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Reports and Memos
2024
- Luo, Yuzhou and Segawa, Randy. 2024. Modeling for evaluating occupational bystander cancer risk from 1,3-Dichloropropene, PDF
- Brown, Colin, Jazmin Johnson, and Kelly Heal. 2024. Summary of chloropicrin flux studies submitted to the California Department of Pesticide Regulation, PDF
2023
- Brown, Colin. 2023. Modeling broadcast-strip TIF applications with 40% tarp coverage, PDF
- Luo, Yuzhou and R. Uyeda. 2023. Modeling the high detections of 1,3-Dichloropropene in DPR's Air Monitoring Network, PDF
2022
- Brown, Colin. 2022. "Updates to HYDRUS-simulated flux estimates of 1,3-dichloropropene maximum period-averaged flux and emission ratios," Department of Pesticide Regulation Report, September 22, 2022., PDF
- Kandelous, Maziar. 2022. Developing mitigation measures for 1,3-dichloropropene applications: An overview of the Pilot Studies." Department of Pesticide Regulation Report, October 11, 2022., PDF
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Luo, Yuzhou. 2022. "Modeling for mitigation measures to reduce acute exposure from 1,3-Dichloropropene, modeling approach #2," Department of Pesticide Regulation Report, September 12, 2022., PDF
- Luo, Yuzhou. 2023. Addendum: Modeling for mitigation measures to reduce acute exposure from 1,3-Dichloropropene, Revised setback tables, PDF
- Luo, Yuzhou. 2023a. Addendum: Modeling for mitigation measures to reduce acute exposure from 1,3-Dichloropropene, Applications with a minimum soil moisture of 25% of field capacity, PDF
- Luo, Yuzhou. 2022. "Modeling for mitigation measures to reduce acute exposure from 1,3-Dichloropropene, modeling approach #1," Department of Pesticide Regulation Report, September 1, 2022., PDF
- Luo, Yuzhou. 2022. "Modeling for the township cap of 1,3-Dichloropropene applications, modeling approach #2," Department of Pesticide Regulation Report, September 12, 2022., PDF
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Luo, Yuzhou and Colin Brown. 2022. "Modeling for application factors of 1,3-Dichloropropene, modeling approach #2," Department of Pesticide Regulation Report, September 12, 2022., PDF
- Luo, Yuzhou and Colin Brown. 2022. Addendum: Modeling for application factors of 1,3-Dichloropropene, Revised application factors., PDF
- Segawa, Randy and Yuzhou Luo. 2022. "Analysis of the Sufficiency of Acute Mitigation Measures to Mitigate Cancer Risk from 1,3-Dichloropropene," Department of Pesticide Regulation Memo, November 3, 2022., PDF
- Tuli, Atac, Colin Brown and Yvan Delgado. 2022. "Guideline to determine soil water content (moisture) at field capacity," Department of Pesticide Regulation Report, September 20, 2022., PDF
- Tuli, Atac and Delgado, Yvan. 2022. "Analysis of high barrier tarpaulin, cis-1,3-Dichloropropene mass transfer data measured under high relative humidity conditions," Department of Pesticide Regulation Memo, September 20, 2022., PDF
- Troiano, J. and M. Clayton. 2022. Verification of Pesticide Residue Detections Reported in Well Water by the U.S. Geological Survey Groundwater Ambient Monitoring and Assessment Program for Data Collected between May 2004 and June 2018, PDF
2021
- Aggarwal, V. 2021. Legal Agricultural Use Determination for Imidacloprid Detections in California, PDF
- Main, A. 2021. Water-Quality Benchmarks for the Protection of Aquatic Life: A Review of Methodologies, PDF
2019
- Luo, Y. 2019. AERFUM: An Integrated Air Dispersion Modeling System for Soil Fumigants, PDF
- Luo, Y. 2019. Evaluating AERMOD for simulating ambient concentrations of 1,3-dichloropropene, PDF
