An industrial facility is required to apply for a SID permit if it meets one or more of the following definitions for a Significant Industrial Discharger or Significant Industrial User:
All "industrial users" subject to Categorical Pretreatment Standards under 40 CFR 403.6 (1994) and 40 CFR Chapter I, Subchapter N (1994);
All "industrial users" that "discharge" an average of 25,000 gallons per day or more of process wastewater (excluding sanitary wastewater, non-contact cooling water, and boiler blowdown) to a "publicly owned treatment works";
All "industrial users" that "discharge" an average quantity of process wastewater (excluding sanitary wastewater, non-contact cooling water, and boiler blowdown) that makes up five percent or more of the average dry weather organic or hydraulic capacity of the "publicly owned treatment works";
All "industrial users" that "discharge" an average organic loading that makes up five percent or more of the design capacity of the "publicly owned treatment works";
All "industrial users" that "discharge" to a "privately owned treatment works"; or
Any "industrial user" that is determined by the "Director" to have a reasonable potential to adversely affect the operation of the "publicly owned treatment works" or for violating any pretreatment standard or requirement (in accordance with 40 CFR 403.8(f)(6)(1994).
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