From Scientific American:
CUNINICO, Peru – On the last day of June, Roger Mangía Vega watched an oil slick and a mass of dead fish float past this tiny Kukama Indian community and into the Marañón River, a major tributary of the Amazon.
Community leaders called the emergency number for Petroperu, the state-run operator of the 845-kilometer pipeline that pumps crude oil from the Amazon over the Andes Mountains to a port on Peru’s northern coast.
By late afternoon, Mangía and a handful of his neighbors – contracted by the company and wearing only ordinary clothing – were up to their necks in oily water, searching for a leak in the pipe. Villagers, who depend on fish for subsistence and income, estimated that they had seen between two and seven tons of dead fish floating in lagoons and littering the landscape.
“It was the most horrible thing I’ve seen in my life – the amount of oil, the huge number of dead fish and my Kukama brothers working without the necessary protection,” said Ander Ordóñez Mozombite, an environmental monitor for an indigenous community group called Acodecospat who visited the site a few days later.