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• Effects Determinations for the California Red-legged Frog and other California Listed Species

Effects Determinations for the California Red-legged Frog and other California Listed Species

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2,4-D	Acephate	Aldicarb	Atrazine	Azinphos methyl	Bensulide
Bromacil	Carbaryl	Captan	Chloropicrin	Chlorothalonil	DCPA
Diazinon	Dimethoate	Diuron	Disulfoton	EPTC	Esfenvalerate
Fenamiphos	Glyphosate	Hexazinone	Imazapyr	Linuron	Malathion
Mancozeb and Maneb	Metam sodium	Methamidiphos	Methidathion	Metolachlor	Methomyl
Methoprene	Methyl parathion	Naled	Norflurazon	Oryzalin	Oxamyl
Oxydemeton Methyl	Oxyfluorfen	Permethrin	Phorate	Phosmet	Propargite
Propyzamide	Rotenone	Simazine	Telone	Tribufos	Ziram

Effects Determination for 2,4-D and the California Red-legged Frog and Alameda Whipsnake

Transmittal Letter (PDF) (2 pp, 125K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/09)

Effects Memorandum (PDF) (2 pp, 104.53K) from Christine Hartless, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (2/20/09)

2,4-D Analysis (PDF) (184 pp, 2.08MB) Risks of 2,4-D Use to the Federally Threatened California Red-legged Frog and the Alameda Whipsnake (2/20/09)

• Appendix A: Multi-ai Analysis (PDF) (7 pp, 83.54K)
• Appendix B: Supplemental Fate Information (PDF) (50 pp, 378K)
• Appendix C: Detailed DPR PUR Data (PDF) (5 pp, 108K)
• Appendix D: PRZM/PE5 Output Files (PDF) (15 pp, 267K)
• Appendix E: Review of Dioxin Contamination (PDF) (4 pp, 82K)
• Appendix F: Ecological Effects Data (PDF) (32 pp, 289K)
• Appendix G: ECOTOX Literature (PDF) (398 pp, 7.07MB)
• Appendix H: EIIS Incident Data (PDF) (57 pp, 817K)
• Appendix I: RQ Methods and LOC Definitions (PDF) (3 pp, 20K)
• Appendix J: T-REX Output Tables (PDF) (3 pp, 43K)
• Appendix K: T-HERPS Output Tables (PDF) (2 pp, 26.97K)
• Appendix L: TerrPlant Output Tables (PDF) (2 pp, 25.64K)
  
• Appendix M: Supplemental Aquatic RQ Tables (PDF) (24 pp, 361K)
• Appendix N: Master Label (PDF) (40 pp, 496K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4 MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)
• Attachment 3: Status and Life History of the San Francisco Bay Listed Species (PDF) (65 pp, 350K)
• Attachment 4: Baseline Status and Cumulative Effects for the San Francisco Bay Listed Species (PDF) (88 pp, 1.42MB)

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Effects Determination for Acephate and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 32.1K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (7/20/07)

Effects Memorandum (PDF) (2 pp, 102.5K) from Donna Randall, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (07/19/07)

Acephate Analysis (PDF) (122 pp, 2.01MB) Risks of Acephate Use to the Federally Threatened California Red-legged Frog of appendices) (7/19/07)

• Appendices (PDF) (161 pp, 7.49MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Aldicarb and the California Red-legged Frog

Transmittal Letter (PDF) (3 pp, 33.4K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (7/19/07)

Effects Memorandum (PDF) (2 pp, 96K) from Donna Randall, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (7/17/07)

Aldicarb Analysis (PDF) (118 pp, 1.92MB) Risks of Aldicarb Use to the Federally Threatened California Red-legged Frog (7/17/07)

• Appendix A: T-REX Output (PDF) (11 pp, 161K)
• Appendix B: TerrPlant Output (PDF) (5 pp, 61K)
• Appendix C: Earthworm Fugacity Modeling Output (PDF) (16 pp, 232K)
• Appendix D: ECOTOX Accepted Papers (PDF) (45 pp, 312K)
• Appendix E: ECOTOX Acceptable Data (PDF) (6 pp, 44.3K)
• Appendix F: ECOTOX Excluded Papers (PDF) (31 pp, 191K)
• Appendix G: ECOTOX Accepted Papers (RSLERA) (PDF) (6 pp, 36K)
• Appendix H: ECOTOX OPP Rejected Papers (PDF) (5 pp, 28.4K)
• Appendix I: ECOTOX Rejected Papers (RSLERF) (PDF) (164 pp, 840K)
• Appendix L: Environmental Fate Data Requirements (PDF) (3 pp, 50.4K)
• Appendix M: PRZM-EXAMS Model Runs (PDF) (40 pp, 126K)
• Appendix N: Aldicarb Degradation and Persistence (PDF) (4 pp, 58.7K)
• Appendix P: Summary of Available Persistence Data (PDF) (7 pp, 46.3K)
• Appendix R: Spatial Summary for Terrestrial and Aquatic Uses (PDF) (13 pp, 6.75MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

Submission from Bayer CropScience (PDF) (139 pp, 8.1MB) Report on the Effects Determination for the California Red-Legged Frog Potentially Exposed to Aldicarb (5/8/07)

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Effects Determination for Atrazine and the California Red-legged Frog and the Delta Smelt

Transmittal Letter (PDF) (2 pp, 127.84K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/09)

Effects Memorandum (PDF) (2 pp, 77.87K) from Stephanie Syslo, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (2/19/09)

Atrazine Analysis (PDF) (136 pp, 1.60MB) Risks of Atrazine Use to the Federally Threatened California Red-legged Frog and the Delta Smelt (2/19/09)

• Appendix A: Ecological Effects Data (PDF) (144 pp, 1.16MB)
• Appendix B: Terrestrial RQs for degradates (PDF) (3 pp, 43K)
• Appendix C: Multi-a.i. product analysis (PDF) (9 pp, 86K)
• Appendix D: RQ method and LOC definitions (PDF) (2 pp, 34K)
• Appendix E: Accepted ECOTOX data table (PDF) (50 pp, 2.03MB)
• Appendix F: ECOTOX bibliography of accepted and rejected papers (81 pp, 387K)
• Appendix G: Bibliography of registrant-submitted studies sorted by guideline (775 pp, 2.5MB)
• Appendix H: Discussion of atrazine incidents (9 pp, 51K)
• Appendix I: Riparian habitat discussion (4 pp, 32K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4 MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)
• Attachment 3: Status and Life History of the San Francisco Bay Listed Species (PDF) (65 pp, 350K)
• Attachment 4: Baseline Status and Cumulative Effects for the San Francisco Bay Listed Species (PDF) (88 pp, 1.42MB)

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Effects Determination for Azinphos methyl and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 33K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (7/19/07)

Effects Memorandum (PDF) (2 pp, 75K) from Stephanie Syslo, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (7/17/07)

Azinphos methyl Analysis (PDF) (116 pp, 2.40MB) Risks of Azinphos methyl Use to the Federally Threatened California Red-legged Frog (7/17/07)

• Appendix A: Action Area (PDF) (16 pp, 4.26MB)
• Appendix B: T-REX Model Description (PDF) (3 pp, 18.3K)
• Appendix C: Ecotoxicity Summaries (PDF) (70 pp, 402K)
• Appendix D: LOC Definitions (PDF) (1 p, 23K)
• Appendix E: T-REX RQs (PDF) (6 pp, 95K)
• Appendix F: T-HERPS (PDF) (14 pp, 239K)
• Appendix G: Incidents (PDF) (18 pp, 85K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Bensulide and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 31.50K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/22/07)

