The domestic wastewater first goes to the primary plant and undergoes primary treatment and chlorination.  The industrial wastewater which is 85% of the total flow, feeds directly into the regional facility.  Wastewater first flows through three bar screens.  These screens filter out larger particles, and the water then flows through the parallel grit chambers.  Grit chambers use the forces of gravity to remove smaller, heavier particles like gravel and sand by decreasing the velocity of the flow.  From there the flow enters the Parshall flumes which measure the rate of flow.  The flow then enters primary treatment which consists of eight clarifiers.  Primary treatment removes the settleable and floatable solids from the wastewater.

The flow then enters secondary treatment which is biological rather than physical as in the previous stages of treatment.  In this stage, bacteria consume most of the remaining waste materials.  To sustain the growth of this bacteria, oxygen is added to the wastewater in one of four sealed pure oxygen reactors.  This oxygen is produced in an on-site cryogenic plant.  After a few hours, the water flows into sedimentation tanks where solids settle to the bottom.  This completes the secondary phase of treatment.  At this point 90-95% of the pollutants have been removed from the wastewater.

Throughout the wastewater treatment process,  solids have been removed from the wastewater.  These solids are called sludge or biosolids and require further processing.  The goal in processing sludge is to take as much water out of it as possible and to return the water to the river in an environmentally safe state.  To remove the water from sludge, it is pumped into gravity thickeners.  These thickeners also use the force of gravity to separate water from these solids.  The sludge is placed in a holding tank at this point.  The waste activated or biological sludge is sent through air flotation thickeners which thicken waste-activated sludge.  It then goes to a holding tank where it is blended with the primary sludge. The solids handling system at the plant consists of gravity thickening of primary sludge and dissolved air flotation thickening of Waste Activated Sludge (WAS), followed by treatment using a dry solid centrifuge, polymer feed system and multiple hearth incineration.  Ash from the incinerator is then disposed of in an approved landfill, safely returning the materials to the environment.