I can't seem to open the link, keep getting a message to close and reopen the browser window. Anyone else have this problem?
Try the
cached version It is good.
But its also weird

"Poop" is not the contamination of concern in an metropolitan urban creek
In the city I worry about chemicals, pesticides/fertilizer/household cleaners/petroleum... heavy metals
Also weird, is they don't appear to have contacted the manufacturers to see what they say about the lower reduction rates