The Great Lakes aren't exactly the same as pristine aquifers suitable for drinking water...
https://www.usgs.gov/news/widespread-plastic-pollution-found..., https://www.safewater.org/fact-sheets-1/2017/1/23/the-great-... etc.
https://www.usgs.gov/news/widespread-plastic-pollution-found..., https://www.safewater.org/fact-sheets-1/2017/1/23/the-great-... etc.
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