipeline and pump station began testing before entering regular service in September 2003.

 

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