GCE has a long-standing and successful history of providing services to the CBP as both a prime contractor and subcontractor under various contract mechanisms. The projects below demonstrate GCE's efficient use of a multi-disciplinary team able to meet the rigorous requirements of the CBP on a multitude of various projects.

• Wellton CBP Infrastructure. GCE designed the water and sewer infrastructure for the recently constructed Wellton CBP Station. GCE designed and managed the construction of a water distribution main to supply domestic water and fire protection water from the Town of Wellton to the new station complex. The waterline project included 1.5 miles of 16-inch diameter water main, with all associated fire hydrants and water valves. GCE designed the system to ensure adequate water pressure for the new station and performed water-flow testing to ensure the existing pressures met design specifications. GCE’s team also designed and permitted the On-site Wastewater Treatment System to collect domestic wastewater from the station, dog kennel, fuel island, and the maintenance shop. The final design included 1,300 linear feet (LF) of 8-inch diameter sewer pipe, sewer manholes, cleanouts, a 22,500-gallon septic tank, and 1,200 LF of pressurized leach lines. In addition, GCE designed and permitted a surface impoundment to handle the effluent from the vehicle wash area. The design included sewer piping, oil/water separator, pump tank sampling port, and infiltration bed. GCE ensured all special inspections were conducted including structural masonry, steel, welding, bolting, reinforced concrete, and exterior insulation and finish systems inspections. In addition, GCE facilitated all the materials testing for Quality Control of concrete, aggregate base, and soil compactions.
• Remote Video Surveillance Systems (RVSS) Tower Sites. GCE completed the geotechnical investigation for the design of 11 proposed RVSS Tower Sites along the U.S./Mexico border in the vicinity of Imperial County, California and Yuma, Arizona. GCE evaluated the underlying soil conditions at each of the proposed sites and provided engineering recommendations for foundations, site grading, earthwork and other related activities.
• C-1 Fence Repair. GCE completed the geotechnical study for the C-1 Border Fence repair project along the California border with Mexico, in the vicinity of Andrade, CA. An approximately 300-foot portion of the U.S./Mexico border fence collapsed, and GCE was hired to investigate the underlying soil conditions along the existing failed fence alignment and provide engineering recommendations for securing the border fence with a retaining wall.
• West Desert Roads. GCE completed the geotechnical study for the West Desert ELC 7300-1 All Weather Road Improvements (West Desert Road) project along the California border with Mexico, in the vicinity of Imperial Valley, CA. GCE evaluated the surface and underlying soil conditions along the proposed alignment and provide engineering recommendations for structurally efficient aggregate base surfaced roads, site grading, earthwork and other related activities.
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