Comment submitted by Dr. Brian Dementi, D.A.B.T.

Office of Pesticide Programs (OPP) Regulatory Public Docket (7520P) Environmental Protection Agency 1200 Pennsylvania Ave., NW. Washington, DC 20460-0001 Gentlemen, I am submitting the enclosed September 28, 2006 comments, addressed to Administrator Stephen Johnson, to the Organophosphate Cumulative Assessment [Docket ID: EPA-HQ-OPP-2006-0618], and to the Organophosphate Cumulative Risk Assessment; Notice of Availability [Document ID: EPA-2006-0618-0001] Also enclosed is a copy of a June 20, 2005 memorandum by me to Administrator Johnson, which is referenced in the above September 28, 2006, and thus is also being submitted via this letter to the same above specified Docket ID and Document ID designations. Indeed, with regard to the September 28 memorandum to Administrator Johnson, the June 20, 2005 memorandum should be viewed as an attachment. Sincerely, Brian Dementi Ph.D., D.A.B.T. 7519 Oakmont Drive Richmond, VA 23228