- Brown, C. 2019. Calculation of 1,3-D application factors based on HYDRUS flux estimates, PDF
- Brown, C. 2019. HYDRUS-simulated flux estimates of 1,3-dichloropropene maximum period-averaged flux and emission ratio for approved application methods, PDF
- Kandelous, M. 2019. A comparison between field-estimated and HYDRUS-simulated emission of 1,3-Dichloropropene from agricultural fields, PDF Appendices, PDF
- Brown, C. 2019. Comparing Emissions From Simulated 18 Inch And 24 Inch Shank Injection Treatments Of 1,3-Dichloropropene, PDF
- Kandelous, M. and Brown, C. 2019. Effect Of Pre-Application Soil Moisture On Emissions Of 1,3- Dichloropropene, PDF
- Brown, C. 2019. Simulation Of 1,3-Dichloropropene Emissions From A Broadcast Application With Partial Low Permeability Film Surface Cover, PDF
- Ruud, N. 2019. Potential for Methomyl Movement to California Groundwater as a Result of Agricultural Use, PDF
- Richardson, K. 2019. Potential for Carbaryl Movement to California Groundwater as a Result of Agricultural Use, PDF
- Bergin, R. 2019. Potential for Chlorothalonil Movement to California Groundwater as a Result of Agricultural Use, PDF
- Tao, J. 2019. Modeling 1,3-Dichloropropene Applications at Parlier, CA on October 9, 2018, PDF
2018
- Ruud, Nels. Legal Agricultural Use Determination for DCPA Degradate Detections in California, PDF
- Budd, R. and K. Peters. 2018. Survey of Pesticide Products Sold in Retail Stores in Northern California, 2017, PDF. Appendices, PDF
- Tao, J. 2018. Modeling a 1,3-Dichloropropene Application at Shafter, CA on January 21, 2018, PDF
- Clayton, M. 2018 Potential for Cyfluthrin Movement to California Ground Water as a Result of Agricultural Use, PDF
- Tao, J. 2018. Modeling a 1,3-Dichloropropene Application at Parlier, CA on September 19, 2018, PDF
2017
- Wang, D. 2017 2017 Update in Thiobencarb Contamination in Sacramento Valley, PDF
- Wang, D. 2017 An Investigation in Thiobencarb Contamination in Sacramento Valley During 2003-2016, PDF
- Clayton, M. 2017 Soil and Water Requirements for Conducting Pesticide Terrestrial Field Dissipation Studies as Required by the California Pesticide Contamination Prevention Act, PDF
- Dan Wang. 2017. Request to End the Reevaluation of Diazinon, PDF
- Yuzhou Luo. 2017. Modeling pyrethroid uses and conservation practices in agricultural areas of California, PDF
- Troiano, J. 2017. Comparison of USEPA and DPR Modeling Approaches and Validation Procedures to Predict Drinking Water Concentrations of Pesticide Residues for Use in Human Health Risk Assessments, PDF
- Craig, K. 2017. Advanced Processessing of Pesticide Use Reports For Data Analysis Conducted by the Environmental Monitoring Branch's Air Program, PDF
- Luo, Y. 2017. Meteorological data processing for ISCST3 and AERMOD, PDF
- Yuzhou Luo. 2017. Modeling bifenthrin outdoor uses in residential areas of California, II. Review of the recent modeling studies by USEPA/EFED, PWG, and CDPR/SWPP, PDF
- Spurlock, F. 2017. Simulated Emission Ratings for Rototill and Soil Capping Applications of Metam Products, PDF
- Tuli, A. 2017. Air Temperature Distribution inside the enclosure of Air Monitoring Network sites located in Ripon, Salinas, and Shafter, PDF
- Clayton, M. 2017. Potential for Propyzamide Movement to California Ground Water as a Result of Agricultural Use — Model Simulations and Results, PDF
- Yuzhou Luo. 2017 Modeling bifenthrin outdoor uses in residential areas of California, PDF
