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Endangered Species Effects Determinations and Consultations

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• Effects Determinations for the California Red-legged Frog
• Previous Determinations

Effects Determinations

Effects Determination for Diazinon and the Barton Springs Salamander

Transmittal Letter (PDF) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, US Fish and Wildlife Service (5/14/07) (2 pp, 77.2K)

Effects Memorandum (PDF) from Thomas Steeger, Ph.D., Senior Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental fate and Effects Division (5/9/07) (1 pp, 56.6K)

Diazinon Analysis (PDF): Risks of Diazinon Use to the Federally Listed Endangered Barton Springs Salamander (inclusive of appenices) (5/9/07) (221 p, 6.71MB)

Effects Determination for Metolachlor and the Barton Springs Salamander

Transmittal Letter (PDF) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, US Fish and Wildlife Service (5/14/07) (2 pp, 77.6K)

Effects Memorandum (PDF)from Edward Odenkirchen, Ph.D, Senior Scientist, Environmental Fate and Effects Division (et.al) to Arthur-Jean B. Williams, Associate Director, Environmental fate and Effects Division (5/2/07) (2 pp, 62.8K)

Metolachlor Analysis (PDF) : Risks of Metolachlor Use to Federally Listed Endangered Barton Springs Salamander (5/3/07) (62 pp, 882 K)

• Appendix A: Appendix A: Status and Life History of the Barton Springs Salamander (PDF) (14 pp, 118.3K)
• Appendix B: Ecological Effects (PDF) (18 pp, 252.8K)
• Appendix C: Support Information for PRZM Scenario Development (PDF) (41 p, 1.36MB)
• Appendix D: PRZM Output (PDF) (44 pp, 518.8K)
• Appendix E: Risk Quotient Method and LOCs (PDF) (3 pp, 57.6K)
• Appendix F: ECOTOX Papers (PDF) (59 pp, 353.5 K)

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Effects Determinations for 2,4-dichlorophenoxyacetic acid (2,4-D)

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (12/1/04) (3 pp, 19K)

Memorandum (PDF) from Shannon Borges, Cara Dzubow, Greg Orrick and Ann Stavola to Arthur-Jean B. Williams, Chief, Environmental Field Branch (11/30/04) (2 pp, 34K)

2,4-D Analysis (PDF) (102 pp, 623K)

• Attachment A: Quantitative Usage Analysis for 2,4-D (PDF) (3 pp, 22K)
• Attachment B: 2,4-D draft risk assessment (PDF) (652 pp, 6.9 MB)
• Attachment C: 2,4-D Master Label (PDF) (1 p, 8K)
• Attachment D: Washington State 2,4-D Use Summary (PDF) (12 pp, 396K)
• Attachment E: EFED Tier II Aquatic Exposure Assessment 2,4-D (PDF) (27 pp, 255K)
• Attachment F1: 2,4-D Label 2217-703 (PDF) (57 pp, 1.57MB)
• Attachment F2: 2,4-D Label 48273-15 (PDF) (10 pp, 359K)
• Attachment F3: 2,4-D Label 228-354 (PDF) (6 pp, 160K)

Effects Determinations for Malathion

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (12/1/04) (2 pp, 18 K)

Memorandum (PDF) from Jeannette Martinez and Jennifer Leyhe to Arthur-Jean B. Williams, Chief, Environmental Field Branch (11/30/04) (2 pp, 16 K)

Malathion Analysis (PDF) (110 pp, 755 K)

• Malathion Attachment A: EFED Chapter Malathion (PDF)
• Malathion Attachment B: Malathion Quantitative Usage Analysis (PDF) (13 pp, 230 K)
• Malathion Attachment C: Washington State Malathion Use Summary (PDF) (53 pp, 985 K)
• Malathion Attachment D-1: Malathion Aquatic Exposure Assessment for Agricultural Uses (PDF) (5 pp, 62 K)
• Malathion Attachment D-2: Malathion Aquatic Exposure Assessment for Mosquito Uses (PDF) (9 pp, 74 K)
• Malathion Attachment E: Malathion CDPR County Usage (PDF) (16 pp, 232 K)
• Malathion Attachment F: Malathion Usage for California Counties by ESUs (PDF) (40 pp, 388 K)
• Malathion Attachment G: Malathion Usage for PNW Counties by ESUs (PDF) (80 pp, 1.42 MB)
• Malathion Attachment H: Malathion Sample Labels
  • Atrapa™ULV
    
  EPA Reg. Number: 1812-407
  • Malathion 8 Spray
    
  EPA Reg. Number: 2935-83
  • Malathion 8EC
    EPA Reg. Number:51036-214
  • Mal 50-OS
    EPA Reg. Number: 45385-66
  • Malathion 25% WP
    EPA Reg. Number: 34704-291
  • Malathion 5 Dust
    EPA Reg. Number: 10163-142
  • Malathion 8
    EPA Reg. Number: 10163-21
  • Pratt Malathion 80
    EPA Reg. Number: 769-961
  • Durham Malathion 8EC
    EPA Reg. Number: 5481-123

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Effects Determinations for Triclopyr BEE

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (12/1/04) (2 pp, 18 K)

Memorandum (PDF) from Genifer Maree Tarkowski to Arthur-Jean B. Williams, Chief, Environmental Field Branch (11-30-04) (2 pp, 17 K)

Triclopyr BEE Analysis (PDF) (58 pp, 292 K)

• Attachment A: Triclopyr Reregistration Eligibility Decision (PDF)
• Attachment B: Triclopyr BEE national label 26719-40 (PDF) (7 pp, 45K)
  Triclopyr BEE national label 62719-260 (PDF) (7 pp, 103K)
• Attachment C: SLN Triclopyr BEE label (PDF) (2 pp, 14K)
• Attachment D: Quantitative Usage Analysis for Triclopyr BEE (PDF) (5 pp, 71K)
• Attachment E: USGS Triclopyr Usage Map (GIF, 18K)
• Attachment F: Washington State Dept. of Agriculture Use Summary (PDF) (7 pp, 218K)
• Attachment G: Actual Triclopyr BEE Usage in CA Counties (27 pp, 159K)

Effects Determinations for Lindane

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (12/1/04) (2 pp, 13K)

Memorandum (PDF) from Michael Patterson to Arthur-Jean B. Williams, Chief, Environmental Field Branch (11-29-04) (2 pp, 18K)

Lindane Analysis (PDF) (73 pp, 563K)

• Attachment 1: Reregistration Eligibility Decision for Lindane (148 pages)
• Attachment 2: Lindane Sample Labels
  • Clean Crop Lindane 25 EC-LF
  • Gustafson Lindane 30C Flowable
  • Drexel Lindane 300 Flowable
  • AGSCO Inc. DB-Green
• Attachment 3: USGS Usage Map for Lindane

Effects Determinations for Bromoxynil

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (12/1/04) (2 pp, 13K)

Memorandum (PDF) from Michael Patterson to Arthur-Jean B. Williams, Chief, Environmental Field Branch (11-26-04) (2 pp, 17K)

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Bromoxynil Analysis (PDF) (105 pp, 967K)

