The Cobb County Water System announced Tuesday that it is investigating three separate instances of treated wastewater being released into Lake Allatoona in the last month that didn’t meet state environmental standards.
A release issued through the Cobb government communications office said that there have been three readings of “out of specification test results” from wastewater released from the water system’s Northwest Water Reclamation Facility since late May.
A total of 7 million gallons of “out of spec” wastewater was spilled into the lake. When that happens, the Georgia Environmental Protection Division requires a public notice.
Cobb said last weekend that routine tests conducted last Thursday, Sunday and Monday revealed “out of spec” readings, and that immediate action was taken.
“The released wastewater, which was disinfected, poses no threat to our drinking water supplies. No cleanup or remediation is required,” the Cobb release said.
On Tuesday, Cobb County said the water system is continuing to determine the cause of the readings. which could come from “a contaminate introduced into the wastewater system that interferes with microorganisms used in the treatment process.
“Test results are pending, and crews are working to adjust the plant’s operations to prevent a repeat.”
Cobb is permitted to release 12 million gallons of treated wastewater daily into Lake Allatoona, the primary source of drinking water for Cobb County.
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