"Sugar Pine Canyon Cr. near Redding, CA has over 4,600,000 ug/l of aluminum in two tests, upper and lower areas of the watershed." (Francis Mangels)
http://uncensored.co.nz/2011/03/07/chemtrail-lab-reports/#comments

Further source: Francis Mangels, Scientist, Bachelor’s in Forestry, Masters in Zoology
http://globalskywatch.com/chemtrails/ubbthreads.php?ubb=showflat&Number=8622#Post8622

And: http://globalskywatch.com/reference/chemtrails-geoengineering/Francis-Mangels-Observations.html