- Vidrio, E. and B. Johnson. 2011 (Updated March 2017 by C. Collins). Part 1: ISCST3 Data Preparation from CIMIS Weather Data, PDF
2016
- Bergin, R. Legal Agricultural Use Determination for Metolachlor/S- Metolachlor Degradate Detections in California, PDF
- Brown, C. Correlating Agricultural Use with Ambient Air Concentrations of 1,3-Dichloropropene During the Period of 2011-2014, PDF
- Craig, K. and Budahn, A. Correlating Agricultural Use with Ambient Air Concentrations of Methyl Bromide During the Period of 2011- 2014, PDF
- Tao, J. Analysis of Agricultural Use and Average Concentrations of 1,3-Dichloropropene in Nine Communities of California in 2006 – 2015, and Calculation of a Use Limit (Township Cap), PDF
- Spurlock, F. Evaluation of Chloropicrin Buffer Zone Credits Under California Use Conditions, PDF
- Johnson, B. Linearity of Chloropicrin Buffer Zone Distances with Flux, PDF
- King, K. Correlating Agricultural Use with Ambient Air Concentrations of Chlorthal-Dimethyl During the Period of 2011-2014, PDF
- Budahn, A. Correlating Agricultural Use with Ambient Air Concentrations of Chlorpyrifos and Chlorpyrifos-Oxon During the Period of 2011-2014, PDF
- Collins, C. Correlating Agricultural Use with Ambient Air Concentrations of Methyl Isothiocyanate during the period of 2011-2014, PDF
- Bergin, R. Legal Agricultural Use Determination for Alachlor Degradate Detections in California, PDF
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Robert Budd and Yuzhou Luo. 2016. Fipronil Monitoring and Model Scenarios, PDF
- Addendum, Robert Budd, Yuzhou Luo and Nan Singhasemanon. 2017. Evaluation of Alternative Fipronil Use Scenarios: Modeling Results, Runoff Trials, and Product Efficacy, PDF
- Brown, C. Evaluation of 2014 Use Data for 1,3-Dichloropropene Submitted by Dow Agrosciences, PDF
2015
- Barry, T. Evaluation of the Air Dispersion Modeling Tool SOFEA2, PDF
- Brown, C . Correlating Agricultural Use with Ambient Concentrations of the Fumigant Chloropicrin During the Period of 2011-2014, PDF
- Budd, R. Survey of Pesticide Use by Homeowners in Two California Residential Neighborhoods, PDF
- Tao, J. Summary of Indoor Air Monitoring for Sulfuryl Fluoride Structural Fumigations, PDF
- Wang, D. Review of the SeawaveQ Model and Challenges of its Application in California, PDF
- Spurlock, F. Variability in Simulated Chloropicrin and 1,3-dichloropropene Volatilization From High Density Polyethylene and Totally Impermeable Film Tarped Broadcast Applications, PDF
- Rachelanne Vander Werf, Adriana Aldana, Jennifer Teerlink and Robert Budd. Retail Store Survey of Consumer-Use Indoor Pesticide Products, 2014, PDF
- Spurlock, F. Variability in Simulated Chloropicrin and 1,3–dichloropropene Volatilization From Bare Ground Broadcast Applications, PDF
- Tao, J. AERMOD Modeling for Two Air Monitoring Studies of Structural Fumigation With Sulfuryl Fluoride, PDF
- Barry, T. Description of the Method Used to Expand the Chloropicrin Buffer Zone Tables, PDF
- Yuzhou Luo and Xin Deng. Methodology for Prioritizing Pesticides for Surface Water Monitoring in Agricultural and Urban Areas III: Watershed-Based Prioritization, PDF
- DaSilva, A. Review of Fipronil Mitigation Strategies for the Protection of Surface Water. (Updated), PDF
2014
- Clayton, M. Evaluation of Soil Bulk Density and Soil Water Status in Field Study Entitled "Direct Flux Determination of Chloropicrin Emissions From Shank, Bedded, Non-tarped Applications", Document #0199-0137, PDF
- DaSilva, A. Review of Fipronil Mitigation Strategies for the Protection of Surface Water, PDF