• Attachment 1: Reregistration Eligibility Decision for Bromoxynil (PDF) (299 pp 1.38MB)
• Attachment 2: Bromoxynil Sample Label
  • Terra International Moxy 2E Tank Mix
• Attachment 3: USGS Usage Map for Bromoxynil

Effects Determinations for Pendimethalin

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (12/1/04) (2 pp, 14K)

Memorandum (PDF) from Kurt Pluntke to Arthur-Jean B. Williams, Chief, Environmental Field Branch (12-01-04) (2 pp, 17K)

Pendimethalin Analysis (PDF) (69 pp, 385K)

• Attachment A: Pendimethalin RED (PDF)
• Attachment B: Washington State Pendimethalin Use Summary (PDF) (19 pp, 222 K)
• Attachment C: Actual Pendimethalin Usage in California Counties by ESU (PDF) (32 pp, 454 K)
• Attachment D: Maximum Estimated Pendimethalin Usage for Pacific Northwest States by ESU (PDF) (84 pp, 1.62 MB)
• Attachment E: EFED Science Chapter (PDF) (48 pp, 281 K)
• Attachment F: Pendimethalin Sample Labels
  • Pendulum WDG Herbicide
  • Pentagon DG
  • Prowl H20
  • Prowl 3.3 EC
  • Pursuit Plus EC
  • Preclaim EW
  • Anderson's ProTurf Fertilizer Plus Weedgrass Control
• Attachment G: Aquatic Exposure EECs for Pendimethalin for Use on Selected Crops in WA, OR and CA (26 pages)

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Effects Determinations for Carbofuran

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (12/1/04) (2 pp, 22 K)

Memorandum (PDF) from Genifer Maree Tarkowski to Arthur-Jean B. Williams, Chief, Environmental Field Branch (12-01-04) (19 K)

Carbofuran Analysis (PDF) (70 pp, 383K )

• Attachment A: Carbofuran National Labels
• 279-2876 (PDF) (5 pp, 46K)
• 279-3023 (PDF) (3 pp, 46K)
• Attachment B: Carbofuran SLN Labels
  • California grapes 3 (PDF) (2 pp, 128K)
  • Idaho potatoes (PDF) (1 p, 97K)
  • Idaho sugar beets (PDF) (1 p, 97K)
  • Oregon nursery uses (PDF) (1 p, 55K)
  • Oregon sugarbeets (PDF) (1 p, 4K)
  • California grapes 1 (PDF) (1 p, 52K)
  • California grapes 2 (PDF) (1 p, 52K)
  • California ornamentals (PDF) (1 p, 51K)
  • Oregon potatoes (PDF) (72 pp, 8K)
  • Washington potatoes (PDF) (1 p, 92K)
• Attachment C: Carbofuran Quantitative Usage Analysis (PDF) (4 pp, 119K)
• Attachment D: USGS Carbofuran Usage Map (GIF) (1 p, 29K, GIF)
• Attachment E: Washington State Carbofuran Use Information
  • Washington State Carbofuran Use Summary (PDF) (9 pp, 372K)
  • Carbofuran (Furadan) Use on Wheat in Washington State (PDF) (1 p, 28K)
• Attachment F: Carbofuran Use Closure Memo(PDF) (1 p, 23K)
• Attachment G: Estimated Environmental Concentrations for Selected Carbofuran Use Scenarios (PDF) (4 pp, 39K)
• Attachment H: Actual Carbofuran Usage in California Counties (PDF) (13 pp, 79K)
• Attachment I: Maximum Estimated Carbofuran Usage for Pacific Northwest States (PDF) (49 pp, 525K)

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Effects Determinations for Glyphosate on Pacific Salmonid ESUs

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (10/12/04) (2 pp, 19 K)

Memorandum (PDF) from Michael Patterson, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (10/7/04) (2 pp, 19 K)

Glyphosate Analysis (PDF) (117 pp, 1.09 MB)

• Attachment 1: Registration Eligibility Decision for Glyphosate (259 pp, 4.39 MB)
• Attachment 2: Glyphosate Sample Labels
• Rattler (PDF)
• Gly-Flo Herbicide (PDF)
• Glyphosate Original (PDF)
• Cornerstone
• Attachment 3: USGS Usage Map for Glyphosate (PDF) (1 pg, 300 K)

Effects Determinations for Hexazinone

Determination of No Effect for Hexazinone for Three Pacific Salmonid ESUs for Alfalfa and Forestry Uses

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (10/9/04) (2 pp, 19 K)

Memorandum from Jennifer Leyhe to Arthur-Jean B. Williams, Chief, Environmental Field Branch (2 pp, 20 K)

Hexazinone Analysis (28 pp, 165 K)

• Hexazinone Attachment A: Hexazinone Reregistration Eligibility Decision
• Hexazinone Attachment B: Hexazinone Quantitative Usage Analysis (1 p, 11 K)
• Hexazinone Attachment C: Hexazinone Sample Labels
  • DuPont™ Velpar® DF , EPA Reg. No. 352-581
  • DuPont™ Velpar® ULW DF, EPA Reg. No. 352-582
  • DuPont™ Velpar® AlfaMax™ MP, EPA Reg. No. 353-634
  • Pronone® Power Pellet Herbicide, EPA Reg. No. 33560-41

Effects Determinations for Metribuzin
Determination of No Effect for Metribuzin

Memorandum from Michael Patterson, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (07/29/04) (1 p, 42 K)
Metribuzin Analysis (90 pp, 691 K)

• Attachment 1: Metribuzin Reregistration Eligibility Decision (734 K)
• Attachment 2: Metribuzin Quantitative Use Analysis (1 p, 38 K)
• Attachment 3: Metribuzin Sample Labels
  Axiom DF Herbicide (TIFF)
  Domain DF Herbicide (TIFF)
• Attachment 4: USGS Distribution of Metribuzine Use

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Effects Determinations for Oxyfluorfen
Determination of no effect for Oxyfluorfen

• Memorandum from Nikiba Daughtry to Arthur-Jean B. Williams, Chief, Environmental Field Branch (07/23/04) (2 pp, 69 K)
• Oxyfluorfen Analysis (35 pp, 327 K)

Effects Determinations for Coumaphos
Determination of no effect for Coumaphos

• Memorandum from Jennifer Leyhe to Arthur-Jean B. Williams, Chief, Environmental Field Branch (07/28/04) (2 pp, 79 K)
• Coumaphos Analysis (26 pp, 257 K)

Effects Determinations for Tebuthiuron
Determination of no effect for Tebuthiuron

• Memorandum from Ann Stavola to Arthur-Jean B. Williams, Chief, Environmental Field Branch (07/29/04) (2 pp, 60 K)
• Tebuthiuron Analysis (28 pp, 285 K)

Effects Determinations for Dimethoate

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National

Memorandum from Michael Patterson, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (07/15/04) (1 pp, 45 K)

Dimethoate Analysis (115 pp, 386 K)

• Attachment 1: EFED Chapter for Dimethoate Reregistration Eligibility Decision (72 pp, 328 K)
• Attachment 2: Dimethoate Sample Labels
• Dimethoate 2.67 EC (TIFF)
• Cymate 267 (TIFF)
• Dimethoate 25 WP (TIFF)
• Attachment 3: USGS Usage Map for Dimethoate

