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The residue remaining in the autoclave vessel is a dark, syrupy mass called creosote, which is composed mainly of phenolic acid and cresylic acid. The original composition of creolin is a creosote tar oil, caustic soda, soaps, and very little water. It is of low technology and a very powerful disinfectant. [1]
The term creosote has a broad range of definitions depending on the origin of the coal tar oil and end-use of the material. With respect to wood preservatives, the United States Environmental Protection Agency (EPA) considers the term creosote to mean a pesticide for use as a wood preservative meeting the American Wood Protection Association (AWPA) Standards P1/P13 and P2. [6]
However, a broad overview of the plan is listed, including: removing all of the machinery from the failed steam enhanced pump and treat operation, creating a diversion subterranean wall for clean ground water to be diverted so as not to mix with creosote infiltrated ground water, immobilizing 267,000 cubic yards of contaminants in the current ...
It was soon discovered to be creosote, which is considered a hazardous chemical. This brought attention to the EPA of the issues left behind from the Federal Creosote Site. They started to test the surrounding areas and found creosote in 31 of the 137 homes. In response, by 1998 the site was proposed to the National Priorities List by the EPA.
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Creosote is a tar-based preservative that is commonly used for utility poles and railroad ties or sleepers. Creosote is one of the oldest wood preservatives, and was originally derived from a wood distillate, but now, virtually all creosote is manufactured from the distillation of coal tar.
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To increase the volume of creosote available for wood treatment, Southern Pacific used creosote extenders in the site's treatment process. [18] Concerns arose when it was revealed [17] that some of these extenders were sourced from what are now Houston-area Superfund sites––including Brio Refining, Dixie Oil Processors, and Motco––bringing the extender's safety and toxicity into ...
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