- Johnson, B. Comparison of One-Year Township Monitoring Results From Merced to SOFEA Simulation Results, PDF
- Jennifer Teerlink. Pyrethroids in Wastewater: Review of Potential Sources, Occurrence, and Fate, PDF
- Wofford, Pam. Calculations of Use Adjustment Factors for 1,3-Dichloropropene with the Use of Totally Impermeable Film for Strip Shank Applications, PDF
- Rosemary Neal. Evaluation of "2013 Pesticide Use Data of Adjusted Pounds 1,3-Dichloropropene in California", Submitted by Dow Agrosciences on 4/25/14, PDF
- Michael P. Ensminger. Review of Representative Currently Registered Fipronil Product Labels in California, PDF
- Yuzhou Luo, Michael Ensminger, Robert Budd, Xin Deng, and April DaSilva. July 2014. Methodology for Prioritizing Pesticides for Surface Water Monitoring in Agricultural and Urban Areas II: Refined Priority List, PDF
- Spurlock, Frank. Hydrus Estimates of Cumulative 1,3-Dichloropropene and Chloropicrin Emissions from Low Permeability Tarp Strip Applications, PDF
- Johnson, Bruce. How to Calculate the Application Factor for New 1,3-Dichloropropene Application Methods, PDF
- Xuyang Zhang and Nan Singhasemanon. Modeling to Determine the Maximum Allowable Leach Rate for Copper-Based Antifouling Products in California Marinas, PDF
- Xuyang Zhang. Analysis of Recent Chlorpyrifos Monitoring Data in Two Water Quality Coalitions of the San Joaquin Valley, PDF (Revised January 23, 2014)
2013
- Johnson, Bruce. Calculation of Use Adjustment Factors for 1,3-Dichloropropene With the Use of Totally Impermeable Film for Broadcast Shank Applications, PDF
- Tao, Jing. Time Series Analysis and Forecasting of Ventura County Nonfumigant Pesticide Volatile Organic Compound Ozone Season Emissions–2013 Update, PDF
- Tao, Jing. Time Series Analysis and Forecasting of Volatile Organic Compound Emissions from Nonfumigant Pesticides Used in San Joaquin Valley during The Ozone Season, PDF
- Yuzhou Luo, Xin Deng, Robert Budd, Keith Starner, Michael Ensminger 2013. Methodology for Prioritizing Pesticides for Surface Water Monitoring in Agricultural and Urban Areas May 28, 2013, PDF
- Robert Budd, Xin Deng, Michael Ensminger, Keith Starner, and Yuzhou Luo. 2013. Method for Prioritizing Urban Pesticides for Monitoring California's Urban Surface Waters, PDF
- KayLynn Newhart. 2013. Summary of New Pesticide Active Ingredient Use Tracking for Field Monitoring in Surface Water from 2005-2010, PDF
- Johnson, B. 2013. Analysis of 1, 3-Dichloropropene Emissions for Field One in the Lost Hills Study Considering High Flux Densities from the Bare Ground near the Tarp Edge, PDF
- Johnson, B. 2013. Correction of Cumulative Volatilization Percentages as Found in [0199-0138], PDF
- Spurlock, F. 2013. Effect of Chloropicrin Application Practices on Cumulative and Maximum Chloropicrin Flux, PDF
- Richardson, K. and M. Clayton. Review of Equipment Used to Sample Soil for Determination of Bulk Density, PDF
- Spurlock, F., B. Johnson, and A. Tuli. 2013. Hydrus Simulation of Chloropicrin and 1,3-Dichloropropene Transport and Volatilization in the Lost Hills Fumigation Trials, PDF
- Tuli, A. 2013. Evaluation of Solar Panels' Ability to Charge Battery-Powered Air Sampling Pumps, PDF
- Tao, J. 2013. Time Series Analysis and Forecasting of Ventura County Nonfumigant Pesticide Volatile Organic Compound Ozone Season Emissions – 2012 Update, PDF
- Johnson, B. and F. Spurlock. 2013. Stochastic Evaluation of Back Calculation Procedures for Estimating Flux Using Data from the Lost Hills Study, PDF
