Spinach, mushroom results reported by SF Examiner

The SF Examiner article below states:

"The new results confirm similar data from UC Berkeley’s Department of Engineering, which recently found cases in which milk, creek water, potable water and spinach and mushrooms carried traces of the radioactive isotope."

http://www.sfexaminer.com/local/bay-area/2011/04/radiation-bay-area-rain...

Is this the nuclear engineering group or another group, and do you know where the results are posted?

Thanks!