Reported failures

More than 15 incidents with floating roof storage tanks led to more than 3.1 million pounds of air emissions in the aftermath of Hurricane Harvey. These are the main incidents self-reported by industry: Magellan Midstream: Two tanks, Aug. 31, Galena Park terminal, 2.47 million pounds of emissions from gasoline spills of nearly 11,000 barrels. Kinder Morgan: Three tanks, Aug. 27 and 30, Pasadena terminal, nearly 260,000 pounds of emissions from issues including “partially submerged floating roof” problems. Valero Energy: One tank, Aug. 27, Houston refinery near Manchester neighborhood, more than 235,000 pounds of emissions from the “partial sinking” of a roof. Enterprise Products: One tank, Aug. 31, Galena Park terminal, nearly 57,000 pounds of emissions when rainfall exceeded the capacity of the storage tank’s roof drain. Royal Dutch Shell: Four tanks, Aug. 28, Sept. 1 and Sept. 1, nearly 50,000 pounds of emissions from three tank issues in Deer Park and one in Port Neches, including issues from sinking roofs caused by “significant roof stress.” Exxon Mobil: One tank, Aug. 27, Baytown, nearly 13,000 pounds of emissions when a “floating roof partially sank during the excess rain event from Hurricane Harvey.” Flint Hills Resources: One tank, Sept. 5, Corpus Christi, more than 10,000 pounds of emissions from a vapor release with a floating roof tank during the refinery restart process after Harvey. Marathon Petroleum: One tank, Aug. 27, Texas City, nearly 8,000 pound of emission after a “roof was observed to be tilting … due to excessive rainwater.” Phillips 66: Two tanks, Aug. 27 and Aug. 30, Pasadena terminal, nearly 630 pounds of emissions from floating roof tanks affected by the storm.