Heaps of dead fish were found at the shore of the Harties Dam. Image: Inside Out News shared via X @InsideOutNews.
(The Post News)– A sudden wave of dead fish washing up along the shores of Hartbeespoort (Harties) Dam has left residents horrified and environmental officials scrambling to find solutions.
In mid-October, Magalies Water, together with the Madibeng Local Municipality and the Department of Water and Sanitation (DWS), began an urgent investigation after dozens of fish were spotted drifting close to the canals of Venice Village Estate.
No Evident Cause Yet
According to spokesperson for Magalies Water, David Magae, water samples taken at the area showed no unusual readings or indications of contamination. He said, “No obvious contamination or chemical discharge was found throughout our studies.”
Magae said, however, the fact that the incident was reported three days after it happened would have made it more difficult for us to pinpoint the precise reason.
Concerns Over Dam Under Pressure
For many years, the Harties dam, which is one of Gauteng’s most popular recreational areas, has been experiencing ecological stress.
Large areas of the surface are now covered in dense mats of invasive salvinia and water hyacinth, which suffocate aquatic life and prevent sunlight from reaching the water column. Furthermore, those who live near the dam claim that their concerns about the condition of the water are growing.
Posts on social media showing heaps of dead fish sparked fury and prompted demands for more vigorous government action. With the upcoming hectic holiday season, local tourism operators worry that frequent pollution events might discourage tourists.
Authorities Call for Vigilance
Residents are urged by Magalies Water to report any more fish fatalities right away, along with images or videos and exact locations. According to Magae, “The sooner we receive reports, the better we can respond and identify the causes.”
The DWS confirmed that it is keeping a close watch on the issue and has reaffirmed its commitment to long-term rehabilitation initiatives meant to manage invasive species and lower nitrogen fluxes from catchments upstream.
For now, authorities say the dam remains safe for limited recreational use, but continued monitoring will be essential in the coming weeks.
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