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environmental science
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Locations where separate-phase samples were collected at example site no. 1.
Review of the separate-phase sample results revealed that the gasoline in four of the five samples was a mixture of regular-grade leaded and regular-grade RFG. The fifth sample was immediately adjacent to the 2005 release and did not contain organic lead. The two gasolines could be distinguished based on the organic leads, and the concentrations of RFG-regulated components, such as oxygenates, benzene and the lack of high vapour pressure compounds such as iso-butane. The increase in TEL concentration off-site was caused by the proportions of new and old gasoline, with the on-site locations containing more new gasoline.
Based on the chemistry of the gasoline, the percentage of RFG gasoline and leaded gasoline could be determined. Based on these percentages, the quantity of gasoline derived from the older release could be calculated.
The case eventually went to court because the previous owner refused to accept responsibility for their portion of the cleanup, even though they had revealed that problems had existed when the sale went through (Dover Gas v. Tallemand Corporation, Morris County Court, 2007).