Bonestroo recommended a plan to accelerate treatment plant expansion and potentially serve adjacent communities by increasing capacity requirements from .624 million gallons per day (mgd) to 1.93 mgd.

An activated sludge process runs parallel to a trickling filter process, treating wastewater in two separate tracks. The new process modifies the standard oxidation ditch with an extended aeration design called single-stage nitrification. Capable of biological phosphorus removal and total nitrogen reduction in an aeration tank approximately two-thirds the volume of a standard ditch, it provides lower cost, good effluent quality, high reliability, and low sludge production.

The design used aspects of the existing plant, making the upgrade economical.