TN&A provides O&M services at remedial treatment facilities across the country. Among our clients are the US Army Corps of Engineers, the Air Force Center for Environmental Excellence, and the US Department of Energy. We also provide services to commercial and industrial clients.
Our experience encompasses initial startup and shakedown through process optimization and compliance monitoring. We have written O&M manuals and performed process optimization for systems that we have designed, constructed, and operated, as well as for existing systems. To enhance our in-situ treatment operations capability, TN&A uses our own Geoprobe® direct push technology (DPT) rig that uses static weight and percussion to drive tools for depth-controlled injection of aerobic and anaerobic treatment additives to accelerate in-situ natural attenuation.
For Raytheon Electronic Systems, TN&A provides O&M services at several California sites. At one location, TN&A was tasked to take over an existing remediation network consisting of over 100 groundwater extraction, SVE, and air sparging wells. Through optimization, TN&A reduced system down time and cut O&M costs by 30%.
At Beale AFB in California, TN&A conducted maintenance activities for installation of erosion control blankets, road repairs, and seeding at the base landfill. We also performed O&M for a bioremediation treatment cell. This work includes moving soil onto and off the cell and winterizing the facility by spraying a soil-cement coating on soil piles to prevent erosion.
TN&A expanded and optimized an existing bioventing system by installing connections to six bioventing wells and making mechanical and electrical connections to the blower. We also completed repairs of sludge beds at the WWTP. Field staff replaced clogged drain lines, installed new pipe connections, and constructed a new lift station.