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Effects Determinations for Diflubenzuron

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (07/29/04) (2 pp, 63 K)

Memorandum from Michael Patterson, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (07/15/04) (1 p, 47 K)

Diflubenzuron Analysis (91 pp, 781 K)

• Attachment 1: Diflubenzuron Reregistration Eligibility Decision (214 pp, 767 K)
• Attachment 2: EPA Diflubenzuron Quantitative Use Analysis (1 p, 20 K)
• Attachment 3: Diflubenzuron Sample Labels
  • Micromite 4L (TIFF)
  • Dimilin 2F (TIFF)
  • Dimilin 80WGS (TIFF)
  • Labyrinth termite bait (TIFF)
  • Vigilante (TIFF)
• Attachment 4: USGS Usage Map for Diflubenzuron

Effects Determinations for 1,3-dichloropropene

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (07/29/04) (2 pp, 63 K)

Memorandum from Nikiba Daughtry to Arthur-Jean B. Williams, Chief, Environmental Field Branch (07/29/04) (2 pp, 68 K)

1,3-dichloropropene Analysis (56 pp, 400 K)

• Attachment A: 1,3-dichloropropene Reregistration Eligibility Decision (203 pp, 3.3 MB)
• Attachment B: 1,3-dichloropropene Usage for California Counties (16 pp, 195 K)
• Attachment C: 1,3-dichloropropene Usage for Pacific Northwest States (44 pp, 1.3 MB)
• Attachment D: 1,3-dichloropropene Washington State Use Summary (8 pp, 309 K)
• Attachment E: 1,3-dichloropropene Aquatic Exposure Assessment (17 pp, 154 K)
• Attachment F: 1,3-dichloropropene Sample Labels
  • Tri-Form 35 (TIFF)
  • Telone C-15 (TIFF)
  • Tri-Cal Trilone II (TIFF)
  • Telone EC (TIFF)
  • InLine (TIFF)
  • Telone C-35 CA (TIFF)
  • Telone C-17 CA (TIFF)
  • Telone II CA (TIFF)
• Attachment G: 1,3-dichloropropene Application Equipment Figures (2 pp, 3.2 MB)

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Effects Determinations for Forestry Uses of 2,4-D ethylhexyl ester on One Listed Pacific Salmonid ESU

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (05/10/04) (2 pp, 19 K)

Determination of no effect for 2,4-D ethylhexyl ester for Pacific Anadromous Salmonids (5/10/04) (1 p, 19 K)

2,4-D ethylhexyl ester Analysis (39 pp, 204 K)

• Attachment 1: Draft EFED Chapter of the 2,4-D ethylhexyl ester Registration Eligibility Decision, (645 pp, 6.92 MB)
• Attachment 2: 2,4-D ethylhexyl ester Sample Labels
• Weedone 638 Solventless
• Crop Rider LV-4D
• Riverdale 1D + 1DP Low Vol
• Oasis herbicide
• Attachment 3: USGS Usage Map

Effects Determinations for Forestry Uses of Triclopyr BEE on Three Listed Pacific Salmonid ESUs

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (05/10/04) (2 pp, 19 K)

Memorandum from Michael Patterson, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (05/10/04) (1 p, 19 K)

Triclopyr BEE Analysis (31 pp, 156 K)

• Attachment 1: Triclopyr Reregistration Eligibility Decision
• Attachment 2: Sample Labels
• Garlon 3A
• Garlon 4
• Attachment 3: USGS Usage Map
  

Effects Determinations for Acephate

Determination of no effect for Acephate for Pacific Anadromous Salmonids (03/31/04) (2 pp, 12.7 K)

Acephate Analysis (88 pp, 1.92 MB)

• Attachment 1: Acephate Reregistration Eligibility Decision
• Attachment 2: EFED Chapter of the Acephate Registration Eligibility Decision
• Attachment 3: Acephate Quantitative Use Analysis (3 pp, 92 K)
• Attachment 4: Acephate Sample Labels
• Precise (4 pp, 161 K TIFF)
• Orthene Ornamental Insect Spray (3 pp, 79.3 K TIFF)
• Orthene Tree & Ornamental Spray (13 pp, 308 K TIFF)
• Whitmire PT 289 Orthene (1 p, 901 K TIFF)
• Whitmire PT 1310 Total Release Insecticide (1 p, 96.6 K TIFF)
• Acephate 75SP (3 pp, 156 K TIFF)
• Orthenex Garden Insect & Disease Control Concentrate (5 pp, 191 K TIFF)
• Bonide Systemic Insecticide Granules (5 pp, 137 K TIFF)

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Effects Determinations for Naled

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (04/1/04) (2 pp, 11.3 K)

Memorandum from Michael Patterson, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (04/1/04) (1 p, 16.4 K)

Naled Analysis (64 pp, 364 K)

• Attachment A: Naled Interim Reregistration Eligibility Decision
• Attachment B: EFED Chapter for Naled Reregistration Eligibility Decision
• Attachment C: Naled Quantitative Use Analysis (6 pp, 113 K)
• Attachment D: Use of Naled in California, by County (8 pp, 79.7 K)
• Attachment E: Use of Naled in the Pacific Northwest, by County (72 pp, 1.45 MB)
• Attachment F: Washington State Department of Agriculture Estimate of Naled Use (10 pp, 276 K)
• Attachment G: Sample labels
  • Trumpet EC Insecticide (7 pp, 279 K TIFF)
  • Dibrom 8 Miscible (3 pp, 216 K TIFF)

Effects Determinations for Linuron

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (03/31/04) (2 pp, 8.28 K)

Memorandum (PDF) from Michael Patterson, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (03/31/04) (1 p, 16.5 K)

Linuron Analysis (PDF) (69 pp, 417 K)

• Attachment 1: Linuron Reregistration Eligibility Decision
• Attachment 2: EFED Linuron Registration Eligibility Decision Chapter (PDF) (100 pp, 3.48 MB)
• Attachment 3: Linuron Quantitative Use Analysis (2 pp, 33 K)
• Attachment 4: Linuron Sample Labels
• Micro Flo Linuron 4L (519 pp, 98 K TIFF)
• Linex 4L (8 pp, 547 K TIFF)
• Attachment 5: USGS Distribution of Linuron Use

Effects Determinations for Methamidophos

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (03/31/04) (2 pp, 10.5 K)

Memorandum (PDF) from Michael Patterson, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (03/31/04) (1 p, 16.9 K)

Methamidophos Analysis, PDF (65 pp, 408 KB)

• Attachment 1: Methamidophos Interim Reregistration Eligibility Decision
• Attachment 2: EFED Methamidophos Reregistration Eligibility Decision Chapter
• Attachment 3: Methamidophos Quantitative Use Analysis (PDF) (1 p, 210 K)
• Attachment 4: Methamidophos Sample Labels
  • Valent Monitor Technical (PDF) (6 pp, 172 K TIFF)
  • Monitor 4 Spray (9 pp, 314 K TIFF)

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Effects Determinations for Methidathion

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (4/1/04) (2 pp, 11.2 K)

Memorandum (PDF) from Nikiba Daughtry to Arthur-Jean B. Williams, Chief, Environmental Field Branch (04/1/04) (2 pp, 17.8 K)

