Stage of Clean-up: Construction Completed
Conditions at Proposal (July 29, 1991): The Ralph Gray Trucking Co. site is in a 23-acre residential area near the intersection of Sowell Avenue and Golden West Street, north of the San Diego Freeway in Westminster, Orange County, California. The site was originally proposed under the name "Westminster Tract #2633." From the 1930s through the 1950s, portions of the site were used for disposal of SULFURIC ACID sludge and OIL refinery wastes in unlined surface impoundments. Investigations subsequent to proposal indicate that Ralph Gray Trucking Co. transported the waste materials to the impoundments, which the company owned and operated. In 1936, the company and its owner were convicted in the Justice Court of Huntington Beach Township for maintaining a public nuisance at the site. During the late 1950s, Hintz Development Corp. purchased the site to develop a housing tract. When development began, a "tar sump" containing wastes once stored on-site was discovered. Hintz Development excavated the wastes and placed them into three unlined redisposal trenches also located on-site. After the tract had been built, residents living in houses near the suspected locations of the redisposal trenches complained of black tar-like seeps in backyards, foul odors, and damage to fences, lawns, and patios due to unusual settling of the ground surface. More...
Sources of Contamination: