Atrazine Special Review Docket Emails Atrazine Special Review Docket Emails-Melanie Biscoe Melanie Biscoe Melanie Biscoe -February February February1to April to April to April13,2011

Melanie Biscoe Melanie Biscoe to: biscoe.melanie 04/19/2011 02:10 PM

----- Forwarded by Melanie Biscoe/DC/USEPA/US on 04/19/2011 11:47 AM -----

From: Melanie Biscoe/DC/USEPA/US

To: <dan.campbell@syngenta.com>

Date: 02/02/2011 09:28 AM

Subject: RE: Atrazine: AMP & SMP 2010 Data

Thanks, Dan! 

We really appreciate the work that went into timely submission of the spreadsheets .

If we could get the studies themselves via dropbox, that would be great. Just let me know what the 

access information is.

Glad to see your computer got fixed.

Thanks again!

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

Melanie - enclosed are the data from 2010 monit... 02/02/2011 07:36:18 AM

From: <dan.campbell@syngenta.com>

To: Melanie Biscoe/DC/USEPA/US@EPA

Date: 02/02/2011 07:36 AM

Subject: RE: Atrazine: AMP & SMP 2010 Data

Melanie - enclosed are the data from 2010 monitoring for both the AMP and SMP 

in excel worksheets.

Unfortunately, the studies are too large MB to e-mail. Let me know if you 

want to get them via CD or dropbox.

Thanks

Dan

Dan Campbell

Syngenta Crop Protection

Regulatory Affairs Team Lead, Herbicides

Phone (336) 632-7627

Mobile Phone (336) 509-5910
-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov [mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Tuesday, February 01, 2011 9:50 AM

To: Campbell Dan USGR

Subject: Atrazine: AMP & SMP 2010 Data

Hi Dan,

Just following up on the data for the AMP and SMP. Please send the

spreadsheet when you get a chance.

Also, if you have an electronic copy of the study submissions, please

email those as well.

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

message may contain confidential information. If you are not the designated 

recipient, please notify the sender immediately, and delete the original and 

any copies. Any use of the message by you is prohibited. 

----- Forwarded by Melanie Biscoe/DC/USEPA/US on 04/19/2011 11:47 AM -----

From: Melanie Biscoe/DC/USEPA/US

To: dan.campbell@syngenta.com

Date: 02/08/2011 04:56 PM

Subject: Atrazine: Follow-ups

Hi Dan,

I hope you're OK - not like you to drop off! 

Wanted to followup with the items below that I've asked about over the past week. I just left a VM on your 

cell, also. 

-------

1. Would Syngenta be available for an eco mitigation stakeholder call sometime the week of the 14th? 

Please let me know if there are any dates/times that week that wouldn't work.
2. With regard to "An Oral (Gavage and Dietary) Study Evaluating the Pharmacokinetics of Atrazine in 

Female Sprague-Dawley Rats_2.pdf." could Syngenta provide the spreadsheet (as opposed to PDF) for 

the data on pages 275 through 342?

3. Can you provide the dropbox info for the AMP and SMP submissions? 

4. Could we put the ecomonitoring data from 2009-2010 in the docket without a 10g restriction?

5. Regardless of your answer to question4, could we provide the 2009-2010 ecomonitoring data to the 

states? (Primarily making sure that the data for the specific sites in one state are available to that state 's 

Dept. of Ag & DEQ etc.) 

6. Could you send an update on the status of the well vulnerability study, and a revised timeframe as to 

when it could be completed?

-------

Please call or email about these when you're able.

Thanks!

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

----- Forwarded by Melanie Biscoe/DC/USEPA/US on 04/19/2011 11:47 AM -----

From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

To: Melanie Biscoe/DC/USEPA/US@EPA

Date: 02/25/2011 12:03 PM

Subject: RE: Atrazine /AMP data

Melanie, How are you? I'm still interested in receiving the 2010 data.

Is it available yet? Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov] 

Sent: Wednesday, January 05, 2011 11:50 AM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

Hi Ellis,

Thanks for your email and I will make sure that you receive the 2010 AMP

data as soon as possible.

(I will likely need to provide the data as an excel spreadsheet as

opposed to a PDF, however).