Methidathion Analysis (PDF) (57 pp, 290 K)

• Attachment A-1: Methidathion Interim Reregistration Eligibility Decision
• Attachment A-2: EFED Chapter of Methidathion Registration Eligibility Decision
• Attachment B: Methidathion Washington State Use Summary (PDF) (6 pp, 232 K)
• Attachment C: Methidathion Aquatic Exposure Assessment (PDF) (7 pp, 58.1 K)
• Attachment D: Methidathion Usage for California Counties (PDF) (10 pp, 47.0 K)
• Attachment E: Methidathion Usage for Pacific Northwest States (PDF) (68 pp, 743 K)
• Attachment F: Methidathion Sample Labels
  • Syngenta Methidathion Technical (4 pp, 143 KTIFF)
  • Gowan Methidathion Technical (4 pp, 138 K TIFF)
  • Supracide 25W (7 pp, 362 K TIFF)
  • Methidathion 50S (8 pp, 161 K TIFF)
  • Supracide 25WP (8 pp, 352 KTIFF)
  • Supracide Master label (23 pp, 587 K TIFF)
  • Supracide 2E (25 pp, 622 K TIFF)
• Attachment G: Methidathion Quantitative Use Analysis

Effects Determinations for Methyl Parathion

Transmittal letter (PDF) from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (4/1/04) (11.0 KB, 2 pages)

Memorandum (PDF) from Nikiba Daughtry to Arthur-Jean B. Williams, Chief, Environmental Field Branch (04/1/04) (2 pp, 17.8 KB)

Methyl Parathion Analysis (PDF) (57 pp, 310 K)

• Attachment A-1: Methyl Parathion Interim Reregistration Eligibility Decision
• Attachment A-2: EFED Chapter for the Methyl Parathion Interim Registration Eligibility Decision
• Attachment B: Use Summary for Methyl Parathion in Washington State (10 pp, 272 K)
• Attachment C: Methyl Parathion Aquatic Exposure Assessment (22 pp, 389 K)
• Attachment D: Methyl Parathion Usage for California Counties (9 pp, 51 K)
• Attachment E: Methyl Parathion Usage for Pacific Northwest States (93 pp, 881 K)
• Attachment F: Methyl Parathion Sample Labels
• 4lb. Methyl parathion EC (Helena chemical) (13 pp, 533 K TIFF)
• Cheminova Methyl parathion 4 EC (9 pp, 341 K TIFF)
• Griffin Methyl parathion MUP (technical) (9 pp, 240 K TIFF)
• Cheminova Methyl parathion Technical (5 pp, 183 K TIFF)
• Penncap-M Micro encapsulated Insecticide (11 pp, 356 K TIFF)
• Drexel IDA Seis-Tres 6-3 (6 pp, 328 K TIFF)
• Drexel Methyl parathion 4 (5 pp, 279 K TIFF)
• Drexel Methyl parathion 4E (5 pp, 273 K TIFF)
• Methyl parathion 5-E (5 pp, 211 K TIFF)
• Clean Crop Methyl parathion 4E (5 pp, 271 K TIFF)
• Micro Flo Methyl parathion 4 EC (13 pp, 445 K TIFF)
• Declare Emulsifiable Insecticide concentrate (13 pp, 563 K TIFF)

Effects Determinations for Trifluralin

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (04/1/04) (10.9 KB, 2 pages)

Memorandum from Michael Patterson, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (04/1/04) (17.1 KB, 1 page)

Trifluralin Analysis (300 KB, 63 pages)

• Attachment A: Trifluralin Reregistration Eligibility Decision
• Attachment B: Trifluralin Sample Label
• Treflan HFP (1.54 MB, 27 pages)
• Attachment C: EPA Estimated Usage of Trifluralin (176 KB, 4 pages)
• Attachment D: Trifluralin Usage for California Counties (130 kb, 22 pages)
• Attachment E: Trifluralin Usage for Pacific Northwest States (1.15 MB, 128 pages)
• Attachment F: WA State Dept. of Agriculture Summary of Trifluralin Use (770 KB, 40 pages)

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Effects Determinations for Captan

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (60 KB, 2 pages)

Memorandum from Michael Patterson, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (70 KB, 1 page)

Captan Analysis (70 KB, 92 pages)

• Attachment 1: Captan Reregistration Eligibility Decision
• Attachment 2: EFED Registration Eligibility Decision Chapter (5.68 MB)
• Attachment 3: Representative Labels
  • Dragon Captan Wettable (190 KB, 5 pages, TIFF)
  • Captan 80 WDG (157 KB, 3 pages, TIFF)
  • Captan 4L (279 KB, 4 pages, TIFF)
  • Home Orchard Spray (128 KB, 5 pages, TIFF)
  • Security Home Fruit Spray (150 KB, 5 pages, TIFF)
  • Captan-Vitavax-Metalaxyl Seed Treatment For Soybeans (134 KB, 2 pages, TIFF)
  • Diazinon-Lindane-Captan (165 KB, 4 pages, TIFF)
  • Gustafson Captan Lindane 12.5-25 Seed Protectant (122 KB, 2 pages, TIFF)
  • Gustafson Captan 400 (293 KB, 2 pages, TIFF)
• Attachment 4: Washington State Captan Use Summary (473 KB, 10 pages)

Effects Determinations for Chlorothalonil

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (73 KB, 2 pages)

Memorandum from Larry Turner, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (61 KB, 2 pages)

Chlorothalonil Analysis (683 KB, 132 pages)

• Attachment 1: Reregistration Eligibility Decision
• Attachment 2: Washington State Chlorothalonil Use Summary (295 KB, 38 pages) Attachment 3: White paper submitted by primary registrant in support of chlorothalonil (confidential business information removed) (538 KB, 21 pages)
• Attachment 4: Labels
  • Bravo 825 (1.27 MB, 29 pages, TIFF)
  • Countdown L&G (1.56 MB, 42 pages, TIFF)
  • Daconil 720 (734 KB, 22 pages, TIFF)
  • Busan 1192 (88.1 KB, 1 page, TIFF)
  • Riverdale Resound 90DF (598 KB, 14 pages, TIFF)

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Effects Determinations for Disulfoton

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (56 KB, 2 pages)

Memorandum from Michael Patterson, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (60 KB, 1 page)

Disulfoton Analysis (551 KB, 94 pages)

• Attachment 1: Interim Reregistration Eligibility Decision
• Attachment 2: Quantitative Usage Analysis
• Attachment 3: EFED Registration Eligibility Document
• Attachment 4: Disulfoton Products in Active Use (102 KB, 2 pages)
• Attachment 5: Disulfoton Products Canceled or Removed from Use (400 KB, 8 pages)
• Attachment 6: Sample Labels
  • Di-Syston 8 (446 KB, 10 pages, TIFF)
  • Lilly/ Miller Feed & Shield Systemic Rose Care 6-10-4 (138 KB, 3 pages, TIFF)
  • Bonide Systemic Granules 1% (53.4 KB, 1 pages, TIFF)
  • Jobe’s Spikes Systemic Insecticide With 12-18-6 Fertilizer (64.2 KB, 1 page, TIFF)
  • Attachment 7: Washington State Disulfoton Use Summary (377 KB, 9 pages)

