Comment by malfist

Looking at this: https://www.standardmethods.org/doi/10.2105/SMWW.2882.053:

> in streams it averages about 1 μg/L, and in groundwaters it is generally 100 μg/L

Seems like it's no more polluted than normal water. Somewhere in between groundwater and streams.

I dug up the actual results instead of an article about and article about an article talking about the lab results, they're here: https://www.documentcloud.org/documents/28055380-j2673-1-uds...

That earlier link is to the method they used for detection.