Best Regards,
Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 01/05/2011 10:15 AM

 Subject: RE: Atrazine /AMP data

Melanie, I hope you had a relaxing holiday. I just wanted to touch

base with you to confirm my interest in receiving the 2010 AMP data as

soon as it is available. Please forward the PDF to me when you receive

it. Thanks. Ellis Jacobs

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Friday, August 20, 2010 11:24 AM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

Currently the Agency does not typically receive data before that time,

unless there is an exceedence of the 37.5 ppb 90-day rolling average

level of concern, in which case (according to the MOA) Syngenta is

required to notify EPA within 30 days of the exceedence. To-date,

however, there have been no exceedences of this level of concern, so

this specific provision of the MOA has not yet come into play.

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106
 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 08/20/2010 11:20 AM

 Subject: RE: Atrazine /AMP data

Does EPA receive any of the Atrazine data before then? Even just

partial data? Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Friday, August 20, 2010 10:42 AM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

On January 31 each year.

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 08/20/2010 10:41 AM
 Subject: RE: Atrazine /AMP data

Melanie, When is the "study submission" submitted typically? Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Thursday, August 19, 2010 5:08 PM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

Hi Ellis,

As established by the 2003 Memorandum of Agreement between EPA and

Syngenta, one year's AMP (and SMP) data is due to the Agency on January

31 of the following year. However, we typically receive these data as a

study submission (in hard copy and as a PDF) and then in subsequent

weeks Syngenta sends the data in an excel spreadsheet. We received the

spreadsheets containing the 2009 data on March 3 of 2010. At the

present time, I would anticipate that the 2010 data you requested would

be available any time between the end of January and early March of

2011. If we do receive 2010 data at an earlier time, however, I will

let you know and provide the data that you requested.

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 08/19/2010 04:40 PM
 Subject: RE: Atrazine /AMP data

Melanie, When does the EPA receive this data? Weekly? Monthly? At the

end of each year? Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Thursday, August 19, 2010 3:45 PM

To: Jacobs, Ellis

Subject: Re: Atrazine /AMP data

Mr. Jacobs,

AMP data for 2010 are not yet available.

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 08/12/2010 04:43 PM

 Subject: Atrazine /AMP data

Melanie, I've been looking at the AMP data for Ohio. The data I'm

looking at runs through the end of 2009. Is more recent data available?
I don't need the full data set for 2010, just the data for three Ohio

towns- Blanchester, McClure Water treatment plant, and Piqua (Swift Run

Lake and finished). Thanks. Ellis Jacobs

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Thursday, June 24, 2010 9:17 AM

To: Jacobs, Ellis

Subject: 2001 Atrazine Drinking Water Assessment: Appendix B

See attached.

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

(See attached file: drinkingwater_b7.pdf)(See attached file:

drinkingwater_b6.pdf)(See attached file: drinkingwater_b5.pdf)(See

attached file: drinkingwater_b4.pdf)(See attached file:

drinkingwater_b3.pdf)(See attached file: drinkingwater_b2.pdf)(See

attached file: drinkingwater_b1.pdf)

----- Forwarded by Melanie Biscoe/DC/USEPA/US on 04/19/2011 11:47 AM -----

From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

To: Melanie Biscoe/DC/USEPA/US@EPA

Date: 03/01/2011 09:23 AM

Subject: RE: Atrazine /AMP data

Thanks.

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov] 

Sent: Monday, February 28, 2011 5:30 PM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

Hi Ellis,
I'm doing well and am, as I email, finalizing the data formatting so it

can go through clearance for docket posting. I will let you know as

soon as it is posted, which should be within 1 or 2 weeks.

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

To: Melanie Biscoe/DC/USEPA/US@EPA

Date: 02/25/2011 12:03 PM

Subject: RE: Atrazine /AMP data

Melanie, How are you? I'm still interested in receiving the 2010 data.

Is it available yet? Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Wednesday, January 05, 2011 11:50 AM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

Hi Ellis,

Thanks for your email and I will make sure that you receive the 2010 AMP

data as soon as possible.

(I will likely need to provide the data as an excel spreadsheet as

opposed to a PDF, however).

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>
 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 01/05/2011 10:15 AM

 Subject: RE: Atrazine /AMP data

Melanie, I hope you had a relaxing holiday. I just wanted to touch

base with you to confirm my interest in receiving the 2010 AMP data as

soon as it is available. Please forward the PDF to me when you receive

it. Thanks. Ellis Jacobs

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Friday, August 20, 2010 11:24 AM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

Currently the Agency does not typically receive data before that time,

unless there is an exceedence of the 37.5 ppb 90-day rolling average

level of concern, in which case (according to the MOA) Syngenta is

required to notify EPA within 30 days of the exceedence. To-date,

however, there have been no exceedences of this level of concern, so

this specific provision of the MOA has not yet come into play.

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 08/20/2010 11:20 AM
 Subject: RE: Atrazine /AMP data

Does EPA receive any of the Atrazine data before then? Even just

partial data? Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Friday, August 20, 2010 10:42 AM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

On January 31 each year.

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 08/20/2010 10:41 AM

 Subject: RE: Atrazine /AMP data

Melanie, When is the "study submission" submitted typically? Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]
Sent: Thursday, August 19, 2010 5:08 PM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

Hi Ellis,

As established by the 2003 Memorandum of Agreement between EPA and

Syngenta, one year's AMP (and SMP) data is due to the Agency on January

31 of the following year. However, we typically receive these data as a

study submission (in hard copy and as a PDF) and then in subsequent

weeks Syngenta sends the data in an excel spreadsheet. We received the

spreadsheets containing the 2009 data on March 3 of 2010. At the

present time, I would anticipate that the 2010 data you requested would

be available any time between the end of January and early March of

2011. If we do receive 2010 data at an earlier time, however, I will

let you know and provide the data that you requested.

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 08/19/2010 04:40 PM

 Subject: RE: Atrazine /AMP data

Melanie, When does the EPA receive this data? Weekly? Monthly? At the

end of each year? Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Thursday, August 19, 2010 3:45 PM

To: Jacobs, Ellis
Subject: Re: Atrazine /AMP data

Mr. Jacobs,

AMP data for 2010 are not yet available.

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 08/12/2010 04:43 PM

 Subject: Atrazine /AMP data

Melanie, I've been looking at the AMP data for Ohio. The data I'm

looking at runs through the end of 2009. Is more recent data available?

I don't need the full data set for 2010, just the data for three Ohio

towns- Blanchester, McClure Water treatment plant, and Piqua (Swift Run

Lake and finished). Thanks. Ellis Jacobs

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Thursday, June 24, 2010 9:17 AM

To: Jacobs, Ellis

Subject: 2001 Atrazine Drinking Water Assessment: Appendix B

See attached.

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)
Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

(See attached file: drinkingwater_b7.pdf)(See attached file:

drinkingwater_b6.pdf)(See attached file: drinkingwater_b5.pdf)(See

attached file: drinkingwater_b4.pdf)(See attached file:

drinkingwater_b3.pdf)(See attached file: drinkingwater_b2.pdf)(See

attached file: drinkingwater_b1.pdf)

----- Forwarded by Melanie Biscoe/DC/USEPA/US on 04/19/2011 11:47 AM -----

From: "Laura Lorenzo" <lauralorenzo@consejeria-usa.org>

To: Melanie Biscoe/DC/USEPA/US@EPA

Cc: Kristen Hendricks/DC/USEPA/US@EPA

Date: 03/21/2011 04:54 PM

Subject: RE: Pesticide Questions Follow-up: Atrazine & Uses on Parsley, Oregano, and Lettuce

Dear Melanie and Kristen,

Thank you very much for your help. It was extremely useful. I have

transmitted all this knowledge to the requesting person.

Best regards,

Laura M. Lorenzo

Office of Agricultural Affairs

1600 New Hampshire Ave. NW

Washington D.C. 20009

Tel: 202-238-6443

Fax: 202-332-1324

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov [mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Monday, March 21, 2011 3:45 PM

To: Laura Lorenzo

Cc: Hendricks.Kristen@epamail.epa.gov

Subject: Pesticide Questions Follow-up: Atrazine & Uses on Parsley, Oregano,

and Lettuce
Hi Laura,

With regard to atrazine label precautions in the US, I've attached two

labels from products sold and used in the US. One label is for an

emulsifiable concentrate (liquid) and one is a water dispersible

granule. (I've included both because they are different formulations

that have different allowable application methods, both of which result

in different worker protection requirements). .As indicated by its

conclusions in its regulatory documents and statements on its websites,

EPA is primarily concerned with reducing human and environmental

exposures to atrazine in water because atrazine does not readily adsorp

onto soil and, as a consequence, is prone to running off fields into

water bodies when it rains. Such contamination can impact aquatic

ecosystems, drinking water sources, or both. To that end, many of the

use restrictions you'll find on the atrazine labels involve setbacks

from waterbodies, wellheads, drainage outlets, etc. Additionally, the

labels specify a lower rate for pre-plant application when soils are

"highly erodable." Atrazine is also a Restricted Use Product (RUP),

which requires that atrazine applicators be certified. If you have any

questions or concerns regarding any particular label language for

atrazine, please let me know.

(See attached file: Jan-25-2010 AATREX NINE-0 Herbicide - Water

Dispersible Granules.tif)(See attached file: May-1-2009 AATREX 4L

Herbicide - Emulsifiable Concentrate.tif)

With regard to pesticides that can be used on parsley, oregano, and

lettuce in the US, generally growers often work with their local

cooperative extension agent to determine what products are appropriate

for particular pests in that area. Additionally, states often have

their own use restrictions, so some products that are used on one state

may not be allowed for use in another. The USDA's Cooperative Extension

System does have a website so growers can readily contact their

extension agent (http://www.csrees.usda.gov/Extension/) but does not

seem to have a list of products, generally, that can be used on an

individual crop or commodity.

Given that there's not a readily-available online "go-to" source for

this information, the second-best source of information is to look at

the US tolerances for parsley, oregano, and lettuce. I've compiled them

in the spreadsheet below. The tolerance listings are indicative of what

is or what used to be used on these products in the US. For example,

there is a tolerance for lindane on lettuce even though lindane has been

cancelled in the US for several years. Additionally, uses of

azinphos-methyl and endosulfan are being phased out but still have

tolerances. If there are any specific pesticide products on this list

for which you'd like to know the actual registration status in the US,

you can go to the US Code of Federal Regulations website's "simple

search" webpage:

http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?sid=cff737be0635de1c6ea34a334c

513e33&c=ecfr&page=simple

and where it says "Enter a Title Number" type in: 40

where it says "Search for" type in: the chemical name (for example,

endosulfan)

That should bring up listings of US decisions on that particular
chemical (or specific products associated with that chemical), so you

can see whether the chemical is registered in the US.

That said, if you still feel as though you need the listing of chemicals

used on parsley, oregano and lettuce (as opposed to the tolerances)

please let Kristen of I know and we can see if it's possible to get more

targeted information through another division of our office.

(See attached file: 3-21-11 US Tolerances for Parsley Oregano &

Lettuce.xlsx)

I hope this helps. If you have any additional questions, concerns, or

requests, just let me know.

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

----- Forwarded by Melanie Biscoe/DC/USEPA/US on 04/19/2011 11:47 AM -----

From: "Bruce Jacobs" <bljacobs@rcn.com>

To: Melanie Biscoe/DC/USEPA/US@EPA

Date: 03/25/2011 12:21 PM

Subject: RE: Atrazine: 2002 Risk Assessments & Rural Well Survey

Thank you very much. This is extremely helpful.

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov [mailto:Biscoe.Melanie@epamail.epa.gov] 

Sent: Friday, March 25, 2011 11:41 AM

To: bljacobs@rcn.com

Subject: Atrazine: 2002 Risk Assessments & Rural Well Survey

Mr. Jacobs,

Thanks again for your email. Attached are EPA's revised risk assessments for 

atrazine from 2002 that supported the 2003 reregistration decision. The 

"Special Docket" has additional documents related to these risk assessments. 

I suggest that before you read these go ahead and request the whole DVD using 

the instructions in the docket so if you come across a reference in the 

revised assessments below you can have the information readily available 

through that DVD.

(See attached file: hed_redchap_16apr02.pdf)(See attached file:

efed_redchap_22apr02.pdf)

With regard to rural wells, acute exposures to atrazine and the chlorinated 

metabolites in drinking water from rural wells do not exceed the Agency’s LOC. 

However, the Agency has some concerns for potential chronic exposures of 

infants and children drawing drinking water from rural wells located directly 

in atrazine use areas, i.e., adjacent to fields where atrazine was used. 
Current atrazine products contain requirements that are intended to prevent

contamination of residential wells. Based on the limited available well 

monitoring data only 8 of

1505 wells sample had levels of atrazine that exceeded the level of concern. 

The 1505 wells monitored were selected based on their location in areas with 

high atrazine use. These 8 wells were subsequently resampled and all 

concentrations of atrazine and the chlorinated metabolites were less than the 

Agency’s LOC. Although the data indicate that levels are decreasing in these 

wells over time, to be protective of infants using private rural wells in 

close proximity to atrazine use areas, the Agency required the registrant to 

conduct a study to identify characteristics that are predictive of the 

potential vulnerability of a rural well to atrazine contamination. EPA 

expects to receive this study by summer 2011 and will review it to see if 

additional monitoring data are needed or if conclusions can be drawn.

If you have any additional questions or requests please let me know.

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV) Pesticide Re-evaluation 

Division (PRD) Office of Pesticide Programs (OPP) biscoe.melanie@epa.gov

703-305-7106

From: "Bruce Jacobs" <bljacobs@rcn.com>

To: Melanie Biscoe/DC/USEPA/US@EPA

Date: 03/24/2011 10:40 AM

Subject: Atrazine Rural Well Survey

Ms. Biscoe,

Is there any information on the Rural Well Survey that was to be conducted 

under the atrazine IRED? There does not seem to be any mention of it on the 

atrazine reregistration web page ( 

http://www.epa.gov/pesticides/reregistration/atrazine/index.htm).

Bruce Jacobs

617-731-3610

----- Forwarded by Melanie Biscoe/DC/USEPA/US on 04/19/2011 11:47 AM -----

From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

To: Melanie Biscoe/DC/USEPA/US@EPA

Date: 03/29/2011 10:32 AM

Subject: RE: Atrazine /AMP data

Thanks. Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov] 

Sent: Monday, March 28, 2011 5:25 PM
To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

Ellis,

I just wanted to let you know that the Office of Pesticide Programs'

Atrazine Updates Website has been updated to include 2010 Atrazine and

Simazine Monitoring Program Data. Please see the following link:

http://www.epa.gov/opp00001/reregistration/atrazine/atrazine_update.htm

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

To: Melanie Biscoe/DC/USEPA/US@EPA

Date: 03/01/2011 09:23 AM

Subject: RE: Atrazine /AMP data

Thanks.

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Monday, February 28, 2011 5:30 PM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

Hi Ellis,

I'm doing well and am, as I email, finalizing the data formatting so it

can go through clearance for docket posting. I will let you know as

soon as it is posted, which should be within 1 or 2 weeks.

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106
From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

To: Melanie Biscoe/DC/USEPA/US@EPA

Date: 02/25/2011 12:03 PM

Subject: RE: Atrazine /AMP data

Melanie, How are you? I'm still interested in receiving the 2010 data.

Is it available yet? Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Wednesday, January 05, 2011 11:50 AM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

Hi Ellis,

Thanks for your email and I will make sure that you receive the 2010 AMP

data as soon as possible.

(I will likely need to provide the data as an excel spreadsheet as

opposed to a PDF, however).

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 01/05/2011 10:15 AM

 Subject: RE: Atrazine /AMP data
Melanie, I hope you had a relaxing holiday. I just wanted to touch

base with you to confirm my interest in receiving the 2010 AMP data as

soon as it is available. Please forward the PDF to me when you receive

it. Thanks. Ellis Jacobs

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Friday, August 20, 2010 11:24 AM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

Currently the Agency does not typically receive data before that time,

unless there is an exceedence of the 37.5 ppb 90-day rolling average

level of concern, in which case (according to the MOA) Syngenta is

required to notify EPA within 30 days of the exceedence. To-date,

however, there have been no exceedences of this level of concern, so

this specific provision of the MOA has not yet come into play.

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 08/20/2010 11:20 AM

 Subject: RE: Atrazine /AMP data

Does EPA receive any of the Atrazine data before then? Even just

partial data? Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Friday, August 20, 2010 10:42 AM
To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

On January 31 each year.