Effects Determinations for Ethoprop

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (62 KB, 2 pages)

Memorandum from Michael Patterson, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (62 KB, 1 page)

Ethoprop Analysis (714 KB, 80 pages)

• Attachment 1: Interim Reregistration Eligibility Decision
• Attachment 2: EFED Supplement for Reregistration Eligibility Decision
• Attachment 3: California Guidelines for Ethoprop Use (44 KB, 1 page)
• Attachment 4: Correction Factors for Application Computation (Crops Treated/Crops Planted - 1997) (32 KB, 1 page)
• Attachment 5: Labels
  • Mocap 15% Granular Nematicide-Insecticide (317 KB, 9 pages, TIFF)
  • Mocap 20% Granular Lock ’n Load (281 KB, 7 pages, TIFF)
  • Mocap EC Nematicide-Insecticide (582 KB, 14 pages, TIFF)
• Attachment 6: Washington State Ethoprop Use Summary (182 KB, 5 pages)

Effects Determinations for Fenamiphos

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (55 KB, 2 pages)

Memorandum from Ann Stavola to Arthur-Jean B. Williams, Chief, Environmental Field Branch (48 KB, 1 page)

Fenamifos Analysis (490 KB, 79 pages)

• Attachment 1: Fenamiphos Estimated Annual Agricultural Use
• Attachment 2: Interim Reregistration Eligibility Decision
• Attachment 3: Fenamiphos Environmental Risk Assessment
• Attachment 4: Fenamiphos Facts
• Attachment 5: Washington State Fenamiphos Use Summary (248 KB, 4 pages)
• Attachment 6: Representative Labels
  • Nemacur 3 (753 KB, 9 pages, TIFF)
  • Nemacur 3 Turf (237 KB, 5 pages, TIFF)
  • Nemacur 15% Granular (248 KB, 5 pages, TIFF)
  • Nemacur 10% (281 KB, 6 pages, TIFF)

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Effects Determination for Iprodione

Determination of no effects for Iprodione for Pacific Anadromous Salmonids (150 KB, 14 pages)

• Attachment: Washington State Iprodione Use Summary (483 KB, 11 pages)

Effects Determinations for Phosmet

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (61 KB, 2 pages)

Memorandum from Larry Turner, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (67 KB, 1 page)

Phosmet Analysis (915 KB, 173 pages)

• Attachment 1: Phosmet Interim Reregistration Eligibility Decision
• Attachment 2: Ecological Risk Assessment
• Attachment 3: Quantitative Usage Analysis (6-8-99, 4 pages)
• Attachment 4: Washington State Phosmet Use Summary (319 KB, 6 pages)
• Attachment 5: Representative Labels
  • Imidan 70-W (386 KB, 7 pages, TIFF)
  • Imidan 2.5-EC (262 KB, 5 pages, TIFF)
  • Imidan 50-WSB (391 KB, 7 pages, TIFF)
  • Imidan 5 Dust (159 KB, 5 pages, TIFF)
  • Imidian 70-WSB (387 KB, 7 pages, TIFF)

Effects Determinations for Bromacil and Lithium Bromacil

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Laurie Allen, Acting Director, Office of Protected Resources, National Marine Fisheries Service (60 KB, 2 pages)

Memorandum from Larry Turner, Ph.D., to Arthur-Jean B. Williams, Chief, Environmental Field Branch (78 KB, 2 pages)

Bromacil and Lithium Bromacil Analysis (320 KB, 45 pages)

• Attachment 1: Representative Labels
  • DuPont Hyvar X-L (388 KB, 8 pages, TIFF)
  • DuPont Hyvar X (547 KB, 11 pages, TIFF)
  • Weed Out Non-Select Weed Killer (114 KB, 2 pages, TIFF)
  • Non-selective Herbicide #2 (102 KB, 3 pages, TIFF)
  • V-1500 Weed Killer 920 (78.3 KB, 3 pages, TIFF)
• Attachment 2: Bromacil Reregistration Eligibility Decision

Amended Formal Consultation Request for Diazinon (24.6 KB, 1 page)

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Effects Determination for Terbacil

Determination of no effect for Terbacil for Pacific Anadromous Salmonids (07/29/03) (629 KB, 13 pages)

Effects Determination for Simazine

Determination of No Effect for Simazine relative to the Barton springs salamander

Memo to the Files (PDF) - from Arthur-Jean B. Williams, Acting Director, Environmental Fate and Effects Division, EPA to the Files (2pp, 30K)

Transmittal memo (PDF) - From Anita Pease, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Acting Director, Environmental Fate and Effects Division (September 20, 2007) (1 pp, 27K)

Effects Determination (PDF) - Effects determination for atrazine relative to the pallid sturgeon (September 20, 2007) (90 pp, 4.62 MB)

• Appendix A: Ecological Effects (PDF) - (50 pp, 978K)
• Appendix B: Multi AI Product Analysis (PDF) - (2 pp, 92K)
• Appendix C: Life History (PDF) - (14 pp, 183K)
• Appendix D: Aquatic Incidents (PDF) - (5 pp, 183K)
• Appendix E: RQ Method and LOCs (PDF) - (3 pp, 121K)
• Appendix F: ECOTOX Papers Not Used (PDF) - (230 pp, 3.93 MB)

Determination of no effect for Simazine (07/29/03)

Transmittal letter from EPA to NOAA, (2 pp, 44K)

Memorandum from Larry Turner, Ph.D., Environmental Field Branch, to Arthur-Jean B. Williams, Chief, Environmental Field Branch (07/29/03) (41 p, 3K)

Simazine Analysis of Risk to Endangered and Threatened Salmon and Steelhead (31 pp, 551K)

• Attachment 1: Simazine Quantitative Usage Analysis (9 pp, 198K)
  

Effects Determination for Azinphos-methyl

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Don R. Knowles, National Marine Fisheries Service (95 KB, 2 pages)

Memorandum from Larry Turner, Ph.D., and William Erickson, Ph.D., Environmental Field Branch, to Arthur-Jean B. Williams, Chief, Environmental Field Branch (51 KB, 1 page)

Azinphos-methyl Analysis (July 23, 2003) (290 KB, 105 pages)

• Attachment 1: Azinphos-methyl Interim Reregistration Eligibility Decision
• Attachment 2: Agreement Between the Environmental Protection Agency and the Registrants of Pesticide Products Containing Azinephos Methyl
• Attachment 3: Representative Oryzalin Labels

  To view labels go to http://www.epa.gov/pesticides/pestlabels/ and search for the following registration numbers and then the dates indicated:

  - 3125-301 (April 26, 2000)
  - 10163-138 (August 23, 1999)
  - 66222-12 (August 26, 1999)

• Attachment 4: Quantitative Usage Analysis For Azinphos-methyl
• Attachment 5: EFED Ecological Risk Assessment and Revision of Draft EFED Reregistration Eligibility Decision (RED) Science Chapter to Include 60 Day Comments

Effects Determination for Dichlobenil

Memorandum from Ann Stavola, Biologist, Environmental Field Branch, to Arthur-Jean Williams, Chief, Environmental Field Branch (66 KB, 2 pages)