- Johnson, B. 2013. Preliminary Look at the Relationship Between Maximum Air Temperature and Maximum 15cm Soil Temperature Based on the California Irrigation Management Information Systems Station Data, PDF
2012
- johnson, B. 2012. Reanalysis of Lost Hills Data for Consistency and Error Detection, PDF
- Johnson, B. 2012. Details of Hydrus Modeling of Shank Trace Sampling Results, PDF
- Aggarwal, V. 2012. Evaluating Analytical Methods for Compliance with the Pesticide Contamination Prevention Act Requirements, PDF
- Neal, R. and F. Spurlock 2012. Reassessment of Nonspatial Fractions in the VOC Inventory, PDF
- Zhang, Xuyang, Keith Starner, and Frank Spurlock. 2012. Analysis of Chlorpyrifos Agricultural Use in Regions of Frequent Surface Water Detections in California, USA, PDF
- Johnson, Bruce and Frank Spurlock 2012. A Method for Estimating Near-Field Air Concentrations Following Tarp Cutting for Broadcast Applications, PDF
2011
- Tao, Jing. 2011. Time Series Analysis and Forecasting of Ventura County Nonfumigant Pesticide Volatile Organic Compound Ozone Season Emissions-2011 Updat, PDF
- Starner, Keith and Xuyang Zhang 2011. Analysis of Pesticide Detections in California Surface Waters, 1991-2010: Identification of detections exceeding US EPA Aquatic Life Benchmarks, PDF
- Pepple, Mark. 2011. Procedure For Identifying Pesticides With A Potential To Contaminate Surface Water, PDF
- Johnson, B. 2011. Compilation of Studies Estimating Near Surface Concentrations of 1,3-Dichloropropene or Chloropicrin, PDF
- Zhang, Xuyang and Keith Starner. 2011. Analysis of Diazinon Agricultural Use in Regions of Frequent Surface Water Detections, PDF.
- Vidrio, E. and B. Johnson. 2011. Part 1: Database Creation of ISCST3-ready Files Prepared from CIMIS Meteorological Network Data, PDF (Revised January 2014)
- Johnson, B. and E. Vidrio. 2011. Part 2: Processing CIMIS Meteorological Files to Produce ISCST3-ready Weather Files: Technical Manual, PDF (Revised January 2014)
- Barry, T., Tao, J. 2011. Development of Flux Profiles for New Chloropicrin Application Methods, PDF
- Clayton, M. 2011. Selection of Pesticide Active Ingredients for Future Analytical Method Development and Ground Water Monitoring, PDF
- Johnson, B. 2011. Review of Raven Film Permeability Tests, PDF
- Johnson, B. 2011. Study Requirements for Film Permeability Measurements, PDF
- Vidrio, E. 2011. Detailed Emission Potential Calculations of High Use Pesticide Products Using a Confidential Statement of Formula Based Method, PDF
- Spurlock, F. 2011. Simulation of Three Untarped 1,3-Dichloropropene Flux Studies Using Hydrus, PDF
2010
- Osienski, K., E. Lisker, and R. Budd 2010. Surveys of Pesticide Products Sold in Retail Stores in Northern and Southern California, 2010, PDF
- Zhang, X. 2010. Detections of Pyrethroid Insecticides in Surface Waters from Urban Areas of California, 1993-2010, PDF
- Deng, X. 2010. Summary of the Final Report "Pelagic organism decline (POD): acute and chronic invertebrate and fish toxicity testing in the Sacramento-San Joaquin Delta", PDF
- Zhang X. and F. Spurlock. 2010. Comparison of Use and Sales of Group III Pyrethroid Pesticides, PDF
- Johnson, B., Barry, T., and Wofford, P. 2010. Workbook for Gaussian Modeling Analysis of Air Concentration Measurements, PDF
- Spurlock, F., Bergin, R., Tuli, A., and Johnson, B. 2010. Fumigant Transport Modeling Using Hydrus: 4. Development and Testing of Modifications to Enhance Fumigant Field Simulations, PDF
- Johnson, B. 2010. Documentation for WEATH6A Meteorological Data Processing Program, PDF
- Zhang, X. 2010. Potential Impacts of Citrus Pesticide Use on Surface Water, PDF
