Relive this moment in history: cleaning up 'The Blob' in Thunder Bay harbour

While government, industry and environmental groups continue to wrestle with historic water pollution in Lake Superior to this day, a number of large-scale efforts have already succeeded in cleaning up old hotspots.

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One of the most notorious was a large patch of creosote, PCBs and other toxic chemicals that sat in Thunder Bay harbour, just off the shore near the former site of Northern Wood Preservers.

That cocktail came to be known as 'The Blob.'

After decades of study, the mess was finally cleaned up in the late '90s and early-2000s, according to the Thunder Bay Remedial Action Plan.

Listen to Wayback With Matt to hear some of CBC's coverage of attempts made years ago to clean up 'The Blob' — the historic patch of toxic pollution in Lake Superior in Thunder Bay's harbour.