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Index of Cleared Science Reviews for Methidathion (Pc Code 100301)

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November 23, 1982. Memorandum. 86 Pages.
Christine F. Chaisson. Toxicology Branch.
Methidathion/Alfalfa Risk Assessment, No. 7F1983. Tox review No. 002348.
Document (PDF) (1630 KB PDF).

January 15, 1987. Memorandum. 2 Page(s).
Leung Cheng. Residue Chemistry Branch.
EPA File No. 87-CA-12. Proposed Section 18 Specific Exemption for Use of
Methidathion (Supracide) on Kiwi. No Accession Number. RCB No. 1794.
Document (PDF) (141 KB PDF).

February 26, 1987. Memorandum. 25 Pages.
Marion Copley. Toxicology Branch.
I.D. # 100-530: Methidathion: Chronic oncogenic study in rats.
Tox. Chem. No. 378B. Accession #s 263322-26. Tox review No. 005743.
Document (PDF) (860 KB PDF).

May 17, 1987. DER. 8 Pages.
John Noles. Ecological Effects Branch.
Aquatic Invertebrate Life Cycle. Species Tested: Daphnia magna.
MRID No. 157352.
Document (PDF) (426 KB PDF).

May 18, 1987. DER. 12 Pages.
John Noles. Ecological Effects Branch.
Estuarine Invertebrate Life Cycle. Species Tested: Mysid Shrimp (Mysidopsis bahia).
MRID No. 157351.
Document (PDF) (555 KB PDF).

July 14, 1987. Memorandum. 1 Page(s).
Edwin Tinsworth. Registration Division.
Expedited Comparative Review of Ecological Effects of Azodrin/Supracide/Capture
and of Diazinon/Metasystox R/ Cygon.
Document (PDF) (63 KB PDF).

July 23, 1987. Memorandum. 8 Page(s).
Harry Craven. Ecological Effects Branch.
Comparative Risk Assessment on Ecological Effects of Azodrin, Supracide,
Metasystox R, Furadan 4F, Capture, Cygon, and Diazinon to Avian Species.
Document (PDF) (452 KB PDF).

September 08, 1987. Memorandum. 70 Pages.
Marion Copley. Toxicology Branch.
I.D. 100-510: Methidathion: Miscellaneous toxicity data required for the Registration
standard. Tox. Chem. No. 378B. Tox review No. 006385.
Document (PDF) (2510 KB PDF).

October 13, 1987. Memorandum. 7 Pages.
Bernice Fisher. Toxicology Branch.
Methidathion, Updated Qualitative Risk Assessment - Mouse Study. Caswell No. 378B.
Tox review No. 006497.
Document (PDF) (136 KB PDF).

November 30, 1987. Memorandum. 11 Page(s).
Maxie Jo Nelson. Residue Chemistry Branch.
Tolerance Proposal: Kiwi at 0.1 ppm.
Document (PDF) (563 KB PDF).

February 19, 1988. Memorandum. 11 Page(s).
Esther Rinde. Scientific Mission Support Staff.
Peer Review of Methidathion.
Document (PDF) (501 KB PDF).

May 27, 1988. Memorandum. 9 Page(s).
Robert Tomerlin. Residue Chemistry Branch.
Dietary Exposure Analysis for Methidathion.
Document (PDF) (714 KB PDF).

September 02, 1988. Memorandum. 10 Pages.
William B. Greear. Toxicology Branch.
UDMH - Submission of a 1-Year Interim Report of the 2-Year Chronic Oncogenicity
Study in Rats. TOX Chem No.: 366G. Project No.: 8-0857. Tox review No. 006856.
Document (PDF) (259 KB PDF).

November 25, 1988. Memorandum. 3 Page(s).
Martha Bradley. Dietary Exposure Branch.
PP #8E3690, PP #8E3691. PP 8E3692, PP 8E3693. Inadvertent Residues of
Diazinon, Methidathion, Chlorpyrifos and Ethyl Parathion. MRID Nos. 408284-00,
-01, 408285-00, -01, 408286-00, -01, 408287-00, -01. DEB Nos. 4434, 4432, 4431, 4433
Document (PDF) (195 KB PDF).

January 23, 1989. Memorandum. 28 Pages.
Marion Copley. Toxicology Branch 1.
California Department of Food and Agriculture - EPA Toxicology review for
Methidathion. (Tox. Chem. #378B).
Document (PDF) (1190 KB PDF).

March 16, 1989. Memorandum. 3 Page(s).
Maxie Jo Nelson. Dietary Exposure Branch.
PP #7E3566. Methidathion in or on Kiwifruit. Amendment of December 2, 1988.
DEB#: 4769. HED#: 9-0585. MRID#: 409313-00, -01.
Document (PDF) (175 KB PDF).

April 13, 1990. Memorandum. 7 Page(s).
Martha Bradley. Dietary Exposure Branch.
California Study of Unintentional Residues of Diazinon, Methidation,
Chlorpyrifos, and Ethyl Parathion.
Document (PDF) (586 KB PDF).

June 02, 1993. DER. 26 Pages.
Henry T. Craven. Ecological Effects Branch.
Freshwater Invertebrate Life-Cycle Flow-Through Test. Species Tested: Daphnia magna.
MRID No. 420817-07.
Document (PDF) (1201 KB PDF).

November 10, 1993. Memorandum. 7 Page(s).
George Ghali. Health Effects Division.
RfD/Peer Review Report of Methdathion.
Document (PDF) (641 KB PDF).

