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Draft National Level Listed Species Biological Evaluation for Propazine

In November 2020, EPA released the draft Biological Evaluation (BE) assessing risks to listed species from labeled uses of propazine. The term "listed species" refers to those that are federally listed as endangered or threatened, as well as experimental populations and species that are proposed and candidates for listing. The draft BE was conducted according to the Revised Method for National Level Listed Species Biological Evaluations of Conventional Pesticides.

The Revised Method described in this document incorporates:

  • Recommendations from the National Research Council of the National Academy of Sciences (NAS);
  • EPA’s “lessons learned” during the first three pilot BEs;
  • Public comments provided through
    • stakeholder meetings, 
    • the docket on the draft BEs for chlorpyrifos, diazinon and malathion, and 
    • the docket on the proposed Revised Method;
  • Comments received during consultation with federally recognized tribes; and
  • Input provided by U.S. Fish and Wildlife Service, National Marine Fisheries Service and the US Department of Agriculture.

The draft BE for propazine is provided below. The models and tools used to conduct this BE can be found here. In January 2021, after the draft BE was completed, the only propazine registrant requested to voluntarily cancel its remaining product registrations. On June 8, 2021, EPA issued a final cancellation order for propazine, which terminated the last propazine products registered in the United States; therefore, EPA did not complete a final BE for this active ingredient.

The draft BE can be found at www.regulations.gov under docket EPA-HQ-OPP-2020-0514.

On this page:
  • Draft Propazine Executive Summary
  • Chapter 1: Draft Propazine Problem Formulation
    • Attachments
    • Appendices
  • Chapter 2: Draft Propazine Effects Characterization
    • Attachments
    • Appendices
  • Chapter 3: Draft Propazine Exposure Characterization
    • Attachments
    • Appendices
  • Chapter 4: Draft Propazine Effects Determinations
    • Attachments
    •  Appendices

Draft Propazine Executive Summary (DOCX) 

Chapter 1: Draft Propazine Problem Formulation (DOCX) 

Attachments

  • ATTACHMENT 1-1.  Methodology for Estimating Exposures to Terrestrial Animals (mammals, birds, reptiles, amphibians and invertebrates) (DOCX) 
  • ATTACHMENT 1-2. Aquatic Bin Assignments (XLSX) 
  • ATTACHMENT 1-3. Explanation of Census Of Agriculture Table Generation (PDF) 
  • ATTACHMENT 1-4. Usage Data Source Summary-Crosswalk (PDF) 
  • ATTACHMENT 1-5. PVP Analysis (DOCX)  

Appendices

  • APPENDIX 1-1. List of Current Propazine Registrations (DOCX) 
  • APPENDIX 1-2. Commitment Letters (PDF) 
  • APPENDIX 1-3. Propazine Scenario Development (DOCX) 
  • APPENDIX 1-4. Usage Data for Propazine (PDF) 
  • APPENDIX 1-5. CDL to UDL Crosswalk for Propazine (DOCX) 
  • APPENDIX 1-6. Use Site Footprint for Propazine (DOCX) 
  • APPENDIX 1-7. Determination of Overlap of Likely Propazine Exposure Area and Listed Species Ranges and Critical Habitat for Species Located in the 48 Contiguous United States (ConUS) (DOCX) 
  • APPENDIX 1-8. Evaluation of Residues of Concern for Triazine ESA Biological Evaluations (DOCX) 

Chapter 2: Draft Propazine Effects Characterization (DOCX) 

Attachments

  • ATTACHMENT 2-1. Effects Arrays (DOCX) 
  • ATTACHMENT 2-2. Ecological Incidents (DOCX) 

Appendices

  • APPENDIX 2-1. Data Used in the Data Array (DOCX) 
  • APPENDIX 2-2. Accepted ECOTOX Database (XLSX) 
  • APPENDIX 2-3. Open Literature Review for Propazine (DOCX) 
  • APPENDIX 2-4. Propazine Studies Submitted to US EPA [from Office of Pesticide Programs Information Network (OPPIN)] (XLSX) 
  • APPENDIX 2-5. Propazine Species Sensitivity Distribution Analysis for Aquatic Plants (DOCX) 
  • APPENDIX 2-6. Propazine Species Sensitivity Distribution Analysis for Terrestrial Plants (DOCX) 

Chapter 3: Draft Propazine Exposure Characterization (DOCX)  

Attachments

  • ATTACHMENT 3-1: Background Document: Aquatic Exposure Estimation for Endangered Species (DOCX) 

Appendices

  • APPENDIX 3-1. Supporting Material For Aquatic Modeling (Propazine) (XLSX) 
  • APPENDIX 3-2. Aquatic Modeling Runs (Propazine) (Please save this file prior to opening) (ZIP) 

Chapter 4: Draft Propazine Effects Determinations (DOCX) 

Attachments

  • ATTACHMENT 4-1. Criteria for Strength of Evidence in LAA Determination (DOCX) 

Appendices

  • APPENDIX 4-1. Species Effects Determination Tables (XLSX) 
  • APPENDIX 4-2. Input Parameters for MAGtool (XLSX) 
  • APPENDIX 4-3. Curve Number Scaling Factors (XLSX) 
  • APPENDIX 4-4. Application Date Scaling Factors (XLSX) 
  • APPENDIX 4-5. Analysis of Granular (DOCX) 
  • APPENDIX 4-6. Analysis Method and Results for Downstream Monitoring (DOCX) 
  • APPENDIX 4-7. Downstream Monitoring Analysis (XLSX) 
  • APPENDIX 4-8. Additional Qualitative Species Analyses (DOCX) 
  • APPENDIX 4-9. MAGtool and Weight of Evidence Output for Individual Species (ZIP) 

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Last updated on October 1, 2024
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