The Environmental Protection Authority (EPA) has launched an investigation into an environmental incident at the Beposo Tailings Storage Facility (BTSF) of AngloGold Ashanti Iduapriem Limited, which led to the release of supernatant water (process water) into nearby water bodies.
The incident occurred on February 17, 2025, at around 11:30 a.m., causing concerns over potential contamination.
According to an official statement from the EPA dated February 27, the supernatant water seeped from the Western Embankment of the BTSF and flowed downstream through the Awoenaben stream diversion channel, eventually reaching the Ahumabru stream, Bonsa River, and Ankobra River.
“An initial estimated volume of 80,000m³ of supernatant water was released over an estimated area of 13.89Ha,” the statement revealed.
The EPA confirmed that emergency measures were put in place to contain the situation. “The seepage was contained by constructing a coffer dam at the toe of the facility and the supernatant water pumped to the emergency pond,” the statement explained.
However, concerns remain about the Ahumabru stream, which has already been impacted by illegal mining activities.
An initial water quality assessment conducted on the day of the incident detected elevated cyanide levels in the affected stream, exceeding the threshold stipulated in GS: 1212, 2019. However, subsequent assessments showed a significant reduction in cyanide levels. “A comprehensive assessment and incident investigation are ongoing to establish the cause of the incident,” the EPA assured.
The agency has also initiated continuous water quality monitoring, sediment analysis, and an aquatic fauna assessment to determine the full extent of the environmental impact. Meanwhile, the public has been advised to avoid using water from the affected streams until further notice.
“The public is being cautioned to refrain from the direct interaction/usage of the stream until further notice,” the EPA warned.
Source: Ghana/Starrfm.com.gh/103.5FM/Deborah Amuzu