Effects Memorandum (PDF) (2 pp, 106K) from Donna Randall, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/18/07)

Bensulide Analysis (PDF) (98 pp, 4.67MB) Risks of Bensulide Use to the Federally Threatened California Red-legged Frog (10/18/07)

• Appendix A: Ecological Effects Data (PDF) (9 pp, 236K)
• Appendix B: PRZM/EXAMS Modeling Results (PDF) (42 pp, 558K)
• Appendix C: Estimated Exposures and Risk Quotients (PDF) (24 pp, 1.34MB)
• Appendix D: Bibliography of ECOTOX Papers (PDF) (22 pp, 432K)
• Appendix E: RQ Method and LOCs (PDF) (3 pp, 89K)
• Appendix F: Probit Analysis Input and Outputs (PDF) (4 pp, 95K)
• Appendix G: Product Formulations Containing Multiple Active Ingredients (PDF) (3 pp, 93K)
• Appendix H: Spatial Summary and Maps (PDF) (19 pp, 4.39MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Bromacil and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 31K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/22/07)

Effects Memorandum (PDF) (2 pp, 82K) from Thomas Steeger, PhD, Senior Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/19/07)

Bromacil Analysis (PDF) (118 pp, 1.70MB) Risks of Bromacil Use to the Federally Threatened California Red-legged Frog (10/19/07)

• Appendix A: Pesticide Products Formulated with Bromacil and Other Active Ingredients (PDF) (5 pp, 162K)
• Appendix B: PRZM/EXAMS Inputs and Outputs (PDF) (9 pp, 261K)
• Appendix C: Outputs from TerrPlant v1.2.2 (PDF) (3 pp, 153K)
• Appendix D: Outputs from T-REX v1.3.1 (PDF) (5 pp, 271K)
• Appendix E: Outputs from T-HERPS v1.0 (PDF) (4 pp, 217K)
• Appendix F: The Risk Quotient Method and Levels of Concern (PDF) (3 pp, 118K)
• Appendix G: List of Citations Accepted and Rejected by ECOTOX Criteria (PDF) (99 pp, 1.83MB)
• Appendix H: Detailed Analysis of Action Area and CRLF Habitat (PDF) (38 pp, 16.4MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Carbaryl and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 33K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/22/07)

Effects Memorandum (PDF) (2 pp, 59.3K) from Thomas Steeger, PhD, Senior Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/19/07)

Carbaryl Analysis (PDF) (160 pp, 1.74MB) Risks of Carbaryl Use to the Federally Threatened California Red-legged Frog (10/19/07)

• Appendix A: Use Patterns for Risk Estimation (PDF) (22 pp, 185K)
• Appendix B: Detailed Uses of Carbaryl in California, 2003-2005 (PDF) (3 pp, 54.8K)
• Appendix C: Intersection of Carbaryl Use and California Red-legged Frog Habitat (PDF) (28 pp, 7.62MB)
• Appendix D: Input for Tier 2 Aquatic Exposure Modeling (PDF) (3 pp, 51.9K)
• Appendix E: Estimation of Watershed Area (PDF) (6 pp, 57.7K)
• Appendix F: Estimation of Perimeter Gardens Treated Area (PDF) (1 p, 28.9K)
• Appendix G: PRZM/EXAMS used to develop Rights-of-Way EECs (PDF) (2 pp, 25.1K)
• Appendix H: Example Outputs from T-REX v.1.3.1 and T-HERPS v.1.0 (PDF) (3 pp, 80.7K)
• Appendix I: ECOTOX Open Literature Reviews (PDF) (28 pp, 296K)
• Appendix J: The Risk Quotient Method and Levels of Concern (PDF) (2 pp, 31.2K)
• Appendix K: Estimation of Likelihood of Individual Effects (PDF) (2 pp, 25.8K)
• Appendix L: Sensitivity Distribution Data (PDF) (8 pp, 197K)
• Appendix M: Product Formulations Containing Multiple Active Ingredients (PDF) (2 pp, 27.3K)
• Appendix N: List of Citations Accepted and Rejected by ECOTOX Criteria (PDF) (396 pp, 2.07MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Captan and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 30.99K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/22/07)

Effects Memorandum (PDF) (2 pp, 98.71K) from Christine Hartless, Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/18/07)

Captan Analysis (PDF) (127 pp, 3.11MB) Risks of Captan Use to the Federally Threatened California Red-legged Frog (10/18/07)

• Appendix A: Ecological Effects Data (PDF) (25 pp, 508K)
• Appendix B: Citations for Seedling Rates and Planting Depths (PDF) (3 pp, 122K)
• Appendix C: Multi-Active Ingredient Analysis (PDF) (4 pp, 129MB)
• Appendix D: The Risk Quotient Method and Levels of Concern (PDF) (3 pp, 168K)
• Appendix E: GIS Summary for Captan Uses (PDF) (22 pp, 4.56MB)
• Appendix F: Example T-REX Output (PDF) (4 pp, 193K)
• Appendix G: Bibliography of ECOTOX Open Literature (PDF) (235 pp, 3.82MB)
• Appendix H: THPI Estimated Environmental Concentrations (PDF) (5 pp, 280K)
• Appendix I: PRZM EXAM Example Run (PDF) (5 pp, 114K)
• Appendix J: Environmental Fate and Transport Summary (PDF) (5 pp, 115K)
• Appendix K: Fate and Ecological Transport Summary (PDF) (8 pp, 105K)
• Appendix L: TerrPlant EEC Output for Terrestrial Plants (PDF) (2 pp, 103K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Chloropicrin and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 32.1K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (7/19/07)

Effects Memorandum (PDF) (2 pp, 57.6K) from Mah Shamim, Ph.D., Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (07/18/07)

Chloropicrin Analysis (PDF) (190 pp, 7.18MB): Risks of Chloropicrin Use to the Federally Threatened California Red-legged Frog (inclusive of appendices) (7/19/07)

• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 21K)

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Effects Determination for Chlorothalonil and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 33K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/22/07)

Effects Memorandum (PDF) (2 pp, 62.2K) from Stephanie Syslo, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/19/07)

Chlorothalonil Analysis (PDF) (140 pp, 2.43MB) Risks of Chlorothalonil Use to the Federally Threatened California Red-legged Frog (10/19/07)

• Appendix A: Environmental Fate Data (PDF) (3 pp, 33K)
• Appendix B: Ecological Effects Data (PDF) (26 pp, 276K)
• Appendix C: Chlorothalonil Spatial Summary Maps (PDF) (33 pp, 17.4MB)
• Appendix D: Aquatic EECs and Aquatic and Atmospheric Monitoring (PDF) (124 pp, 168MB)
• Appendix E: Incident Database Information (PDF) (6 pp, 57.7K)
• Appendix F: Example T-REX Output (PDF) (1 p, 20.3K)
• Appendix G: Example T-HERPS Output and Model Uncertainties (PDF) (10 pp, 135K)
• Appendix H: List of Accepted and Rejected ECOTOX Papers (PDF) (218 pp, 1.39MB)
• Appendix I: Multiple Active Ingredients Data and Analysis (PDF) (5 pp, 49.5K)
• Appendix J: Detailed RQs by Use (PDF) (10 pp, 136 K)
• Appendix K: Use Report (PDF) (25 pp, 186K)
• Appendix L: Summary of Use Data from CA DPR PUR Database (PDF) (2 pp, 40.4K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for DCPA and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 121K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/09)

Effects Memorandum (PDF) (2 pp, 80K) from Jean Holmes, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (2/19/09)