- Luo, Y. 2010. Pesticide Use for Commercial Citrus Production in California, 2005-2008, PDF
- Spurlock, F. 2010. Fumigant Transport Modeling Using Hydrus: 3. Selection, Temperature Dependence and Sensitivity Analysis of Fumigant Physicochemical Properties, PDF
- Barry, T. 2010. Review of the "Generic Verification Protocol for the Verification of Pesticide Spray Drift Reduction Technologies for Row and Field Crops", PDF
- Fan, S., B. Johnson, and R Segawa. 2010. Methodology to Determine Methyl Bromide Use Cap, PDF
- Luo, Y. 2010 Geographic Information System Mapping and Preliminary Data Analysis for Thiobencarb Use in California, 2003-2009, PDF
- Johnson, B. 2010. Report on Parlier SOFEA-HEE5CB Simulation, PDF
2009
- Johnson, B. 2009. Subchronic 1,3-Dichloropropene Air Concentration Estimates, PDF
- Johnson, B. 2009. Calculation of Screening Concentrations for 1,3-Dichloropropene, PDF
- Tao, J. 2009. Time Series Analysis and Forecasting of Ventura County Nonfumigant Pesticide Volatile Organic Compound Ozone Season Emissions - 2009 Update, PDF
- Tuli, A. 2009. Proposed Modifications in HYDRUS (1,2/3D) Software to Enhance Modeling Solute Diffusion and Gaseous Diffusion in Soils, PDF
- Starner, K. 2009. Spatial and Temporal Analysis of Diazinon Irrigation-Season Use and Monitoring Data, PDF
- Kusler, Jennifer. 2009. Copepods of the San Francisco Estuary: potential effects of environmental toxicants, PDF
- Tao, J. 2009. Analysis of Sampling Intensity for Proposed Air Monitoring Network Based on Pesticide Monitoring Data From Parlier, California,, PDF
- Pyatt, E., 2009. Request to Develop Analytical Methods for Azoxystrobin, Chlorothalonil, Dichloran, Iprodione, and Vinclozolin and Significant Degradates in Well Water, PDF
- Spurlock, FC. 2009. Fumigant Transport Modeling Using Hydrus: 2. Comparison of Model Simulations to Analytical Solutions of Fick's Second Law of Diffusion, PDF
- Spurlock, FC. 2009. Time Series Analysis and Forecasting of Ventura County Nonfumigant Pesticide Volatile Organic Compound Emissions, PDF
- Troiano, J., Clayton, M. 2009. Modification of the Probabilistic Modeling Approach to Predict Well Water Concentrations Used for Assessing the Risk of Ground Water Contamination by Pesticides, PDF (Appendix available upon request)
- Johnson, B. and FC Spurlock. 2009. Dominant Soil Types Associated with Fumigant Applications in Ozone Nonattainment Areas, PDF
- Johnson, B. 2009. Preliminary Evaluation of Dow AgroSciences Proposed Update to the California Management Plan: 1,3-Dichloropropene, PDF
2008
- Starner, K. 2008. Review of the U.S. Environmental Protection Agency Aquatic Life Benchmarks With Monitoring Recommendations, PDF
- Troiano, J., Clayton, M. 2008. Back Calculation to Application Rate using Pesticide Soil Concentration and Estimated Terrestrial Field Dissipation Half-life, PDF
- Johnson, B. 2008. Dow Agrosciences-CHAIN2D Review, PDF
- Barry, T. 2008 Development of Sub-Chronic Air Concentration Estimates Associate with Single Fumigant Application, PDF
- Barry, T. 2008 Screening Level Air Concentration Estimates for Worker Health and Safety Exposure Appraisals, PDF
- Dias, J., Clayton, M. 2008. Updated Evaluation of the Ground Water Contamination Potential of the Regulations to Reduce Volatile Organic Compounds by Controlling Field Fumigant Emissions, PDF
- McKinney, M. 2008. Analysis of Anomalously High Emission Potential Values for Certain Spray Oil Products, PDF
- Analysis Memo, PDF (72 kb).Johnson, B. 2008. Calculation of Eight-Hour Maximum Methyl Isothiocyanate Flux from Dazomet Applications.