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 08/20/2010 10:41 AM

 Subject: RE: Atrazine /AMP data

Melanie, When is the "study submission" submitted typically? Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Thursday, August 19, 2010 5:08 PM

To: Jacobs, Ellis

Subject: RE: Atrazine /AMP data

Hi Ellis,

As established by the 2003 Memorandum of Agreement between EPA and

Syngenta, one year's AMP (and SMP) data is due to the Agency on January

31 of the following year. However, we typically receive these data as a

study submission (in hard copy and as a PDF) and then in subsequent

weeks Syngenta sends the data in an excel spreadsheet. We received the

spreadsheets containing the 2009 data on March 3 of 2010. At the

present time, I would anticipate that the 2010 data you requested would

be available any time between the end of January and early March of

2011. If we do receive 2010 data at an earlier time, however, I will

let you know and provide the data that you requested.
Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 08/19/2010 04:40 PM

 Subject: RE: Atrazine /AMP data

Melanie, When does the EPA receive this data? Weekly? Monthly? At the

end of each year? Ellis

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Thursday, August 19, 2010 3:45 PM

To: Jacobs, Ellis

Subject: Re: Atrazine /AMP data

Mr. Jacobs,

AMP data for 2010 are not yet available.

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106
 From: "Jacobs, Ellis" <ejacobs@ablelaw.org>

 To: Melanie Biscoe/DC/USEPA/US@EPA

 Date: 08/12/2010 04:43 PM

 Subject: Atrazine /AMP data

Melanie, I've been looking at the AMP data for Ohio. The data I'm

looking at runs through the end of 2009. Is more recent data available?

I don't need the full data set for 2010, just the data for three Ohio

towns- Blanchester, McClure Water treatment plant, and Piqua (Swift Run

Lake and finished). Thanks. Ellis Jacobs

-----Original Message-----

From: Biscoe.Melanie@epamail.epa.gov

[mailto:Biscoe.Melanie@epamail.epa.gov]

Sent: Thursday, June 24, 2010 9:17 AM

To: Jacobs, Ellis

Subject: 2001 Atrazine Drinking Water Assessment: Appendix B

See attached.

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

(See attached file: drinkingwater_b7.pdf)(See attached file:

drinkingwater_b6.pdf)(See attached file: drinkingwater_b5.pdf)(See

attached file: drinkingwater_b4.pdf)(See attached file:

drinkingwater_b3.pdf)(See attached file: drinkingwater_b2.pdf)(See

attached file: drinkingwater_b1.pdf)
----- Forwarded by Melanie Biscoe/DC/USEPA/US on 04/19/2011 11:47 AM -----

From: <dan.campbell@syngenta.com>

To: Melanie Biscoe/DC/USEPA/US@EPA

Date: 04/01/2011 02:20 PM

Subject: Submission of 2010 Atrazine & Simazine SWDA reviews

Hello Melanie – Happy Friday.

Enclosed are pdf’s of the submission we made today to fulfill a requirement of the atrazine MOA and 

the simazine RED, appendix J.

Thanks!

Dan

Dan Campbell

Syngenta Crop Protection

Regulatory Affairs Team Lead, Herbicides

Phone (336) 632-7627

Mobile Phone (336) 509-5910

This message may contain confidential information. If you are not the designated recipient, please notify the sender immediately, 

and delete the original and any copies. Any use of the message by you is prohibited.

----- Forwarded by Melanie Biscoe/DC/USEPA/US on 04/19/2011 11:46 AM -----

From: Melanie Biscoe/DC/USEPA/US

To: Dashka Slater <dashkaslater@gmail.com>

Cc: Dale Kemery/DC/USEPA/US@EPA

Date: 04/11/2011 08:58 AM

Subject: Re: Atrazine Monitoring Data
Hi Dashka,

Thanks for your email. Attached are the files containing 2010 drinking water monitoring data for the 

Atrazine and Simazine Monitoring Programs. 

I checked the website and regulations.gov and the files seem to be downloading properly with all the data, 

but I apologize for any issues you may have had with this. 

Note that atrazine concentrations are measured in parts per billion (ppb), as indicated on the metadata 

worksheet in each file.

