I had a typo above and its too late to edit.

I meant the say the oil hypothesis does not seem to hold up with what I'm seeing here.

I would expect to see some faint difference on the surface of rain water but it looks perfectly normal.

BTW, I just got a hair test not too long ago and my Barium was in the normal range and my aluminum was slightly elevated but not high. I did have dangerous levels of lead, cadmium, and uranium though...