The wastewater received from the city and townships arrives through two pipes, one from the north and one from the south side.

Our plant has a hydraulic loading capacity of 12 million gallons per day. On an average day, about nine MGD of wastewater is coming into the plant. The hydraulic capacity is variable, meaning it is based on the environemtal loadings such as Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD).

Once in the facility, the influent is treated in several stages. The primary stage includes routing the wastewater to primary treatment clarifiers where about half of the pollutants in the wastewater are removed. The next step, secondary treatment, includes using biological and gravity treatments to bring the level of pollutants removed to over 85 percent. This meets all discharge permits issued by the EPA and DNRE, and allows the treated wastewater to be released to Lake Macatawa.