Facilities

Combined Sewer Overflow
Intrenchment Creek CSO 1510 Key Rd., SE Atlanta, GA 30316

Intrenchment Creek CSO

The Intrenchment Creek CSO Treatment Plant (CSOTP) Facility is located at 1510 Key Road in a primarily industrial area. Operation at the Intrenchment Creek CSOTP commenced in 1983 and upon commencement, this facility became part of a larger East Area CSO network that includes the Boulevard and Confederate CSO Regulator Facilities, the McDaniel CSO facility, Custer CSO Facility, and the Intrenchment Creek CSO Storage Tunnel. Flow to the Intrenchment Creek CSOTP results directly from upstream CSO events at the Custer Avenue Facility. Flow from the Custer Avenue Facility is first diverted to the Intrenchment Creek Storage Tunnel. The storage tunnel is designed to capture and store the first 30 to 34 million gallons of wet weather flow. A 20-million gallon per day (mgd) dewatering pump station is located at the tunnel terminus to dewater the tunnel system and route the stored flow to the Intrenchment Creek CSOTP for physical and chemical treatment. Dry weather flow from the Intrenchment Creek CSOTP is routed to the Intrenchment Creek WRC for further treatment. Wet weather overflow from the Intrenchment Creek CSOTP is screened, grit and solids are removed, and flow is disinfected prior to discharge to Intrenchment Creek.

CSO events for the past 30 days (ordered by most recent activity):