This $3 M project for the North Dakota State Water Commission entailed installation of 865 feet of 36-inch bored steel casing, 370 feet of 42-inch bored steel casing, and 1,250 feet of 48-inch bored steel casing. Ground conditions for the entire project were very wet and sandy, which necessitated use of a slide rail shoring system and a pilot tube system.
The EPA and Georgia EPD required the City of Atlanta to have a 100 MGD, 160-foot- deep tunnel pump station online and fully operational within 28 months. The Nancy Creek Pump Station was built to remove wastewater from the tunnel as quickly as possible and thereby maximize the available capacity of the plant. Working proactively allowed Western Summit to beat the scheduled milestones, meet the $32-million budget, and provide a quality product while maintaining a safe work environment in hazardous conditions.
In 2006, the project earned a 2006 Design-Build Excellence Award from DBIA.
When forecasted continued growth in the southern Atlanta area required Camp Creek WRF
to increase its capacity, Fulton County hired the Design-Build-Operate team of American Water, WSCI, and Parsons.
The project scope included construction of a 24 MGD Water Reclamation Facility with a 15-year operations period. This entailed reclassifying the existing 13 MGD plant to 8 MGD, then building a new 16 MGD treatment facility without interrupting operations. The 30-month design and construction schedule included additional scope for dissembly, transfer, and reconstruction of two existing 1.2 MGD package plants.
Western Summit performed as General Contractor and DBO Team Partner by providing constructability reviews during design, detailed cost estimating for the guaranteed maximum price, aggressive scheduling, and value engineering assistance. During construction, WSCI self-performed over 65% of all work while still meeting the Owner’s 31% minority / woman-owned subcontractor requirement. Items self-performed included site work, structural concrete, process equipment and yard piping.
This $84-million project supports the growing community of El Paso County by treating “brackish” water into potable drinking water. The largest inland deslination plant in the nation when built, the plant uses a reverse osmosis process to produces 27.5 MGD of fresh water, increasing El Paso Water Utilities’ production by approximately 25 %.
Though the desalination plant completed by WSCI is the campus’ primary component, separate developments include a learning center, groundwater wells, transmission pipelines, storage and pumping facilities, and disposal wells for concentrated waste.
In addition to providing a steady supply of fresh water, the project serves as a model for other inland cities faced with diminishing water supplies.