The accident occurred while fuel was being pumped from tanks located on the banks of the Ambarnaya river, following a major accident at a local power plant in late May that resulted in major environmental damage to the area.
According to RIA Novosti, the water-fuel mixture was being pumped through temporary pipelines, with the spill occurring due to workers forgetting "to close the sleeve when the pump was switched on."
The Norilsk-Taimyr Energy Company (NTEC), a Norilsk Nickel subsidiary, claims that the new spill has been localized. No more than 250 liters managed to escape from the pipes, according to the company.
Politekh, the company responsible for the clean-up, did not inform Rosprirodnadzor of its activities in the area, despite an order from President Vladimir Putin.
Due to the error, Rosprirodnadzor employees are not present at the site of the new spill, and will reportedly arrive on August 8.
A fuel tank collapsed at a combined heat and power plant (CHP) near the city of Norilsk on May 29, resulting in the spill of close to 21,000 metric tons of diesel into the ground surrounding the facility and several major rivers in the area, leading to a federal-level state of emergency and multiple criminal cases being opened against the company's employees and the mayor of Norilsk.
The plant is owned by NTEC, which manages Norilsk Nickel's energy assets in the Krasnoyarsk region. Company CEO Vladimir Potanin has vowed to clean up the pollution at the company's expense.
Russian environmental watchdog Rosprirodnadzor recently assessed the damage from the spill at 148 billion roubles (approximately $2.07 billion) – a record fine for Russia – and sent Norilsk Nickel a claim demanding voluntary compensation. The company is yet to pay out "a single rouble" in damages, according to the agency.