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1 Introduction
1 Introduction
1.1 Purpose of This Guidance
1.2 The Need for an Integrated Strategy for Chlorinated-Solvent Sites
1.3 Involving Indian Tribe and Public Stakeholders
1.4 Is an IDSS a Site Closure Strategy?
1.5 When to Develop a Chlorinated Solvent–Contaminated Site Strategy
1.6 Structure of the Document
2 Conceptual Framework For the Behavior of DNAPLS and Chlorinated-Solvent Plumes in the Subsurface
2 Introduction
2.1 The Concetual Site Model
2.2 Key Subsurface Transport and Reaction Processes
2.3 The Importance of Geologic Conditions
2.4 Chlorinated-Solvent Source and Plume Dynamics
2.5 Introduction to the 14-Compartment Model
2.6 Application of the 14-Compartment Model to an Example Site
3. Remediation Objectives
3 Introduction
3.1 Historical Perspective of Absolute and Functional Objectives
3.2 Developing SMART Objectives
3.3 Examples of Possible Objectives for Chlorinated-Solvent Sites
3.4 Examples of SMART Objectives for a Chlorinated Solvent–Contaminated Site
3.5 Creating SMART Functional Objectives
3.6 ITRC Indian Tribe and Public Stakeholder Perspective of SMART Functional Objectives
4 Treatment Technologies
4 Introduction
4.1 General Technologies Categories
4.2 Rationale for Coupling Technologies
4.3 Transitioning Between Technologies
4.4 Washington Square Mall Example
5 Developing a Monitoring Approach
5 Introduction
5.1 Types of Monitoring
5.2 Media to Monitor
5.3 Aligning Data to SMART Functional Objectives
5.4 Metrics
5.5 Data Evaluation
5.6 Monitoring Optimization
5.7 Developing a Monitoring Approach Example Site
6 Remedy Evaluation
6 Introduction
6.1 Evaluate Whether Objectives Are Being Met
6.2 Remedy Optimization—Can Objectives be Met with Greater Efficiency?
6.3 Remedy Evaluation
6.4 Summary
7. Additional Info
Appendix A: Case Studies
Appendix B: Developing an IDSS
Appendix C: Conceptual Site Model Checklist
Team Contacts
Glossary
References
Acronyms
Acknowledgments
Document Feedback

 

Integrated DNAPL Site Strategy
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Appendix C: Conceptual Site Model Checklist

CSM requirement Status Required action
Facility
Identify current and historical structures (e.g., buildings, drain systems, sewer systems, underground utilities)    
Identify process areas, including historical processing areas (e.g., loading/unloading, storage, manufacturing)    
Identify current and historical waste management areas and activities    
Other    
Land use and exposure
Identify specific land uses on the facility and adjacent properties    
Identify beneficial resources (e.g., groundwater classification, wetlands, natural resources)    
Identify resource use locations (e.g., water supply wells, surface water intakes)    
Identify subpopulation types and locations (e.g., schools, hospitals, day care centers)    
Identify applicable exposure scenarios (e.g., residential, industrial, recreational, farming)    
Identify applicable exposure pathways (e.g., contaminant sources, releases, migration, mechanisms, exposure media, exposure, routes, receptors)    
Other    
Physical features
Identify topographical features (e.g., hills, gradients, surface vegetation, or pavement)    
Identify surface water features (e.g., routes of drainage ditches, links to water bodies)    
Identify surface geology (e.g., soil types, soil parameters, outcrops, faulting)    
Identify subsurface geology (e.g., stratigraphy, continuity, connectivity, hydraulic conductivity)    
Identify hydrogeology (e.g., water-bearing zones, hydrologic parameters, impermeable strata, direction of groundwater flow, preferential flow paths)    
Identify existing soil boring and monitoring well logs and locations    
Other    
CSM requirement Status Required action
Release information
Identify potential sources of releases    
Identify potential COCs associated with each potential release    
Identify confirmed source locations    
Identify confirmed release locations    
Identify existing delineation of release areas    
Identify distribution and magnitude of COPCs and COCs    
Identify migration routes and mechanisms    
Identify fate and transport modeling results    
Other    
Risk management
Summarize the risks    
Identify impact of risk management activities on release and exposure characteristics    
Identify performance monitoring locations and media    
Identify contingencies in the event performance monitoring criteria are exceeded    
Other    
Cleanup
Identify study options    
Identify study requirements    
Identify cleanup options    
Identify cleanup requirements    
Other    
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Integrated DNAPL Site Strategy

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