DCPA Analysis (PDF) (176 pp, 1.59MB) Risks of DCPA Use to the Federally Threatened California Red-legged Frog (2/19/09)

• Appendix A: Summarized Data from the California PUR Database (PDF) (3 pp, 79.83K)
• Appendix B: Spatial Summary for DCPA Uses (PDF) (9 pp, 678K)
• Appendix C: Risk Quotient (RQ) Method and Levels of Concern (LOCs) (PDF) (1 pp, 17.18K)
• Appendix D: CA PUR Data Graphs Presented as Pounds DCPA Applied per Application Over One Year and Application Rate (lbs a.i./A) per Application over one year (PDF) (35 pp, 232K)
• Appendix E: Calculation of Input Parameters for PRZM/EXAMS and Example GENEEC and PRZM/EXAMS Output Files (PDF) (57 pp, 99.51K)
• Appendix F: Ecological Effects Data (56 pp, 474K)
• Appendix G: ECOTOX Chlorthal-Dimethyl Effects Endpoints (3 pp, 100.13K)
• Appendix H: Bibliography of ECOTOX Open Literature Not Evaluated (49 pp, 347K)
• Appendix I: T-REX and T-HERPS Output (41 pp, 790K)
• Appendix J: Back calculating LD50s (6 pp, 67.86K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4 MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Diazinon and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 32.1K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (7/18/07)

Effects Memorandum (PDF) (2 pp, 80.1K) from Thomas Steeger, Ph.D., Senior Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (07/17/07)

Diazinon Analysis (PDF) (162 pp, 1.77MB) Risks of Diazinon Use to the Federally Threatened California Red-legged Frog (7/17/07)

• Appendices (PDF) (250 pp, 7.84MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Dimethoate and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 33.3K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/15/08)

Effects Memorandum (PDF) (1 p, 194K) from Thomas Steeger, Ph.D., Senior Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (1/31/08)

Dimethoate Analysis (PDF) (137 pp, 1.27MB) Risks of Dimethoate Use to the Federally Threatened California Red-legged Frog (1/31/08)

• Appendix A: Use Closure Memo for dimethoate (PDF) (4 pp, 56.7K)
• Appendix B: Analysis of dimethoate use in CA, 2001-2005 (PDF) (9 pp, 162K)
• Appendix C: Detailed analysis of final dimethoate action area (PDF) (28 pp, 1.39MB)
• Appendix D: Output from PRZM/EXAMS modeling (PDF) (64 pp, 335K)
• Appendix E: Example output from T-REX v.1.3.1 model (PDF) (2 pp, 62.6K)
• Appendix F: List of citations accepted and rejected by ECOTOX (PDF) (153 pp, 968K)
• Appendix G: The Risk Quotient Method and Levels of Concern (PDF) (2 pp, 31.3K)
• Appendix H: Ecological incidents associated with dimethoate (PDF) (3 pp, 59.6K)
• Appendix I: Output from T-HERPS v.1.0 model (PDF) (1 p, 32.1K)
• Appendix J: Individual Effect Analysis (3 pp, 32.8K)
• Appendix K: Review of ECOTOX for dimethoate and omethoate (7 pp, 56.7K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Disulfoton and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 132K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (6/20/08)

Effects Memorandum (PDF) (2 pp, 70.69K) from Tom Bailey, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (6/20/08)

Disulfoton Analysis (PDF) (121 pp, 1.90MB) Potential Risks of Disulfoton Use to the Federally Threatened California Red-legged Frog (6/20/08)

• Appendix A: Analysis of Products with 2 or More Active Ingredients (PDF) (2 pp, 24.88K)
• Appendix B: California PUR Summary Data (PDF) (8 pp, 875K)
• Appendix C: GIS Analysis (PDF) (15 pp, 2.02MB)
• Appendix D: Summary of Accepted ECOTOX papers (PDF) (22 pp, 7.31MB)
• Appendix E: PRZM/EXAMS Model Output (PDF) (45 pp, 1.36MB)
• Appendix F: T-REX Example Output (PDF) (45 pp, 41.89K)
• Appendix G: HED RED Assessment (PDF) (31 pp, 498K)
• Appendix H: Bibliography of Accepted and Rejected ECOTOX papers (PDF) (204 pp, 3.64MB)
• Appendix I: Bibliography of Registrant-Submitted Studies (PDF) (209 pp, 748K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Diuron and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 121K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/09)

Effects Memorandum (PDF) (2 pp, 69K) from Jean Holmes, DVM, MPH, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (2/18/09)

CRLF ESA Diuron (PDF) (135 pp, 1,609K) Risks of Diuron Use to the Federally Threatened California Red-legged Frog (2/18/09)

• Appendix A: Multi-ai Product Analysis (PDF) (5 pp, 59.82K)
• Appendix B: Chemical Structures (PDF) (2 pp, 26K)
• Appendix C: Use Rates and Methods (PDF) (7 pp, 129K)
• Appendix D: CDPR PUR Usage Data (PDF) (18 pp, 609K)
• Appendix E: RQ method and LOC (PDF) (2 pp, 25.24K)
• Appendix F: CRLF_Spatial Summary(PDF) (9 pp, 771.33K)
• Appendix G: PRZMEXAMS Outputs (PDF) (101 pp, 382K)
• Appendix H: T-REX Example Output (PDF) (2 pp, 23.22K)
• Appendix I: TerrPlant Example Output (PDF) (1 p, 18.37K)
• Appendix J: Bibliography of ECOTOX Open Literature Not Evaluated (PDF) (246 pp, 1.18MB)
• Appendix K: Acceptable Ecotox Spreadsheet (PDF) (14 pp, 793K)
• Appendix L: Ecological Effects Data (PDF) (10 pp, 38.42K)
• Appendix M: Diuron Incidents (PDF) (7 pp, 29.16K)
• Appendix N: T-HERPS Example Output (PDF) (2 pp, 26K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for EPTC and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 131K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (6/20/08)

Effects Memorandum (PDF) (2 pp, 80.45K) from Tom Bailey, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (6/20/08)

EPTC (S-Ethyl dipropylthiocarbamate) Analysis (PDF) (127 pp, 184MB) Risks of EPTC Use to the Federally Threatened California Red-legged Frog (6/20/08)

• Appendix A: Environmental Fate Summaries (PDF) (19 pp, 121K)
• Appendix B: Ecotoxicity Study Summaries (PDF) (25 pp, 223K)
• Appendix C: Risk Quotient Method and Levels of Concern (PDF) (2 pp, 43K)
• Appendix D: Aquatic Model PRZM/EXAMS Output (PDF) (181 pp, 80.10K)
• Appendix E: Example of T-REX Model Output (PDF) (3 pp, 71.97K)
• Appendix F: Example of TerrPlant Model Output (PDF) (1 p, 43K)
• Appendix G: Multiple Active Ingredients (PDF) (3 pp, 28K)
• Appendix H: Adverse Ecological Incidents (PDF) (3 pp, 22K)
• Appendix I: Summary of EPTC Usage in California (PDF) (4 pp, 80K)
• Appendix J: Surface Water Monitoring Data (PDF) (10 pp, 194K)
• Appendix K: Spatial Summary for EPTC Uses (PDF) (14 pp, 2.09MB)
• Appendix L: Open Literature Ecotoxicity (ECOTOX) Information (PDF) (84 pp, 741K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Esfenvalerate and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 33.2K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/08)

Effects Memorandum (PDF) (2 pp, 89K) from Shannon Borges, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (2/19/08)

Esfenvalerate Analysis (PDF) (139 pp,  2.67MB) Risks of Esfenvalerate Use to the Federally Threatened California Red-legged Frog (2/19/08)

