July 1, 2011 

# BASF The Chemical Company U.S. Environmental Protection Agency Office of Chemical Safety and Pollution Prevention Office of Pesticide Programs Pesticide Re-evaluation Division (7508P) Front End Processing Desk 1200 Pennsylvania Avenue, NW Washington DC, 20460 Attention: Ms. Khue Nguyen Risk Management and Implementation Branch I, Chemical Review Manager 

### RE: Pendimethalin Information Submitted for Consideration During Consultation with NMFS Dear Ms. Nguyen: BASF Corporation received the EPA letter entitled "EPA Consultation with the National Marine Fisheries Service (NMFS) Regarding the Effects of the Pesticide Pendimethalin on Pacific Salmonids" dated March 3 2011. As an Applicant, BASF may submit information on Pendimethalin for consideration during the ESA consultation with NMFS. BASF is submitting the following information under cover of this letter: 

### 1) a BASF-compiled summary of all federally registered uses (crop and non-crop) for Pendimethalin (see file entitled "Pendimethalin_list of registered uses_NMFS consultation Jul201 l.pdf’) 

### 2) a data matrix for BASF’s Pendimethalin Technical, EPA Reg.No. 241-245, indicating all environmental fate and ecotoxicology data historically submitted by BASF in support of the registration of Pendimethalin (see file entitled "Pendimethalin Technical_241-245_Data Matrix Efate Ecotox_NMFS consultation Jul2011.pdf’) 3) four ecologically relevant studies conducted by BASF on Pendimethalin, not previously submitted to EPA, entitled: - BAS 455 H (pendimethalin, AC 92553): Zebra fish (Danio rerio), full life cycle test with sediment, static approach

- Bioacumulation of Pendimethalin (AC 92553) in the Benthic Oligochaete Tubifex tubifex

- Evaluation of Direct and Indirect Effects on Fish and Bioconcentration in Aquatic Organisms of 14C-labelled Pendimethalin (14C-URL-AC 92553) in Outdoor Pond Uesocosms

- Evaluation of Direct and Indirect Effects of 400 g/L SC Formulation (STOMP® 400) of Pendimethalin (AC 92553) on Aquatic Organisms in Outdoor Pond Mesocosms

BASF Corporation, Crop Protection, 26 Davis Drive, Research Triangle Park, North Carolina 27709-3528 telephone (919) 547-2000 l

### 4) 

# i,, ,, BASF The Chemical Company the most recently EPA-approved/accepted labels for BASF’s end-use products of Pendimethalin (both crop and non-crop) as follows:

- Prowl ® H20 herbicide, EPA Reg.No. 241-418 (crop uses)

- Prowl ® 3.3 EC herbicide, EPA Reg.No. 241-337 (crop uses)

- Pendulum ® AquaCap herbicide, EPA Reg.No. 241-416 (non-crop uses)

- Pendulum® 3.3 EC herbicide, EPA Reg.No. 241-341 (non-crop uses)

- Pendulum® 2G herbicide, EPA Reg.No. 241-375 (non-crop uses) Please find included with this letter a CD-ROM that contains the files of all the abovementioned information. BASF requires that EPA treats items #2 and #3 as confidential information/data and that EPA handles this information accordingly. A duplicate copy of the CD-ROM is also being sent under this cover letter to: Dr. Tony Hawkes National Marine Fisheries Service 510 Desmond Drive SE Suite 102 Lacey, WA 98503

Regards, Craig D. Kleppe, Ph.D. Product Registration Manager email craig.kleppe@basf.com, Tel 919-547-2615, Fax 919-547-2850 ® Registered Trademark of BASF

BASF Corporation, Crop Protection, 26 Davis Drive, Research Triangle Park, North Carolina 27709-3528 telephone (919) 547-2000