Jump to main content.


Index of Cleared Science Reviews for Atrazine (PC Code 080803)

You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.

Undated. DER. 15 Pages.
Artensie Flowers. Science Information Mgt. Branch.
NON-GUIDELINE - EFFECT ON LUTEINIZING HORMONE SURGE-RAT.
MRID No. 45622309. DP BARCODE: D281938. TXR#: 0050773.
Document (PDF) (516 KB PDF).

Undated. Memorandum. 6 Page(s).
Sherell Sterling. Fungicide Herbicide Branch.
EPA File Symbol: 201-UNO. Shell Atrazine 4L Herbicide.
Document (PDF) (624 KB PDF).

July 29, 1966. Review. 2 Page(s).
Health Effects Division..
2-Year Chronic Feeding Study in Dogs with Atrazine 80W. Woodward Research
Corp., Oct. 27, 1964. Submitted 7/29/66. MRID# 0059213.
Document (PDF) (186 KB PDF).

July 10, 1968. Review. 12 Page(s).
Robert Coberly. Toxicology Branch.
Atrazine.
Document (PDF) (1959 KB PDF).

December 03, 1969. Letter. 12 Page(s).
Lamar Dale. Office of Product Safety (Toxicology).
Re. No. 100-UOA. Referral Date - 11/21/69. Inert ingredient information on pages 2
and 8 is not included.
Document (PDF) (1194 KB PDF).

September 04, 1975. Memorandum. 2 Page(s).
David Ritter. Toxicology Branch.
AAtrex 90 W; Label Safety Review. EPA Reg. No. 100-LIL.
Document (PDF) (155 KB PDF).

February 23, 1976. Memorandum. 3 Page(s).
Laurence Chitlik. Toxicology Branch.
Experimental Use Permit for the Herbicide GA-2-622 4.5L on Fresh Corn Including
Sweet Corn (Kernels Plus Cob With Husks Removed) and Corn Grain.
Inert ingredient information on page 1 is not included.
Document (PDF) (183 KB PDF).

January 18, 1977. Memorandum. 4 Page(s).
Charles Frick. Toxicology Branch.
Request for Amended Pesticide Product Registration - 538-18 Bonus for St. Augustine.
Document (PDF) (366 KB PDF).

February 14, 1977. Review. 4 Page(s).
William Greear. Toxicology Branch.
Registration Human Safety Review - Flowable Atrazine.
Document (PDF) (659 KB PDF).

August 22, 1977. Memorandum. 4 Page(s).
William Greear. Toxicology Branch.
AAtrex 4L - Addition of Data to Files, EPA Reg. No. 100-497 Caswell #63.
Document (PDF) (223 KB PDF).

August 25, 1977. Memorandum. 5 Page(s).
William Greear. Toxicology Branch.
AAtrex 90W - Addition of Data to Files, EPA Reg. No. 100-585 Caswell #63.
Document (PDF) (310 KB PDF).

August 29, 1977. Memorandum. 7 Page(s).
William Greear. Toxicology Branch.
AAtrex 80W - Addition of Data to Files, EPA Reg. No. 100-439 Caswell #63.
Document (PDF) (401 KB PDF).

August 30, 1977. Memorandum. 9 Page(s).
William Greear. Toxicology Branch.
Atrazine Technical - Addition of Data to Files.
Document (PDF) (768 KB PDF).

October 17, 1977. Memorandum. 1 Page(s).
William Woodrow. Toxicology Branch.
Amended Registration September 14, 1977 of Atrazine Products 100-439, -497, -535
& -585.
Document (PDF) (41 KB PDF).

October 21, 1977. Memorandum. 11 Page(s).
William Greear. Toxicology Branch.
Bicep 4.5L Herbicide. EPA File Symbol 100-EUP-58.
Document (PDF) (627 KB PDF).

November 22, 1977. Memorandum. 2 Page(s).
J. Doherty. Toxicology Branch.
Triox Liquid Vegetation Killer. Caswell #63, 184, 97, 740.
Document (PDF) (272 KB PDF).

December 06, 1977. Review. 12 Page(s).
Ronald Ney. Ecological Effects Branch.
EUP for Corn, Alone and in Combination with Bladex, Banvel, AAtrex, Paraquat and
Roundup.
Document (PDF) (466 KB PDF).

December 22, 1977. Memorandum. 4 Page(s).
William Greear. Toxicology Branch.
Atrazine Technical.
Document (PDF) (256 KB PDF).

January 10, 1978. Review. 9 Page(s).
Ronald Ney. Efficacy & Ecological Effects Branch.
EUP for Sorghum.
Document (PDF) (553 KB PDF).

January 31, 1978. Memorandum. 4 Page(s).
S-L Chan. Toxicology Branch.
EPA #100-EUP-59, An EUP for Dual 8E and Tank Mixes. Inert ingredient
information on page 1 is not included.
Document (PDF) (212 KB PDF).

April 04, 1978. Memorandum. 4 Page(s).
Carlos Rodriguez. Registration Division (Toxicology).
Request for Experimental Use Permit to Ship and Use a Pesticide for Experimental
Purpose Only. Bladex/Atrazine (2:1) 4 Herbicide for Preemergence Application for
the Control of Weeds in Field Corn. EPA File Symbol 201-EUP-61. Caswell #188C and 63.
Document (PDF) (254 KB PDF).

April 07, 1978. Memorandum. 2 Page(s).
William Greear. Toxicology Branch.
Section 18 Request for the Use of Atrazine on Proso Millet.
Document (PDF) (220 KB PDF).

May 18, 1978. Memorandum. 2 Page(s).
William Dykstra. Toxicology Branch.
Bicep TM 4.5L Herbicide.
Document (PDF) (612 KB PDF).

May 18, 1978. Memorandum. 9 Page(s).
Krystyna Locke. Toxicology Branch.
Bladex/Atrazine (2:1) 80W Herbicide. Caswell Nos. 63, 188C. EPA Reg. No. 201-403 UNG.
Document (PDF) (117 KB PDF).

June 30, 1978. Review. 4 Page(s).
Ronald Ney. Efficacy & Ecological Effects Branch.
New Product on Corn for Grain Excluding Popcorn.
Document (PDF) (231 KB PDF).

July 28, 1978. Review. 1 Page(s).
Environmental Fate Branch..
New Product for Use on Corn for Grain Excluding Popcorn.
Document (PDF) (39 KB PDF).

August 17, 1978. Review. 15 Page(s).
Richard Petrie. Efficacy & Ecological Effects Branch.
Add Use on Sorghum to Both Labels.
Document (PDF) (904 KB PDF).

August 24, 1978. Memorandum. 5 Page(s).
Toxicology Branch..
Atratol 8P (Active Ingredients: Atrazine, Sodium Chlorate, Sodium Metaborate).
Addition of Data to Files. EPA Reg. No. 100-475. Caswell Nos. 63, 753, 779AA.
Document (PDF) (303 KB PDF).

September 07, 1978. Memorandum. 9 Page(s).
Larry Anderson. Toxicology Branch.
Addition of Data to the Files. Acute tox studies. Acc. 234451.
Document (PDF) (461 KB PDF).

October 13, 1978. Review. 9 Page(s).
Environmental Fate Branch..
New Use on Grain Sorghum and Tank Mix with Terbutryn.
Document (PDF) (352 KB PDF).

December 08, 1978. Memorandum. 6 Page(s).
Raymond Landolt. Toxicology Branch.
State Registration for Missouri (24C) of a Flowable Herbicide Formulation Containing
Propachlor and Atrazine in a 3:1 Ratio.
Document (PDF) (395 KB PDF).

February 12, 1979. Memorandum. 2 Page(s).
Charles Frick. Toxicology Branch.
Section 18 Request for the Use of Atrazine (2 chloro-4- ethylamine-6-isopropylamine-
5-trizine) on Proso Millet for the Control of Grasses and Broad Leaf Weeds in Nebraska.
Document (PDF) (139 KB PDF).

March 26, 1979. Memorandum. 6 Page(s).
John Doherty. Toxicology Branch.
No. 524-GEI, Ramrod and Atrazine Herbicide, Flowable on Corn and Sorghum.
Application for New Registration. Caswell Nos. 63 and 194. Inert ingredient
information on page 1 is not included.
Document (PDF) (368 KB PDF).

March 28, 1979. Memorandum. 1 Page(s).
Charles Frick. Toxicology Branch.
Memo Concerning Metabolite Residues of Atrazine and Comments Regarding Such
by Chemistry Residue Branch.
Document (PDF) (97 KB PDF).

June 28, 1979. Memorandum. 2 Page(s).
Larry Anderson. Toxicology Branch.
Addendum to Memo on a Request for a Tolerance of 0.1 ppm for Atrazine in or on
Proso Millet (Grain, Green Fodder, Straw). PP #8E2076.
Document (PDF) (152 KB PDF).

October 01, 1979. Memorandum. 7 Page(s).
S. A. Sterling. Fungicide Herbicide Branch.
EPA File Symbol: 201-URN. Shell Atrazine 80W Herbicide.
Document (PDF) (486 KB PDF).

April 01, 1980. Review. 6 Page(s).
R. W. Cook. Environmental Fate Branch.
Amend Registration to Allow Greater Corn Rotation Flexibility.
Document (PDF) (270 KB PDF).

May 19, 1980. Memorandum. 26 Page(s).
Deloris Graham. Fungicide Herbicide Branch.
EPA Registration No. 11773-R, Atrazine 4L.
Document (PDF) (1612 KB PDF).

June 04, 1980. Memorandum. 10 Page(s).
Deloris Graham. Fungicide Herbicide Branch.
EPA Registration No. 538-RAG. Super Bonus S Weed Control Plus Lawn Fertilizer.
Document (PDF) (360 KB PDF).

July 16, 1980. Review. 32 Page(s).
Curtis Laird. Ecological Effects Branch.
Incremental Risk Assessment for Proposed Conditional Registration Amendments.
Document (PDF) (1180 KB PDF).

September 05, 1980. Review. 14 Page(s).
Willa Garner. Environmental Fate Branch.
Protocol for Field Dissipation Study of New Atrazine Formulation.
Document (PDF) (1227 KB PDF).

October 07, 1980. Memorandum. 16 Page(s).
Sherell Sterling. Fungicide Herbicide Branch.
EPA File Symbol: 2749-UIL. Atrazine 90 Water Dispersible Granule Herbicide.
Document (PDF) (1404 KB PDF).

November 17, 1980. Memorandum. 16 Page(s).
Sherell Sterling. Fungicide Herbicide Branch.
Atrazine 4L Herbicide, EPA File Symbol: 36480-RU.
Document (PDF) (1420 KB PDF).

November 25, 1980. Memorandum. 3 Page(s).
Deloris Graham. Fungicide Herbicide Branch.
EPA Registration No. 11773-R, Atrazine 4L Herbicide.
Document (PDF) (139 KB PDF).

January 13, 1981. Memorandum. 14 Page(s).
Sherell Sterling. Fungicide Herbicide Branch.
Atrazine 4L, EPA File Symbol 36480-RU.
Document (PDF) (1216 KB PDF).

