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.
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.
Contact Atoka, Inc. today so we can provide you with the healthiest and most economical choices for your next project.
ATOKA, Inc.
is an Arkansas-based, full service engineering
and environmental consulting firm
providing a wide range of services to private industry and government
agencies. ATOKA is also the name of a major geological formation found
within the central United States (photo to right).
At
ATOKA, our goal is to meet the needs and desires of every client in the
most efficient and effective way possible. Our experienced engineers,
scientists, and specialists take the guesswork out of environmental
compliance and provide the highest quality design and permitting
services available.
The name ATOKA was adopted from the Native American heritage shared by the owners. The name is derived from the Choctaw language and means “fair playing field” in the game of stickball. The name portrays the company’s objectives of conducting work professionally with honesty and integrity.
ATOKA, Inc. was incorporated in 1994, and expanded
in 1996, through the combining of companies owned by Joe Henry, Cliff
McBryde, and Jerry Overton. This unique combination created a company
with experience and expertise in just about any basic engineering or
environmental project you could imagine. ATOKA currently provides
services from offices in Hot Springs and Little Rock with a satellite
office in El Dorado, Arkansas. Our corporate headquarters is in Hot
Springs and our Analytical Laboratory is located in the Little Rock
office.