Daily Rules, Proposed Rules, and Notices of the Federal Government
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You may be potentially affected by this action if you are required to conduct testing of chemical substances under the Toxic Substances Control Act (TSCA), the Federal Food, Drug, and Cosmetic Act (FFDCA), or the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). Since other entities may also be interested, the Agency has not attempted to describe all the specific entities that may be affected by this action. The following list of North American Industrial Classification System (NAICS) codes is not intended to be exhaustive, but rather provides a guide to help readers determine whether this document applies to them. Potentially affected entities may include:
• Agriculture, forestry, fishing and hunting (NAICS code 11).
• Utilities (NAICS code 22).
• Professional, scientific and technical (NAICS code 54).
The docket for this action, identified by docket identification (ID) number EPA-HQ-OPP-2009-0879, is available at
On a biannual interval, an Exposure Modeling Public Meeting will be held for presentation and discussion of current issues related to modeling pesticide fate, transport, and exposure of risk assessment in a regulatory context. Meeting dates and abstract requests are announced through the “empmlist” forum on the LYRIS list server at
You may submit a request to participate in this meeting to the person listed under
1. Development and evaluation of the Pesticide Root Zone Model (PRZM) for estimating pesticide concentrations in groundwater.
2. Status of Drinking Water intake Watershed PCA development exercise.
3. RQ calculations for specific listed terrestrial mammals, birds, reptiles, and amphibians: Model Parameterization and Knowledge base Development.
4. Standard Operating Procedure for calculating degradation kinetics.
5. Aquatic exposure modeling using field studies.
6. Rice modeling: A case study.
7. Evaluation of a simplified SWAT model approach for prediction of insecticide concentrations in a small watershed in northwestern Oregon.
8. iSTREEM®—a Web-based river chemical concentration estimation model.
9. Development and validation of an approach for modeling pyrethroid insecticides in wastewater treatment processes.
10. Monitoring and modeling the fate and transport of a pesticide metabolite from groundwater recharge to drinking water.
11. Comparison of multiple source ground spray deposition curves for determination of buffers in simulation models.
12. Using groundwater monitoring data to evaluate the Tier 1 use of drinking water exposure models.
Environmental protection, Buffers, Degradation kinetics, Drinking water, Exposure assessment, Groundwater, Pesticide exposure model, PRZM, Pyrethroids, Rice model, SWAT, Watershed PCA.