February 11, 1981. Memorandum. 8 Page(s).
Deloris Graham. Fungicide Herbicide Branch.
EPA File Symbol: 7969-LU. Laddok: Caswell Nos. 509C, 63 Acute tox studies.
Acc. 244920. Tox review 000461.
Document (PDF) (599 KB PDF).

February 19, 1981. Memorandum. 1 Page(s).
Sherell Sterling. Fungicide Herbicide Branch.
Atrazine 90 Water Dispersible Granular Herbicide. EPA File Symbol: 2749-UIL.
Document (PDF) (51 KB PDF).

March 03, 1981. Memorandum. 6 Page(s).
P. V. Errico. Residue Chemistry Branch.
PP #OE2398 Atrazine Use on Guava. Evaluation of Analytical and Residue Data.
Formulation information on page 2 is not included.
Document (PDF) (330 KB PDF).

June 04, 1981. Memorandum. 4 Page(s).
David Ritter. Toxicology Branch.
PP #0E2398 - Atrazine in Guava, Minor Use Tolerance of 0.25 ppm.
Document (PDF) (454 KB PDF).

July 23, 1981. Memorandum. 14 Page(s).
Sherell Sterling. Fungicide Herbicide Branch.
Atrazine 90 Water Dispersible Granular Herbicide. EPA File Symbol: 2749-UIL.
Document (PDF) (1252 KB PDF).

August 11, 1981. Memorandum. 6 Page(s).
Amal Mahfouz. Toxicology Branch.
PP #1E2499; Atrazine on Orchardgrass (AAtrex 80W). EPA Reg. No. 100-439;
Minor Use Tolerance of 0.25 ppm. Accession No. 700211.
Document (PDF) (354 KB PDF).

September 10, 1981. Memorandum. 3 Page(s).
Martha Bradley. Residue Chemistry Branch.
PP #1E2499. Atrazine on Orchardgrass. Amendment of 8/18/81.
Document (PDF) (118 KB PDF).

September 18, 1981. Memorandum. 2 Page(s).
Amal Mahfouz. Toxicology Branch.
PP #1E2499 Atrazine on Orchardgrass (AAtrex 80W). EPA Reg. No. 100-439;
Revised Minor Use Tolerance of 15 ppm.
Document (PDF) (107 KB PDF).

September 29, 1981. Memorandum. 16 Page(s).
Sherell Sterling. Fungicide Herbicide Branch.
Atrazine 90 Water Dispersible Granular Herbicide. EPA File Symbol: 2749-UIL.
Document (PDF) (1480 KB PDF).

October 27, 1981. Memorandum. 4 Page(s).
Deloris Graham. Fungicide Herbicide Branch.
EPA File Symbol 19713-IN. Atrazine 5L Herbicide.
Document (PDF) (156 KB PDF).

October 28, 1981. Review. 2 Page(s).
Robert Coberly. Toxicology Branch.
PP #0E2398 Revised Section F - Guava 0.05 ppm.
Document (PDF) (97 KB PDF).

November 10, 1981. Memorandum. 2 Page(s).
Philip V. Errico. Residue Chemistry Branch.
PP #OE2398. Atrazine Use on Guava. Amendment of 8/18/81.
Document (PDF) (97 KB PDF).

February 10, 1982. Memorandum. 16 Page(s).
Deloris Graham. Fungicide Herbicide Branch.
EPA File Symbol 476-EENI. Sutan + 1 Atrazine 4.4F. Tox Review 003139.
Pages 5-16 are not included - draft label.
Document (PDF) (227 KB PDF).

March 10, 1982. Memorandum. 16 Page(s).
Deloris Graham. Fungicide Herbicide Branch.
EPA File Symbol 476-EERE. LC-6641 Selective Herbicide. Tox Review 002807.
Pages 4-16 are not included - draft label.
Document (PDF) (209 KB PDF).

December 21, 1982. Review. 14 Page(s).
Emil Regelman. Environmental Fate Branch.
EPA Reg. No. 100-439 - Add Uses on Sugarcane.
Document (PDF) (847 KB PDF).

January 04, 1983. Memorandum. 1 Page(s).
Henry Spencer. Toxicology Branch.
Change in Tolerances of Atrazine on Sugarcane, Re: Registration Nos. 100-439,
100-497, 100-535, 100-585, PP #3F2772, 3H5371.
Document (PDF) (63 KB PDF).

January 05, 1983. Memorandum. 11 Page(s).
R. W. Cook. Residue Chemistry Branch.
PP #3F2772/FAP 3H5371 Atrazine on Sugarcane. Evaluation of Analytical Method
and Residue Data.
Document (PDF) (701 KB PDF).

January 21, 1983. Memorandum. 2 Page(s).
Gary Burin. Toxicology Branch.
Memo of January 4, 1983 Regarding the Validation of Two Additional IBT
Studies of Atrazine.
Document (PDF) (201 KB PDF).
Attachment(s) Following:

January 04, 1983. Memorandum. 2 Page(s).
Gary Burin. Toxicology Branch.
Validation of Additional IBT Studies: Atrazine Mouse Oncogenicity and Rat
Chronic Oral Toxicity.

*End of Attachments*

April 25, 1983. Memorandum. 42 Page(s).
Henry Spencer. Toxicology Branch.
Atrazine Registration Standard Tox Review 002917.
Document (PDF) (5178 KB PDF).

June 01, 1983. Memorandum. 3 Page(s).
Henry Spencer. Toxicology Branch.
Atrazine Use on Sugarcane. Addendum: Tolerance Request 3F2772/FAP 3H5371 of
1.5 ppm in Molasses.
Document (PDF) (160 KB PDF).

October 07, 1983. Review. 18 Pages.
Martha Bradley. Residue Chemistry Branch.
Update Propazine. Acceptable Name: Propazine. Pesticide Reg. Sec. 180.243. Determination
of 2,4-Diamino-6-Chloro-s-Triazine (G-28273) Residues in Crops and Animal Tissue by Gas Chromatography.
Pages 8-18 removed, confidential statement of formula.
Document (PDF) (188 KB PDF).

November 04, 1983. Memorandum. 8 Page(s).
Martha Bradley. Residue Chemistry Branch.
PP #3F2870. Atrazine on Rangegrass. Evaluation of Analytical Methods and
Residue Data.
Document (PDF) (423 KB PDF).

October 04, 1984. Review. 2 Page(s).
Lionel Richardson. Exposure Assessment Branch.
Response to Registration Standard.
Document (PDF) (118 KB PDF).

May 09, 1985. Memorandum. 2 Page(s).
Henry Spencer. Toxicology Branch.
Atrazine: An interim report on a chronic feeding/oncogenicity rat study. (Neoplasms in
Charles River Strain) Toxigenics Study 4101102. Acc. 253912. EPA Reg. No 100-529.
Tox review 004453.
Document (PDF) (75 KB PDF).

May 17, 1985. Memorandum. 3 Page(s).
Henry Spencer. Toxicology Branch.
Atrazine: An Interim Report on a Chronic Feeding/ Oncogenicity Rat Study.
(Neoplasms in Charles River Strain). Toxigenics Study 410-1102.
Accession No. 253912. EPA Registration No. 100-529.
Document (PDF) (89 KB PDF).

July 08, 1985. Memorandum. 1 Page(s).
Leung Cheng. Residue Chemistry Branch.
EPA Reg. No. 19713-7. Registration of Atrazine - "Me-Too". Accession Number 257365.
RCB No. 898.
Document (PDF) (69 KB PDF).

August 16, 1985. Memorandum. 9 Page(s).
Deloris Graham. Fungicide Herbicide Branch.
EPA Registration Number 476-2216. LC-6641 Selective Herbicide.
Tox Review 006285. Pages 6-9 are not included - draft label.
Document (PDF) (653 KB PDF).

October 18, 1985. Memorandum. 9 Page(s).
John Jordan. Exposure Assessment Branch.
EPA Reg. Nos. 100-497, 439, 585. Denial of Waiver Request for AATREX Field
Dissipation Studies.
Document (PDF) (380 KB PDF).

December 26, 1985. Memorandum. 2 Page(s).
R. W. Cook. Chemistry Branch.
EPA Reg. Nos. 100-521, 100-529, 100-572, and 100-581. Waiver Request for
Residue Data Requirements of the Atrazine Registration Standard dated 10/7/85.
Commercial/Financial information removed from pages 1 & 2.
Document (PDF) (161 KB PDF).

January 03, 1986. Memorandum. 3 Page(s).
Lynn Bradley. Residue Chemistry Branch.
EPA Reg. Nos. 100-439, 100-497, 100-535, 100-585. Atrazine on Conifers.
Amended Registration to Alter Grazing Restrictions.
Document (PDF) (160 KB PDF).

March 28, 1986. Memorandum. 3 Page(s).
Herbert Lacayo. Toxicology Branch.
Atrazine, Probable Cause for Concern with Respect to Adenocarcinomas in Female Rats.
Document (PDF) (161 KB PDF).

April 10, 1986. Memorandum. 2 Page(s).
Henry Spencer. Toxicology Branch.
Atrazine Chronic Feeding/Oncogenicity Study Preliminary Incidence Table of Tumors
Regarding Possible Section 6 (a) (2) Effect.
Document (PDF) (106 KB PDF).

June 09, 1986. Memorandum. 2 Page(s).
Henry Spencer. Toxicology Branch.
Incremental Risk Assessment of Atrazine - EPA Registration No. 100-529
(Ciba-Geigy) and Atrazine - EPA Registration No. 33660-1 (I.Pi.Ci.)
[RCB - Deferral on a "Me-Too"].
Document (PDF) (92 KB PDF).

July 21, 1986. Memorandum. 2 Page(s).
Henry Spencer. Toxicology Branch.
Confirmation Letter from Registrant, Ciba-Geigy Re: Length of Continuation of Mouse
Oncogenicity Study on Atrazine.
Document (PDF) (171 KB PDF).
Attachment(s) Following:

June 03, 1986. Letter. 2 Page(s).
Thomas Parshley. Ciba-Geigy.
Confirmation of Telephone Conversation Regarding Survival/ Study Termination
for Atrazine Mouse Chronic Toxicity Study.

*End of Attachments*

August 18, 1986. Review. 11 Page(s).
Emil Regelman. Exposure Assessment Branch.
EPA Reg. No. 100-5857, 100-529, 100-497, 100-439. Atrazine Herbicide (AATREX).
Request for Waivers, and Submission of Field Dissipation Protocols and
Amendments for EAB Review. Manufacturing process information on pages 8-9 not included.
Document (PDF) (1590 KB PDF).

November 06, 1986. Memorandum. 24 Page(s).
Yiannakis Ioannou. Toxicology Branch.
Atrazine - Review of Metabolism Studies in the Rat (EPA Registration No. 100-529)
in Support of Reregistration of Atrazine.
Document (PDF) (1037 KB PDF).

January 14, 1987. Memorandum. 2 Page(s).
Henry Spencer. Toxicology Branch.
Atrazine: Registrant Comments on Possible Outcome of Rat Oncogenicity/Chronic
Toxicity Study - Accession Nos. 262714 through 262728 (15 Volumes) -
EPA Registration No. 100-529.
Document (PDF) (109 KB PDF).

February 03, 1987. Memorandum. 2 Page(s).
Martha Bradley. Residue Chemistry Branch.
EPA Reg. No. 100-529. Atrazine Registration Standard. Ciba-Geigy Request for
Time Extension for Pineapple Residue Data, November 26, 1986.
Document (PDF) (76 KB PDF).