Dichlobenil Analysis of Risks (709 KB, 33 pages)

• Attachment 1: Dichlorbenil Reregistration Eligibility Decision (RED) (October 1998)


• Attachment 2: Dichlobenil Estimated Annual Agricultural Use - USGS Pesticide 1992 Annual Use Map

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Effects Determination for Phorate

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Don R. Knowles, National Marine Fisheries Service (August 1, 2003) (23 KB, 2 pages)

Memorandum from Larry Turner, Ph.D., Environmental Field Branch and Edward Odenkirchen, Ph.D., Environmental Risk Branch 1, to Arthur-Jean B. Williams, Chief, Environmental Field Branch (August 1, 2003) (21 KB, 2 pages)

Phorate Analysis (81 KB, 72 pages)

• Attachment 1: Phorate Interim Reregistration Eligibility Decision
• Attachment 2: Representative Oryzalin Labels
  
  To view labels go to http://www.epa.gov/pesticides/pestlabels/ and search for the following registration numbers and then the dates indicated:

  - 241-257 (August 19, 2001 and December 27, 2000)
  - 241-53 (February 8, 1996 and June 16, 1994)

• Attachment 3: Phorate Estimated Annual Agricultural Use - USGS-Pesticides 1992 Annual Use Map
• Attachment 4: EPA's response to comments from American Cyanamid Co.; Revision of exposure estimates for surface and ground water; Updated EFED RED chapter (64 pages)

Effects Determination for Diuron

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Don R. Knowles, National Marine Fisheries Service (August 1, 2003) (23 KB, 2 pages)

Memorandum from Larry Turner, Ph.D., Environmental Field Branch, to Arthur-Jean B. Williams, Chief, Environmental Field Branch (August 1, 2003) (21 KB, 2 pages)

Diuron Analysis (1,113 KB, 115 pages)

• Attachment 1: Diuron Environmental Risk Assessment for the Reregistration of Diuron (578 KB, 71 pages,)
• Attachment 2: Representative Diuron Labels
  
  To view labels go to http://www.epa.gov/pesticides/pestlabels/ and search for the following registration numbers and then the dates indicated:

  - 1812-362 (August 5, 2002)
  - 1812-257 (August 5, 2002)
  - 352-505 (December 11, 2002)

• Attachment 3: Diuron Quantitative Usage Analysis (March 20, 2001) (34 KB, 4 pages)

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Effects Determination for Prometon

Effects Determination for Prometon Relative to the Barton Springs Salamander

Transmittal letter (PDF) - From Arthur-Jean B. Williams, Acting Director, Environmental Fate and Effects Division, USEPA to Bryan Arroyo, Acting Assistant Director for Endangered Species, US Fish and Wildlife Service (September 21, 2007) (2 pp, 32K)

Transmittal memo (PDF) - From Edward Odenkirchen, Ph.D, Senior Scientist; Paige Doelling Brown, Ph.D., Fisheries Biologist; James Hetrick, Ph.D., Senior Scientist; Thomas Bailey, Ph.D, Acting Branch Chief, Environmental Risk Branch 1, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Acting Director, Environmental Fate and Effects Division, USEPA (September 18, 2007) (2 pp, 39K)

Effects Determination (PDF) - Effects determination for prometon relative to the Barton springs salamander (September 18, 2007) (54 pp, 1.13 MB)

• Appendix A: Life History (PDF) - (14 pp, 213K)
• Appendix B: PRZM Scenarios (PDF) - (40 pp, 1.28 MB)
• Appendix C: Ecological Effects (PDF) - (18 pp, 22K)
• Appendix D: ECOTOX Bibliography (PDF) - (72 pp, 1.32 MB)
• Appendix E: RQ Method and LOCs (PDF) - (3 pp, 82K)
• Appendix F: RQ Calculations (PDF) - (2 pp, 28K)
• Appendix G: Multi-AI Products (PDF) - (4 pp, 101K)

Effects Determination for Atrazine

Six Aquatic Chesapeake Bay Watershed Species and 1 Alabama River Watershed Species

U.S. FWS Response to Informal Consultation Request for atrazine from Marjorie A. Nelson, Chief, Consultation & HCPs Branch, Consultation, Habitat Conservation Planning, Recovery and State Grants, U.S. Fish and Wildlife Service to Arthur Jean B. Williams, Associate Director, Environmental Fate and Effects Division, Office of Pesticide Programs, U.S. EPA (February 11, 2008) (18 pp, 1.13 MB)

Effects Determination for Atrazine Relative to the Pallid Sturgeon

Transmittal letter (PDF) - From Arthur-Jean B. Williams, Acting Director, Enviornmental Fate and Effects Division, USEPA to Bryan Arroyo, Acting Assistant Director for Endangered Species, US Fish and Wildlife Service (September 17, 2007) (2 pp., 30K)

Input from Syngenta (PDF) - Letter from Dan Campbell, Senior Regulatory Product Manager II, Syngenta Crop Protection Inc, to Arthur-Jean B. Williams, Office of Pesticide Programs, US Environemtnal Protection Agency re: Supporting Data for EPA's Effect Determinations for Atrazine Relative to Three Federally Listed Endangered Freshwater Mussels and Two Federally Listed Endangered Freshwater Fish. (August 14, 2007) (2 pp, 58K)

• Supporting Data for EPA's Effect Determinations (PDF) - Supporting Data for EPA's Effect Determinations for Atrazine Relative to Three Federally Listed Endangered Freshwater Mussels and Two Federally Listed Endangered Freshwater Fish: Report No T005015-07: Assessment (August 13, 2007) (46 pp, 1.76 MB)
  

Transmittal memo (PDF) - From Anita Pease, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (August 29, 2007) (2p., 38.9K)

Effects Determination (PDF) - Effects determination for atrazine relative to the pallid sturgeon (August 29, 2007) (136 pp, 10.2 MB)

• Appendix A: Ecological Effects (PDF) - (132 pp, 1.14 MB)
• Appendix B: Multi AI Product Analysis (PDF) - (9 pp, 96.5K)
• Appendix C: Life History (PDF) - (16 pp, 233K)
• Appendix D: Ecological Monitoring Data (PDF) - (45 pp, 933K)
• Appendix E: Incident Data Base Information (PDF) - (11 pp, 89K)
• Appendix F: RQ Method and LOCs (PDF) - (3 pp, 43K)
• Appendix G: ECOTOX Papers Not Used (PDF) - (309 pp, 1.94 MB)
• Appendix H: Landcover Maps (PDF) - (6 pp, 268K)
• Appendix I: Baseline and Cumulative (PDF) - (20 pp, 202K)

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Effects Determination for Atrazine Relative to Three Listed Freshwater Mussel Species

Transmittal letter (PDF) - From Arthur-Jean B. Williams, Acting Director, Enviornmental Fate and Effects Division, USEPA to Bryan Arroyo, Acting Assistant Director for Endangered Species, US Fish and Wildlife Service (September 17, 2007) (2 pp, 32K)

