Nicole Hancock January 25, 2017 Social Studies Inco Information Sheet, Sudbury Lakes Polluted by Mining, and Pollution Stats for Inco To Accompany A Case Study on Water Pollution in Canada Lesson Nicole Hancock January 25, 2017 Social Studies Approximately 19,000 lakes have been damaged by smelter emissions in the Sudbury area. Inco has several of its largest mining operations in and near Sudbury.