April 28, 1987. Memorandum. 6 Page(s).
Maxie Jo Nelson. Residue Chemistry Branch.
EPA Reg. No. 100-541. Atrazine and Simazine. Protocols for Conducting Animal
Metabolism Studies. RCB No.: 2107 MRID/Acess. No.: None.
Document (PDF) (368 KB PDF).

June 16, 1987. Memorandum. 2 Page(s).
Henry Spencer. Toxicology Branch.
Twenty-Four-Month Combined Chronic Oral Toxicity and Oncogenicity Study in Rats
Utilizing Atrazine 98.9% Technical (Accession Nos. 262714-262727). Tox Review 005940.
Document (PDF) (2088 KB PDF).
Attachment(s) Following:

March 20, 1987. Data Eval. Rec. 25 Page(s).
Cecil Felkner. Dynamac Corporation.
Atrazine Chronic Oral Toxicity/Oncogenicity Study in Rats Tox Review 005940.

*End of Attachments*

June 25, 1987. Review. 3 Page(s).
Matthew Lorber. Exposure Assessment Branch.
Control No. 86. Atrazine Herbicide. Submission of Monitoring Findings.
Document (PDF) (113 KB PDF).

June 30, 1987. Review. 8 Page(s).
Matthew Lorber. Exposure Assessment Branch.
Control #87. Atrazine Herbicide. Submission of Monitoring Findings.
Document (PDF) (814 KB PDF).

July 02, 1987. Review. 19 Page(s).
Carolyn Offutt. Exposure Assessment Branch.
Alachlor and Alternatives. Review of 1985 Surface and Ground Water Screening
Results for Selected Herbicides for PD4.
Document (PDF) (1124 KB PDF).

July 14, 1987. Memorandum. 3 Page(s).
Henry Spencer. Toxicology Branch.
Interim Report on IARC Rat Chronic Feeding/Oncogenicity Study on Atrazine
Conducted in Hungary. EPA Reg. No. 100-529.
Document (PDF) (271 KB PDF).

July 14, 1987. Review. 7 Page(s).
Cecil Felkner. Dynamac Corporation.
Atrazine--Qualitative and Quantitative Risk Assessment Tox review 006510.
Document (PDF) (310 KB PDF).

August 19, 1987. Memorandum. 25 Page(s).
Henry Spencer. Toxicology Branch.
Transmittal of DERs of a rat and Rabbit Teratology Study Using atrazine Required By
Data Call-In Notice - EPA Registration No. 100-529 Accession No. 254979
Tox review 006131.
Document (PDF) (1194 KB PDF).

August 21, 1987. Review. 2 Page(s).
Matthew Lorber. Exposure Assessment Branch.
Atrazine. Ground-Water-Data-Call-In. Ciba-Geigy.
Document (PDF) (53 KB PDF).

August 25, 1987. Memorandum. 2 Page(s).
Judith Hauswirth. Toxicology Branch.
Chronic Dog Feeding Study on a Major Metabolite of Atrazine - FIFRA Section 6(a)(2)
Data. Submitted by Ciba-Geigy Corporation August 4, 1987. Record No. 201148.
Tox Branch Project No. 7-0890.
Document (PDF) (87 KB PDF).

August 26, 1987. Memorandum. 10 Page(s).
Judith Hauswirth. Toxicology Branch/HED.
Weight-of-the-Evidence and Oncogenic Properties of Atrazine. Memo to the Peer
Review Committee.
Document (PDF) (901 KB PDF).

October 06, 1987. Review. 17 Page(s).
Carolyn Offutt. Exposure Assessment Branch.
Submission of Final 1986 Surface Water Monitoring Results for Alachlor, Atrazine,
Cyanazine, Metolachlor, and Simazine. Page 17 removed, commercial/financial information.
Document (PDF) (886 KB PDF).

October 09, 1987. Review. 3 Page(s).
Matthew Lorber. Exposure Assessment Branch.
EPA Reg./File No. 200837. Atrazine Herbicide. Submission of Monitoring Findings.
Document (PDF) (103 KB PDF).

October 09, 1987. Review. 6 Page(s).
Matthew Lorber. Exposure Assessment Branch.
EPA Reg. No. 100529. Atrazine Herbicide. Ciba-Geigy Corporation. Submission of
Monitoring Findings.
Document (PDF) (245 KB PDF).

November 23, 1987. Review. 3 Page(s).
Patrick Holden. Exposure Assessment Branch.
Environmental Fate Review of Atrazine. Ciba-Geigy. Ground Water Monitoring Data.
EAB #70496.
Document (PDF) (245 KB PDF).

November 23, 1987. Review. 5 Page(s).
Patrick Holden. Exposure Assessment Branch.
Atrazine. Ground Water Monitoring Data. Ciba-Geigy. EAB # 80012.
Document (PDF) (194 KB PDF).

December 03, 1987. Review. 6 Page(s).
Patrick Holden. Exposure Assessment Branch.
EPA Reg. /File No. 100529. Atrazine Herbicide. Ciba-Geigy Corp. Submission of
Monitoring Findings.
Document (PDF) (379 KB PDF).

December 08, 1987. Review. 7 Page(s).
Thomas Dixon. Exposure Assessment Branch.
EPA Reg./File No. 42006. Atrazine Herbicide. Comment on Report of Atrazine
Findings in Surface Water.
Document (PDF) (285 KB PDF).

January 06, 1988. Review. 18 Page(s).
Michael Firestone. Exposure Assessment Branch.
EPA Reg./File No. 206273. Atrazine Herbicide. Exposure Assessment for Policy Group.
Document (PDF) (739 KB PDF).

January 12, 1988. Memorandum. 8 Page(s).
J. R. Tomerlin. Residue Chemistry Branch.
Atrazine - Dietary Exposure and Oncogenic Risk Assessment.
Document (PDF) (594 KB PDF).

January 29, 1988. Review. 26 Page(s).
Patrick Holden. Exposure Assessment Branch.
Environmental Fate and Leaching Assessment of Atrazine for Consideration for
Special Review.
Document (PDF) (2250 KB PDF).

January 29, 1988. Review. 28 Page(s).
Patrick Holden. Exposure Assessment Branch.
EPA Reg./File No. 100529. Atrazine Herbicide. Ciba-Geigy Corporation.
Environmental Fate and Leaching Assessment of Atrazine for Consideration for
Special Review.
Document (PDF) (2386 KB PDF).

February 25, 1988. Review. 212 Page(s).
Emil Regelman. Exposure Assessment Branch.
EPA Reg. No. 100-529. Atrazine Herbicide (AATREX NINE-O). Ciba-Geigy.
Review of Data in Response to Standard. Pages 18-21, 26-37, 44-50, 54-58, 64-80,
85-95, 99-109, 112- 114, 117-119, 122-124, 130-141, 144-155, 159-169, 172-183,
187-197, 200-210 deleted, RD.
Document (PDF) (3608 KB PDF).

March 07, 1988. Review. 4 Page(s).
Patrick Holden. Exposure Assessment Branch.
Atrazine Herbicide. Ciba-Geigy Corp. Report of Ground- Water Monitoring Data.
Document (PDF) (160 KB PDF).

March 10, 1988. Memorandum. 1 Page(s).
Sanford Bigelow. Toxicology Branch.
Request for Historical Control Data on Neoplastic Lesions seen in Atrazine Mouse
Oncogenicity Study MRID 40431302.
Document (PDF) (62 KB PDF).

April 11, 1988. Review. 3 Page(s).
Patrick Holden. Exposure Assessment Branch.
Atrazine Herbicide. Ciba-Geigy Corp. Report of Ground- Water Monitoring Data.
EAB No. 80606.
Document (PDF) (80 KB PDF).

April 12, 1988. Review. 86 Page(s).
Emil Regelman. Exposure Assessment Branch.
EPA Reg./File No. 100-529. Atrazine Herbicide (AATREX NINE- O). Ciba-Geigy.
Review of Data in Response to Standard. Pages 12-22, 25-35, 38-48, 51-53, 56-58,
62, 66-86 not included - registration data.
Document (PDF) (2372 KB PDF).

May 20, 1988. Memorandum. 182 Page(s).
Judith Hauswirth. Toxicology Branch.
Atrazine - Submission of Toxicity Studies to Fulfill the Requirements Outlined in the
Registration Standard. Submitted by Ciba-Geigy Corporation on December 27, 1987.
Tox review 006718 Pages 11-18, 54-67, 75-78 removed-registrant data.
Document (PDF) (9034 KB PDF).

June 06, 1988. Memorandum. 7 Page(s).
Judith Hauswirth. Toxicology Branch.
Peer Review of Atrazine.
Document (PDF) (475 KB PDF).

June 07, 1988. Memorandum. 19 Page(s).
Judith Hauswirth. Toxicology Branch.
Further Review of Atrazine Metabolism Reports Pages 4-5, 12-13, 18-19 removed,
registrant data. MRID Nos. 404375-01, 404313-06 Tox review 006737.
Document (PDF) (786 KB PDF).

June 10, 1988. Review. 5 Pages.
Emil Regelman. Exposure Assessment Branch.
Reg./File #: 100-529. Chemical Name: ATRAZINE. Type product: Herbicide. Product
Name: AATRAEX® NINE-O®. Campany Name: Ciba-Geigy. Review of study
submitted in response to Registration Standard. Action Code: 660.
Document (PDF) (351 KB PDF).

June 24, 1988. Memorandum. 28 Page(s).
Judith Hauswirth. Toxicology Branch.
Atrazine - Company Response to Toxicology Branch Reviews of Rat and Rabbit
Teratology Studies. Submitted March 25, 1988 by Ciba-Geigy Corporation.
MRID 405663-01, -02 Tox review 006761.
Document (PDF) (1150 KB PDF).

June 30, 1988. Memorandum. 1 Page(s).
Sanford Bigelow. Toxicology Branch.
Review of Historical Control Data on Lesions Seen in Atrazine Mouse Oncogenicity
Study (842120). Tox review 006765.
Document (PDF) (51 KB PDF).

July 12, 1988. Memorandum. 3 Page(s).
Michael Metzger. Residue Chemistry Branch.
Atrazine Special Review. Data Call-In for Residue Field Trials in Which
Hydroxylated Atrazine Metabolites are Measured.
Document (PDF) (119 KB PDF).

July 18, 1988. Memorandum. 13 Page(s).
Robert Zendzian. Toxicology Branch.
Atazine, Recalculation of Oncogenic Risk Utilizing Data From a Rat Dermal
Absorption Study Pages 10-13 removed, registrant data. MRID 404313-08.
Document (PDF) (529 KB PDF).

August 01, 1988. Memorandum. 3 Page(s).
Judith Hauswirth. Toxicology Branch.
Second Peer Review of Atrazine.
Document (PDF) (200 KB PDF).

August 01, 1988. Memorandum. 4 Page(s).
Marion Copley. Toxicology Branch.
EPA ID: 100-529: Atrazine: Reevaluation of slides for rat chronic
feeding/oncogenicity study (Sprague Dawley).
MRID 406293-02 (Orig Acc. 262714-262727; MRID 00158930).
Document (PDF) (243 KB PDF).

