Is a DEQ permit required if sewage or industrial wastewater is discharged to sanitary sewer (sewage treatment plant)?
Facilities that discharge sewage, industrial wastewater (wastewater associated with any manufacturing process), or wash water to a sanitary sewer (city, county, or district sewage treatment plant or wastewater treatment plant) are not directly regulated by DEQ. In this situation, the Department requires the wastewater treatment plant to obtain a DEQ NPDES or WPCF permit. The plant is then required to regulate the discharges into their system and to maintain compliance with their DEQ permit. If you would like to discharge to the sanitary sewer, please contact the local sanitary authority for more information. A permit and fee may be required from the local authority. Also, if you are already discharging wastewater or wash water to the sanitary system, you are required to notify your local sanitary authority; no notification is required if you are only discharging sewage.
