Sunnymede Peak Wet Weather Flow Management

Overview

The Sunnymede Peak Wet Weather System provides pumping, treatment and temporary storage of peak sanitary sewer flows caused by wet weather events.  This project includes the construction of a new Sunnymede Pump Station with separate Dry Weather and Wet Weather pumping capabilities.  During a peak flow event, sewage is pumped to a high-rate clarification system where solids are removed through a process called ballasted flocculation.  Treated flow is then temporarily stored in an earthen equalization basin until it can be pumped to Fort Smith’s Massard Wastewater Treatment Plant for final treatment and disposal.