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

Dashka Slater Dear Melanie, I am looking for the data from the... 04/10/2011 05:56:19 PM

From: Dashka Slater <dashkaslater@gmail.com>

To: Melanie Biscoe/DC/USEPA/US@EPA

Date: 04/10/2011 05:56 PM

Subject: Atrazine Monitoring Data

Dear Melanie,

I am looking for the data from the 2010 Monitoring Program -- actual figures on amounts of 

atrazine measured in 2010 as part of the water monitoring agreement. The file on the website did 

not seem to have the data in it. Can you please send it to me?

Much appreciated,

Dashka Slater

Mother Jones Magazine

-- 

----- Forwarded by Melanie Biscoe/DC/USEPA/US on 04/19/2011 11:46 AM -----

From: Melanie Biscoe/DC/USEPA/US

To: "Jessica L. Poppe" <Jessica.Poppe@tufts.edu>

Date: 04/13/2011 02:16 PM
Subject: Re: Atrazine Questions for EPA Office of Pesticide Programs

Hi Jessica,

Attached are answers to the questions you posed to the Office of Pesticide Programs back in March . 

We've worked with EPA's Office of Water in drafting these answers.

We appreciate your interest in the complex issues surrounding atrazine . If there's anything else you need, 

just let me know.

Best Regards,

Melanie Biscoe

Chemical Review Manager

Risk Management and Implementation Branch IV (RMIB IV)

Pesticide Re-evaluation Division (PRD)

Office of Pesticide Programs (OPP)

biscoe.melanie@epa.gov

703-305-7106

"Jessica L. Poppe" Dear Ms. Biscoe, I was wondering if you were a... 03/30/2011 08:38:25 AM

From: "Jessica L. Poppe" <Jessica.Poppe@tufts.edu>

To: Melanie Biscoe/DC/USEPA/US@EPA

Date: 03/30/2011 08:38 AM

Subject: Re: Atrazine Questions for EPA Office of Pesticide Programs

Dear Ms. Biscoe,

I was wondering if you were able to pull together some answers for my 

other questions about atrazine in drinking water and pregnant women? I 

am still currently working on my project, although I am now focused on 

the risk management aspects of atrazine. If possible, do you think you 

could find the answer to the following two questions? I really 

appreciate your help with everything!

Question One: Is the EPA is involved in any health education practices 

to inform the public about atrazine in drinking water? Have there been 

efforts to educate the public in the communities found with elevated 

levels of atrazine in their drinking water?

Question Two: What types of control does the EPA endorse (at the 

source, along the path, and at a personal level) in order to limit the 

levels of atrazine exposure through drinking water?

Again, thank you so much for your time and help!

Jessica Poppe

jessica.poppe@tufts.edu

978-844-1511
Quoting Biscoe.Melanie@epamail.epa.gov:

> Jessica,

>

> We have the first two of your questions answered (see below). We're

> working on the others, some of which may not be ready until next week

> since most of our toxicologists are at a toxicology conference this

> week. I'll provide you the answers I have as they're finalized. Also,

> note that a lot of good contextual information about the Office of

> Pesticide Programs' atrazine regulation from 2003 to the present can be

> found on the Office of Pesticide Program's Atrazine and Atrazine Updates

> Websites (links are below). I hope these may be helpful to you in the

> meantime.

> OPP Atrazine Website:

> http://www.epa.gov/opp00001/reregistration/atrazine/

> OPP Atrazine Updates Website:

> http://www.epa.gov/opp00001/reregistration/atrazine/atrazine_update.htm

>

> ----------------------

>

> Question 1. At what stage in the process is the reevaluation of

> atrazine at currently?

>

> In 2010, EPA held three Federal Insecticide, Fungicide, and Rodenticide

> Act (FIFRA) Scientific Advisory Panel (SAP) meetings on human health

> issues related to atrazine. In February, EPA presented and sought

> scientific peer review of its proposed plan for incorporating

> epidemiology studies into the atrazine risk assessment. Later, in

> April, EPA presented and sought scientific peer review of its evaluation

> of atrazine effects based on experimental laboratory studies that will

> inform the selection of endpoints and safety factors in the risk

> assessment, and the sampling design used to monitor drinking water in

> community water systems. In September, EPA presented and sought

> scientific peer review of its evaluation of atrazine non-cancer effects

> based on experimental laboratory studies and epidemiology studies. The

> September review was intended to include any new experimental laboratory

> data since the April 2010 SAP meeting.

