The fire began on March 17, 2019, and continued to burn at the facility until it was initially extinguished on March 20, 2019. On Friday, March 22, 2019, the fire reignited, and damage to the secondary containment for the 80’s tank battery caused a catastrophic breach, releasing an estimated 470,000-523,000 barrels of a mixture of fire water, firefighting aqueous film forming foams (AFFF), and remaining benzene, ethylbenzene, naphtha, xylene, toluene, pyrolysis gas (pygas) and other refined base oils from the storage tanks were released into Tucker Bayou and adjacent waters, sediments, and habitats (Releases). Releases flowed into Buffalo Bayou and were carried out by stream flow and tides into the San Jacinto River, Houston Ship Channel, Carpenters Bayou, Old River, Santa Ana Bayou, and surrounding water bodies (collectively, the Site).