Here are a few of Cuyahoga River short videos for examples of what pollution can do to a river.

Cuyahoga River
The Return of the Cuyahoga River
Cuyahoga River Restoration

Here is one more video on what can happen to drinking water. Cryptosporidium is very resistant to chlorine so in order to kill it completely water supplies have to be hyperchlorinated, which means to add lots of chlorine. While that might work for a public pool it is not good for drinking water.

Cleaning Sediment (Potable = any liquid suitable for drinking.)

Read this webpage for some cool water pollution facts.

Water Pollution Facts

Draft a blog post to share what you learned from the videos you saw and/or the information you learned from the water pollution website. In your blog include one of the youtube videos to show what you are writing about.