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Risk Assessment

Risk Assessment
Standardized Risk Assessment Methodology (SRAM) Publication
Date		 File Size
Approval Letter for the Revised Final 2022 SRAM Rev 2 Addendum and RTCs February 2023 155 KB
(Revised) Final 2022 Standardized Risk Assessment Methodology Revision 2 Addendum February 2023 69.4 MB
Responses to DTSC Comments on the Standardized Risk Assessment Methodology Revision 2 Addendum February 2023 71 KB
Conditional Approval Letter for the 2022 Standardized Risk Assessment Methodology Revision 2 Addendum January 2023 469 KB
Final 2022 Standardized Risk Assessment Methodology Revision 2 Addendum December 2022 67.7 MB
Responses to DTSC Comments on the Draft 2022 Standardized Risk Assessment Methodology Revision 2 Addendum December 2022 314 KB
DTSC Comments on Boeing 2022 Draft SRAM Revision 2 Addendum October 2022 534 KB
Draft 2022 Standardized Risk Assessment Methodology Revision 2 Addendum September 2022 71.1 MB
Revised Standardized Risk Assessment Methodology Work Plan, Revision 3 July 2018 22.2 MB
Letter from Mark Malinowski/DTSC to Mark Zeller/Boeing re: DTSC Comments on the Boeing Company’s Draft Standardized Risk Assessment Methodology Work Plan, Revision 3 January 2018 11.0 MB
Draft Standardized Risk Assessment Methodology Work Plan, Revision 3 May 2017 20.8 MB
Letter from DTSC to RPs regarding Risk Assessments December 2016 353 KB
Letter from DTSC to Boeing regarding Approval of the Standardized Risk Assessment Methodology Revision 2 Addendum August 2014 376 KB
Final Standardized Risk Assessment Methodology Revision 2 Addendum August 2014 57.0 MB
SRAM - 2 Addendum Comment Letter June 2013 1.3 MB
Technical Memorandum sent from MWH to DTSC regarding Human Health Risk-Based Screening Levels for Chemicals in Soil at the Santa Susana Field Laboratory February 2012 905 KB
Letter from Michael Bower/Boeing to Mark Malinowski/DTSC re: Memorandum of Understanding for Standardized Risk Assessment Methods Update and Inclusion of Technical Memoranda August 2011 316 KB
Comments on Human Health Risk Assessment Sum of Fractions Methodology for Chemicals at SSFL July 2011 1.5 MB
SRAM Agency Review Comments - Document Index September 2005 110 KB
SRAM Workplan Revision 2 -Text, Tables and Figures September 2005 10.2 MB
SRAM Workplan Revision 2 - Figures and Diagrams September 2005 5.6 MB
SRAM Workplan Revision 2 - Appendix A September 2005 11.1 MB
SRAM Workplan Revision 2 - Appendix B September 2005 490 KB
SRAM Workplan Revision 2 - Appendix C September 2005 5.2 MB
SRAM Workplan Revision 2 - Appendix D September 2005 13.0 MB
SRAM Workplan Revision 2 - Appendices E - K September 2005 5.1 MB

Human and Ecological Risk Division (HERD) Documents Publication
Date		 File Size
Selecting Inorganic Constituents as Chemicals of Potential Concern at Risk Assessments at Hazardous Waste Sites and Permitted Facilities - Final Policy February 1997 118.8 MB

Vapor Validation Study Publication
Date		 File Size
Vapor Validation Study Report July 2007 11.4 MB
Vapor Validation Study Report - Appendices July 2007 21.7 MB

Rural Residential Risk-Based Screening Development Publication
Date		 File Size
Expedited List of Rural Residential Risk-Based Screening Levels - Tables December 2010 1.6 MB
Letter from Donald Greenlee/DTSC to Mark Malinowski/DTSC Regarding HERD Comments on "Rural Residental Risk-Based Screening Levels for Chemicals in Soil, Draft Technical Memorandum" September 2010 1.8 MB
Rural Residential Risk-Based Screening Levels for Chemicals in Soil Draft Technical Memorandum July 2009 1.7 MB
Rural Residential Risk-Based Screening Levels for Chemicals in Soil Draft Technical Memorandum - Attachment 1 - Index July 2009 3.9 MB