>

>

> This summer, EPA plans to hold another SAP meeting concerning the

> Agricultural Health Study findings as well as epidemiology and

> laboratory animal studies on atrazine. At the conclusion of this

> evaluation of atrazine?s human health effects, EPA plans to ask the SAP

> to review atrazine?s potential effects on amphibians and aquatic

> ecosystems.

>

>

> After this extensive review of atrazine, EPA plans to make any needed

> risk management decisions. These decisions will be consistent with the

> science and our pesticide statutes.

>

>

>

> Question 2. Where there any studies or research in particular 

that

> prompted the reevaluation or are playing a particularly important

> role in the reevaluation?

>

>

> EPA did not base its decision to formalize the re-evaluation process on
> the results of any one study. Over the last 8 years since the 2003

> Atrazine Interim Reregistration Eligibility Decision (IRED) was

> completed, significant atrazine research has been done. Moreover, EPA

> has received an extensive amount of drinking water and ambient surface

> water monitoring data from the registrants of atrazine, as an ongoing

> condition of reregistration. As part of the 2010 SAP reviews, EPA

> evaluated close to 150 studies published since 2003 investigating a wide

> array of potential cancer and non-cancer effects relevant to human

> health risk assessment. If you are interested in reading EPA?s reviews

> of these studies, as well as the meeting transcripts and the SAP?s

> recommendations, you may visit the Agency's 2010 SAP Meetings Web page,

> http://www.epa.gov/scipoly/sap/meetings/2010/index.html.

>

>

> ----------------------

>

>

> Best Regards,

>

> Melanie Biscoe

> Chemical Review Manager

> Risk Management and Implementation Branch IV (RMIB IV)

> Pesticide Re-evaluation Division (PRD)

> Office of Pesticide Programs (OPP)

> biscoe.melanie@epa.gov

> 703-305-7106

>

>

>

>

>

> From: "Jessica L. Poppe" <Jessica.Poppe@tufts.edu>

> To: Melanie Biscoe/DC/USEPA/US@EPA

> Date: 03/04/2011 08:44 AM

> Subject: Re: Atrazine Questions for EPA Office of Pesticide Programs

>

>

>

> Dear Ms. Biscoe,

>

> Thank you for helping me with my questions! Unfortunately the deadline

> of my paper just got moved up to next Tuesday (March 8th), so any

> information I could receive by that date would be very helpful. I

> realize that this is short notice, so I understand if you won't be able

> to respond in time. I would still be very interested in the responses

> past the deadline, as I will be writing two additional papers on the

> risk management of atrazine in drinking water in the next several

> months.

>

> An additional question that I have, regarding the risk management of

> atrazine in drinking water, is whether the EPA is involved in any

> health education practices in the communities found with elevated

> levels of atrazine in their drinking water?

>

> Thank you so much for your help and your time - I really appreciate it!

>

> Jessica Poppe

> jessica.poppe@tufts.edu

>

>

>
>

> Quoting Biscoe.Melanie@epamail.epa.gov:

>

>>

>> Hi Jessica,

>>

>> I'm the Chemical Review Manager for Atrazine in the Office of

> Pesticide

>> Programs (OPP). I've heard from my colleagues in the science

> divisions

>> here in OPP that you've contacted them and have questions about the

>> atrazine re-evaluation and atrazine issues related to pregnant women.

>>

>> I'm going to be coordinating the responses to your questions from OPP.

>> I received the list of questions you sent to Anna Lowit; please let me

>> know if there are any additional questions you'd like us to answer

> apart

>> from those.

>>

>> I anticipate that we'd be able to get back to you on all your

> questions

>> by the end of next week, but it would still be helpful to us if you

>> could tell us what your deadline is for needing our response.

>>

>> I look forward to hearing from you with regard to any additional

>> questions and your deadline.

>>

>> Best Regards,

>>

>> Melanie Biscoe

>> Chemical Review Manager

>> Risk Management and Implementation Branch IV (RMIB IV)

>> Pesticide Re-evaluation Division (PRD)

>> Office of Pesticide Programs (OPP)

>> biscoe.melanie@epa.gov

>> 703-305-7106

>>

>>

>>

>

>

>

>