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During the week of August 20, 2007, a rain event and subsequent flood event occurred on the Blanchard River in western Ohio. On August 23, 2007, the River crested at nearly 9 feet above flood level, and six Ohio counties were subsequently declared "Disaster Areas" by FEMA. As a result of the flooding, many tanks, drums, small containers, and household hazardous waste (HHW) containers were transported several miles downstream by the flood waters and discharged in wooded and remote areas along the Blanchard River and its tributaries. On August 29-30 and September 5, 2007, EPA performed road and river reconnaissance under a FEMA Mission Assignment to locate these orphaned/abandoned containers in Putnam County. On October 4, 2007, the Superfund Technical Assistance and Response Team (START) and Emergency and Rapid Response Service (ERRS) contractors were mobilized to Hancock County to assist in the removal of previously identified tanks, drums, small containers, and HHW that were orphaned/abandoned by the flood waters.
During the week of October 11, 2007, all wastes were sampled and HazCAT activities were performed on the materials in the containers. HazCAT results confirmed the presence of flammable and corrosive liquids. Waste characterization sampling, which was conducted for disposal purposes, identified arsenic, lead, selenium, and chromium at concentrations that exceeded the RCRA TCLP regulatory limits. Waste characterization results also identified elevated levels of some RCRA solvents, including benzene, ethylbenzene, MEK, toluene, and xylenes.
On December 13, 2008, all segregated wastes, which were staged at the Hancock County Landfill, were disposed of at EQ Detroit, Inc., in Wayne County, Michigan.
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