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TABLE 4 <br />NPGES PARAMETERS <br />Parameter Bi-Weekly Quarterly <br />Copper X <br />Iron X X <br />Zinc X X <br />Cadmium X X <br />Lead X <br />Mercury X <br />Silver X <br />Thallium X X <br />Solids, dissolved X X <br />suspended X X <br />Cyanide, Total X <br />NOTE: All metals are Total <br />The parameter list has been changed as of November 27, 1984. <br />