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Treat chlorinated solvent contaminated soil and groundwater

Resolve soil and groundwater contamination issues that remove chlorinated solvents, petroleum hydrocarbons i Superfund projects.

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Solutions-IES, Inc., Raleigh, North Carolina, is a provider of professional environmental engineering and remediation services for government and commercial clients around the world.

Below-median Cost Ground Water Remediation

Solutions-IES received the 2007 National Ground Water Association (NGWA) Ground Water Remediation Award in the below-median cost category. Solutions-IES was selected for their innovation and achievement in successfully solving a 10-year problem at the Tarheel Army Missile Plant.

Solutions-IES uses its patented EOS® process to deliver insoluble, slowly biodegradable organic substrates to the subsurface, enhancing the long-term anaerobic biodegradation of chlorinated solvents by naturally occurring microorganisms. This approach substantially reduces both capital and long-term operation and maintenance costs. They have used this technology to treat chlorinated solvent contaminated soil and groundwater at DOD and manufacturing sites throughout the US.

Solvent contamination was first reported at the site in 1993. More than 10 years of standard remediation practices including pump & treat, air sparging and soil vacuum extraction, showed little to no effect on contaminants. Concentrations of trichloroethene (TCE) in groundwater ranged from 2000 to 4000 µg/L under generally oxidative conditions.

Emulsified Oil Substrate (EOS®) Process

The Army Environmental Command (AEC) hired Solutions-IES for its patented Emulsified Oil Substrate (EOS®) Process. For less quickly creating anaerobic reducing conditions and stimulating enhanced reductive dechlorination.

After only six months post-injection and distribution of EOS® throughout the aquifer, TCE concentrations were reduced by more than 99.9% to < 1 µg/L. Solutions-IES’ innovative engineering design using EOS® achieved the site’s regulatory goal in a cost-effective and timely manner. The Army has since transferred the property and the new owner is redeveloping the site for commercial/retail use.

Raleigh, NC

Edited by Carolyn Allen
| brownfields | soil |


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