Runway and Taxiway Repairs Taxiway F & G, and Runway 12/30 - NAF El Centro, California

The airfields at NAF El Centro were in urgent need of repair. Both Taxiways F and G presented FOD hazards due to cracking, raveling of the aging pavement, uneven surface, and obscured pavement markings. Runway 12/30 was also in need of repair due to extensive use and exposure to the harsh desert climate.

The rehabilitation of Taxiways F and G included cold milling 2" of existing pavement, and replacing the asphalt with approved asphaltic pavement, and restriping. GCE provided the quality control testing during the pavement operations. This included compaction testing and coring the new pavement for lab testing. The rehabilitation of Runway 12/30 included removing FOD from existing cracks and placing the approved sealant material within all specified cracks. Sealant application was followed by a complete sweeping of the airfield.

Joint Strike Fighter Soil Remediation - MCAS Yuma, Arizona

MCAS Yuma has seen a dramatic increase in construction projects undertaken to support the new Joint Strike Fighter (JSF) Program. During the grading of the O'Neil Road alignment and associated retention basins, buried and burned munitions were encountered, introducing the potential to delay the construction project. Our team was contacted regarding the investigation and remediation of the site.

Specific tasks included:
 

• Developing an Accident Prevention Plan with a Site Safety and Health Safety Plan and Activity Hazard Analysis for each task
• Excavating approximately 150 cubic yards of contaminated soil from the project area
• Stockpiling contaminated soil in the Biocell area for characterization
• Sampling the bottom and sides of the excavation for RCRA Metals and Explosives
• Characterizing the contaminated soil
• Disposing of the contaminated soil in accordance with federal, state, and local regulations.
• Preparing a Final Remediation Report

All field tasks were completed within 24 hours of notification and no construction delays occurred.

Fire Training Facility Remediation - MCAS Yuma, Arizona

The F-35 Lighting II Program is the Department of Defense's focal point for defining next generation strike aircraft weapons systems. The Marine Corps Air Station Yuma is preparing for the arrival of the Joint Strike Fighter through construction of hangar and support facilities.

The long operational history of the FFTA resulted in degradation of the concrete pads and contamination of the subsurface. Removal of this facility, characterization of the soil and groundwater quality, and remediation of all contamination was required to allow construction of the JSF Hangar. Our team's scope of work included topographic survey, mapping, preparation of planning documents (UFP SAP, SSHP etc.), demolition of all above grade structures and underground utilities, characterization of soil and groundwater quality beneath the site, and remediation of all environmental contamination that was identified. Demolition work on this project included the removal of a 6,000 gallon vaulted fuel storage tank, an oil water separator, a sewage lift station, fuel lines, power poles, and site fencing. More than 500 cubic yards of contaminated soil were excavated and transported to a bioremediation facility.

JSF projects are subject to rigorous time schedules and standards. Our team exceeded expectations by finishing the project under budget, prior to established deadlines, and receiving NAVFAC's Star Safety Excellence Award in recognition of outstanding safety performance.