Regulates all Industrial Users Served by the District.

Approximately 220 "Significant Industrial Users" are controlled via Industrial  Wastewater Discharge Permits.

All Users must Comply with the District's Sewer Use Ordinance.

"The Metropolitan St. Louis Sewer District Received the Environmental Protection Agency (EPA) 1999 National First Place Award for an Outstanding Pretreatment Program in the Greater than 100 Significant Industrial Users Category!"