Significant Industrial Users

An SIU is as an industry that:

•Is subject to Categorical Pretreatment Standards
•Discharges 25,000 or more gallons per day of process water (excluding sanitary, non-contact cooling and boiler blow down wastewater)
•Contributes 5% or more of the average dry weather capacity of the water recovery facility
•Has a reasonable potential for adversely affecting the water recovery facility