Water pollution is defined as a change in the chemical, physical and biological health of a waterway due to human activity.

I do not think I have stated any falsehoods. If I have supply counter evidence, rather than just poo pooing me.

The reference to the great lakes was that it was a classic and very well known example of human pollution. And that was a main theme of the article.

The Silicon valley reference was to highlight the huge environmental impact of the high tech industry. That may be in North America, or India. If they have cleaned up the industry in recent times, then that is great, have they?