What started as a quiet Sunday in East Cobb turned messy when nearly 1,950 gallons of untreated wastewater spilled into a Marietta tributary after tree roots clogged a sewer line, county officials said. The overflow poured from a manhole near 1571 East Bank Drive into a small stream that drains to the Timber Ridge Branch before crews finally stopped the flow. Workers then moved in to clean up the scene, treat the stream banks, and, at least as of the initial report, officials said they had found no fish kills.
According to the Cobb County Water System, the May 24 overflow sent an estimated 1,950 gallons into the tributary. Crews were notified at 5:58 p.m. and managed to stop the spill by 8:55 p.m. after using a jet machine to clear root intrusions that had blocked the sewer line. Field crews documented wastewater flowing from manhole MH#403-B041 across an area roughly 100 feet by 10 feet before cleanup teams arrived and applied lime along the affected stream banks.
How Crews Responded And What They Found
CBS News Atlanta reported that county crews cleared the blockage and spread lime to help limit environmental impacts after the spill. The Georgia Environmental Protection Division requires public notification of sewer overflows and maintains a public spills page and GEOS reporting portal so utilities can file initial reports and follow-up documentation, including any required stream sampling.
Not An Isolated Incident
The East Bank incident is just one of several overflows listed on the county’s Cobb County Water System CMOM press page, which shows multiple spills across Marietta and nearby areas this spring. That online list details several recent May and April overflows, including other root-related blockages and infrastructure breakages, highlighting ongoing maintenance needs across the sewer system.
What Residents Should Know
The Georgia Environmental Protection Division’s guidance says utilities must file an initial 24-hour report after an overflow, followed by a 5-day report with more detailed information and any required stream sampling. Residents who notice discolored water, unusual odors, or visible sewage in local creeks are urged to avoid contact. They can review spill reports or flag concerns through the Georgia Environmental Protection Division site or by contacting their water provider directly.
The spill also reinforces the county’s challenge of keeping aging sewer pipes and tree-root problems in check, a task that hinges on steady funding. Cobb County and the City of Marietta have both approved water and sewer rate increases this year to help cover repairs and upgrades, as reported by the Cobb County Courier.
