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More than 30 lawsuits have been filed against GKN Aerospace after one of the company’s tanks containing a highly flammable chemical overheated and threatened a catastrophic explosion<\/a> last month, forcing the evacuation of about 50,000 residents in California’s Orange County.<\/p>\n Debbie Cohran, who lives about 500 feet (152 meters) from the aerospace facility in Garden Grove, wasn\u2019t told to evacuate until several hours after the leak started, according to her complaint. Her suit said she experienced nausea and headaches for several days afterward.<\/p>\n Melanie Rose Burciaga of nearby Westminster had just given birth to her first child and had to leave the hospital when the evacuation orders came in, her lawyer said in a lawsuit.<\/p>\n And Juan Diego Orozco was part of a street repair crew working in Garden Grove on the day the overheating started. He said he suffered a headache and went to the hospital due to difficulty breathing and vomiting, his lawyer said.<\/p>\n More than 100 individuals \u2014 including some families with pets \u2014 as well as local businesses are suing GKN Aerospace, saying the U.K.-based company was negligent in maintaining a safe facility, especially since it\u2019s located in a large population center. <\/p>\n Ten of the cases were filed as class actions in federal court, while 21 are in state court and cover one to 31 plaintiffs. The suits seek compensatory and punitive damages.<\/p>\n Sarah Hasse Blodgett, a spokesperson for GKN Aerospace, did not immediately respond Thursday to questions seeking comment about the lawsuits and their claims. <\/p>\n Adam Zimmerman, a professor at the University of Southern California Gould School of Law who is not involved in the litigation, said the federal cases will likely be consolidated and the state cases will likely be moved under one judge, to ensure they are handled efficiently. Some of those state lawsuits may be moved to federal court, he said. <\/p>\n Pressure on the company increased on Wednesday when FBI agents served a search warrant<\/a> at the facility to collect documents and records related to the \u201cstorage, use, or disposal\u201d of methyl methacrylate, the chemical inside the affected tank.<\/p>\n The Environmental Protection Agency said Thursday that it had joined the FBI to \u201csearch for and seize evidence of potential federal environmental crimes.” The agency declined to provide more information, saying it doesn’t comment on criminal investigations. <\/p>\n GKN Aerospace makes cockpit windows, canopies and windshields. The tank that overheated<\/a> starting on May 21 contained 6,000 to 7,000 gallons (22,700 to 26,500 liters) of methyl methacrylate, which is highly flammable. The liquid is used in the manufacturing of plastics and coatings, such as Plexiglas.<\/p>\n Health officials said no contamination or fumes were released, and they plan to monitor the air for several months. Exposure to the chemical can cause serious respiratory problems, neurological issues and irritation to the skin, eyes and throat, according to the EPA<\/a>. <\/p>\n Although the tank did not explode, tens of thousands of residents were evacuated from the area for three to five days until crews were able to stabilize the tank.<\/p>\n Blodgett said that the company was cooperating with federal authorities. <\/p>\n