The Supreme Court on Monday declined to review a ruling against Exxon Mobil Corp that ordered the company to pay $105 million in damages for polluting New York City's groundwater with a toxic gasoline additive.
The decision not to hear the case leaves intact a July 2 U.S. Circuit Court of Appeals ruling that upheld the judgment.
In 2009, a jury concluded that Exxon contaminated water supply wells when the additive, methyl tertiary butyl ether (MTBE), leaked from its underground storage tanks in the borough of Queens.
The appeals court rejected Exxon's arguments that it was required to use the additive under the federal Clean Air Act. An oxygen-containing substance that is added to gasoline to promote more complete combustion and reduce air pollution, MTBE was one of several additives recommended by regulators to reduce emissions.
It has now largely been phased out of the U.S. fuel supply because of its danger to groundwater.
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