Dorchester Refining Company
From 1936-1984 a petroleum refinery operated on approximately 138 acres at 1723 West 1st Street in Mount Pleasant, Titus County. Operations involved refining gasoline, diesel, and asphalt products. In the mid-1990s the TCEQ inspected the site, noted violations, and filed enforcement actions against the operators.
Superfund Registry and Investigation
The TCEQ conducted remedial investigations at the site from 1998-2003. The investigations revealed elevated levels of heavy metals (cadmium, chromium, lead, and mercury) and semi-volatile constituents (pyrene, chrysene, benzo(b)- and benzo(k)-flouranthene, benzo(a)pyrene, ideno(1,2,3-cd)pyrene, and benzo(g,h,i)perlyene) in site soils, and cadmium, chromium, and lead in sediments at nearby Tankersley creek. The TCEQ proposed the site to the State Superfund Registry in May 2005.
Potentially responsible parties offered to address the site, and entered into a VCP agreement with the TCEQ. The site was accepted into the Voluntary Cleanup program in 2007 and deleted from the registry.
No further Superfund environmental response actions are required.