California water agency selects CH2M HILL for DBO project

DENVER — The Woodland-Davis Clean Water Agency recently awarded a $141.2 million contract to CH2M HILL for the design, construction and long-term operation of a new surface water treatment system, largely helping replace groundwater with treated surface water from the Sacramento River by 2016.

The decision by the joint powers authority, representing the cities of Woodland and Davis, Calif., culminated a nearly three-year competitive process. The contract cost about $10.3 million less than its original estimate, a 25 percent reduction. The contract will provide for improved water supply reliability and water quality and help the cities comply with increasingly strict state and federal water quality and wastewater discharge regulations, WDCWA officials say.

“This is one of the most significant milestones in Yolo County history,” said Don Saylor, Yolo County supervisor and a founding WDCWA board member, in an agency news release. “I started working on this my first year on the Davis City Council in 2003, and at that time we began setting the stage for the good work this agency has pulled together. The pursuit of a design-build-operate contract has proven to be the right choice. The cost reductions, protections for the cities and quality assurances combine into what is truly a good piece of work. This is a historic moment and also an amazing legacy.”

The procurement process began in January 2011 when the WDCWA issued a request for qualifications from firms with proven experience in the design, construction and operation of water treatment facilities. In June 2011, the agency pre-qualified three teams. By June 2013, two of the three teams had bowed out, “because they were unable to deliver the project under the rigorous terms and cost limits established by the agency,” WDCWA officials said. CH2M HILL was able to submit a responsive cost and technical proposal that led to service contract negotiations and ultimately the contract award.

“We commend the cities of Woodland and Davis for proactively addressing water resource issues,” CH2M HILL Project Manager Rich Pyle said. “The DBO process they’ve chosen will not only create a more sustainable water supply for the cities and save ratepayers money, but the treatment systems we’re designing will improve water quality and taste. We are pleased to be the cities’ long-term partner and we look forward to contributing to the communities.”

The project includes construction of a water collection pipeline from the Sacramento, water treatment plant and treated water pump stations, and distribution pipelines to each city, Pyle said. Construction on the treatment facility is expected to begin in March 2014.
 


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