Dr. Jerry Overton Receives 2016 OSU A&S Distinguished Alumni Award 

Mr. Burroughs is a Project Manager in the ATOKA office in Hot Springs, Arkansas. He is both a licensed Professional Engineer (PE) and a licensed General Contractor (GC). He has both engineering and construction experience in commercial and residential building, site development, storm water management and drainage. Aaron has 30+ years of experience with roughly 15 years in construction and 15 years in engineering. Mr. Burroughs’ civil engineering and structural design experience included steel, steel reinforced concrete, site layout, land development, storm water management, solid waste facility design and permitting, and regulatory compliance. He has utility design and distribution experience in water, wastewater, gas, power and communications. Aaron has public and private work experience in road, bridge, and culvert design

ATOKA provided conventional remediation and in-situ bioremediation services for a confidential client in Bentonville, Arkansas during 2014 - 2015. The primary contaminant was tetrachloroethylene (PCE), a solvent used in dry cleaning fluids. The contaminant was found from the ground surface to the water table at approximately 27 feet below ground surface. ATOKA provided all site characterization services, remediation design and remediation oversight. Actual remediation was subcontracted under the supervision of ATOKA. Conventional remediation included the excavation of contaminated soils to approximately 15 feet below ground surface. The remaining depth to bedrock, including the perched groundwater aquifer was treated in-situ using a commercial mixture of bioremediation and oxidizing agents. This bioremediation project utilized injected microbial organisms that accelerated the natural breakdown of PCE to ethene, a simple hydrocarbon with low toxicity that biodegrades quickly in the presence of oxygen and sunlight and is unlikely to adversely affect terrestrial life (DOW, 2014). The chemical breakdown occurs by the transformation of the PCE molecule to trichloroethylene (TCE), then to dichloroethylene (DCE), then to Vinyl Chloride (VC), and finally to ethene. The chemical concentrations of the breakdown process were monitored on a weekly basis and then monitoring was reduced to a monthly basis. The core area of concern had PCE concentrations reduced by more than 90 percent within only a few weeks. Each of the breakdown chemicals expected was identified and graphed to assure that the remediation process was taking place as expected. This particular method of remediation is highly effective, and commonly used, for chlorinated solvents, such as PCE, select toxic metals, nitrated explosives, perchlorate and nitrate. Dow, 2014. Product Safety Assessment Ethylene Form No. 233-00280-MM-0714X, The Dow Chemical Company, revised July 1, 2014.

Stacey Leichliter is the Office Manager and Project Hydrogeologist in the ATOKA offices in El Dorado, Arkansas. She has a BS in Geology / Geophysics and an MS in Geology. Ms. Leichliter has more than eight years of professional experience. She has provided Project Management and Marketing for the firms she has represented. Ms. Leichliter will provide Office Management, Marketing and Environmental services for the El Dorado, Arkansas offices. If you are looking for environmental engineering consulting services in Hot Springs, Little Rock, El Dorado, or all of Arkansas, call Atoka today at 501-712-5159.

Atoka, Inc. can help with the survey, testing, and management of Asbestos. When asbestos-containing materials (ACMs), begin to crumble, they can be a major health hazard. We can quickly identify and document any ACMs in your property and plan for any necessary abatement. ACMs are often hard to identify, but our certified inspectors can provide proper assistance. Contact Atoka, Inc. today so we can provide you with the healthiest and most economical choices for your next project.