- (2.2 mb). Spurlock, F. 2008. Fumigant Transport Modeling Using HYDRUS: Estimation of Soil Hydraulic Parameters Using Pedotransfer Functions.
- Analysis Memo, PDF (201 kb). Johnson, B. 2008. Calculation of Method Use Fractions for 1,3- Dichloropropene.
- Analysis Memo, PDF (456 kb). Spurlock, F. 2008. Using Environmental Fate Data to Predict Pesticide Ground Water Contamination Probabilities.
2007
- Barry, T. 2007. Resolving Sources of Differences in Perfum Methyl Isothiocyanate Buffer Zones Between Bakersfield and Ventura, PDF
- Starner, K. 2007. Assessment of Acute Aquatic Toxicity of Current-Use
Pesticides in California, with Monitoring Recommendations, PDF
- Appendix A, PDF Toxicity Assessment Details, Agricultural Use by County, High Use Regions and Monitoring Data, Detailed Assessment Results.
- Appendix B-1, PDF Agricultural Use by County.
- Appendix B-2, PDF Agricultural Use by County.
- Appendix C, PDF High Use Regions and Monitoring Data.
- Appendix D, PDF Detailed Assessment Results.
- Spurlock F. 2007. Reevaluation Data Requirements of Group II Synthetic Pyrethroids, PDF
- Troiano, J., Clayton, M. 2007. Summary of Total Soil Depth and Segment Thickness on Evaporation and Drainage Estimates and on Predicted Bromide Movement for LEACHP Model with Comparison to the PRZM Model, PDF
- Langley, C., 2007. Summary of Analysis of the Relationship between Percentiles of the Whole Field Buffer Zone Distribution and the Maximum Direction Buffer Zone Distribution, PDF
- Barry, T., Johnson, B. 2007. Analysis of the Relationship between Percentiles of the Whole Field Buffer Zone Distribution and the Maximum Direction Buffer Zone Distribution, PDF
- Dias, J., Clayton, M. 2007. Evaluation of the Ground Water Contamination Potential of Proposed Fumigant Use Regulations, PDF
- Roush, T. 2007. Flux Estimation and Emission of Methyl Isothiocyanate Resulting from a Small Plot Application of Dazomet in Watsonville, California, PDF
- Johnson, B. 2007. Simulation of Concentrations and Exposure Associated with Updated Township Caps for Merced County for 1,3-Dichloropropene, PDF
- Barry, T., F. Spurlock, R. Segawa. 2007. Pesticide Volatile Organic Compound Emission Adjustments for Field Conditions and Estimated Volatile Organic Compound Reductions-Initial Estimates, PDf. Appendix 2 and 3, PDF
- Johnson, B. 2007. Simulation of Concentrations and Exposure Associated with Dow Agrosciences-Proposed Township Caps for Merced County for 1,3-Dichloropropene, PDF
- Johnson, B. 2007. Simulation of Concentrations and Exposure Associated with Dow Agrosciences-Proposed Township Caps for Ventura County for 1,3-Dichloropropene, PDF
- Barry, T. 2007. Development of Additional Methyl Isothiocyanate Buffer Zones for the Metam Sodium Mitigation Proposal, PDF
- Barry, T., J. Marade. 2007. Air Dispersion Modeling Analysis of Priority Incident 38-MON-05, PDF. Figures 2 to 5, PDF. Figures 6 to 10, PDF . Figures 11 to Appendix, PDF.
