UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 

WASHINGTON, D.C. 20460 

OFFICE OF CHEMICAL SAFETY 

AND POLLUTION PREVENTION 

August 16, 2010 

MEMORANDUM

Subject: Aldicarb Phone & E-mail Correspondence between EPA & Bayer Crop-Science 

From: K. Avivah Jakob, Chemical Review Manager 

 Re-evaluation Managment and Implimentation Branch IV 

 Pestcide Re-evaulation Division (7508P) 

Minutes: 

The Environmental Protection Agency’s (EPA) Office of Pesticide Programs (OPP) has recently 

completed a revised acute probabilistic aggregate dietary (food and drinking water) exposure and 

risk assessment for aldicarb. The revised 2010 risk assessment is based on comparative 

cholinesterase assay (CCA) and new food and residue data which were recently submitted to the 

Agency. EPA’s revised dietary exposure and risk assessment indicates that aldicarb no longer 

meets the Agency’s rigorous food safety standards and may pose unacceptable dietary risks, 

especially to infants and young children. 

EPA corresponded with the technical registrant of aldicarb, Bayer Crop-Science, via telephone 

and E-MAIL on the dates provided below. During these correspondences, EPA and the 

registrant discussed possible options to address the dietary risks of concern identified in the 

revised 2010 dietary risk assessment. The purpose of these correspondences was to develop an 

approach that would fully mitigate all identified dietary risks of concern. 

DATE & 

CORRESPONDANCE FORM 

PARTCIPANTS 

7/8/10 PHONE EPA: Anne Overstreet, Avivah Jakob 

BCS: Larry Hodges 

7/13/10 PHONE EPA: Anne Overstreet 

BCS: Larry Hodges 

7/13/10 E-MAIL From: Anne Overstreet (EPA) 

To: Larry Hodges (BCS) 

Cc: Robert McNally, Avivah Jakob (EPA) 

7/14/10 PHONE 

 

EPA: Anne Overstreet 

BCS: Larry Hodges 

7/15/10 E-MAIL 

 

From: Anne Overstreet (EPA) 

To: Larry Hodges (BCS) 

Cc: Rick Keigwin, Avivah Jakob, Laurel Celeste (EPA) 

7/16/10 PHONE EPA: Anne Overstreet 

BCS: Larry Hodges 

7/16/10 E-MAIL From: Anne Overstreet (EPA) 
DATE & 

CORRESPONDANCE FORM 

PARTCIPANTS 

To: Larry Hodges (BCS) 

Cc: Avivah Jakob, Richard Keigwin (EPA) 

7/16/10 PHONE 

 

EPA: Steven Bradbury, Richard Keigwin, Anne Overstreet 

BCS: William Buckner, Peg Cherney 

7/19/10 PHONE EPA: Anne Overstreet 

BCS: Larry Hodges 

7/19/10 E-MAIL From: Larry Hodges (BCS) 

To: Anne Overstreet (EPA) 

Cc: Iain Kelly, Peg Cherny (BCS) 

7/19/10. E-MAIL From: Anne Overstreet (EPA) 

To: Iain Kelly, Peg Cherny (BCS); Avivah Jakob (EPA) 

7/21/10 PHONE EPA: Anne Overstreet, Avivah Jakob, Marianne Mannix 

BCS: Iain Kelly 

7/21/10 E-MAIL From: Anne Overstreet (EPA) 

To: Iain Kelly (BCS) 

Cc. Avivah Jakob (EPA) 

7/23/10 E-MAIL From: Anne Overstreet (EPA) 

To: Peg Cherny, Larry Hodges, Iain Kelly (BCS) 

Cc: Laurel Celeste, Richard Keigwin, Avivah Jakob, Robert McNally (EPA) 

7/2710 E-MAIL From: Anne Overstreet 

To: Peg Cherny (BCS) 

Cc: Iain Kelly, Larry Hodges (BCS); Richard Keigwin, Robert McNally, 

Avivah Jakob, Laurel Celeste (EPA) 

7/27/10 E-MAIL From: Iain Kelly (BCS) 

To: Anne Overstreet (EPA) 

Cc: Larry Hodges, Peg Cherny (BCS); Richard Keigwin, Robert McNally, 

Avivah Jakob (EPA) 

7/28/10 E-MAIL From: Anne Overstreet (EPA) 

To: Iain Kelly (BCS) 

Cc: Larry Hodges, Peg Cherny (BCS); Richard Keigwin, Robert McNally, 

Laurel Celeste, Avivah Jakob (EPA) 

7/30/10 E-MAIL From: Larry Hodges (BCS) 

To: Anne Overstreet 

Cc: Peg Cherny (BCS); Avivah Jakob (EPA) 

8/4/10 PHONE EPA: Anne Overstreet 

BCS: Larry Hodges 

8/4/10 E-MAIL From: Anne Overstreet (EPA) 

To: Larry Hodges (BCS) 

Cc: Avivah Jakob (EPA) 

8/4/10 PHONE EPA: Anne Overstreet, Avivah Jakob 

BCS: Larry Hodges, Iain Kelly, Lee Hall, Ralph Bagdwell 

8/4/10 PHONE 

 

EPA: Anne Overstreet 

BCS: Larry Hodges 

8/5/10 E-MAIL From: Anne Overstreet (EPA) 

To: Larry Hodges (BCS) 

Cc: Richard Keigwin, Robert McNally, Avivah Jakob (EPA) 

8/5/10 PHONE EPA: Anne Overstreet, Avivah Jakob, Marianne Mannix 

BCS: Larry Hodges, Iain Kelly 

8/6/10 PHONE EPA: Anne Overstreet 

BCS: Larry Hodges 

8/9/10 PHONE EPA: Anne Overstreet, Avivah Jakob 

BCS: Larry Hodges 

8/9/10 E-MAIL From: Larry Hodges (BCS) 
DATE & 

CORRESPONDANCE FORM 

PARTCIPANTS 

To: Anne Overstreet (EPA) 

Cc. Avivah Jakob (EPA) 

8/10/10 PHONE EPA: Anne Overstreet 

BCS: Larry Hodges 

8/11/10 E-MAIL From: Larry Hodges (BCS) 

To: Anne Overstreet (EPA) 

Cc: Avivah Jakob (EPA) 

8/12/10 PHONE EPA: Anne Overstreet 

BCS: Larry Hodges 

8/13/10 PHONE EPA: Anne Overstreet 

BCS: Larry Hodges 

8/13/10 PHONE EPA: Anne Overstreet, Avivah Jakob, Carol Stangel 

BCS: Larry Hodges, Jack Boin, Alan Ayers 

8/16/10 PHONE EPA: Anne Overstreet, Avivah Jakob, Laurel Celeste, Richard Keigwin 

BCS: Larry Hodges, Peg Cherny, Bill Ferguson, Al Luke, Alan Ayres 

*BCS = Bayer Crop-Science 

*EPA = Environmental Protection Agency