August 23, 1988. Memorandum. 6 Page(s).
C. J. Nelson. Toxicology Branch.
Atrazine - Updated Qualitative and Quantitative Risk Assessment from a Rat 2-Year
Chronic Oral Toxicity/ Oncogenicity Study. Tox review 006956.
Document (PDF) (350 KB PDF).

September 14, 1988. Review. 49 Page(s).
Michael Metzger. Dietary Exposure Branch.
Atrazine Special Review: Dietary Exposure Assessment No AccessionNumber /
No MRID Number DEB Nos. 3688-3703, 3756 Page 49 removed, product manufacturing process.
Document (PDF) (4248 KB PDF).

October 18, 1988. Memorandum. 64 Page(s).
Charles Trichilo. Dietary Exposure Branch.
Atrazine Second Round Review Registration Standard. Product Chemistry chapter.
Quality control procedure and manufacturing process info on pages 11, 12, 15,
and 16 not included.
Document (PDF) (6445 KB PDF).

October 31, 1988. Data Eval. Rec. 1 Page(s).
Henry Craven. Ecological Effects Branch.
MRID: 129075. Data Evaluation Record for Atrazine. Effects of Selected Herbicides
on Smolting of Coho Salmon.
Document (PDF) (57 KB PDF).

October 31, 1988. Data Eval. Rec. 5 Page(s).
Otto Gutenson. Ecological Effects Branch.
MRID: 147125. Data Evaluation Record for Atrazine. Acute Toxicity of Atrazina
Tecnica to Blue-gill.
Document (PDF) (197 KB PDF).

November 15, 1988. Memorandum. 7 Page(s).
Marion Copley. Toxicology Branch.
EPA ID: 100-529; Atrazine; Assessment of risk to applicators due to oncogenicity
and cardiotoxicity.
Document (PDF) (401 KB PDF).

November 18, 1988. Memorandum. 21 Page(s).
Silvia Termes. Environmental Fate & Ground Water Branch.
Atrazine (Herbicide). Second Round Review. EFGB Science Chapter
and Data Requirements.
Document (PDF) (1145 KB PDF).

November 18, 1988. Review. 25 Page(s).
Dynamac Corporation..
Atrazine SRR. Vol. III. Executive Summary and Structures... Final Report.
Document (PDF) (1796 KB PDF).

November 18, 1988. Review. 311 Page(s).
Dynamac Corporation..
Atrazine SRR. Vol. II. Dissipation Studies (Field). Final Report. Pages 8-28, 34-57,
62-83, 89-112, 119-139, 147-163, 171-196, 204-229, 236-268, 275-287, 295-311 not included
- registration data.
Document (PDF) (3705 KB PDF).

November 18, 1988. Review. 359 Page(s).
Dynamac Corporation..
Atrazine SRR. Vol. I. Degradation Studies... Final Report. Pages 10-13, 31-42, 50-
56, 64-92, 110-126, 132-136, 154-160, 165-175, 180-190, 195-205, 210-220, 225-235,
254-262, 267- 275, 280-282, 288, 293-295, 300-302, 306-308, 312-314, 319- 322 not included
- registration data.
Document (PDF) (11397 KB PDF).

November 22, 1988. Memorandum. 32 Page(s).
Marion Copley. Toxicology Branch.
Third Peer Review of Atrazine - Reevaluation Following the September 7, 1988
Scientific Advisory Panel Review.
Document (PDF) (2103 KB PDF).

November 29, 1988. Memorandum. 11 Page(s).
Marion Copley. Toxicology Branch.
Atrazine, Review and/or Reevaluation of Data Evaluation Reports for FRSTR
Tox review 006938.
Document (PDF) (1272 KB PDF).

December 09, 1988. Memorandum. 348 Page(s).
Marion Copley. Toxicology Branch.
Atrazine, Toxicology Chapter of the Reregistration Standard Tox review 006937.
(Tox review 006718, 002816, 006131) Pages 107-120, 148, 182-188, 227-234, 253-254, 337-
340 have been removed-registrant data.
Document (PDF) (19739 KB PDF).

December 16, 1988. Memorandum. 11 Page(s).
Marion Copley. Toxicology Branch.
ID:100-529; Atrazine; Assessment of risk due to dietary exposure. (TAS Analysis).
Document (PDF) (716 KB PDF).

February 10, 1989. Memorandum. 7 Page(s).
Esther Saito. Environmental Fate & Effects Division.
Atrazine Registration Standard + Applicator Exposure.
Document (PDF) (796 KB PDF).

February 27, 1989. Memorandum. 9 Page(s).
Irving Mauer. Toxicology Branch.
Hydroxyatrazine - Review and Evaluation of Mutagenicity Study Submitted Under
EPA MRID No. 40888101 Pages 7-9 removed, registrant data. EPA ID 100-529
Tox review 007050.
Document (PDF) (380 KB PDF).

April 27, 1989. Memorandum. 17 Page(s).
Marion Copley. Toxicology Branch.
Follow up to Third Peer Review of Atrazine.
Document (PDF) (925 KB PDF).

July 07, 1989. Memorandum. 5 Page(s).
Michael Metzger. Dietary Exposure Branch.
Atrazine Dietary Exposure: 1) Additional Calculations of Anticipated Residues in
Milk and Red Meat; 2) Response to SRB Questions Regarding Whether a DCI for
Market Basket Survey Data is Needed.
Document (PDF) (320 KB PDF).

July 13, 1989. Memorandum. 14 Page(s).
Marion Copley. Toxicology Branch.
Amendment 2 to the Toxicology Chapter of the Final Registration Standard and
Tolerance Reassessment for Atrazine. [Toxicology Endpoint Selection attached]
Tox review 007347.
Document (PDF) (837 KB PDF).

July 14, 1989. Memorandum. 2 Page(s).
Curt Lunchick. Non-Dietary Exposure Branch.
Exposure Assessment for the Application of Atrazine to Sorghum.
Document (PDF) (125 KB PDF).

July 26, 1989. Memorandum. 7 Page(s).
Steven Knott. Non-Dietary Exposure Branch.
Non-Dietary Exposure Assessment for the Application of Atrazine Using and Open
Cab Versus a Closed Cab Tractor (No HED Project Number).
Document (PDF) (314 KB PDF).

July 27, 1989. Memorandum. 5 Page(s).
Marion Copley. Toxicology Branch.
ID:100-529: Use of Atrazine on Sorghum: Assessment of risk to
mixer/loader/applicators for oncogenicity and cardiotoxicity.
Document (PDF) (280 KB PDF).

August 01, 1989. Memorandum. 10 Page(s).
J. Robert Tomerlin. Science Analysis & Coordination Branch.
Dietary Exposure and Oncogenic Risk Assessment for Atrazine.
Document (PDF) (1102 KB PDF).

August 08, 1989. Review. 6 Page(s).
Emil Regelman. Environmental Fate & Ground Water Branch.
EPA Reg./File No. 127. Atrazine Herbicide (AATRAEX). Ciba- Geigy Corporation.
Response Letter from Registrant Reporting Findings of Atrazine in Ground Water.
Document (PDF) (247 KB PDF).

October 20, 1989. Memorandum. 13 Page(s).
Marion Copley. Toxicology Branch.
ID:100-529; Atrazine; Assessment of risk to applicators due to carcinogenicity
and cardiotoxicity.
Document (PDF) (565 KB PDF).

November 29, 1989. Memorandum. 1 Page(s).
Michael Metzger. Dietary Exposure Branch.
Atrazine Hydroxy-Metabolites in Sugarcane.
Document (PDF) (55 KB PDF).

December 15, 1989. Memorandum. 5 Page(s).
Marion Copley. Toxicology Branch.
ID 080803: Atrazine; Reevaluation of Chronic Toxicity in the 1-year Dog Study
MRID 412938-01 Tox review 007647.
Document (PDF) (360 KB PDF).

December 19, 1989. Memorandum. 5 Page(s).
Marion Copley. Toxicology Branch.
ID 0808030: Atrazine; Reevaluation of Chronic Toxicity in the One-year Dog Study
MRID 412938-01 Tox review 007647.
Document (PDF) (265 KB PDF).

February 15, 1990. Memorandum. 5 Page(s).
Michael Metzger. Dietary Exposure Branch.
Hydroxymetabolites of Atrazine and Other Triazine Herbicides.
Document (PDF) (383 KB PDF).

March 06, 1990. Review. 74 Page(s).
Emil Regelman. Environmental Fate & Ground Water Branch.
EPA Reg./File No. 100-529. Atrazine Herbicide (AATREX). Review of New Batch-
Equilibrium Adsorption/Desorption Studies Submitted to Replace Previously
Reviewed Studies... Pages 14-22, 26-34, 38-46, 51-59, 63-71 not included -
registration data.
Document (PDF) (1583 KB PDF).

March 15, 1990. Oneliner. 4 Page(s).
Environmental Fate and Ground Water Branch.
Pesticide Environmental Fate One Line Summary Atrazine.
Document (PDF) (136 KB PDF).

May 03, 1990. Review. 37 Page(s).
Michael Metzger. Dietary Exposure Branch.
Atrazine Special Review. Metabolism, Revised Anticipated Residues.
MRID Nos. 412098-00, -01, -02, -03, -04, -05, -06, -07, -08.
Document (PDF) (2847 KB PDF).

May 21, 1990. Memorandum. 15 Page(s).
Richard Griffin. Science Analysis & Coordination Branch.
Revised Dietary Exposure Analysis for Atrazine Special Review.
Document (PDF) (1169 KB PDF).

June 08, 1990. Review. 81 Page(s).
James Akerman. Ecological Effects Branch.
Atrazine Herbicide. Ciba-Geigy. Review Tier II Phytotoxicity Data.
MRIDs 412230-01, -02, -03.
Document (PDF) (3740 KB PDF).

July 26, 1990. Memorandum. 2 Page(s).
Michael Metzger. Dietary Exposure Branch.
Atazine Special Review. Additional Analytical Method and Storage Stability Data.
MRID Nos. 413971-01, -02, -1, 414234-01 DEB Nos. 6796, 6797.
Document (PDF) (101 KB PDF).

September 21, 1990. Memorandum. 6 Page(s).
Jerome Blondell. Non-Dietary Exposure Branch.
Italian Triazine Cancer Epidemiology Studies, HED Project No. 0-1573.
Document (PDF) (469 KB PDF).

January 01, 1991. DER. 8 pages.
S. Termes. Environmental Fate & Ground Water Branch.
STUDY 3. STUDY ID 42089906. Summary report: Soil metabolism of 14C-atrazine
and metabolite characterization/identification. CONCLUSIONS: Metabolism -
Aerobic Soil. Metabolism - Anaerobic Soil. (MRID 40629303, 40431323, 42089906).
Document (PDF) (49 KB PDF).

January 07, 1991. Memorandum. 17 Pages.
Joseph A. Cotruvo. Health and Environmental Review Division.
Structure-Activity Relationship (SAR) Analysis of s-Triazine
Pesticides and Related Compounds.
Document (PDF) (580 KB PDF).

January 07, 1991. Memorandum. 5 Pages.
Henry Spencer. Toxicology Branch I.
Conclusions Drawn from Structure-Activity-Relationship (SAR) Analysis of
s-Triazine Pesticides and Related compounds from OTS.
Document (PDF) (190 KB PDF).

