CLARK ISLAND ENVIRONMENTAL SEDIMENT REMEDIATION PROJECT REINFORCED FILTERMAT™ GEOCOMPOSITE Allied-Signal produced sulfuric acid at Clark Island, Salaberry-De-Valley, Canada in the St. Lawrence River for 40 years for use in the manufacturing of munitions. As part of the production of sulfuric acid, pyrite ores, “fool’s gold,” were crushed and heated, separating the iron and sulfur, with the sulfur being used to produce the sulfuric acid. The u

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