Regulatory Issues

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New regulations and reevaluation notices to registrants to mitigate surface water contamination from pesticide use.

• Memorandum (PDF, 35 kb) from DPR Director Mary-Ann Warmerdam to Tam Doduc, Chair, State Water Resources Control Board (December 2007).

Pyrethroid Reevaluation

• DPR Pyrethroid Forum (April 30, 2007)-Agenda and presentations
• Agenda (PDF, 25 kb)
• Urban Consumer Use Patterns: Off-Site Movement Potential; Mitigation/Optimization Martinez R. (PDF, 524 kb)
• Protecting Water Quality: The Federal and State Clean Water Mandates to Prevent Toxicity and the California Water Boards' Role Mumley, T., Karkoski, J., (PDF, 725 kb)
• Pesticides Pose Compliance Challenges for Urban Runoff Permittees Brossea, G., (PDF, 388 kb)
  • Stormwater Flow Chart (PDF, 18 kb)
• Pyrethroid Problem Formulation Overview Poletika, N., (PDF, 178 kb)
• Pyrethroids Residential and Consumer Products Use in California Assaf, N., (PDF, 237 kb)
• POTWs and the Regulatory World: Pesticides Bobel, P., Moran, K., Weir, C. (PDF, 1.2 mb)
  • Wastewater Flow Chart (PDF, 19 kb)
• Environmental Fate and Aquatic Toxicity of the Synthetic Pyrethroids Dobbs, M., Warinton, J., Giddings, J.M., Hendley, P., Lam, C. (PDF, 338 kb)
• Registration and Re-evaluation of Pyrethroids, Pyrethrins, and Synergist (PPS) Chemicals (U.S. EPA) Pyrethroids, Pyrethrins, and Synergist (PPS) Chemicals Guerry, J. (PDF, 72 kb)
• Urban and Agriculture Prioritization for DPR's Reevaluation of Pyrethroids Jones, R., Markle, J., Hendley, P., Poletika, N., Assaf, N., Mitchell, G., Dobbs, M., Kohne, S. (PDF, 453 kb)
• Overview of Stormwater-Related Scientific Issues and Resources Moran, K. (PDF, 934 kb)
• PCOC: CA Industry PerspectivePCOC: California Industry Perspective Van Steenwyk, D., (PDF, 55 kb)
• California Notice 2006-13 Frequently asked questions about Reevaluation of certain pesticide products containing pyrethroids California Notice 2006-13 (PDF, 136 kb)
• California Notice 2006-13 Notice of Decision to Begin Reevaluation of Certain Pesticide Products Containing Pyrethroids. (PDF, 60 kb)
• List of products included in pyrethroid reevaluation (PDF, 122 kb)
• Summary chart of active ingredient specific data requirements (PDF, 43 kb)

Dormant Spray Insecticides Regulation

• DPR Text of Final Regulations pertaining to the use of dormant spray insecticides and mitigation of surface water contamination. (PDF, 24 kb)
• DPR 05-004 Regulatory action pertaining to the use of dormant spray insecticides and mitigation of surface water contamination. (PDF, 11 kb)

Chlorpyrifos Reevaluation

• California Notice 2004-4. Notice of Decision to Begin Reevaluation of Pesticide Products Containing Chlorpyrifos. April 23, 2004. (PDF, 128 kb)

• California Notice 2003-2. Notice of Decision to Begin Reevaluation of Pesticide Products Containing Diazinon. March 24, 2003. (PDF, 146 kb)