• Appendix A: Product Formulations Containing Multiple Active Ingredients (PDF) (7 pp, 32.9K)
• Appendix B: PRZM-EXAMS Water Modeling Results (PDF) (393 pp, 567K)
• Appendix C: Estimated Exposures and RQs for Terrestrial Assessment (PDF) (25 pp, 185K)
• Appendix D: Papers Accepted for ECOTOX and OPP, included (PDF) (2 pp, 21.0K)
• Appendix E: Papers Accepted for ECOTOX and OPP, not included (PDF) (57 pp, 379K)
• Appendix F: Papers Excluded Without Abstract (PDF) (55 pp, 343K)
• Appendix G: Selected Usage Data for Esfenvalerate for 2005, by month (PDF) (6 pp, 29.6K)
• Appendix H: Applicable Labels for each Crop-Use Grouping (PDF) (3 pp, 21.1K)
• Appendix I: Usage Data for Esfenvalerate, 2002-2005 (PDF) (2 pp, 28.0K)
• Appendix J: Summary of Esfenvalerate Half Lives in Soil (2 pp, 13.9K)
• Appendix K: Post-processing of Selected Scenarios to Estimate Aquatic EECs (1 pp, 7.89K)
• Appendix L: Toxicity Categories and Levels of Concern (PDF) (1 pp, 12.9B)
• Appendix M: Open Literature Review Summaries for Included ECOTOX Papers (PDF) (11 pp, 107K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Fenamiphos and the California red-legged frog and other listed species

Effects Memorandum (PDF) (3 pp, 128K) from Thomas Steeger, Ph.D, Senior Scientist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (2/9/09)

Effects Determination for Glyphosate and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 129K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10-17-08)

Effects Memorandum (PDF) (2 pp, 87.01K) from Donna Randall, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/17/08)

Glyphosate Analysis (PDF) (180 pp, 276MB) Risks of Glyphosate Use to the Federally Threatened California Red-legged Frog (10/17/08)

• Appendix A: Analysis of Products with Two or More Active Ingredients (PDF) (15 pp, 59K)
• Appendix B: Physical and Chemical Properties (PDF) (3 pp, 35K)
• Appendix C: Risk Quotient Method and Levels of Concern (PDF) (2 pp, 25.26K)
• Appendix D: Aquatic Modeling and Calculations (PDF) (1 p, 21.83K)
• Appendix E: T-REX Example Output (PDF) (2 pp, 22.51 KB)
• Appendix F: Terrplant Example Output (PDF) (1 p, 19.14K)
• Appendix G: Bibliography of ECOTOX Papers (PDF) (226 pp, 3.99 MB)
• Appendix H: Data Table for Accepted ECOTOX Papers (PDF) (19 pp, 6.49 MB)
• Appendix I: Data Table for Mammalian Studies (PDF) (3 pp, 44K)
• Appendix J: Ecological Effects Data (PDF) (39 pp, 469K)
• Appendix K: Incident Data (PDF) (85 pp, 294 KB)
• Appendix L: Bibliography of Submitted Fate and Ecotoxicity Studies (PDF) (23 pp, 112K)
• Appendix M: Bibliography of Submitted Studies on AMPA Degradate (PDF) (2 pp, 19K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4 MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Hexazinone and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 32.9K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/08)

Effects Memorandum (PDF) (2 pp, 74.8K) from Mah Shamim Ph.D., Chief, Environmental Risk Branch 5, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (2/20/08)

Hexazinone Analysis (PDF) (146 pp, 3.47MB) Risks of Hexazinone Use to the Federally Threatened California Red-legged Frog (2/20/08)

• Appendix A: Product Formulations containing Multiple Active Ingredients (PDF) (4 pp, 29.8K)
• Appendix B: The Risk Quotient Method and Levels of Concern (PDF) (2 pp, 35.3K)
• Appendix C: Hexazinone T-REX Results (PDF) (15 pp, 64.5K)
• Appendix D: Hexazinone T-HERPS Results (PDF) (6 pp, 133K)
• Appendix E: Hexazinone TerrPlant Results (PDF) (10 pp, 64.7K)
• Appendix F: Spatial Summary for Hexazinone Uses (PDF) (25 pp, 6.78MB)
• Appendix G: ECOTOX Open Literature Search Results (PDF) (35 pp, 182K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Imazapyr and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 32.2K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (7/19/07)

Effects Memorandum (PDF) (2 pp, 65.3K) from Anita Pease, Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Ffate and Effects Division (7/17/07)

Imazapyr Analysis (PDF) (164 pp, 3.13MB) Risks of Imazapyr Use to the Federally Threatened California Red-legged Frog (7/17/07)

• Appendix A: Environmental Fate (PDF) (10 pp, 143K)
• Appendix B: Ecological Effects (PDF) (22 pp, 255K)
• Appendix C: Spatial Summary Maps (PDF) (26 pp, 18.4MB)
• Appendix D: Aquatic Environmental Concentrations (PDF) (63 pp, 400K)
  
• Appendix E: Incidence Data (PDF) (5 pp, 33K)
• Appendix F: RQ Method and LOCs (PDF) (2 pp, 39K)
• Appendix G: ECOTOX Papers Included in Assessment (PDF) (1pp, 15K)
• Appendix H: Accepted ECOTOX Papers Not Used (PDF) (6 pp, 52.4K)
• Appendix I: Bibliography of papers excluded from ECOTOX (PDF) (16 pp, 110K)
• Appendix J: Submitted MRID Ecotoxicity Bibliograpahy (PDF) (10 pp, 37.7K)
• Appendix K: Mulit-AI Products (PDF) (4 pp, 36.3K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Linuron and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 126K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (6/20/08)

Effects Memorandum (PDF) (2 pp, 78K) from Donna Randall, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (6/19/08)

Linuron Analysis (PDF) (113 pp, 1.24MB) Risks of Linuron Use to the Federally Threatened California Red-legged Frog (6/19/08)

• Appendix A: Ecotoxicity Data Tables (PDF) (7 pp, 309K)
• Appendix B: Multi-AI Linuron (PDF) (2 pp, 24K)
• Appendix C: RQ Method and LOC (PDF) (2 pp, 27K)
• Appendix D: GIS Maps (PDF) (15 pp, 2.18MB)
• Appendix E: T-REX Output (PDF) (12 pp, 245K)
• Appendix F: Terrplant Output (PDF) (4 pp, 113.90K)
• Appendix G: Bibliography of Ecotox Open Literature Not Evaluated (PDF) (108 pp, 801.09K)
• Appendix H: Incident EIIS Linuron (PDF) (1 p, 16.27K)
• Appendix I: AgDisp Model (PDF) (8 pp, 107K)
• Appendix J: Toxicity Profile Mammals (PDF) (7 pp, 47.80K)
• Appendix K: Current Method and Rates of Application (PDF) (3 pp, 21.24K)
• Appendix L: Phytotox table (PDF) (7 pp, 138.94K)
• Appendix M: Linuron RLF Use Closure Memo (PDF) (2 pp, 24.31K)
• Appendix N: T Herps Results (PDF) (4 pp, 97.15K)
• Appendix O: Phenylurea and Urea Structures (PDF) (6 pp, 48.38K)
• Appendix P: ECOTOX Linuron Endpoints (PDF) (22 pp, 4.80MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Malathion and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 33K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/22/07)

Effects Memorandum (PDF) (2pp, 50K) from Edward Odenkirchen, Senior Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/19/07)