Input from Syngenta (PDF) - Letter from Dan Campbell, Senior Regulatory Product Manager II, Syngenta Crop Protection Inc, to Arthur-Jean B. Williams, Office of Pesticide Programs, US Environemtnal Protection Agency re: Supporting Data for EPA's Effect Determinations for Atrazine Relative to Three Federally Listed Endangered Freshwater Mussels and Two Federally Listed Endangered Freshwater Fish. (August 14, 2007) (2 pp, 58K)

• Supporting Data for EPA's Effect Determinations (PDF) - Supporting Data for EPA's Effect Determinations for Atrazine Relative to Three Federally Listed Endangered Freshwater Mussels and Two Federally Listed Endangered Freshwater Fish: Report No T005015-07: Assessment (August 13, 2007) (46 pp, 1.76 MB)
  

Transmittal memo (PDF) - From Anita Pease, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (August 29, 2007) (2pp, 38.9K)

Effects Determination (PDF) - Effects determination for atrazine relative to three listed freshwater mussel species (August 29, 2007) (173 pp, 7.3 MB)

• Appendix A: Ecological Effects (PDF) - (131 pp, 1.12 MB)
• Appendix B: Multi AI Product Analysis (PDF) - (8 pp, 78.9K)
• Appendix C: Life History (PDF) - (23 pp, 390K)
• Appendix D: Ecological Monitoring Data (PDF) - (32 pp, 484K)
• Appendix E: Incident Data Base Information (PDF) - (10 pp, 59.5K)
• Appendix F: RQ Method and LOCs (PDF) - (2 pp, 29.6K)
• Appendix G: ECOTOX Papers Not Used (PDF) - (308 pp, 1.93 MB)
• Appendix H: Baseline and Cumulative (PDF) - (13 pp, 130K)
• Appendix I: Riparian Analysis (PDF) - (38 pp, 17.9 MB)

Effects Determination for Atrazine Relative to the Topeka Shiner and its Critical Habitat

Transmittal letter (PDF) - From Arthur-Jean B. Williams, Acting Director, Enviornmental Fate and Effects Division, USEPA to Bryan Arroyo, Acting Assistant Director for Endangered Species, US Fish and Wildlife Service (September 17, 2007) (2 pp., 30 Kb)

Input from Syngenta (PDF) - Letter from Dan Campbell, Senior Regulatory Product Manager II, Syngenta Crop Protection Inc, to Arthur-Jean B. Williams, Office of Pesticide Programs, US Environemtnal Protection Agency re: Supporting Data for EPA's Effect Determinations for Atrazine Relative to Three Federally Listed Endangered Freshwater Mussels and Two Federally Listed Endangered Freshwater Fish. (August 14, 2007) (2 pp., 58 Kb)

• Supporting Data for EPA's Effect Determinations (PDF) - Supporting Data for EPA's Effect Determinations for Atrazine Relative to Three Federally Listed Endangered Freshwater Mussels and Two Federally Listed Endangered Freshwater Fish: Report No T005015-07: Assessment (August 13, 2007) (46 pp., 1.76 MB)

Transmittal memo (PDF) - From Anita Pease, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (August 29, 2007) (2 pp., 38 Kb)

Effects Determination (PDF) - Effects determination for atrazine relative to three listed freshwater mussel species (August 31, 2007) (109 pp., 3.25 MB)

• Appendix A: Ecological Effects Characterization (PDF) - (131 pp., 1.1 MB)
• Appendix B: Ecological Monitoring Data (PDF) - (11 pp., 933 Kb)
• Appendix C: Incident Data Base Information (PDF) - (10 pp., 59 Kb)
• Appendix D: RQ Method and LOCs (PDF) - (2 pp., 29 Kb)
• Appendix E: ECOTOX Papers Not Used (PDF) - (237 pp., 1.75 Mb)
• Appendix F: Designated Critical Habitat Maps (PDF) - (2 pp., 299 Kb)
• Appendix G: Multi AI Product Analysis (PDF) - (6 pp., 76 Kb)
• Appendix H: Riparian Analysis (PDF) - (4 pp., 34 Kb)
• Appendix I: Baseline and Cumulative (PDF) - (20 pp., 85 Kb)

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Effects Determination for Atrazine Relative to Eight Listed Freshwater Mussel Species and Designed Critical Habitat

Transmittal letter (PDF) - From Arthur-Jean B. Williams, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (March 14, 2007) (2pp., 74 Kb)

Comments from Syngenta - From Syngenta to Arthur-Jean B. Williams, Environmental Fate and Effects Division (submitted electronically March 12, 2007) (30pp. 838 Kb)

Comments from Triazine Network - From Triazine Network Chairman Jere L. White to Arthur-Jean B. Williams, Environmental Fate and Effects Division (submitted electronically March 12, 2007) (5pp., 77 Kb)

Comments from Natural Resources Defense Council - From Natural Resources Defense Council (NRDC) to Arthur-Jean B. Williams, Environmental Fate and Effects Division (submitted electronically March 14, 2007) (10pp., 98.31 Kb)

• NRDC Attachment A - Attachment to "Comments from Natural Resources Defense Council (March 14, 2007) (16pp, 758K)
• NRDC Attachment B - Attachment to "Comments from Natural Resources Defense Council (March 14, 2007) (28pp, 1.29 Mb)
• NRDC Attachment C - Attachment to "Comments from Natural Resources Defense Council (March 14, 2007) (10pp, 486K)
• NRDC Attachment D) - Attachment to "Comments from Natural Resources Defense Council (March 14, 2007) (29pp, 362K)
• NRDC Attachment E - Attachment to "Comments from Natural Resources Defense Council (March 14, 2007) (64pp, 1.09 Mb)
• NRDC Attachment F - Attachment to "Comments from Natural Resources Defense Council (March 14, 2007) (17pp, 355K)

Comments from CropLife America - From Isi Siddiqui, Ph.D., Vice President, Science and Regualtory Affairs, CropLife America to Joy Schnackenbeck, Special Review and Reregistration Division, Office of Pesticide Programs (March 9, 2007) (2pp, 495K)

Transmittal memo - From Anita Pease, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (February 28, 2007) (2pp, 105K)

Errata Sheet for Effects Determination “Risks of Atrazine Use to Eight Federally Listed Endangered Freshwater Mussels- February 28, 2007” (1 p, 20K)

Effects Determination - Effects determination for atrazine relative to eight listed freshwater mussel species and designated critical habitat (February 28, 2007) (200 pp, 7.7 MB)

• Appendix A: Ecological Effects Data (126 pp, 1.73 MB)
  
• Appendix B: Community-level Threshold Concentrations Supporting Information (68 pp, 2.04 MB)
  
• Appendix C: Status and Life History of the Eight Assessed Mussels (41 pp, 2.18 MB)
  
• Appendix D: Table D-1 Summary of Site Nomenclature for 40 Atrazine Ecological Monitoring Sites (34 pp, 866K)
  
• Appendix E: Additional Incident Database Information (10 pp, 622K)
  
• Appendix F: The Risk Quotient Method and Levels of Concern (2 pp, 69K)
  
• Appendix G: Bibliography of ECOTOX Open Literature Not Evaluated (238 pp, 4.40 MB)
  
• Appendix H: Description of Cumulative Effects and Environmental Baseline of the Assessed Mussels (52 pp, 7.7 MB)
  

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Six Aquatic Chesapeake Bay Watershed Species and 1 Alabama River Watershed Species

