FILE - In this Dec. 23, 2007, file photo, the beaches adjacent to the Tijuana Estuary are posted with signs declaring them unsafe due to pollution that flows through the estuary after feeding in from Tijuana, Mexico in Imperial Beach, Calif. Officials in California are crying foul after more than 140 million gallons of raw sewage spilled into the Tijuana River in Mexico and flowed into the U.S. for more than two weeks. A report released Friday, Feb. 24, 2017, by the International Boundary and Water Commission says the spill was caused Feb. 2 by an apparent rupture in a sewage collector pipe and wasn't contained until Thursday. (AP Photo/Lenny Ignelzi, File)
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