1 Prometon Focus Meeting Summary

November 7 , 2012

1:00

– 2:00 pm

A ttendees

MANA : Kristen Knox and (via conference line) Elliot Gordon

Control Solutions, Inc. (via conference line) : Anne Turnbough

Environmental Protection Agency (EPA or Agency) : Kaitlin Keller (PRD), Tracy Perry (PRD), William Irwin (HED)

, Robin Sternberg (EFED), Steve Wente (EFED), Sujatha Sankula (EFED), Cynthia Doucoure (BEAD), John Faulkner (BEAD)

Objective

The purpose of the meeting was for members of the EPA ’s Pesticide Re

- evaluat ion Division (PRD)

, Environmental F ate and Effects Division (EFED) , Biological and Economic Analysis Division (BEAD), and Health Effects Division (HED) to meet with Mahkteshim Agan of North America (MANA), the technical registrant for prometon

, for the f ollowing reasons: 1) discuss

us age information needed for the reg istration review ecological risk assessment s
, and 2) discuss anticipated ecotoxicity and environmental fate data requirements and information that could be submitted to fulfill these data gap s.

Discussion

Use/Usage Information

CSI provided usage information in terms of amounts used in pounds per year, noting that this information can be broken down by product and will be submitted to the Agency with a complete summary of labels and use site s

. MANA confirmed that all residential use products have been cancelled, as required by the Reregistration Eligi bility Decision (RED). EPA has also received a FIFRA 6(f) request from MANA, dated October 4, 2012, to cancel all residential uses of
prometon on October 3, 2012, which will be published with a 30

- day comment period in th e Federal Register in December 2012

. EPA requested additional information on typical rates for each use scenario and the size of a typical spot treatment for various use sites, such as highway medians, fencerows, and airports. EPA noted that this information could help reduce conservative assumptions in the ecological risk assessments.

Environmental Fate and Effects Information EPA requested additional information on the deg radates of prometon, specifically how long they take to break down and any toxicity effects in the environment and/or any laboratory toxicity studies. MANA committed to reviewing their database and providing any available information

.

EPA also discussed a list of anticipated data gaps and explained some of the conservative methods, such as the acute

- to

- chronic ratio, that would be used if no additional data were

submitted

. MANA stated that European Union (EU) data is not available for this chemical and

all available st udies have already been submitted for the RED assessment . EPA suggested2 reviewing open literature and MANA’s database for information on other triazine herbicides, such as atrazine and simazine, for information which may be useful. EPA ag reed to review any proposals or waiver requests based on a rationale of low toxicity and/or bridging data used for

ot her triazine class herbicides. EPA requested any water monitoring data available. MANA was not aware of this information but agreed to su bmit any water monitoring data that they may find.

Follow

- up

• EPA will inform MANA when the 6(f) voluntary cancellation reques t for all prometon

residential uses publishes in the Federal Register.

• MAN A and CSI will submit use/usage and market share inform ation, as well as typical use rates and size of typical spot treatments.

• M ANA will review their scientific database and open literature sources for information

th at could fulfill current data gaps and respond to EPA with this information within three

weeks

.