February 20, 1996. Usage Report. 2 Page(s).
A. Grube. EPA.
Methidathion Usage Table Listed by Crop.
Document (PDF) (73 KB PDF).

June 11, 1996. Memorandum. 54 Page(s).
William Smith. Chemistry Branch.
Methidathion. Reregistration Case 0034, Chemical No. 100301. Product and Residue
Chemistry Chapters for Reregistration Eligibility Decision Document (RED).
Document (PDF) (3446 KB PDF).

July 19, 1996. Memorandum. 27 Page(s).
Bruce Kitchens. Occupational & Residential Exposure Branch.
Occupational and Residential Assessment and Recommendations for the
Reregistration Eligibility Decision Document for Methidathion.
Document (PDF) (1507 KB PDF).

November 21, 1996. Memorandum. 7 Page(s).
William Smith. Chemistry Branch.
Methidathion. Reregistration Case No. 0034, Chemical 100301. Addendum to
Residue Chemistry Chapter of RED. Registrant's Request for Continued Use on
Timothy and Alfalfa in Kittitas County, WA. CBRS Nos. 17292 & 17291.
Document (PDF) (343 KB PDF).

December 03, 1996. Memorandum. 8 Page(s).
William Smith. Chemistry Branch.
Methidathion. Reregistration Case No. 0034, Chemical 100301. Follow-up to Residue
Chemistry Chapter of the RED. Anticipated Residues for Acute Dietary Risk
Assessment. CBRS No. 17467. DP Barcode D228746.
Document (PDF) (412 KB PDF).

January 08, 1997. Memorandum. 37 Page(s).
Brian Steinwand. Science Analysis Branch.
Dietary Exposure Analysis for Methidathion in Support of the
Reregistration Eligibility Decision.
Document (PDF) (2539 KB PDF).

October 08, 1997. Memorandum. 5 Page(s).
Jess Rowland. Science Analysis Branch HED.
Methdathion - FQPA Requirement - Report of the Hazard Identification
Assessment Review Committee.
Document (PDF) (289 KB PDF).

December 17, 1997. Memorandum. 7 Page(s).
James Lin. Environmental Risk Branch.
Tier 1: Screen for Drinking Water Assessment of Methidathion
PC Code: 100301; CAS# 950-37-8.
Document (PDF) (344 KB PDF).

May 19, 1998. Memorandum. 3 Page(s).
James Lin. Environmental Risk Branch.
Response to February 12, 1998 EPA Data Call-In Review for Methidathion on
Drinking Water Exposure and Risk Assessments. MRID# 44518301.
Document (PDF) (153 KB PDF).

June 17, 1998. Memorandum. 3 Page(s).
Yung Yang. Toxicology Branch.
Methidathion: Rebuttal of Toxicology Endpoint Selection.
Document (PDF) (194 KB PDF).

October 16, 1998. Memorandum. 28 Page(s).
William Smith. Chemistry Branch.
Methidathion. Chem No. 100301. Acute Dietary Risk Assessment (Monte Carlo analysis)
DP Barcode D243700.
Document (PDF) (1170 KB PDF).

December 30, 1998. Memorandum. 5 Page(s).
James Lin. Environmental Risk Branch.
Methidathion - Tier 3 Drinking Water Assessment PC Code: 100301.
Document (PDF) (214 KB PDF).

January 08, 1999. Memorandum. 3 Page(s).
R. B. Perfetti. Chemistry Branch.
The HED Metabolism Committee Meeting Held on April 4, 1995: Methidathion
(MRID Nos. 43399701 and -02, Barcode D210041).
Document (PDF) (132 KB PDF).

January 08, 1999. Review. 6 Page(s).
Melba Morrow. Toxicology Branch.
Toxicology Endpoint Selection Document Chemical Name: Methidathion.
Document (PDF) (237 KB PDF).

January 13, 1999. Memorandum. 23 Page(s).
Robert Travaglini. Risk Characterization & Analysis Branch.
METHIDATHION. Revised Short Format HED Chapter of RED. Chemical Number 100301.
DP Barcode D252049.
Document (PDF) (1466 KB PDF).

October 27, 1999. Usage Analysis. 4 Page(s).
Tim Keily. EPA.
Quantitative Usage Analysis for Methidathion. Data years 1987-1997.
Document (PDF) (233 KB PDF).

November 03, 1999. Memorandum. 20 Page(s).
William Smith. Chemistry & Exposure Branch I.
Methidathion. Chem No. 100301. Updated Acute Dietary Exposure Analysis to
Reflect Percent Crop Treated Data for Sunflowers. DP Barcode D260190.
Document (PDF) (748 KB PDF).

November 30, 1999. RED Chapter. 80 Page(s).
Environmental Fate and Effects Division..
Methidathion - Environmental Fate and Effects RED Chapter.
Document (PDF) (3590 KB PDF).

December 08, 1999. Risk Assessment. 74 Page(s).
Robert Travaglini. Health Effects Division.
Human Health Risk Assessment, Methidathion.
Document (PDF) (4166 KB PDF).

September 24, 2008. Memorandum. 2 Page(s).
James Goodyear. Environmental Review Branch 3.
Guideline studies on the effect of Methidathion on the early life stage
of fathead minnows. DP Barcode: D287592.
Document (PDF) (1153 KB PDF).
Attachment(s) Following:

September 23, 2008. DER. 23 Page(s).
James Goodyear. Environmental Review Branch 3.
Toxicity of Methidathion to Fish Early Life Stage. DP Barcode D287592.
MRID Nos. 001573-53 & 458227-01.

*End of Attachments*

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