Chlorinated Solvent Remediation

• Downtown Mason, MI

• Active storage facility

• Groundwater plumes and source/DNAPL

• Anthropogenic carbon source (BTEX) co-spilled…analogous to AFB sites or carbon over-loaded remediation sites = stalled dechlorination

• VC dominant groundwater = low halorespiration energy available

• Plumes A-G

• ARCO Rubber and Plastics (Plume G, PCE, TCA, toluene)

• Biewer Lumber (Plume F, chromium and arsenic)

• Alternatives to pump and treat / air stripping

• Plumes F and G

• Research Objectives

• Biostimulation and bioaugmentation for chlorinated solvent / metals remediation (PCE,TCE,c-DCE, TCA)

• Laboratory and in situ field evaluations

• Manufacturing facility dating back decades

• TCE degreasing operations

• DNAPL source and dissolved plume

• Permeable reactive barrier –reductive dechlorination combined with source area treatment by ISCO