Malathion Analysis (PDF) (272 pp, 6.80MB) Risks of Malathion Use to the Federally Threatened California Red-legged Frog (10/19/07)

• Appendix A: Product Formulations Containing Multiple Active Ingredients (PDF) (4 pp, 136K)
• Appendix B: ECOTOX Studies (PDF) (218 pp, 4.12MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4 MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Mancozeb and Maneb and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 39K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/22/07)

Effects Memorandum (PDF) (2 pp, 62.2K) from Jean Holmes, DVM, MPH, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/18/07)

Mancozeb and Maneb Analysis (PDF) (143 pp, 3.95MB) Risks of Mancozeb and Maneb Use to the Federally Threatened California Red-legged Frog (10/17/07)

• Appendix A: Multi-ai Product Analysis (PDF) (6 pp, 176K)
• Appendix B: County-level Usage Data (PDF) (16 pp, 372K)
• Appendix C: GIS Maps for Mancozeb (PDF) (22 pp, 5.53MB)
• Appendix D: Toxicity Data (PDF) (15 pp, 261K)
• Appendix E: T-HERPs Output (PDF) (20 pp, 352K)
• Appendix F: T-REX Output (PDF) (12 pp, 171K)
• Appendix G: AgDISP Buffers (PDF) (2 pp, 90K)
• Appendix H: Accepted and Rejected ECOTOX Data (PDF) (199 pp, 3.50MB)
• Appendix I: GIS Maps for Maneb (PDF) (19 pp, 5.6MB)
• Appendix J: Ecological Incident Data (PDF) (5 pp, 116K)
• Appendix K: TerrPlant Modeling (PDF) (9 pp, 138K)
• Appendix L: GIS Maps for Maneb and Mancozeb (PDF) (19 pp, 5.79MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Metam sodium and the California Red-legged Frog

Transmittal Letter (PDF) (3 pp, 32.6K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (7/20/07)

Effects Memorandum (PDF) (2 pp, 76.3K) from Mah Shamim, Ph.D., Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (07/19/07)

Metam sodium Analysis (PDF) (237 pp, 7.74MB) Risks of Metam sodium Use to the Federally Threatened California Red-legged Frog (inclusive of appendices) (7/19/07)

• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Methamidiphos and the California Red-legged Frog

Transmittal Letter (PDF) (3 pp, 33.2K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (7/19/07)

Effects Memorandum (PDF) (2 pp, 83.8K) from Donna Randall, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (07/19/07)

Methamidophos Analysis (PDF) (101 pp, 1.78MB) Risks of Methamidophos Use to the Federally Threatened California Red-legged Frog (7/18/07)

• Appendices (PDF) (169 pp, 5.45MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

Submission from Bayer CropScience (PDF) (98 pp, 3.97MB) Report on the Effects Determination for the California Red-Legged Frog Potentially Exposed to Methamidophos (5/14/07)

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Effects Determination for Methidathion and the California Red-legged Frog

Transmittal Letter (PDF) (2pp, 121K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/09)

Effects Memorandum (PDF) (2 pp, 72.50K) from Stephanie Syslo, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (2/18/09)

Methidathion Analysis (PDF) (127 pp, 1.66MB) Risks of Methidathion Use to the Federally Threatened California Red-legged Frog (2/18/09)

• Appendix A: Bibliography of Submitted Fate Studies (PDF) (5 pp, 32K)
• Appendix B: Chemical Names and Structures (PDF) (2 pp, 31K)
• Appendix C: California PUR Data (PDF) (9 pp, 234K)
• Appendix D: CRLF Spatial Summary (PDF) (8 pp, 680K)
• Appendix E: Risk Quotient Method and Levels of Concern (PDF) (2 pp, 26K)
• Appendix F: PRZM/EXAMS Model Outputs (PDF) (36 pp, 687K)
• Appendix G: T-REX Example Output (PDF) (27 pp, 479K)
• Appendix H: Bibliography of ECOTOX Papers (PDF) (58 pp, 385K)
• Appendix I: Accepted ECOTOX Data Table (sorted by effect) (PDF) (6 pp, 19K)
• Appendix J: Ecological Effects (PDF) (7 pp, 89.17K)
• Appendix K: Data Table for Mammalian Studies from Health Effects Division (PDF) (2 pp, 55K)
• Appendix L: Incident Data (PDF) (3 pp, 20K)
• Appendix M: T-HERPS Example Output (PDF) (3 pp, 49K)
• Appendix N: Bibliography of Submitted Exotoxicity Studies (PDF) (16 pp, 78K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Final CRLF Baseline Status and Cumulative Effects (PDF) (51 pp, 214K)

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Effects Determination for Methomyl and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 33.1K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (7/19/07)

Effects Memorandum (PDF) (2 pp, 66.8K) from Melissa Panger, Ph.D., Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (07/18/07)

Methomyl Analysis (PDF) (264 pp, 8.84MB) Risks of Methomyl Use to the Federally Threatened California Red-legged Frog (inclusive of appendices) (7/18/07)

• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Methoprene and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 30.6K) from Janet Anderson, Ph.D., Director, Biopesticides and Pollution Prevention Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/08)

Methoprene Analysis (PDF) (80 pp, 924K) Risks of Methoprene Use to the Federally Threatened California Red-legged Frog (2/20/08)

• Appendix A: Product Formulations Containing Multiple Active Ingredients (PDF) (2 pp, 18.4K)
• Appendix B: Summary of S-methoprene use in CA (PDF) (44 pp, 735K)
• Appendix C: The RQ Method and LOCs (PDF) (2 pp, 25.5K)
• Appendix D: Tier 1 Estimation for Rice and Caneberries (PDF) (2 pp, 80.7K)
• Appendix E: Extrapolations for Sustainable Release Rate Formulations (PDF) (6 pp, 57.3K)
• Appendix F: T-REX Calculations (PDF) (5 pp, 85.9K)
• Appendix G: ECOTOX Studies (PDF) (25pp, 85.3K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30pp, 1.4MB)

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Effects Determination for Methyl parathion and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 33.5K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/08)

Effects Memorandum (PDF) (2 pp, 60.2K) from Thomas Steeger, Ph.D., Senior Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (2/20/08)

Methyl parathion Analysis (PDF) (96 pp, 2.94MB) Risks of Methyl parathion Use to the Federally Threatened California Red-legged Frog (2/20/08)

• Appendix A: Fate, Exposure, and Monitoring (PDF) (21 pp, 1.39MB)
• Appendix B: Ecological Effects Data (PDF) (57 pp, 435K)
• Appendix C: List of Accepted and Rejected ECOTOX Papers (PDF) (210 pp, 1.29MB)
• Appendix D: RQ Method and LOCs (PDF) (2 pp, 37.5K)
• Appendix E: Analysis Summary (PDF) (10 pp, 326K)
• Appendix F: Spatial Summary (PDF) (23 pp, 5.5MB)
• Appendix G: Multiple Active Ingredients (PDF) (2 pp, 19.6K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Metolachlor and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 77.2K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (7/17/07) 
 
Effects Memorandum (PDF) (1 p, 56.6K) from Paige Doelling-Brown, Ph.D., Senior Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental fate and Effects Division (7/16/07)

Metolachlor Analysis (PDF) (97 pp, 2.81MB) Risks of Metolachlor Use to the Federally Threatened California Red-legged Frog (7/16/07)

