Significant Industrial Users are required to maintain a Wastewater Discharge Permit.

A significant User is defined as:

• One who is regulated by Federal Categorical User Standards, or
• One who discharges 25,000 gallons or more of process wastewater per day, or
• One whose discharges make up five percent or more of a treatment plant’s average dry weather capacity, or
• One who has the potential cause an upset or pass-though at the water reclamation facility (wastewater treatment plant).