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SETTLING POND FROM THE RICOARGENTINE SULPHURIC ACID MILL THE SETTLING POND CONTAINS IRON OXIDE AND OTHER ACIDS WHICH... NARA .tif Scope and content General notes Local identifier DA Environmental Protection Agency NARAAuthor Gillette Bill Photographer File SETTLINGPONDFROMTHERICOARGENTINESULPHURICACIDMILLTHESETTLINGPONDCONTAINSIRONOXIDEANDOTHERACIDSWHICH