Your business may need a permit from the City of Dayton Industrial Pretreatment Program to discharge wastewater into the sanitary sewer system. Businesses that need to apply for a permit to discharge are usually classified as a Significant Industrial User (SIU). A SIU is defined as a business that:

• Is defined by the Code of Federal Regulations, Title 40 as a Categorical Industry; or
• Has a process flow of 25,000 gallons per day or greater; or
• Has a process wastestream that makes up 5% or more of the hydraulic or organic loading capacity of the wastewater treatment plant; or
• Has a discharge with a reasonable potential to violate pre-treatment standards.

The City of Dayton Industrial Pretreatment Program also issues other minor control documents to users which impose specific requirements or limitations on a wastewater discharge.

If you are unsure as to what requirements apply to your business, contact an Industrial Pretreatment Coordinator at (937) 333-1501.