Here is the link unfortunately it's in spanish of course. It has dates on it referencing 2002 so should still be fairly accurate. (I think) haha

If you use google translate put this in the google web page translate tool bar (there's an annoying pop up but you can still read the whole report)

This is the first link

http://www.monografias.com/trabajos29/autorizacion-ambiental/autorizacion-ambiental.shtml

And page 2

http://www.monografias.com/trabajos29/autorizacion-ambiental/autorizacion-ambiental2.shtml

If you want to go directly to the spanish source and copy to another translator then put this link in your web bar.

http://www.monografias.com/trabajos29/autorizacion-ambiental/autorizacion-ambiental.shtml

It was much to large for me to do and post in a message hopefully this will help out on the permitting process in Peru.