Operators with Southern California’s San Onofre Nuclear Generating Station have increased security, saying that one of the plant’s generators may have been tampered with.
Southern California Edison, the utility that oversees the plant, said that coolant was found in the oil system of a backup diesel generator.
“The evidence is not conclusive that it’s tampering,” Edison spokeswoman Jennifer Manfre told the Orange County Register Thursday. “But of course we are doing a very thorough investigation, so that has not been ruled out.”
Two reactor units at San Onofre are offline due to maintenance, so there is no danger to the public. The Unit 2 and Unit 3 reactors were shut down in January after a leak was discovered in a generator tube in Unit 3, reported NBC News.
Edison released a statement saying, “An internal investigation found evidence of potential tampering as the cause of this abnormal condition,” and officials then sent a report to the Nuclear Regulatory Commission.
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