February 14, 1991. Memorandum. 4 Pages.
Jerome Blondell. Occupational & Residential Exposure Branch.
Review of midwest cancer epidemiology studies related to triazines.
HED Project No. INTRA-0141.
Document (PDF) (191 KB PDF).

March 07, 1991. Memorandum. 20 Page(s).
R. B. Perfetti. Chemistry Branch II.
Response to the Atrazine Reregistration Standard: Product Chemistry.
MRID 41640401 Pages 14-20 deleted - quality control procedures, product impurities,
manufacturing process, confidential appendix.
Document (PDF) (720 KB PDF).

May 08, 1991. Review. 6 Page(s).
Emil Regelman. Environmental Fate & Ground Water Branch.
EPA Reg. No. 100-529. Atrazine Herbicide (AATREX). Ciba- Geigy Corp. Review
of Data Submitted in Response to Data Requested in Studies Conducted with
Atrazine and Its Main Degradates. Data Requested: Soil Series Names.
Document (PDF) (475 KB PDF).

August 08, 1991. Memorandum. 31 Page(s).
Myron Ottley. Toxicology Branch.
ID # 100-542 Atrazine. Review and Discussion of Atrazine & Hydroxyatrazine
Developmental Toxicity Studies in the Rat. Tox Review No. 008493.
MRID Nos. 410652-01, and -02.
Document (PDF) (2403 KB PDF).

August 23, 1991. Memorandum. 16 Page(s).
Silvia Termes. Environmental Fate & Ground Water Branch.
Review of CIBA-GEIGY's Ninety-Day Response to the Atrazine Data Call-In
Manufacturing process data on page 6 is not included.
Document (PDF) (987 KB PDF).

August 28, 1991. Review. 197 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of surface water monitoring data. MRID 410652-05, 411352-06 Pages 13-25,
31-52, 60-148, 152-162 and 166-197 are deleted- registrant data.
Document (PDF) (3057 KB PDF).

August 30, 1991. Memorandum. 3 Page(s).
Stephen Funk. Chemistry Branch II.
FIFRA Section 6(a)(2) Submission. Chlorinated Dibenzofuran Impurity in Technical
Atrazine. MRID 42043501. Manufacturing process information on page 1 is not
included, pages 2 and 3 deleted - product impurities, manufacturing process.
Document (PDF) (261 KB PDF).

October 31, 1991. Memorandum. 5 Page(s).
Stephen Funk. Chemistry Branch II.
FIFRA Section 6(a)(2) Submission. Chlorinated Dibenzofuran Impurity in Technical
Atrazine. MRID 42043501. Manufacturing process information on page 1 is not
included, pages 2-5 deleted - product impurities, manufacturing process.
Document (PDF) (554 KB PDF).

November 20, 1991. Review. 5 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Review of the detection of Ciba-Geigy chemicals (atrazine, metolachlor, and
simazine) in ground water in Florida and Ohio.
Document (PDF) (299 KB PDF).

December 18, 1991. Review. 4 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Review of the detection of Ciba-Geigy chemicals (atrazine and simazine) in ground
water in North Carolina.
Document (PDF) (206 KB PDF).

December 23, 1991. Memorandum. 19 Page(s).
Henry Spencer. Toxicology Branch.
Request from the registrant to reconsider the NOEL established in the Atrazine rat
reproduction study. Pages 6-12 removed, registrant data. MRID 40431301.
Document (PDF) (780 KB PDF).

January 10, 1992. Review. 14 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of surface water monitoring data Pages 5-14 deleted-registrant data.
Document (PDF) (253 KB PDF).

January 10, 1992. Review. 4 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of FIFRA 6(a)(2) surface water monitoring data.
Document (PDF) (363 KB PDF).

January 21, 1992. Review. 4 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Review of the detection of atrazine and its metabolites in ground water
in Idaho and Florida.
Document (PDF) (403 KB PDF).

January 21, 1992. Review. 4 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Review of the detection of atrazine and metolachlor in ground water in Wisconsin.
Document (PDF) (477 KB PDF).

January 22, 1992. Memorandum. 14 Page(s).
Michael Metzger. Chemistry Branch II.
Atrazine 90-Day Response from Ciba-Geigy.No MRID Number.CBRS No. 9167.
DP Barcode D172756.
Document (PDF) (867 KB PDF).

March 03, 1992. Review. 11 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of 6(2)(a) surface water monitoring data MRID 621161-01
Pages 6-11 deleted-registrant data.
Document (PDF) (286 KB PDF).

March 03, 1992. Review. 18 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of FIFRA 6(2)(a) surface water monitoring data MRID 521668-01
Pages 5-18 are deleted-registrant data.
Document (PDF) (258 KB PDF).

March 03, 1992. Review. 7 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of FIFRA 6(2)(a) surface water monitoring data MRID 421669-01
Pages 5-7 are deleted-registrant data.
Document (PDF) (262 KB PDF).

March 03, 1992. Review. 8 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of FIFRA 6(2)(a) surface water monitoring data MRID 421667-01
Pages 6-8 are deleted-registrant data.
Document (PDF) (269 KB PDF).

March 10, 1992. Review. 707 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of surface water monitoring data for atrazine and other triazines
Pages 95-129, 135-139, 164-244 and 324-707 deleted- registrant data.
Document (PDF) (10425 KB PDF).

April 08, 1992. Memorandum. 11 Page(s).
Stephen Funk. Chemistry Branch II.
FIFRA Section 6(a)(2) Submission. Chlorinated Dibenzofuran Impurity in Technical
Atrazine. MRID 42211401. Manufacturing process information on page 1 is not
included, pages 2-11 deleted - product impurities, manufacturing process.
Document (PDF) (233 KB PDF).

April 22, 1992. Memorandum. 5 Page(s).
William Anthony. Chemistry Branch II.
Atrazine Technical: Product Chemistry. Generic Data. EPA Reg. No. 35915-6.
MRID 42094801. Pages 3-5 removed, product impurities, manufacturing process
quality control procedures, and confidential appendices.
Document (PDF) (191 KB PDF).

May 11, 1992. Memorandum. 34 Page(s).
Henry Spencer. Toxicology Branch.
Review of the Developmental Toxicity Study in Rats; and the One-Year Chronic
Study in Dogs with the Atrazine Metabolite, Diaminochlorotriazine Tox review 009497.
Document (PDF) (1879 KB PDF).

May 19, 1992. Memorandum. 21 Page(s).
Dennis Howard. Pesticide Management & Disposal Staff.
Ciba-Geigy proposed waiver of 50-ft. set-back for atrazine mixing/loading/storage sites
(DP Barcodes D174673, D174677, and D174680).
Document (PDF) (1435 KB PDF).

May 27, 1992. Review. 11 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Acknowledge Receipt of 6(a)(2) detections in wells & Request additional information
Pages 5-7 are deleted-registrant data.
Document (PDF) (709 KB PDF).

May 27, 1992. Review. 11 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
To obtain additional pesticide residue data from the Ohio Dept. of Public Health.
Document (PDF) (703 KB PDF).

June 22, 1992. Review. 62 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Acknowledge Receipt of Detections in Wells & Request Additional Information.
Pages 5-62 removed, 6(a)(2) data and registrant data.
Document (PDF) (220 KB PDF).

July 07, 1992. Memorandum. 9 Page(s).
Michael Metzger. Chemistry Branch II.
Metabolism of the Triazine Herbicides Atrazine, Simazine, and Cyanazine. Issues to
be presented to the Metabolism Committee on 7/8/92.
Document (PDF) (534 KB PDF).

July 07, 1992. Review. 4 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
6(a)(2) submission of ground and surface water data.
Document (PDF) (230 KB PDF).

August 02, 1992. Memorandum. 26 Page(s).
Henry Spencer. Toxicology Branch I.
Review of the 90-DAy Subchronic Rat Study on Hydroxyatrazine Tox review 009647
MRID 41293501.
Document (PDF) (1211 KB PDF).

August 03, 1992. Memorandum. 8 Page(s).
Stephen Dapson. Toxicology Branch.
Atrazine - re-evaluation of the maternal toxicity in the rabbit teratology study
(MRID # 405663-01) Tox review 009652.
Document (PDF) (480 KB PDF).

August 07, 1992. Memorandum. 3 Page(s).
Michael S. Metzger. Chemistry Branch II.
Atrazine,Simazine, & Cyanazine. Results of the Metabolism Committee
Meeting of 07/09/92.
Document (PDF) (185 KB PDF).

August 11, 1992. Memorandum. 56 Page(s).
Edward Zager. Chemistry Branch II.
Atrazine Product Chemistry Reregistration Standard Updates MRIDs 41379801, -02,
-03, 141156, 142160, 149931, 153235, 164821, -2, 40566501, 41640401, 42043501,
42094801. Pages 46-56 deleted - manufacturing process, quality control
procedures, confidential.
Document (PDF) (2757 KB PDF).

September 23, 1992. Memorandum. 14 Page(s).
Ad hoc Committee. Health Effects Division.
FROM: Ad hoc Committee for Atrazine Reproductive Issues SUBJECT: Atrazine
Two-Generation Reproduction Study [No MRID Number listed].
Document (PDF) (592 KB PDF).

September 30, 1992. Review. 17 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of FIFRA 6(a)(2) surface water monitoring data MRID 422288-01
Pages 5-17 removed, registrant data.
Document (PDF) (211 KB PDF).

September 30, 1992. Review. 7 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of FIFRA 6(a)(2) surface water monitoring data MRID 421670-01
Pages 5-7 removed, registrant data.
Document (PDF) (217 KB PDF).

September 30, 1992. Review. 7 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of FIFRA 6(a)(2) surface water monitoring data MRID 423154-01
Pages 5-7 removed, registrant data.
Document (PDF) (220 KB PDF).

September 30, 1992. Review. 8 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Review of FIFRA 6(a)(2) surface water monitoring data MRID 424432-01
Pages 5-8 removed, registrant data.
Document (PDF) (233 KB PDF).

September 30, 1992. Review. 8 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of FIFRA 6(a)(2) surface water monitoring data MRID 422019-01
Pages 6-8 are removed, registrant data.
Document (PDF) (267 KB PDF).

September 30, 1992. Review. 8 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of FIFRA 6(a)(2) surface water monitoring data MRID 422842-01
Pages 6-8 removed, registrant data.
Document (PDF) (297 KB PDF).

September 30, 1992. Review. 9 Page(s).
Henry Nelson. Envirnomental Fate & Ground Water Branch.
Review of FIFRA 6(a)(2) surface water monitoring data MRID 424170-01
Pages 6-9 removed, registrant data.
Document (PDF) (299 KB PDF).

October 06, 1992. Review. 10 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Acknowledge 6(a)(2) data-atrazine and degradate in wells in Wisconsin.
Document (PDF) (640 KB PDF).

October 06, 1992. Review. 11 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Acknowledge additional 6(a)(2) follow-up data-Jackson Co. Florida
Pages 3-5 not included-registrant data.
Document (PDF) (621 KB PDF).

October 06, 1992. Review. 11 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Acknowledge atrazine and cyanazine detection in wells
Pages 3-5 deleted-registrant data.
Document (PDF) (596 KB PDF).

