The Tinkham's Garage site includes 375 acres of residential and undeveloped land in Londonderry, New Hampshire. EPA site investigations in 1981 revealed onsite soil and ground water contaminated with VOCs resulting from onsite surface dumping of liquids and sludge in 1978 and 1979. The major contaminated soil area is in a field behind Tinkham's Garage. The first remedial action selected for the site was documented in a 1986 Record of Decision (ROD), which included excavation of approximately 10,800 cubic yards of contaminated soil with onsite treatment using either thermal aeration, composting or soil washing. Local wetlands impacted by soil excavating activities and contaminated ground water were also to be remediated. Information generated during a pre-design study led EPA in 1988 to propose the amendment to the 1986 ROD. As a result of the pre-design study findings, the remedial action selected in the 1986 ROD was never implemented. The primary contaminants of concern affecting the soil and ground water are VOCs including TCE and PCE. The selected remedial action for the site is included.