itrc_logo

LNAPL Update

Home
About ITRC
Navigating this Website
1 Introduction
2 LNAPL Regulatory Context, Challenges, and Outreach
2 LNAPL Regulatory Context, Challenges, and Outreach Overview
2.1 Regulatory Challenges
2.2 Weather Vulnerabilities
2.3 Stakeholder Concerns, Community Outreach and Engagement
2.4 Streamlining the Corrective Action Process by Increased Communication
3 Key LNAPL Concepts
3 Key LNAPL Concepts Overview
3.1 Common Misconceptions
3.2 Life Cycle and Anatomy of an LNAPL Body
3.3 Overview of Natural Source Zone Depletion
3.4 LNAPL Thickness in Wells
3.5 States of LNAPL Saturation
3.6 LNAPL Recoverability and Transmissivity
3.7 Relation of LNAPL Saturation and Composition to Technology Selection
4 LNAPL Conceptual Site Model (LCSM)
4 LNAPL Conceptual Site Model (LCSM) Overview
4.1 How Much Data is Enough?
4.2 Initial LCSM
4.3 LNAPL Tools
4.4 Remedy Selection LCSM
5 LNAPL Concerns, Remedial Goals, Objectives, and Technology Groups
5 LNAPL Concerns, Remedial Goals, Remediation Objectives, and Remedial Technology Groups Overview
5.1 Identifying LNAPL Concerns
5.2 Establishing LNAPL Remedial Goals
5.3 Determining LNAPL Remediation Objectives
5.4 LNAPL Remedial Technology Groups
5.5 Establishing Remedial Performance Metrics and Remediation Endpoints
5.6 Integration of the LCSM and LNAPL Remedial Technology Selection
6 LNAPL Remedial Technology Selection
6 LNAPL Remedial Technology Selection Overview
6.1 Process Overview
6.2 Preliminary Technology Screening
6.3 Technology Evaluation
6.4 Technology Selection, Implementation, and Evaluation
Additional Information
Appendix A – LNAPL Technologies Appendix
Appendix B – Natural Source Zone Depletion (NSZD) Appendix
Executive Summary
1.0 Introduction
2.0 NSZD Processes and Theory
3.0 Incorporating NSZD into the LNAPL Site Management Process
4.0 Methods of NSZD Rate Quantification
5.0 Considerations in Long-term LNAPL site Management
Appendix C – Transmissivity (Tn) Appendix
1. Introduction
2.0 Field Methods to Measure Tn
3.0 Data evaluation and estimation of Tn – How do you estimate Tn?
4.0 Case Studies
Appendix D – Fractured Rock Appendix
1.0 Introduction
2.0 Fractured Rock Concepts and Technical Background
3.0 LNAPL Conceptual Site Model
4.0 Remedial Technologies
Appendix E – LNAPL Sheens Appendix
1.0 Introduction–What Are LNAPL Sheens?
2.0 What are Some Important Regulatory Requirements Concerning Sheens?
3.0 What Are the Common Sheen Forming Scenarios and Processes?
4.0 What Are Methods to Identify Petroleum Derived Sheens?
5.0 What Tools are Available to Assess Flux from Seeps?
6.0 Potential Sheen Mitigation Technologies
Acronyms
Glossary
Acknowledgments
Team Contacts
References
Document Feedback

 

LNAPL Update
HOME

Search Results



LNAPL Update
web document
glossaryLNAPL Update Glossary
referencesLNAPL Update References
acronymsLNAPL Update Acronyms

ITRC
Contact Us
About ITRC
Visit ITRC
social media iconsClick here to visit ITRC on FacebookClick here to visit ITRC on TwitterClick here to visit ITRC on LinkedInITRC on Social Media
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.