• Appendix A: Exposure and Monitoring (PDF) (16 pp, 256K )
• Appendix B: Ecological Effects (PDF) (25 pp, 276K)
• Appendix C: ECOTOX Papers (PDF) (127 pp, 756K)
• Appendix D: Risk Quotient Method and LOCs (PDF) (2 pp, 28K)
• Appendix E: Analysis Summary (PDF) (45 pp, 926K)
• Appendix F: GIS Summary and Maps (PDF) (19 pp, 8.30MB)
• Appendix G: Multi-AI Products (PDF) (9 pp, 54K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Naled and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 33.3K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/08)

Effects Memorandum (PDF) (2 pp, 84K) from Donna Randall, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (2/19/08)

Naled Analysis (PDF) (117 pp, 1.10MB) Risks of Naled Use to the Federally Threatened California Red-legged Frog (2/19/08)

• Appendix A: Ecological Effects Data (PDF) (9 pp, 154K)
• Appendix B: PRZM/EXAMS Inputs and Outputs (PDF) (81 pp, 261K)
• Appendix C: Outputs from T-REX and T-HERPS (PDF) (52 pp, 1.17MB)
• Appendix D: Aquatic RQs – Naled and DDVP (PDF) (1 pp, 64K)
• Appendix E: Naled Fate Properties (PDF) (6 pp, 88.4K)
• Appendix F: DDVP Fate Properties (PDF) (1 p, 64K)
• Appendix G: Assessing Terrestrial Invertebrate Exposure (PDF) (2 pp, 16K)
• Appendix H: ECOTOX Bibliography (PDF) (63 pp, 406K)
• Appendix I: LOC Tables (PDF) (1 p, 22.4K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Norflurazon and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 121K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/2009)

Effects Memorandum (PDF) (1 pp, 63.31K) from Thomas Steeger, Ph.D, Senior Scientist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (02/18/2009)

Norflurazon Analysis (PDF) (97 pp, 1.12MB) Risks of Norflurazon Use to the Federally Threatened California Red-legged Frog (02/18/2009)

• Appendix A: Norflurazon CDPR Data (16 pp, 23.02K)
• Appendix B: CRLF Spatial Summary (8 pp, 712K)
• Appendix C: Sample TREX (1 pp, 22K)
• Appendix D: Sample TerrPlant (1 pp, 23K)
• Appendix E: Papers Excluded from ECOTOX (28 pp, 178K)
• Appendix F: ECOTOX Data (2 pp, 112.56K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Oryzalin and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 131.58K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (6/20/08)

Effects Memorandum (PDF) (2 pp, 73K) from Ed Odenkirchen, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (6/19/08)

Oryzalin Analysis (PDF) (133 pp, 1.46MB) Risks of Oryzalin Use to the Federally Threatened California Red-legged Frog (6/19/08)

• Appendix A: Oryzalin Ecological Effects Data (PDF) (9 pp, 98.42K)
• Appendix B: Oryzalin Multi-ai Product Formulations (PDF) (2 pp, 28.84K)
• Appendix C: RQ Method and LOCs (PDF) (2 pp, 34K)
• Appendix D: Oryzalin GIS Maps (PDF) (14 pp, 2.29MB)
• Appendix E: T-REX Example Output (PDF) (3 pp, 67K)
• Appendix F: T-HERPS Example Output (PDF) (1 p, 36.16K)
• Appendix G: TERRPLANT Example Output (PDF) (1 p, 41.98K)
• Appendix H: ECOTOX Bibliography Not Considered for Oryzalin (PDF) (34 pp, 267K)
• Appendix I: Oryzalin Incidents (PDF) (3 pp, 18.92K)
• Appendix J: HED Data to Define Oryzalin Action Area (PDF) (1 p, 138.68K)
• Appendix K: ECOTOX Bibliography Considered for Oryzalin (PDF) (32 pp, 884K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.39MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 224K)

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Effects Determination for Oxamyl and the California red-legged frog

Transmittal Letter (PDF) (2 pp, 121K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/09)

Effects Memorandum (PDF) (1 p, 60.72K) from Anita Pease, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (2/12/09)

Oxamyl Analysis (PDF) (117 pp, 930K) Risks of Oxamyl Use to the Federally Threatened California Red-legged Frog (2/12/09)

• Appendix A: Intersection of Oxamyl Use Area and California Red-legged frog Habitat (PDF) (8 pp, 658K)
• Appendix B: The Risk Quotient Method and Levels of Concern (PDF) (2 pp, 30K)
• Appendix C: PRZM/EXAMS Input Files and Output File Data (PDF) (33 pp, 203.82K)
• Appendix D: Example output from T-REX v.1.3.1 (PDF) (3 pp, 57.86K)
• Appendix E: Example output from Terrplant v.1.2.2 (PDF) (1 pp, 42K)
• Appendix F: List of citations accepted and rejected by ECOTOX criteria (PDF) (55 pp, 346K)
• Appendix G: Detailed spreadsheet of available ECOTOX open literature for oxamyl (PDF) (8 pp, 19.83K)
• Appendix H: Summary of human health effects data for oxamyl (PDF) (4 pp, 98K)
• Appendix I: Example output from analysis of likelihood of individual mortality (PDF) (1 pp, 25K)
• Appendix J: Example output from T-HERPS v.1.0 (PDF) (1 pp, 31K)
• Appendix K: Use of fugacity approach to estimate exposures to small mammals consuming earthworms contaminated with oxamyl from treatment sites (PDF) (4 pp, 63.78K)
• Appendix L: Degradate summary (PDF) (3 pp, 55.17K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Oxydemeton Methyl and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 33K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/22/07)

Effects Memorandum (PDF) (2 pp, 116K) from Donna Randall, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/18/07)

Oxydemeton Methyl Analysis (PDF) (113 pp, 2.12MB) Risks of Oxydemeton Methyl Use to the Federally Threatened California Red-legged Frog (10/18/07)

• Appendix A: PRZM-EXAMS Water Modeling Results (PDF) (63 pp, 732K)
• Appendix B: T-REX and T-HERPS Model Output (PDF) (13 pp, 374K)
• Appendix C: Papers Accepted for ECOTOX-OPP and Included (PDF) (3 pp, 839K)
• Appendix D: Papers Accepted for ECOTOX-OPP but not Included (PDF) (5 pp, 153K)
• Appendix E: Papers Excluded from ECOTOX (PDF) (19 pp, 402K)
• Appendix F: Reviews of ECOTOX Papers Included (PDF) (7 pp, 141K)
• Appendix G: Toxicity Categories and Levels of Concern (PDF) (2 pp, 77.40K)
• Appendix H: Spatial Summary and Maps (PDF) (33 pp, 13.1MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)
  

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Effects Determination for Oxyfluorfen and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 129K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/17/08)

Effects Memorandum (PDF) (2 pp, 89K) from Christine Hartless, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/16/08)

Oxyfluorfen Analysis (PDF) (165 pp, 3.85MB) Risks of Oxyfluorfen Use to the Federally Threatened California Red-legged Frog (10/16/08)

• Appendix A: Multi-ai analysis (3 pp, 58K)
• Appendix B: Supplemental Fate Information (6 pp, 59K)
• Appendix C: DPR PUR Data (7 pp, 415K)
• Appendix D: Spatial Summary for Oxyfluorfen Uses (10 pp, 873K)
• Appendix E: HED Genetic Toxicity Profile (3 pp, 73K)
• Appendix F: Ecological Effects Data (11 pp, 276K)
• Appendix G: ECOTOX Literature (71 pp, 2.02MB)
• Appendix H: EIIS Incident Data (4 pp, 113K)
• Appendix I: RQ Methods and LOC Definitions (3 pp, 25K)
• Appendix J: Example Output from PRZM, T-REX, TerrPlant, T-HERPS & Expanded THERPS Tables (16 pp, 445K)
• Appendix K: Earthworm Fugacity Model (6 pp, 84K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Permethrin and the California Red-legged Frog, Bay Checkerspot Butterfly, California Clapper Rail, Salt Marsh Harvest Mouse, and San Francisco Garter Snake

