STATE OF GEORGIA DEPARTMENT OF NATURAL RESOURCES

SIU – Significant Industrial User . SUO – Sewer Use Ordinance. Section F. Significant . Definitions. Significant Industrial User (SIU) per 40 CFR 403.3(v) is any of the following: a.All industrial users subject to categorical pretreatment standards under 40 CFR 403.6 and 40 CFR Chapter I, subchapter N. b.A Categorical Industrial User (CIU). ................
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