Employee near the construction site for the expansion of the San Nofre nuclear generating plant, warns swimmers to detour to the beach, June 1975

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Photo credit: © PF-(usna) / Alamy / Afripics
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Keywords: .., agency, archives, documerica, environmental, environmentalprotectionagency, historic, history, nara:arcid=557467, national, protection, usa, usnationalarchives