Input from Syngenta (PDF) - Letter and supporting documentation from Janis McFarland, Head, Regulatory Affairs, NAFTA, Syngenta Crop Protection, Inc. to James H. Lecky, Ph.D., Director, Office of Protected Resources, National Marine Fisheries Service regarding Syngenta's Review of the National Marine Fisheries Services' Letter of May 29, 2007 (and the accompanying technical appendix) Titled "Request for Endangered Species Act Section 7 Informal Consultation on the Environmental Protection Agency's Re-registration and use of Atrazine in the Chesapeake Bay Watershed, September 1, 2006". (August 9, 2007) (56 pp, 1.74 MB)

Request for Baseline Status and Cumulative Effects Information from Arthur Jean B. Williams, Associate Director, Environmental Fate and Effects Division, Office of Pesticide Programs, US EPA to James H. Lecky, Director, Office of Protected Resources, National Marine Fisheries Service (June 7, 2007) (2 pp, 35.81K)

NMFS Response to Informal Consultation Request for atrazine from James H. Lecky, Director, Office of Protected Resources, National Marine Fisheries Service to Arthur Jean B. Williams, Associate Director, Environmental Fate and Effects Division, Office of Pesticide Programs, US EPA (May 29, 2007) (6 pp, 371K)

• Technical Appendix to NMFS Response to Informal Consultation Request for atrazine (42 pp, 1.48 MB)

Transmittal letter  for atrazine from Arthur-Jean B. Williams, Associate Director, Environemntal Fate and Effects Division to James Lecky, National Marine Fisheries Service and Bryan Arroyo, US Fish and Wildlife Service (August 31, 2006) (2 pp, 34K)

Transmittal letter for amended assessments of atrazine from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to James Lecky, National Marine Fisheries Service and Bryan Arroyo, US Fish and Wildlife Service (March 21, 2007) (2pp, 26K)

Transmittal memo  for effects determination for atrazine relative to 6 aquatic species in the Chesapeake Bay watershed from Anita Pease, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (August 31, 2006) (2 pp, 32K)

Effects Determination (AMENDED) for Atrazine relative to 6 aquatic species in the Chesapeake Bay watershed (182 pp, 7.47 MB)

• List of Sections Amended (1 p, 2283 K)
• Appendix A: (AMENDED) Ecological Effects Characterization (126 pp, 1.04 MB)
• Appendix B: (AMENDED) Supporting Information for the Aquatic Community level threshold concentrations (72 pp, 1.48 MB)
• Appendix C: Stepwise Approach to Modeling in Chesapeake Bay Endangered Species Assessment (48 pp, 643 KB)
• Appendix C-2: Description of two assumptions in Residential Exposure (3 pp, 41K)
• Appendix D: Stepwise Approach to Modeling Using the Residential Scenario as an Example (47 pp, 675K)
• Appendix E: (AMENDED) Incident Database Information (10 pp, 61K)
• Appendix F: The Risk Quotient Method Levels of Concern (3 pp, 57K)
• Appendix G: Maps of Submerged Aquatic Vegetation (5 pp, 187K)
• Appendix H: Jellyfish Monitoring Data (4 pp, 368K)
• Appendix I: Evaluation of Potential for Atrazine to Affect Dwarf Wedgemussels (18 pp, 819 K)
• Appendix J-1: (NEW) Bibliography of ECOTX Open Literature Not Used (127 pp, 1.17 MB)
• Appendix J-2: (NEW) Bibliography of ECOTOX Open Literature Rejected (111 pp, 1.01 MB)

Transmittal memo for effects determination for atrazine relative to the Alabama Sturgeon in the Alabama river watershed from Anita Pease, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (August 31, 2006) (1 page, 21 KB)

Effects (AMENDED) Determination for Atrazine relative to the Alabama Sturgeon in the Alabama River watershed (132 pp, 5.93 MB)

• Appendix A: (AMENDED) Ecological Effects Characterization (126 pp, 1.04 MB)
• Appendix B: (AMENDED) Supporting Information for the Aquatic Community level threshold concentrations (71 pp, 1.48 MB)
• Appendix C: Status of Life History of the Alabama Sturgeon (6 pp, 126K)
• Appendix D: Description of the Six Assessed Listed Species (22 pp, 60K)
• Appendix E: (AMENDED) Incident Database Information (10 pp, 61 K)
• Appendix F: The Risk Quotient Method Levels of Concern (2 pp, 39K)
• Appendix G: (NEW) Bibliography of ECOTOX Open Literature Not Evaluated (238 pp, 2.18 MB)

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Barton Springs Salamander

Transmittal memoof effects determination for atrazine relative to the Barton springs salamander from Anita Pease to Arthur-Jean Williams, Associate Director, Environmental Fate and Effects Division (August 22, 2006) (1 p, 32K)

Effects Determination for Atrazine relative to the Barton Springs Salamander (103 pp, 4.8 MB)

• Appendix A: Ecological Effects (119 pp, 2 MB)
• Appendix B: Community-Level Threshold Concentrations (69 pp, MB)
• Appendix C: Scenario Development (41 pp, 1.35 MB)
• Appendix D: Barton Springs Salamander Life History (14 pp, 151K)
• Appendix F: Incident Database Information (5 pp, 65K)
• Appendix G: Risk Quotient Method and Levels of Concern (3 pp, 73K)

Pacific Salmon and Steelhead

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Don R. Knowles, National Marine Fisheries Service (August 1, 2003) (59.3 KB, 1 page)

Memorandum from Larry Turner, Ph.D., Environmental Field Branch to Arthur-Jean B. Williams, Chief, Environmental Field Branch (August 1, 2003) (57.9 KB, 1 page)

Atrazine Analysis (217 KB, 25 pages)

Effects Determination for Acrolein

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Don R. Knowles, Director, Office of Protected Resources (11.3 KB, 2 pages)

Memorandum from Larry Turner, Ph.D., and William Erickson, Ph.D., Environmental Field Branch, to Arthur-Jean B. Williams, Chief, Environmental Field Branch (12.4 KB, 2 pages)

Acrolein Analysis (377 KB , 49 pages)

• Attachment 1: Magnacide H Herbicide Application and Safety Manual and Label (1.21 MB, 30 pages)
• Attachment 2: Final Biological Opinion (4.10 MB, 98 pages)

Effects Determination for Oryzalin

Transmittal letter from Arthur-Jean B. Williams, Chief, Environmental Field Branch, to Don R. Knowles, Director, Office of Protected Resources (75.6 KB, 2 pages)

Memorandum from Larry Turner, Ph.D., and William Erickson, Ph.D., Environmental Field Branch, to Arthur-Jean B. Williams, Chief, Environmental Field Branch (41.6 KB, 2 pages)

Oryzalin Analysis (1.57 MB, 86 pages)

• Attachment 1: Oryzalin Interim Reregistration Eligibility Decision
• Attachment 2: Oryzalin Labels
• Surflan 75WSP (734 KB, 17 pages, TIFF)
• Surflan A.S. (65,5 KB, 2 pages, TIFF)
• Snapshot (800 KB, 27 pages, TIFF)
• XL 2G (727 KB, 21 pages,