The City of Portland charges permit fees for industrial wastewater pretreatment because the City is required through its National Pollution Discharge Elimination System (NPDES) permit to administer an Industrial Pretreatment Program. For a look at the City’s legal authority to implement and enforce the industrial pretreatment program, please refer to:

City Code Chapter 17.34.070 – Industrial Wastewater Discharges

City Code Chapter 17.36.110 – Extra-Strength Wastewater Charges

ENB-4.03 – Sanitary Discharge and Pretreatment Program (Industrial Wastewater Discharges) Administrative Rules