This is a couple of websites to give information on dealing with and the effort of preventing and tearing down dams.

http://www.sierraclub.org/ca/hetchhetchy/

http://www.hetchhetchy.org/

http://www.environmentaldefense.org/hetchhetchy/

This is background information that can be adapted and used.

I know that there are other places too, just research.

Teresa

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