THE pumping machines vibrate noisily. A long black hose stretches out to two storage tanks, connecting to a tank truck loaded with diesel oil. Three men work feverishly operating the machines under the scorching sun.

After an hour the pumping machines are shut off. Oil spills drip from the end of the hose. Its such spills which over time have turned the ground on the 300-square-meter location pitch-black. Dozens of drums lie all over the place so