Permethrin Transmittal Letter (PDF) (2 pp, 134K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/20/08)

Permethrin Effects Memorandum (PDF) (2 pp, 122K) from Mah Shamim, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/20/08)

Permethrin Analysis (PDF) (293 pp, 2.46MB) Risks of Permethrin Use to the Federally Threatened California Red-legged Frog, and Bay Checkerspot Butterfly, and the Federally Endangered California Clapper Rail, Salt Marsh Harvest Mouse, and San Francisco Garter Snake (10/20/08)

• Appendix A: Permethrin Multi-a.i. Product Analysis (PDF) (28 pp, 494K)
• Appendix B: Bibliography of ECOTOX Open Literature (PDF) (307 pp, 5.28MB)
• Appendix C: Permethrin Post RED Mitigation Measures and Non-Agricultural Labeled Uses (PDF) ( 17 pp, 157K)
• Appendix D: Risk Quotient (RQ) Methods and Levels of Concern (LOC) (PDF) (2 pp, 35K)
• Appendix E: Permethrin Sample PRZM-EXAMS Runs (PDF) (6 pp, 52K)
• Appendix F: T-REX Example Output (PDF) (3 pp, 62K)
• Appendix G: Fugacity Model- Terrestrial Chronic Exposure Estimates for Granular Applications of Permethrin (PDF) (8 pp, 110K)
• Appendix H: Accepted ECOTOX Data Table (sorted by effect) (PDF) (68 pp, 9.51MB)
• Appendix I: Health Effects Division (HED) Data Tables for Permethrin (PDF) (3 pp, 89K)
• Appendix J: Ecological Effects Data (PDF) (42 pp, 351K)
• Appendix K: Permethrin Ecological Incidents (PDF) (9 pp, 67K)
• Appendix L: T-HERPS Example Output (PDF) (1 pp, 34K)
• Attachment 1: Status and Life History of the California Red-legged Frog (PDF) (30 pp, 1.4 MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)
• Attachment 3: Status and Life History of the San Francisco Bay Listed Species (PDF) (65 pp, 350K)
• Attachment 4: Baseline Status and Cumulative Effects for the San Francisco Bay Listed Species (PDF) (88 pp, 1.42MB)

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Effects Determination for Phorate and the California Red-legged Frog, Valley Elderberry Longhorn Beetle, Bay Checkerspot Butterfly, and San Joaquin Kit Fox

Transmittal Letter (PDF) (2 pp, 134K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/20/08)

Effects Memorandum (PDF) (2 pp, 95K) from Tom Bailey, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/10/08)

Phorate Analysis (PDF) (127 pp, 2.42MB) Risks of Phorate Use to the Federally Threatened California Red-legged Frog, Valley Elderberry Longhorn Beetle, Bay Checkerspot Butterfly, and Endangered San Joaquin Kit Fox (10/10/08)

• Appendix A: Ecological Effects Data Summary (PDF) (12 pp, 225K)
• Appendix B: Product Formulations Containing Multiple Active Ingredients (PDF) (2 pp, 24K)
• Appendix C: Risk Quotient (RQ) Method and Levels of Concern(LOC) (PDF) (2 pp, 40K)
• Appendix D: GIS Maps (PDF) (1 p, 11K)
• Appendix E: T-REX Example Output (PDF) (1 p, 11K)
• Appendix F: TerrPlant Example Output (PDF) (1 p, 11K)
• Appendix G: Accepted ECOTOX Data Table (PDF) (6 pp, 1.40MB)
• Appendix H: Bibliography of ECOTOX Open Literature Not Evaluated (PDF) (49 pp, 353K)
• Appendix I: HED Effects (PDF) (8 pp, 45K)
• Appendix J: EIIS Pesticide Summary Report (PDF) (11 pp, 220K)
• Appendix K: PRZM/EXAMS Output Files (PDF) (30 pp, 447K)
• Appendix L: T-REX Output Files(PDF) (21 pp, 452K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)
• Attachment 3: Status and Life History of the San Francisco Bay Listed Species (PDF) (65 pp, 350K)
• Attachment 4: Baseline Status and Cumulative Effects for the San Francisco Bay Listed Species (PDF) (88 pp, 1.42MB)

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Effects Determination for Phosmet and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 130.16K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (6/20/08)

Effects Memorandum (PDF) (1 p, 67.70K) from Thomas Steeger, Ph.D., Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (6/18/08)

Phosmet Analysis (PDF) (106 pp, 1.21MB) Risks of Phosmet Use to the Federally Threatened California Red-legged Frog (6/18/08)

• Appendix A: Phosmet RLF use closure memo 12-10-07 (PDF) (18 pp, 392K)
• Appendix B: County Level Usage for California in Support of CRLF (PDF) (4 pp, 204K)
• Appendix C: Phosmet Sample PRZM (PDF) (3 pp, 17K)
• Appendix D: Sample TREX Input and Output (PDF) (2 pp, 35K)
• Appendix E: ECOTOX Bibliography (PDF) (1234 pp, 6.18MB)
• Appendix F: ECOTOX Endpoints Phosmet Oct 2007 (PDF) (6 pp, 1.89MB)
• Appendix G: HED Phosmet Assessment (PDF) (63 pp, 2.68MB)
• Appendix H: GIS Phosmet (PDF) (15 pp, 2.24MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Propargite and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 131K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (6/20/08)

Effects Memorandum (PDF) (4 pp, 299K) from Christine Hartless, PhD, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (6/16/08)

Propargite Analysis (PDF) (137 pp, 1.51MB) Risks of Propargite Use to the Federally Threatened California Red-legged Frog (6/16/08)

• Appendix A: Ecological Effects Data (PDF) (7 pp, 77K)
• Appendix B: Supplemental Fate Information (PDF) (19 pp, 2.11MB)
• Appendix C: RQ Description (PDF) (2 pp, 66K)
• Appendix D: GIS Maps (PDF) (9 pp, 437K)
• Appendix E: TREX and T-HERP Model Runs (PDF) (6 pp, 31K)
• Appendix F: Part 1 ECOTOX (PDF) (50 pp, 411K)
• Appendix F: Part 2 ECOTOX Spreadsheet (PDF) (2 pp, 447K)
• Appendix G: Incidents (PDF) (1 p, 17.90K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Propyzamide and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 33.3K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (2/20/08)

Effects Memorandum (PDF) (1 p, 59.6K) from Thomas Steeger, Ph.D, Senior Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (2/7/08)

Propyzamide Analysis (PDF) (123 pp, 3.46MB) Risks of Propyzamide Use to the Federally Threatened California Red-legged Frog (2/7/08)

• Appendix A: Aquatic and terrestrial animal probit dose-response analysis (PDF) (18 pp, 82.9K)
• Appendix B: Aquatic exposure modeling inputs (PDF) (8 pp, 59.9K)
• Appendix C: The Risk Quotient Method and Levels of Concern (PDF) (2 pp, 32.3K)
• Appendix D: Spatial analysis of action area (PDF) (26 pp, 3.54MB)
• Appendix E: Example output from T-REX v.1.3.1 model (PDF) (3 pp, 30.8K)
• Appendix F: Example output from TerrPlant v.1.2.2 model (PDF) (2 pp, 25K)
• Appendix G: List of citations accepted and rejected by ECOTOX (PDF) (48 pp, 299K)
• Appendix H: Ecological incidents summary (PDF) (1 p, 11.3K)
• Appendix I: Output from T-HERPS v.1.0 model (PDF) (2 pp, 22.3K)
• Appendix J: Individual Effect Analysis (1 pp, 16.1K)
• Appendix K: Degradate summary (4 pp, 98.9K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Rotenone and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 131K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/17/08)

