Cumming Utilities Reports Sewer Spill Into Big Creek, Second Incident Noted

About 750 gallons of raw sewage reached Big Creek after a sewer line at the 5500 block of Oak Hill Terrace became partially blocked with grease, rocks, and rags, Cumming Utilities reported Monday, with state officials notified of the discharge.

Utility crews responded to the blockage in the Big Creek corridor and cleared it by jetting the sewer line, restoring proper flow before the close of business Monday, March 30. City officials followed with a public notification Tuesday, March 31, disclosing the spill and the state notification as required under Georgia Environmental Protection Division rules.

The cause, a combination of grease, rocks, and rags lodged in the line, reflects a persistent pressure point for municipal sewer systems. Cumming's own ordinance requires food service establishments to install and maintain grease interceptors, with fines and potential closure on the table for operators who fall short. The presence of rags in the blockage points to a separate problem: so-called "flushable" wipes and household debris that enter the collection system and accumulate alongside grease until flow stops.

The Oak Hill Terrace incident was the second sewer spill reported in Forsyth County within roughly a week. Forsyth County's own water and sewer system separately reported a sewage spill to Georgia EPD on March 22, a disclosure that followed a pattern of incidents across both the city and county systems over recent years. Those have ranged from a few hundred gallons to a 188,000-gallon overflow near the Fowler Water Reclamation Facility, triggered by a rain event that overwhelmed the system with stormwater.

Big Creek feeds the Chattahoochee River basin and sits downstream of Cumming's Advanced Water Reclamation Facility, which discharges treated effluent into the creek near Bethelview Road. Under Georgia EPD protocol, any spill that reaches a creek or stream triggers mandatory public and media notification, and depending on volume and contaminant levels, can require the utility to monitor water quality in the affected waterway for up to a year with regular reports filed with the state.

At 750 gallons, Monday's spill falls well below the threshold for extended monitoring requirements, but it lands during a stretch of heightened scrutiny for Forsyth's water infrastructure. Cumming Utilities has publicly committed to expanding the Cumming Water Production Facility to 36 million gallons per day to serve a county that has ranked among Georgia's fastest-growing for years. Whether aging collection-system lines keep pace with that growth, or continue generating spill reports, is a question ratepayers and regulators are watching closely.