Technical Memorandum Publication
Date		 File Size
Technical Memorandum - Final Inhalation Toxicity Reference Value Updates for Use in Ecolocial Risk Assessment with Cover Letter from Michael Bower/Boeing to Mark Malinowski/DTSC June 2011 2.2 MB
Technical Memorandum from Bruce Narloch/MWH to DTSC Regarding Inhalation Toxicity Reference Value Updates for Use in Ecological Risk Assessments at Santa Susana Field Laboratory April 2010 518 KB
Technical Memorandum from Bruce Narloch/MWH to DTSC Regarding Inhalation Toxicity Reference Value Updates for Use in Ecological Risk Assessments at Santa Susana Field Laboratory March 2010 961 KB

Agency Review Comments Publication
Date		 File Size
Memorandum from Brian Faulkner/DTSC to Mark Malinowski/DTSC Regarding Review of the Draft Ecological Effects Characterization Technical Memorandum May 2011 631 KB
Memorandum from Brian Faulkner/DTSC to Gerard Abrams/DTSC Regarding Review of Proposed Soil Inhalation Toxicity Reference Values for Santa Susana Field Laboratory May 2010 2.9 MB
Memorandum from Donald Greenlee/DTSC to Gerard Abrams/DTSC Regarding Other Comments on the "RFI Report: Vapor Migration Modeling Validation Study and VOC Surface Flux and Ambient Air Monitoring at the Former Liquid Oxygen Plant Site" March 2010 909 KB
Memorandum from Dan Gallagher/DTSC to Gerard Abrams/DTSC Regarding Vapor Migration Validation Study February 2010 5.9 MB
Memorandum from Laura Rainey/DTSC to Gerard Abrams/DTSC Regarding Comments on RCRA Facility Investigation Report, Vapor Migration Modeling Validation Study and VOC Surface Flux and Ambient Air Monitoring at the Former Liquid Oxygen Plant Site February 2010 3.1 MB

Correspondence Publication
Date		 File Size
DTSC Modification Letter for Comment #1 of DTSC Comments on Draft Risk Assessment for RFI Subarea 1B Southwest May 2023 197 KB
Letter from M.Bower, Boeing to J.Lincoln, DTSC re DTSC Additional Request for 95 Percentile UCL Concentrations for Boeing RFI Subarea 1A Central September 2018 2.1 MB
Letter from M.Bower to J.Lincoln re DTSC Additional Request for 95 Percentile UCL Concentrations for Boeing RFI Subarea 5/9 South August 2018 2.2 MB
Letter from J.Lincoln, DTSC to M.Bower, Boeing re Additional Request for 95 UCL Concentrations for the 1A Central Subarea Sites August 2018 2.1 MB
95 UCLs from 1A Central Sites July 2018 3.0 MB
Letter from J.Lincoln to M.Bower Re Additional Request for 95 UCL Concentrations for the 5/9 South Subarea Sites July 2018 1.9 MB
95 UCLs from 5/9 South Sites July 2018 14.2 MB
Letter from R.Paulson to M.Bower Re DTSC Request for 95 UCL Concentrations for the 1A Central Subarea Sites June 2018 497 KB
Letter from M.Bower to R.Paulson Re Response to DTSC Request for 95 UCL Concentrations for Boeing RFI Subarea 5/9 South June 2018 631 KB
March 15 through May 21 2018 Letters Referenced in the Cover Letter to the Revised SRAM 3 dated July 24, 2018 May 2018 3.1 MB
Letter from R.Paulson to M.Bower Re DTSC Request for 95 UCL Concentrations for the 5/9 South Subarea Sites May 2018 1.5 MB
Letter from Mark Malinowski/DTSC to Randy Ueshiro/Boeing Regarding Department of Toxic Substances Control Review of the Draft Ecological Effects Characterization Technical Memorandum June 2011 1.9 MB
Letter from Gerard Abrams/DTSC to Thomas Gallacher/Boeing Regarding Transmittal of DTSC Comments on Proposed Soil Inhalation Toxicity Reference Value Updates for Use in Ecological Risk Assessments at the Santa Susana Field Laboratory July 2010 3.4 MB
Letter from Gerard Abrams/DTSC to Arthur Lenox/Boeing Regarding Transmittal of DTSC Comments on Soil Vapor Validation Study March 2010 48 KB

Ecological Risk Assessment Publication
Date		 File Size
DTSC Approval Letter for the Boeing Company’s Final Large Home Range Ecological Risk Assessment March 2023 383 KB
Boeing Large Home Range Ecological Risk Assessment Report March 2023 6.9 MB

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