Effects Memorandum (PDF) (2 pp, 75K) from Thomas Steeger, Senior Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/16/08)

Rotenone Analysis (PDF) (88 pp, 1.14MB)Risks of Rotenone Use to the Federally Threatened California Red-legged Frog (10/16/08)

• Appendix A: Use Closure Memo (PDF) (1 p, 151K)
• Appendix B: Multi-AI Product Analysis (PDF) (1 p, 32K)
• Appendix C: California Pesticide Use Reporting Data (PDF) (21 pp, 222K)
• Appendix D: Risk Quotient Method and LOCs (PDF) (2 pp, 29K)
• Appendix E: ECOTOX Literature Search (PDF) (120 pp, 877K)
• Appendix F: Toxicity Data for Rotenone Degradates and Formulated Products (PDF) (26 pp, 254K)
• Appendix G: Species Sensitivity Distribution Data (PDF) (2 pp, 29K)
• Appendix H: Lake Davis, California, Incident Report (PDF) (3 pp, 27K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Simazine and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 32K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/22/07)

Effects Memorandum (PDF) (2 pp, 66.6K) from Anita Pease, Senior Biologist, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/17/07)

Simazine Analysis (PDF) (147 pp, 2.41MB) Risks of Simazine Use to the Federally Threatened California Red-legged Frog (10/17/07)

• Appendix A: Ecological Effects Data (PDF) (50 pp, 979K)
• Appendix B: Multi-ai Product Analysis (PDF) (3 pp, 104K)
• Appendix C: RQ Method and LOCs (PDF) (3 pp, 123K)
• Appendix D: GIS Maps (PDF) (24 pp, 5.77MB)
• Appendix E: T-REX Output (PDF) (4 pp, 198K)
• Appendix F: TerrPlant Output (PDF) (2 pp, 98K)
• Appendix G: Bibliography of ECOTOX Open Literature (PDF) (230 pp, 3.93MB)
• Appendix H: Aquatic Incidents (PDF) (5 pp, 90K)
• Appendix I: Fugacity Model (PDF) (6 pp, 165K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Telone and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 99.89K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (6/20/08)

Effects Memorandum (PDF) (3 pp, 134K) from Shannon Borges, Biopesticides and Pollution Prevention Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (6/20/08)

Telone Analysis (PDF) (129 pp, 1.55MB) Risks of Telone Use to the Federally Threatened California Red-legged Frog (6/20/08)

• Appendix A: Product Formulations Containing Multiple Active Ingredients (PDF) (3 pp, 75.03K)
• Appendix B: Risk Quotient Method and Levels of Concern (PDF) (1 p, 20.18K)
• Appendix C: PRZM-EXAMS Output Files (PDF) (175 pp, 7.10MB)
• Appendix D: TerrPlant Example Output (PDF) (1 p, 50.06K)
• Appendix E: Bibliography of ECOTOX Open Literature Not Evaluated (PDF) (205 pp, 4.62MB)
• Appendix F: Toxicity Data Available in ECOTOX (PDF) (44 pp, 5.99MB)
• Appendix G: ECOTOX Study Evaluation (PDF) (2 pp, 29K)
• Appendix H: Telone Incidents (PDF) (3 pp, 43.02K)
• Appendix I: HED Risk Assessment with most current mammal toxicity data (PDF) (84 pp, 1.26MB)
• Appendix J: Geographic Information system Output (PDF) (15 pp, 2.23MB)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)

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Effects Determination for Tribufos and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 126K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/17/08)

Effects Memorandum (PDF) (2 pp, 79K) from Melissa Panger and Megan Thynge, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/17/08)

Tribufos Analysis (PDF) (112 pp, 1.09 MB) Risks of Tribufos Use to the Federally Threatened California Red-legged Frog (10/17/08)

• Appendix A: Tribufos Usage Data from the California Department of Pesticide Regulation Pesticide Use Reporting (CDPR PUR, 1999-2006) Database (PDF) (4 pp, 93K)
• Appendix B: Recovery Units, Core Areas, Other Known Occurrences, and Designated Critical Habitat of the CRLF (PDF) (5 pp, 122K)
• Appendix C: Ecological Effects Data for Tribufos (PDF) (7 pp, 92K)
• Appendix D: HED Effects Table for Tribufos (PDF) (1 pp, 33K)
• Appendix E: RQ Methods and LOCs (PDF) (2 pp, 27K)
• Appendix F: PRZM/EXAMS Model Inputs and Outputs for Tribufos Aerial and Ground Applications (PDF)(5 pp, 33K)
• Appendix G: T-REX Example Output (PDF) (2 pp, 66K)
• Appendix H: TerrPlant Example Output for Tribufos (PDF) (1 p, 31K)
• Appendix I: Bibliography of ECOTOX Open Literature for Tribufos (PDF) (52 pp, 411K)
• Appendix J: Accepted ECOTOX Effects Data Table for Tribufos (PDF) (7 pp, 909K)
• Appendix K: T-HERPS Example Output for Tribufos (PDF) (1 p, 48K)
• Appendix L: Spatial Summary for tribufos Uses (PDF) (8 pp, 714K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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Effects Determination for Ziram and the California Red-legged Frog

Transmittal Letter (PDF) (2 pp, 124.25K) from Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division to Bryan Arroyo, Acting Assistant Director for Endangered Species, U.S. Fish and Wildlife Service (10/17/08)

Effects Memorandum (PDF) (2 pp, 56K) from Mah Shamim, Environmental Fate and Effects Division to Arthur-Jean B. Williams, Associate Director, Environmental Fate and Effects Division (10/16/08)

Ziram Analysis (PDF) (134 pp, 1.59MB) Risks of Ziram Use to the Federally Threatened California Red-legged Frog (10/16/08)

• Appendix A: Multi-ai Product Analysis (PDF) (3 pp, 30K)
• Appendix B: Ca PUR Data (PDF) (69 pp, 92K)
• Appendix C: Ziram Ecological Effects Data (PDF) (6 pp, 67K)
• Appendix D: Thiram Ecological Effects Data (PDF) (4 pp, 34K)
• Appendix E: RQ Method and LOCs (PDF) (3 pp, 44K)
• Appendix F: PRZM/EXAMS, AgDRIFT, and AgDISP Output (PDF) (23 pp, 150K)
• Appendix G: T-REX Example Output (PDF) (15 pp, 365K)
• Appendix H: Bibliography of ECOTOX Open Literature Rejected (PDF) (32 pp, 231K)
• Appendix I: EXCEL EXOTOX with Sub-lethal Effects (PDF) (12 pp, 1.43 MB)
• Appendix J: Human Effects Data (PDF) (4 pp, 311K)
• Appendix K: T-HERPS Example (PDF) (1 pp, 58K)
• Appendix L: Spatial Analysis-Overlap Map (PDF) (1 pp, 228K)
• Appendix M: Ziram and Ziram Degradate Chemical Names and Structures (PDF) (2 pp, 16K)
• Appendix N: Spatial Summary Map (PDF) (8 pp, 638K)
• Attachment 1: Life History of the California Red-legged Frog (PDF) (30 pp, 1.4 MB)
• Attachment 2: Baseline Status and Cumulative Effects for the California Red-legged Frog (PDF) (51 pp, 214K)

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