Amsterdam workers in a residential area within the Sloterdijk district this week found between 450 and 500 jerry cans filled with chemical waste created during the production of illegal drugs. The municipality spent much of Thursday and Friday collecting the large volume of chemical waste, up to 10,000 liters, found dumped into underground garbage bins.A police investigation is ongoing, according to local broadcaster AT5. The clean-up was expected to be completed by the end of Friday.