UPL says polluted water overflow diluted by heavy rains in KZN
Chemical company insists spill from control dam ‘extremely diluted’
12 April 2022 - 19:02
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Firefighters battled the blaze for 10 days after it gutted the warehouse and burnt thousands of tons of chemicals. Picture: THEO JAPHTA
Chemical company UPL SA says it is taking measures after heavy rain caused an overflow from its control dam that contains polluted water from the toxic spill during last year’s unrest.
The company’s warehouse in Cornubia, north of Durban, was set alight during the unrest in July 2021 resulting in the chemical disaster.
“UPL repurposed an existing storm water control dam below the facility into a pollution control dam (PCD). UPL appointed independent specialists who have been carefully managing the levels of polluted water in the PCD.
“Testing had indicated that the recent levels of metals and contaminants of concern in the PCD were sufficiently low to permit a variety of discharge options, including slow release into the river environment,” said UPL spokesperson Japhet Ncube.
“The heavy rains over the weekend and continuing into last night [Monday] have, however, created an unprecedented volume of storm water in the PCD catchment, and its levels have rapidly risen from empty to extremely high.
“In response to this threat, UPL had resumed extraction to tankers and the specialist team implemented systems to reduce the volume of rainwater entering the PCD. Despite these interventions, due to ongoing heavy rainfall the PCD still overtopped — water flowed over the edge.”
Ncube said UPL’s specialists consider “that the storm water emanating from areas of the catchment at present is in such volumes that residual contaminants, already at low levels, will be extremely diluted.
“UPL’s consultants have advised that at those concentrations, they will be of minimal concern. Further, they will be diluted again when they mix with the tributary and river floodwater, and ultimately discharge into the sea. Analytical sampling has been undertaken and continues to be undertaken to verify these assessments.”
Support our award-winning journalism. The Premium package (digital only) is R30 for the first month and thereafter you pay R129 p/m now ad-free for all subscribers.
UPL says polluted water overflow diluted by heavy rains in KZN
Chemical company insists spill from control dam ‘extremely diluted’
Chemical company UPL SA says it is taking measures after heavy rain caused an overflow from its control dam that contains polluted water from the toxic spill during last year’s unrest.
The company’s warehouse in Cornubia, north of Durban, was set alight during the unrest in July 2021 resulting in the chemical disaster.
“UPL repurposed an existing storm water control dam below the facility into a pollution control dam (PCD). UPL appointed independent specialists who have been carefully managing the levels of polluted water in the PCD.
“Testing had indicated that the recent levels of metals and contaminants of concern in the PCD were sufficiently low to permit a variety of discharge options, including slow release into the river environment,” said UPL spokesperson Japhet Ncube.
“The heavy rains over the weekend and continuing into last night [Monday] have, however, created an unprecedented volume of storm water in the PCD catchment, and its levels have rapidly risen from empty to extremely high.
“In response to this threat, UPL had resumed extraction to tankers and the specialist team implemented systems to reduce the volume of rainwater entering the PCD. Despite these interventions, due to ongoing heavy rainfall the PCD still overtopped — water flowed over the edge.”
Ncube said UPL’s specialists consider “that the storm water emanating from areas of the catchment at present is in such volumes that residual contaminants, already at low levels, will be extremely diluted.
“UPL’s consultants have advised that at those concentrations, they will be of minimal concern. Further, they will be diluted again when they mix with the tributary and river floodwater, and ultimately discharge into the sea. Analytical sampling has been undertaken and continues to be undertaken to verify these assessments.”
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