2006
- Lee, M. 2006. Review of Phase II Report on Methodologies for Deriving Water Quality Criteria: Executive Summary and Chapters 1-3, PDF
- Spurlock, F. 2006. Brief Comparison of Pyrethrin and Synthetic Pyrethroid Fate Characteristics, PDF
- Barry, T. 2006. Alternate Methidathion Application Air Concentration Estimates, PDF
- Wofford, P., B. Johnson. 2006. Dazomet Flux Analysis and Recommendations for Future Study. PDF
- Andrews, C. 2006. Development of Methyl Isothiocyanate Buffer Zones Using the Probabilistic Exposure and Risk Model for Fumigants Version 2 (Perfum2), PDF
2005
- Spurlock, F. 2005. Summary of Published Synthetic Pyrethroid Monitoring and Bioassay Data for California Urban and Agriculturally-Dominated Waterways, PDF
- Sanders, J. 2005. Background on Copper Antifouling Paint Issues and Evaluation of the Department of Pesticide Regulation's Options, PDF
- Barry, T. 2005. Estimation of Methyl Isothiocyanate Air Concentrations Associated with Priority Case Number 026-KER-05, PDF
- Newhart, K. 2005. Environmental Monitoring Branch's Aquatic Pesticide Registration Review, PDF
- Johnson, B., T. Barry. 2005. Estimation of Methyl Bromide Flux For Siemer Studies TC199.1 and F1.1 and Use of Standard Weather Conditions, PDF
- Sanders, J., B. Johnson, T. Barry and R. Segawa. 2005. General Guidance for Conducting Fumigant Field Studies.
2004
- Spurlock, F. 2004. Work Plan for Development of Empirical Surface Water Runoff Index From Field-Measured Infiltration Data, PDF
- Spurlock, F. 2004. Analysis of Recent Chlorpyrifos Use and Surface Water Monitoring Data, PDF
- Troiano, J., and M. Clayton. 2004 Probabilistic Modeling For Risk Assessment of Ground Water Contamination by Pesticides, PDF
2003
- Spurlock, F. 2003. Guidance for Diazinon Reevaluation Studies, PDF
- Singhasemanon, N. 2003. US Clean Water Act Sec. 303(d): Final List for Registered Pesticides 2002, PDF
- Lee, M. 2003. Process for Responding to the Presence of Pesticides in Surface Water, PDF
- Troiano, J., and J. Marade. 2003. Relationship of Yearly Bromacil Use to Bromacil Detections in Wells Located in Fresno and Tulare Counties of California, PDF
2002
- Guo, L. 2002. Evaluation of Environmental Models for Assessing Surface Water Contamination by Pesticides, PDF
- Gill, S. 2002. Overview of Surface Water Monitoring Alternatives, PDF
- Troiano, J., and C. Nordmark. 2002. Revised 2004. Distribution of Triazine Residues in Wells in Relation to Current and Proposed Maximum Contaminant Levels (MCLs), PDF
2000
- Guo, L. and F. Spurlock 2000. Recommendation for the Priority Surface Water Monitoring Studies on Selected Pesticides, PDF
- Barry, T. 2000. Peak to mean air concentration estimation for fumigants, PDF
- Segawa, R., B. Johnson, T. Barry. 2000. Summary of Off-Site Air Monitoring for Methyl Bromide Field Fumigations, PDF
- Segawa, R., T. Barry, B. Johnson. 2000. Recommendations for Methyl Bromide Buffer Zones for Field Fumigations, PDF
1999
- Barry, T. 1999. Methyl Bromide Emission Ratio Groupings, PDF
- Biermann and Barry, 1999. Evaluation of Charcoal Tube and SUMMA Canister Recoveries for Methyl Bromide Air Sampling, PDF.