I haven't seen an answer yet to the question in my posting yesterday, so I assume no one noticed it. So I'll ask again, and rephrase it:

How much of the nitrate that is being removed from the Des Moines water supply originates from factory farms, and how much comes from farm field runoff from ammonium nitrate and other nitrate fertilizer applications?

Is it, say, 5% from factory farms and 95% from fertilizer applications other than hog manure? No, I'm not defending CAFOs. I just want to know.

Neila, maybe this is something you could research?

Thanks,

Tom

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - To unsubscribe from the IOWA-TOPICS list, send any message to: [log in to unmask] Check out our Listserv Lists support site for more information: http://www.sierraclub.org/lists/faq.asp Sign up to receive Sierra Club Insider, the flagship e-newsletter. Sent out twice a month, it features the Club's latest news and activities. Subscribe and view recent editions at http://www.sierraclub.org/insider/