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Sediment Cap Document

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1 Introduction
2 Capping Overview
2 Capping Overview
2.1 Objectives of Capping
2.2 Chemical Isolation Function
2.3 General Cap Types
2.4 Cap Layers and Composition
2.5 Chemical Isolation Design, Construction, and Monitoring Process
3 Performance Objectives and Design Concepts
3 Performance Objectives and Design Concepts
3.1 Chemical Isolation Performance Targets
3.2 Development of Chemical Isolation Design Criteria
3.3 Chemical Isolation Design Concepts
3.4 Site Characteristics for Chemical Isolation Design
3.5 Design Constraints and Optimization
3.6 Resilience and Sustainability Considerations
3.7 Coordination with Construction and Monitoring Approaches
4 Chemical Isolation Design Data Needs
5 Chemical Isolation Layer Modeling
5 Chemical Isolation Layer Modeling
5.1 Introduction to Modeling Approaches and Tools
5.2 Sediment Processes
5.3 Summary of Available Modeling Tools for Cap Chemical Isolation Design
5.4 Defining Modeling Objectives
5.5 Model Inputs
5.6 Sensitivity and Uncertainty
5.7 Post-Construction Audit
5.8 Model Documentation
6 Chemical Isolation Construction Considerations
6 Chemical Isolation Construction Considerations
6.1 Construction Specifications
6.2 Placement Methods
6.3 Amendment Dosing
6.4 Design and Construction Tolerances
6.5 Site-Specific Factors Affecting Construction
6.6 Construction Quality Control and Quality Assurance Measures
7 Monitoring and Maintenance Objectives and Approaches
7 Monitoring and Maintenance Objectives and Approaches
7.1 Monitoring Phases
7.2 Cap Monitoring Objectives
7.3 Data Quality Considerations
7.4 Cap Performance Monitoring Framework
7.5 Cap Maintenance
8 References
Appendix A. Case Studies
Appendix B. Amendments for Chemical Isolation Layer  
Appendix C.  Chemical Isolation Layer Modeling Data Needs and Collection Methods 
Appendix D. Construction-Related Community Impacts 
Appendix E. Glossary
Appendix F. Acronyms
Acknowledgments
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Sediment Cap Chemical Isolation Guidance
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PFAS Fact Sheets

This page includes in the links for the ITRC PFAS fact sheets. The fact sheets are available as PDF files. Several tables of supporting information are published separately so that they can be updated periodically by ITRC. The fact sheet user should visit this page to access the current versions of the tables.

An Introductory document has been prepared that briefly describes the contents of each of the fact sheets.

  • Naming Conventions and Physical and Chemical Properties
  • Regulations, Guidance, and Advisories
    • Section 4 Tables Excel file – current date February 2019
      • Table 4-1 presents the available PFAS water values established by the USEPA, each pertinent state, or country (Australia, Canada and Western European countries)
      • Table 4-2 presents the available PFAS soil values established by the USEPA, each pertinent state, or country (Australia, Canada and Western European countries)
    • Section 5 Tables Excel file – current date November 2017
      • Table 5-1 summarizes the differences in the PFOA values for drinking water in the United States.
      • Table 5-2 summarizes the differences in the PFOS values for drinking water in the United States.
  • History and Use (Spanish Version)
  • Environmental Fate and Transport (to be published February 2018)
  • Site Characterization Tools, Sampling Techniques, and Laboratory Analytical Methods (to be published February 2018)
  • Remediation Technologies and Methods. (to be published February 2018)
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Permission is granted to refer to or quote from this publication with the customary acknowledgment of the source (see suggested citation and disclaimer). This web site is owned by ITRC • 1250 H Street, NW • Suite 850 • Washington, DC 20005 • (202) 266-4933 • Email: [email protected] • Terms of Service, Privacy Policy, and Usage Policy ITRC is sponsored by the Environmental Council of the States.