Superfund Record of Decision (EPA Region 6): Petro-Chemical Systems, Liberty County, Texas, March 1987. First Remedial Action

摘要

The Petro-Chemical Systems site is a 296-acre tract of land located in Liberty County, Texas. It is in a sparsely populated area seven miles north of I-10 off Frontier Park Road. Waste oils were stored onsite prior to their use, in several pits on approximately four to six acres of the site. Records indicate that waste oils were spread on Frontier Park Road at the site as a method of dust control. In June 1970, all waste oil disposal operations were discontinued and in 1974, the site's commercial disposal facility permit was withdrawn. The Texas Water Commission (TWC) and EPA conducted preliminary investigations of the site in 1982 and 1984. Elevated concentrations of polyaromatic hydrocarbons (PAHs) were found in the former disposal pits. At the end of 1984, the site was placed on the NPL. The primary contaminants of concern include: VOCs, PAHs, benzene and napthalene. Benzene contamination was found up to a maximum concentration of 2100 ppm and napthalene up to a maximum concentration of 700 ppm. Contaminated media includes soil along Frontier Park Road.