David P. Trainor NewFields Mid-Continent, LLC

Mr. Trainor has over 28 years consulting experience on numerous environmental projects.  Categories include federal (NPL, RCRA and removal action programs), state and voluntary efforts.  Responsibilities have included RI/FS programs, groundwater assessments, remedial design and construction management.  He has represented industrial and government clients in technical negotiations for a variety of facilities and settings.           

Presentation Description
The Results of Treating MGP Generated Tar with an Innovative In-Situ Chemical Oxidation Technology at a former MGP Site in Northern Wisconsin
USEPA sponsored a Superfund Innovative Technology Evaluation (SITE) pilot program at a former MGP site in Northern Wisconsin.  In-situ chemical oxidation (ISCO) was selected as the technology for a potential remedy for free-product coal tar present in both shallow and confined aquifers.  The tar is high in both benzene and naphthalene.  This presentation will describe results for the shallow aquifer showing a significant decline in contaminants of concern, especially PAHs.  The discussion will also describe dramatic increases in coal tar recovery in the confined aquifer from an existing pump and treatment system that has continued to operate since the SITE program was completed over two years ago.