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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
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
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

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
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.

1995

Singhasemanon, N. 1995. Summary of Federal and California Legal Mandates Dealing with Pesticides in Surface Waters, PDF
Spurlock, F. 1995. Determining Sources and Ages of Shallow Ground Waters, with Potential Application to Studies of Pesticide Transport to California Ground Water, PDF.