October 06, 1992. Review. 11 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Acknowledge atrazine and metolachlor in tap water-Howard Co. Maryland
Pages 5-6 deleted - 6(a)(2) data and registrant data.
Document (PDF) (857 KB PDF).

October 06, 1992. Review. 9 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Acknowledge receipt of 6(a)(2) information & request additional data.
Document (PDF) (596 KB PDF).

November 12, 1992. Review. 5 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Acknowledge 6(a)(2) data, obtain copy of on-going study
Page 3 deleted - 6(a)(2) data, registrant data.
Document (PDF) (248 KB PDF).

November 20, 1992. Review. 11 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Acknowledge 6(a)(2) data; Request Full Report Maine Detects
Page 3-5 deleted - 6(a)(2) data, registrant data.
Document (PDF) (992 KB PDF).

November 23, 1992. Review. 13 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
To obtain additional atrazine, simazine and prometon data from Texas Dept. of Agric.
and Bookman-Edmonston Engr. (Glendale, Cal.)
Pages 3-7 deleted - 6(a)(2) data, registrant data.
Document (PDF) (742 KB PDF).

November 25, 1992. Review. 11 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
To obtain additional pesticide residue data from the Wisconsin Dept. of Agric., Trade
& Consumer Protection.
Document (PDF) (780 KB PDF).

December 02, 1992. Review. 5 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
To request additional pesticide residue data from the North Carolina Dept. of Agric.,
Pesticide Section.
Document (PDF) (259 KB PDF).

December 04, 1992. Memorandum. 2 Page(s).
Michael S. Metzger. Chemistry Branch II.
Atrazine and Simazine. Requested Data Waiver for Poultry Metabolism Studies.
No MRID Number. DP Barcode D184965. CBRS Number 10919.
Document (PDF) (99 KB PDF).

December 08, 1992. Review. 4 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Acknowledge receipt of report from State of California describing groundwater
monitoring MRID 424449-01.
Document (PDF) (187 KB PDF).

December 30, 1992. Memorandum. 6 Page(s).
K. Dockter. Chemistry Branch II.
Reregistration of Atrazine. Nitrosamine analysis of EPA Reg. No. 35915-6.
MRID 42298801. Quality control procedure information on pages 3 and 4 is not included.
Document (PDF) (297 KB PDF).

January 12, 1993. Review. 7 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Review 6(a)(2) Adverse Data Submission.
Document (PDF) (708 KB PDF).

January 19, 1993. Review. 62 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Review submission of 6(a)2 information for ground water.
Pages 5-62 deleted - 6(a)(2) data, registrant data.
Document (PDF) (423 KB PDF).

January 21, 1993. Memorandum. 5 Page(s).
George Ghali. Fungicide-Herbicide Branch.
Report of OPP RfD/Peer Review on Atrazine.
Document (PDF) (381 KB PDF).

February 09, 1993. Memorandum. 4 Page(s).
Stephen Funk. Chemistry Branch II.
Data Call-in for Hexachlorobenzene and Pentachlorobenzene in Technical Atrazine;
Waiver Request. MRID 42583101. Manufacturing process information on page 2 is
not included, page 4 deleted - manufacturing process, confidential appendix.
Document (PDF) (232 KB PDF).

March 19, 1993. Review. 12 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Acknowledge Receipt of 6(a)2 data and Request Additional Data (JAckson Co.
Florida) Delete pages 3-6 - 6(a)(2) data, registrant data.
Document (PDF) (686 KB PDF).

March 25, 1993. Memorandum. 5 Page(s).
Marion Copley. Toxicology Branch.
Assessment of Acute Risk due to Atrazine - Recommendations from the Ad Hoc
Committee Regarding the Use of Developmental Toxicity Studies.
Document (PDF) (288 KB PDF).

March 29, 1993. Review. 22 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Registrant has submitted a generic protocol for a modified large-scale retrospective
ground water monitoring study they plan to conduct in at least 20 states. Analysis of
degradates will be included.
Document (PDF) (1782 KB PDF).

April 13, 1993. Memorandum. 5 Page(s).
Karen Hamernik. Toxicology Branch.
Hydroxatriazine: Evaluation of a Rat Chronic Feeding/Oncogenicity Study Interim
Report. MRID 426629-01 Tox review 010158.
Document (PDF) (299 KB PDF).

April 22, 1993. Memorandum. 21 Page(s).
R. David Wells. Environmental Fate & Ground Water Branch.
Runoff Potentials for Triazine Alternatives.
Document (PDF) (2023 KB PDF).

May 05, 1993. Memorandum. 4 Page(s).
David Wells. Environmental Fate & Ground Water Branch.
Atrazine Data Review.
Document (PDF) (180 KB PDF).

May 10, 1993. Memorandum. 4 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Review Monitoring Data from California.
Document (PDF) (480 KB PDF).

May 13, 1993. Review. 26 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
To Acknowledge Receipt of Specific Residue Data and Request Well
Location/Identification Pages 5-26 deleted-registrant data.
Document (PDF) (295 KB PDF).

May 17, 1993. Review. 16 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Section 6(a)(2) review of adverse data MRID 426561-01.
Document (PDF) (1308 KB PDF).

June 03, 1993. Memorandum. 53 Page(s).
John Abbotts. Chemistry Branch.
Atrazine , Reregistration and Special Review. Registrant Ciba-Geigy Submission of
Overview (MRID 42547115) and Data on Metabolism in Corn and Sorghum (MRID 42547116),
Magnitude of the Residue in Corn (MRID 42547117), and Analytical Methods (MRIDs 42547718).
Document (PDF) (4133 KB PDF).
Attachment(s) Following:

June 03, 1993. Memorandum.
John Abbots. Chemistry Branch.
(continued) through 42547123) CBRS No. 10980. DP Barcode No. D185491.

*End of Attachments*

June 07, 1993. Memorandum. 17 Page(s).
John Abbotts. Chemistry Branch.
Atrazine, Special Review. Revised Anticipated Residues in Corn and Sorghum,
and Animal Commodities. No MRID No. No CBRS No. No DP Barcode No.
Document (PDF) (1357 KB PDF).

June 14, 1993. Review. 11 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Acknowledge receipt of 6(a)(2) data and request locations of contaminated wells
Pages 5-7 deleted - 6(a)(2) data, registrant data.
Document (PDF) (800 KB PDF).

June 14, 1993. Review. 11 Page(s).
Elizabeth Behl. Environmental Fate & Ground Water Branch.
Update of 6(a)(2) information-3 domestic wells contaminated with atrazine and
metolachlor in Howard Co., MD.
Document (PDF) (852 KB PDF).

June 24, 1993. Review. 7 Page(s).
David Wells. Environmental Fate & Ground Water Branch.
Response to a request for more data on detections of atrazine in Maine
MRID 426928-01.
Document (PDF) (328 KB PDF).

July 28, 1993. Memorandum. 14 Page(s).
Henry Spencer. Toxicology Branch.
Transmittal of the review of hormone levels in Fischer -344 rats treated with
atrazine technical (MRID 42146101) Tox review 010422.
Document (PDF) (757 KB PDF).

September 01, 1993. Memorandum. 2 Page(s).
K. Dockter. Chemistry Branch II.
Nitrosamine analysis of technical Atrazine, EPA Reg. No. 35915-6. MRID 42807301.
Quality control procedure information on pages 1 and 2 is not included.
Document (PDF) (252 KB PDF).

September 20, 1993. Memorandum. 9 Page(s).
Henry Spencer. Toxicology Branch.
Evaluation of the Draft Version of the Pathology Report of the Carcinogenicity Study
of Sprague-Dawley Rats Treated with Atrazine Technical
Pages 4-9 removed, registrant data.
Document (PDF) (172 KB PDF).

October 01, 1993. Review. 9 Page(s).
Toxicology Branch..
Reference Dose for Chronic Oral Exposure (RfD) for Atrazine.
Document (PDF) (916 KB PDF).

November 29, 1993. Memorandum. 21 Page(s).
Karen Hamernik. Toxicology Branch.
Atrazine: Review of a 21-Day Dermal Study (MRID 420899-02) Tox review 010683.
Document (PDF) (967 KB PDF).

December 08, 1993. Memorandum. 1 Page(s).
Henry Spencer. Toxicology Branch.
Upgrading a Rat Developmental Toxicity Study MRID # 41065202 by Revised
supplement MRID # 428737-02 which Replaces MRID 421655-01 Tox review 010706.
Document (PDF) (63 KB PDF).

December 17, 1993. Memorandum. 3 Page(s).
Henry Spencer. Toxicology Branch.
Review of Tumor Comparison Data for Atrazine, EPA Reg. No. 100-529.
MRID # 42777201. Tox review 010705.
Document (PDF) (167 KB PDF).

December 22, 1993. Memorandum. 12 Page(s).
Henry Spencer. Toxicology Branch.
Review of the Influence of Atrazine Ingestion on Steroid- Receptor Recognition
Pages 4-6 removed, registrant data. Registrant data on page 7 not included.
MRID 42041406.
Document (PDF) (637 KB PDF).

January 06, 1994. DER. 22 Page(s).
Alvaro Yamhure. Ecological Effects Branch.
STUDY TYPE: 72-5. Fish Life-Cycle Toxicity Test. Species Tested: Fathead Minnow
(Pimephales promelas). Atrazine Technical - Chronic Toxicity to the Fathead Minnow
(Pimephales promelas) During a Full Life-Cycle Exposure. MRID No. 425471-03.
Document (PDF) (1178 KB PDF).

January 26, 1994. Memorandum. 6 Page(s).
John Abbotts. Chemistry Branch.
Atrazine, Reregistartion and Special Review. Submitted Residue Data on Sugarcane.
MRID No. 43016503.
Document (PDF) (379 KB PDF).

February 09, 1994. Memorandum. 46 Page(s).
Henry Spencer. Toxicology Branch.
Transmittal of reviews of Carcinogenicity Studies in Sprague Dawley and Fischer 344
rats with Atrazine. MRID 422044-01 and MRID 422270-01 Pages 16-26, 45-46 removed,
registrant data. Tox review 010771.
Document (PDF) (2363 KB PDF).

March 01, 1994. Memorandum. 9 Page(s).
Thomas Crisp. Reproductive & Developmental Tox Branch.
Review and Evaluation of Ciba-Geigy's Atrazine/Hormone Studies (MRID 427439-02
and -03), along with their Overview 429425-00 Document.
Document (PDF) (878 KB PDF).

March 07, 1994. Memorandum. 27 Page(s).
Michael Beringer. Chemical Coordination Branch.
Revised Occupational and Residential Risk Assessment for the Triazines.
Document (PDF) (1613 KB PDF).

May 31, 1994. Memorandum. 5 Page(s).
Ralph Cooper. Reproductive Toxicology Branch.
Review of Atrazine Hormonal Data.
Document (PDF) (310 KB PDF).

July 21, 1994. Memorandum. 6 Page(s).
Mary Clock. Occupational & Residential Exposure Br.
Review of Atrazine Mixer/Loader/Applicator Exposure Study MRID No. 43016506.
Document (PDF) (351 KB PDF).

