For the 3 MGD Charles E. Meyer Desalination Plant, Kiewit led BOP design and construction of the projects facilities, structures and infrastructure. The revitalized plant and overall system uses state-of-the-art technology and incorporates design and construction practices – in all facilities and systems – to reduce electrical demand and environmental impacts, while providing a critical water supply for the City.
Kiewit designed and constructed the largest most technologically advanced and energy-efficient seawater desalination plant in the nation. From the SWRO facility with pumping station and produced water storage to the 10-mile 54-in high-pressure welded steel conveyance pipeline; Kiewit also managed the seamless integration of the 50 MGD plant to the distribution system that included 9 jack and bore crossings, 900+ existing utility crossings, a 1,750 LF tunnel, and 42 manways.
The scope of work included demolition of the existing hopper bottom, metal roofed reservoir, the construction of a new 20 MG cast-in-place reservoir, installation of chemical feed piping, level sensors, transmitters and associated conduits and control wiring.
Kiewit was selected by the City of Somerton for the expansion of their Sequential Batch Reactor (SBR) Wastewater Treatment Plant (WWTP). Prior to the design commencing, Kiewit performed cost modeling and constructability reviews to aid in the determination if a Biological Nutrient Removal Process (BNR) design would be more beneficial than the original concept. Kiewit provided anticipated construction costs and schedules for the conversion of the existing SBRs to a BNR. Kiewit performed the same analysis in developing the cost and schedule for the construction of additional SBRs. These side by side comparisons allowed the selection of the best value expansion approach for the WWTP. The BNR approach was selected and increased the current .8 MGD to 1.8 MGD for an addition of .6 MGD in capacity from the original concept.
The Union Hills Water Treatment Plant Rehabilitation project involved the complete replacement and upgrade of half of the plant’s 5kV electrical feed, including construction of a new electrical building expansion and 2,500+ LF of new ductbank installation amidst numerous existing utilities. New electrical switchgear and motor control equipment were furnished to upgrade the plant’s finished water pump systems.
The City of Bakersfield awarded Kiewit Pacific Co., a subsidiary of Kiewit Corporation, a $29 million project to upgrade the existing Bakersfield Wastewater Treatment Plant. To date, this project is the largest contract the City of Bakersfield has ever awarded.
In May 2000, Kiewit Pacific Co. was selected to construct this $98 million, 12 MGD water treatment plant. The project consists of 31 structures, including an administration building, three oxidation ditches, four secondary clarifiers, two waste-activated sludge tanks, a solids handling basin, a chlorine contact basin, filter building, chemical feed building and influent pump station.
Kiewit Pacific Co. completed Phase II of a $42 million contract to improve water quality and plant operations at the Penitencia Water Treatment Plant. The project scope included the construction of a two-story, 7,200-square-foot ozone generation building, an ozone contractor structure and a liquid oxygen storage and vaporizer structure.
The largest brackish water desalination plant in North America has the capacity of 27.5 MGD to meet the needs of both Ft. Bliss and El Paso Water Utilities. With the constraints of a 22-month schedule from notice to proceed to substantial completion, Kiewit performed all structural concrete work, set all embed items for mechanical equipment and structural steel, installed pumps and piping, RO skids chemical systems and equipment, and performed start up and commissioning.
At $192 million, and located on 80 acres, Prairie Waters is the largest project ever undertaken by Western Summit without a joint venture partner. When finished, this state-of-the-art water purification facility will increase water supply by 20 percent, or about 3.3 billion gallons per year.