Cost-effective groundwater remediation project wins NGWA award


Source: Solutions-IES

Solutions-IES, Inc., a leading provider of professional environmental engineering and remediation services for government and commercial clients around the world, has announced that the firm 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.

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. The Army Environmental Command (AEC) hired Solutions-IES for its patented Emulsified Oil Substrate (EOS®) Process. For less than $650,000, Solutions-IES treated the source area with EOS® ( 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.

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