January 17, 1995. Memorandum. 8 Page(s).
Robert Zendzian. Toxicology Branch.
Atrazine, Dermal Absorption in Rats Pages 5-8 removed, registrant data.
MRID 433143-02 Tox review 011388.
Document (PDF) (264 KB PDF).

May 22, 1995. Memorandum. 5 Page(s).
John Abbotts. Chemistry Branch II.
Atrazine (080803), Reregistration Case No. 0062 & Special Review. Field
Metabolism Studies in Corn & Sorghum, Additional Data. CBRS No. 13059.
DP Barcode No. D198106. MRID No. 43048501.
Document (PDF) (274 KB PDF).

June 29, 1995. Memorandum. 38 Page(s).
John Abbotts. Chemistry Branch II.
Atrazine (080803), Reregistration Case No. 0062 & Special Review. Field
Metabolism Study in Sugarcane (MRID 43016503), Analytical Methods(MRID 43016504),
& Field Metabolism Study in Rotational Crops (MRID 43016505) CBRS No. 12889,
DP Barcode No. D197234.
Document (PDF) (2092 KB PDF).

July 06, 1995. Memorandum. 12 Page(s).
John Abbotts. Chemistry Branch II.
Atrazine (080803), Reregistration Case No. 0062 & Special Review. Ciba-Geigy
Comments on the Triazine PD1; additional Metabolism in sugar cane. CBRS No. 15632;
DP Barcode No. D215500; MRID No. 43598628.
Document (PDF) (658 KB PDF).

July 06, 1995. Memorandum. 14 Page(s).
John Abbotts. Chemistry Branch II.
Atrazine (080803), Reregistration Case No. 0062. Special Review. Ciba-Geigy
Comments on the Triazine PD1; Additional Data on Metabolism in Corn &
Sorghum.CBRS No. 15633, DP Barcode No. D215509, MRID 43598629.
Document (PDF) (712 KB PDF).

July 13, 1995. Memorandum. 109 Page(s).
Edwin Budd. Toxicology Branch.
Atrazine Reregistration; Reregistration Case No. 0062; Preliminary Review of
Combined Chronic Feeding/ Carcinogenicity Study in Rats Using G-34048 Technical
(Hydroxyatrazine) as the Test Material, Guideline 83-5.
Document (PDF) (1409 KB PDF).
Attachment(s) Following:

July 13, 1995. Memorandum.
Edwin Budd. Toxicology Branch.
(continued) Pages 18-34, 39-109 removed, registrant data. MRID 435320-01
Tox review 011603.

*End of Attachments*

August 01, 1995. Memorandum. 25 Page(s).
John Abbotts. Chemistry Branch II.
Atrazine (080803), Reregistration Case No. 0062 & Simazine (080807), Reregistration
Case No. 0070. Special Review, Ciba-Geigy Comments on the Triazine PD1,
Metabolism in Plants & Animals. CBRS No. 15634. DP Barcode No. D215329.
MRID No. 43598602.
Document (PDF) (1223 KB PDF).

August 01, 1995. Memorandum. 6 Page(s).
John Abbotts. Chemistry Branch II.
Atrazine (080803), Reregistration Case No. 0062. Special Review. Ciba-Geigy
Comments on the Triazine PD1; Magnitude of the Residue in Corn & Sorghum.
CBRS Nos. 15629, 15635, 15636, DP Barcode Nos. D215518,D215514,D215513,
MRID Nos. 43598632 (Sorghum), 43.
Document (PDF) (337 KB PDF).

August 07, 1995. Memorandum. 4 Page(s).
George Keitt. Biological Analysis Branch.
Response to Ciba-Geigy Regarding Triazine Benefits Analysis.
Document (PDF) (233 KB PDF).

August 07, 1995. Memorandum. 7 Page(s).
John Abbotts. Chemistry Branch II.
Atrazine, Reregistration Case No. 0062. Special Review. Ciba-Geigy Comments on
the Triazine PD1; Dietary Risk Assessment. CBRS No. 15630. DP Barcode No. D215553.
MRID No. 43598633.
Document (PDF) (277 KB PDF).

October 25, 1995. Memorandum. 58 Page(s).
Edwin Budd. Toxicology Branch.
Atrazine Reregistration; Reregistration Case No. 0062; Final Review of Combined
Chronic Feeding/Carcinogenicity Study in Rats Using G-34048 Technical (Hydroxyatrazine)
as the Test Material, Guideline 83-5. Pages 23-44 and 56-57 removed, registration data.
Document (PDF) (2233 KB PDF).

January 02, 1996. Memorandum. 19 Page(s).
John Abbotts. Chemistry Branch II.
Atrazine (080803), Reregistration Case No. 0062 and Special Review.
Hydroxyatrazine Metabolism in Goats. MRIDs 42925601, 43508501.
Document (PDF) (1439 KB PDF).

January 26, 1996. Memorandum. 47 Pages.
Robert P. Zendzian. Toxicology Branch I.
Atrazine, Metabolism Studies. DP Barcode: # D215354, D215358, D215359 &
D215361 Case #838836. MRID # 435986-03, 04, 05 & 06.
Document (PDF) (1149 KB PDF).

May 14, 1996. Memorandum. 9 Page(s).
John Abbotts. Chemistry Branch.
Atrazine (080803), Reregistration Case No. 0062 and Special Review.
Registrant Ciba-Geigy Corporation. Residues in Cow Milk. MRID 43934401.
Document (PDF) (641 KB PDF).

June 11, 1996. Memorandum. 21 Page(s).
Edwin Budd. Toxicology Branch.
Atrazine/Hydroxyatrazine: Recommendation Regarding Need for RfD Peer Review
Committee Meeting on Atrazine; Assignment of RfD for Hydroxyatrazine.
Document (PDF) (992 KB PDF).

July 11, 1996. Memorandum. 8 Pages.
Ruth Allen. Occupational & Residential Exposure Branch.
OREB Epidemiology Review and Recommendations for the Special Review of
Atrazine [Chemical #080803, Case #838836, (in three parts)].
Document (PDF) (242 KB PDF).

July 23, 1996. Memorandum. 61 Page(s).
Esther Rinde. Health Effects Division.
Carcinogenicity Peer Review Meeting on Atrazine (5th)
Pages 44 and 50-55 are removed, registration data.
Document (PDF) (3732 KB PDF).

August 06, 1996. Memorandum. 21 Page(s).
Kit Farwell. Health Effects Division.
Review of Special 1-Year Study with Atrazine in Female Rats (MRID 43934402).
Pages 5, 11-16 removed, registrant data. Tox review 012011.
Document (PDF) (1254 KB PDF).

September 12, 1996. Memorandum. 9 Page(s).
Shyam Mathur. Registration Support Branch.
Product Chemistry Review of EP; DP Barcode No.: D2262560; Reg./File Symbol
No.: 524-UOG; Product Name: Mon 58420 Herbicide. Product Ingredient Source
removed from page 1; Manufacturing Process removed from page 3; Confidential
Statement of Formula removed.
Document (PDF) (412 KB PDF).

September 13, 1996. Memorandum. 5 Page(s).
Jerome Blondell. Occupational & Residential Exposure Branch.
Review of Two Atrazine Epidemiology Studies. MRID Nos. 440086-01 & -02.
Document (PDF) (311 KB PDF).

September 19, 1996. Memorandum. 7 Pages.
Jerome Blondell. Occupational & Residential Exposure Branch.
Review of Incident Reports and Critique of Low Birth Weight Study related to
Atrazine Exposure. DP Barcode: D227323 and D215478. MRID No. : 435986-09.
Document (PDF) (193 KB PDF).

October 24, 1996. Memorandum. 15 Pages.
Melba S. Morrow. Toxicology Branch I.
Completed Atrazine Actions, summaries and Comments. MRID Nos. 435986-11, -12,
-13, -14, -15, -16, -17, -18, -19, -20, -21, -23, -24; 43933403, 43934404, 05 and 06.
Document (PDF) (706 KB PDF).

December 12, 1996. Memorandum. 13 Page(s).
Wallace Powell. Registration Support Branch.
EPA File Symbol: 55947-150 DP Barcode: D229670 acute toxicity data; revised
product formulation. MRIDs 44093804 through -07.
Document (PDF) (429 KB PDF).

December 31, 1996. Memorandum. 17 Page(s).
Robert Zendzian. Toxicology Branch.
Atrazine ,Review of Rhesus Monkey Metabolism and Human Dermal Absorption
Studies Pages 6-12 removed, registrant data. MRID 439344-07, -08, -09, -10.
Tox review 012127.
Document (PDF) (562 KB PDF).

January 22, 1997. Memorandum. 3 Pages.
David Jaquith. Occupational & Residential Exposure Branch.
OREB review of. ...DP Barcode: 215525, D215523, D215546.
MRID Nos. 435986-38, 441521-07, 441521-06.
Document (PDF) (56 KB PDF).

June 05, 1997. Memorandum. 6 Pages.
Thomas M. Crisp. National Center for Environmental Assessment.
Review of Atrazine Rat Studies.
Document (PDF) (272 KB PDF).

July 28, 1997. Memorandum. 27 Pages.
Jess Rowland. Cancer Assessment Review Committee.
Cancer Assessment Review Committee Meeting on Atrazine.
Document (PDF) (1090 KB PDF).

December 16, 1997. Memorandum. 2 Pages.
Melba S. Morrow. Registration Action Branch I.
ID No. 080803. Atrazine Articles. DP Barcode: D239246.
Document (PDF) (48 KB PDF).

January 07, 1998. DER. 11 Page(s).
Mary Menetrez. Pesticides Health Effects Group for HED.
Study Type: 85-2; Dermal Absorption - Man. MRID 44152114.
Tox review 012444 excerpt.
Document (PDF) (579 KB PDF).

January 07, 1998. Memorandum. 41 Pages.
Roger Hawks. Toxicology Branch II.
Atrazine - Reviews of three studies examining: 1. Intravenous metabolism in the
monkey: 2. Oral metabolism in the monkey; and 3. Dermal absorption in humans.
DP Barcode: D240618. MRID Nos. 44152112, 44152113, 44152114. Tox review No. 012444.
Document (PDF) (1332 KB PDF).

January 27, 1998. DER. 22 Page(s).
William Greear. Toxicology Branch II.
Subchronic Feeding - Rat (82-1). Tox Review No. 012483.
Document (PDF) (1254 KB PDF).

February 23, 1998. Memorandum. 19 Pages.
Roger Hawks. Toxicology Branch II.
Atrazine -Review of metabolism study (MRID 443154-05) in the rhesus monkey using
14C-atrazine. This study is an amendment to a previous monkey metabolism study -
MRID 441521-13. DP Barcode: D239250. Tox review No. 012495.
Document (PDF) (453 KB PDF).

April 16, 1998. Memorandum. 11 Page(s).
Roger Hawks. Toxicology Branch.
Atrazine - Review of Dominant Lethal study in the mouse. Pages 9-11 removed,
registrant data. MRID 42637003 Tox review 012578.
Document (PDF) (498 KB PDF).

April 24, 1998. Memorandum. 22 Page(s).
James Wolf. Environmental Risk Branch 3.
Drinking Water Assessment of HCB and PCB.
Document (PDF) (1399 KB PDF).

