The Stewco site, previously a tanker truck terminal and truck washing facility, is located in northeastern Texas, in Eastern Harrison County, south of the city limits of Waskom. The site consists of two nonadjacent locations approximately one mile apart, referred to as Location 1 and Location 2. Location 1 is a one-half acre plot that includes a maintenance shop with fueling facilities, a truck-tank washing facility, and two backfilled and capped evaporation ponds (ponds 1 and 2) that received wastewater from the tank washing operation. Land use within a one mile radius of the two locations includes residential, recreation, industrial, and commercial. The wastewater generated from washing the outside of trucks, and the tank residue resulting from steam cleaning the inside of the tankers were directed to pond 1 with overflow entering pond 2, and the surplus transported to the third pond at Location 2. All ponds were unlined. Consequently, EPA conducted a removal action at Location 1 from March 31 to April 14, 1984. The pond disposal area was then backfilled and capped. No removal or remedial actions were taken at Location 2 since the level of contamination was much less than that of Location 1 and the pond was not filled near capacity. The contaminants of concern prior to the removal action were VOCs, PAHs, and phthalates. No further action will be taken at the site.
"September 1988." EPA/ROD/R06-88/038. PB89-235261. Additional title: Superfund record of decision (EPA Region 6)--Stewco Inc., site, Harrison County, Texas, September 16, 1988, first remedial action.