December 12, 1998. DER. 24 Page(s).
Rosmarie Faust. Oak Ridge National Laboratory for HED.
Diaminochlorotriazine (G-28273). 90-Day Subchronic Dietary Toxicity Study in Rats
(82-1). MRID 430132-07.
Document (PDF) (1257 KB PDF).

January 04, 1999. Memorandum. 35 Page(s).
Roger Hawks. Residue Chemistry Analysis Branch.
Atrazine - Review of a 2-year oncogenicity study, MRID 44544701.
Document (PDF) (2395 KB PDF).

February 09, 1999. Memorandum. 8 Page(s).
Roger Hawks. Risk Characterization & Analysis Branch.
Atrazine Qualitative Risk Assessment Based On Female Sprague-Dawley Rat
Dietary Study Tox review 013218.
Document (PDF) (198 KB PDF).

March 24, 1999. Memorandum. 102 Page(s).
Anna Bearden. Registration Action Branch, HED.
Atrazine and Simazine- Reviews of five studies examining: 1)Short-term effects on
the rat estrus cycle; 2) Antiestrogenicity in rats; 3) In vitro antagonism of estrogen
action and in vitro binding with the estrogen receptor; 4) Estrogenic responses in MCF.
Document (PDF) (5564 KB PDF).
Attachment(s) Following:

March 24, 1999. Memorandum.
Anna Bearden. Registration Action Branch, HED.
(continued) breast cancer cells; 5) estrogenic responses in vivo (rat) and in vitro.
MRID 43598614, 43598617, 43598618, 43598619, 4394403. Tox review 013281.

*End of Attachments*

July 07, 1999. Memorandum. 3 Page(s).
Roger Hawks. Reregistration Branch HED.
Atrazine Quantitative Risk Assessment (Q1) Based on Sprague-Dawley Female Rat
Chronic Dietary Studies Using mg/kg b.w.^3/4's /day Cross-Species Scaling Factor
Tox review 013553.
Document (PDF) (181 KB PDF).

September 01, 1999. Memorandum. 2 Page(s).
Roger Hawks. Reregistration Branch HED.
Atrazine ED10's and LED10's Based on Sprague-Dawley Female Rat Dietary Studies
Tox review 013706.
Document (PDF) (121 KB PDF).

November 17, 1999. Memorandum. 69 Page(s).
Henry Nelson. Environmental Risk Branch.
Review of Novartis document entitled "Human Exposure to Atrazine and Simazine
via Ground and Surface Water: Update - IV." MRID #44597601.
Pages 17-69 removed, registrant data.
Document (PDF) (1336 KB PDF).

November 18, 1999. Memorandum. 75 Page(s).
Henry Nelson. Environmental Risk Branch.
Review of supplemental study entitled "Supplement to EPA MRID No. 44597601:
Cummulative Community Water Systems (CWS) Population and Exposure
Distributions." Submitted by Novartis in response to request from EFED (no MRID #).
Pages 11-75 removed, registra.
Document (PDF) (772 KB PDF).

December 20, 1999. Memorandum. 11 Page(s).
Roger Hawks. Reregistration Branch HED.
Atrazine: Review of a pilot study which evaluated a method of measuring the
proestrus afternoon LH and prolactin surges in Sprague-Dawley female rats.
MRID 43934404. Tox review 013952.
Document (PDF) (1192 KB PDF).

December 20, 1999. Memorandum. 12 Page(s).
Roger Hawks. Reregistration Branch HED.
Atrazine Review of a method validation study which evaluated a method of measuring
the proestrus afternoon LH and prolactin surges in Sprague-Dawley female rats.
MRID 43934405. Tox review 013951.
Document (PDF) (1215 KB PDF).

February 15, 2000. Memorandum. 23 Page(s).
Roger Hawks. Health Effects Division.
Atrazine: Twenty-eight day study evaluating the effect of atrazine on the estrous cycle
and the proestrus afternoon luteinizing hormone (LH) and prolactin surges.
MRID 43934406. Tox review 013996.
Document (PDF) (1787 KB PDF).

February 29, 2000. Memorandum. 29 Page(s).
Roger Hawks. Reregistration Branch HED.
Atrazine: Review of a 26 week study evaluating the effect of atrazine exposure on the
proestrus afternoon luteinizing hormone surge and the estrous cycle. MRID 44152102.
Tox review 014013.
Document (PDF) (2406 KB PDF).

August 28, 2000. Memorandum. 22 Page(s).
Roger Hawks. Reregistration Branch HED.
Atrazine - 2nd Report of the Hazard Identification Assessment Review Committee.
Tox review 014308.
Document (PDF) (1834 KB PDF).

November 14, 2000. Memorandum. 17 Pages.
Brenda Tarplee. FQPA Safety Factor Committee.
ATRAZINE - Re-evaluation by the FQPA Safety Factor Committee. Tox review No. 014375.
Document (PDF) (944 KB PDF).

March 25, 2002. Memorandum. 14 Page(s).
Jerome Blondell. Chemistry Exposure Branch 1.
Review of Atrazine Cancer Epidemiology Studies: "A Follow-up Study of Mortality
Amoung Workers at the Novartis St. Gabriel Plant" "Follow-up Study of Cancer
Incidence Amoung Workers in Triazine-related Operations....
MRID 45152101 and 45518401.
Document (PDF) (1044 KB PDF).
Attachment(s) Following:

November 14, 2001. Memorandum.
Aaron Blair. Department of Health and Human Services.
I have reviewed the document "A follow-up study of cancer incidence amoung
workers in triazine-related operations in the Novartis St. Gabriel plant"....

December 18, 2001. Memorandum.
Edward Giovannucci. Harvard Medical School.
As you requested, the following is my review of the final report "A follow-up
study of cancer incidence...".

*End of Attachments*

April 08, 2002. Memorandum. 15 Pages.
Thomas Steeger. Environmental Fate and Effects Division.
EFED Review of 20-day Toxicity Study of Atrazine to Largemouth Bass.
DP Barcode: D281928. MRID No. 456223-04.
Document (PDF) (1401 KB PDF).

April 08, 2002. Memorandum. 17 Pages.
Brenda Tarplee. FQPA Safety Factor Committee.
ATRAZINE/DACT - Reassessment Report of the FQPA Safety Factor Committee.
NOTE: THIS REPORT REPLACES THE PREVIOUS REPORT OF THE FQPA
SAFETY FACTOR COMMITTEE DATED NOVEMBER 14, 2000 (HED DOC. NO. 014375).
TXR NO. 0050638.
Document (PDF) (1103 KB PDF).

April 23, 2002. Memorandum. 20 Page(s).
Catherine Eiden. Reregistration Branch 3 HED.
ATRAZINE. Review of Probabalistic Exposure Assessment for Drinking Water from
28 Community Water Systems. DP Barcode: 278468.
Document (PDF) (1021 KB PDF).

May 13, 2002. DER. 36 Pages.
Thomas Steeger. ERB I.
DER on Partial Chronic Toxicity of Atrazine TAI to Freshwater Invertebrates -
Daphnia pulicaria. MRID No. 452995-04.
Document (PDF) (2135 KB PDF).

October 30, 2002. Memorandum. 32 Pages.
Linda Taylor. Reregistration Branch I.
ATRAZINE - Submission by Syngenta Crop Protection, Inc. DP Barcode: D248708.
MRID Nos. 45711302, 45711303, 45722401.
Document (PDF) (1314 KB PDF).

November 22, 2002. Memorandum. 28 Page(s).
Catherine Eiden. Reregistration Branch 3 HED.
Atrazine: Response to Syngenta's Comments on the EPA's April 16, 2002 Revised
Human Health Risk Assessment and Associated Documents for the Reregistration
Eligibility Decision (RED). PC Code: 080803. DP Barcode D284708.
Document (PDF) (1810 KB PDF).

November 26, 2002. Memorandum. 11 Page(s).
Linda Taylor. Reregistration Branch 1 HED.
ATRAZINE - NRDC Comments on Preliminary Risk Assessment. Respond to comments.
DP Barcode D284707.
Document (PDF) (776 KB PDF).

February 13, 2003. Memorandum. 3 Pages.
Arnet W. Jones. Herbicide and Insecticide Branch.
Assessment of Potential Mitigation Measures for Atrazine.
Document (PDF) (53 KB PDF).

June 02, 2003. Memorandum. 598 Page(s).
Steven Bradbury. Environmental Fate & Effects Division.
Transmittal of Data Evaluation Records for June Scientific Advisory Panel Meeting
on Atrazine. {attached DERs #1 to #17 regarding hormonal/ gonadal effects on
amphibians/ frogs} MRIDs 45867701 thru 45867711, 45867501.
Document (PDF) (24324 KB PDF).

July 27, 2004. DER. 23 Page(s).
Arthur Putt. Chemistry Branch II.
Atrazine Technical SF - Toxicity to Midge (Chironomus tetans) Under Flow-Through
Conditions. MRID No. 45904001.
Document (PDF) (918 KB PDF).

July 27, 2004. DER. 33 Page(s).
Arthur Putt. Chemistry Branch II.
Atrazine Technical SF - Toxicity to Midge (Chironomus tetans) During a 10-Day
Sediment Exposure. MRID No. 45904002.
Document (PDF) (1537 KB PDF).

August 25, 2004. Memorandum. 5 Pages.
William Phillips. Biological Analysis Branch.
Atrazine/Propazine Use on Sorghum.
Document (PDF) (279 KB PDF).

August 23, 2005. Review. 2 Pages.
Sami Malak. Technical Review Branch.
PRODUCT CHEMISTRY REVIEW OF: AN End-Use Product [X] DP BARCODE #: D320359
EPA RECEIVED DATE: 11/AUG/2005 REG No. : 19713-553 PRODUCT NAME: Drexel Simazine 90DF
MRID: 466098-01 FOOD USE [X] COMPANY NAME : Drexel Chemical Company. ACTION CODE: 570.
Document (PDF) (30 KB PDF).

October 11, 2005. Memorandum. 5 Pages.
William Phillips. Biological Analysis Branch.
Atrazine and Propazine Use Rates in Sorghum for Potential Co-occurrence (DP 308550).
Document (PDF) (202 KB PDF).

March 16, 2006. DER. 22 Pages.
Anita Pease. ERB III.
Data Evaluation Report on the Toxicity of Atrazine to Sheepshead Minnow
(Cyprinodon variegates), Early Life Cycle. DP Barcode: 322057. MRID No.: 466482-03.
Document (PDF) (868 KB PDF).

March 27, 2006. DER. 28 Pages.
Anita Pease. ERB III.
AQUATIC INVERTEBRATE LIFE CYCLE TEST GUIDELINE 72-4(C). Atrazine (G-30027) - Life-Cycle
Toxicity Test with Mysids (Americamysis bahia). MRID No.: 466482-02. DP Barcode: D322057.
Document (PDF) (963 KB PDF).

March 28, 2006. Memorandum. 65 Pages.
Jose Morales et al. Reregistration Branch 3.
Triazine Cumulative Risk Assessment. HED Human Health Risk Assessment In Support of
the Reregistration Eligibility Decisions for Atrazine, Simazine and Propazine.
PC Codes: 080808, 080803, 080807. DP 317976.
Document (PDF) (2715 KB PDF).

Publications | Glossary | A-Z Index | Jobs


Local Navigation


Jump to main content.