Practice Specifics
As leaders in the assessment and management of subsurface vapor intrusion to indoor air, our practitioners maintain a comprehensive list of vapor intrusion guidance, and share it below to advance the state of the vapor intrusion practice.
Vapor Intrusion Services
Vapor Intrusion Resources
Filter by State and Topic
Alabama Vapor Intrusion Guidance
Arizona Vapor Intrusion Guidance
California Vapor Intrusion Guidance
- San Diego County Instructions to Vapor Risk 2000
- San Diego County Vapor Risk Assessment
- California DTSC Active Soil Gas Investigation
- California Air Resources Board Ambient Air Concentrations
- California DTSC Guidance for the Evaluation and Mitigation of Subsurface Vapor Intrusion to Indoor Air
- Correcting JE Model for Soil Temperature
- California Human Health Screening Levels
- California Johnson & Ettinger Model
- California VI Mitigation Advisory
- California EPA Toxicity Criteria Database
- California Schoolscreen Guidance
- California Soil Screening Numbers
- California Vapor Intrusion
- San Francisco Bay RWQCB ESLs
- EPA Region 9 RSLs
Georgia Vapor Intrusion Guidance
Hawaii Vapor Intrusion Guidance
Illinois Vapor Intrusion Guidance
Indiana Vapor Intrusion Guidance
- Indiana Department of Environmental Management Vapor Intrusion
- Indiana Department of Environmental Management – Vapor Mitigation Systems Technical Guidance Document
- Indiana Department of Environmental Management – Vapor Remedy Selection and Implementation Guidance Document
- Indiana Department of Environmental Management – Vapor Intrusion Investigation Documentation
- Indiana Department of Environmental Management – Technical Guidance For Cleanups – Screening Level Tables and Remediation Program Guide
Kansas Vapor Intrusion Guidance
Louisiana Vapor Intrusion Guidance
Maine Vapor Intrusion Guidance
- Maine VI Guidance
- Links page for Remediation Program Guidance: Guidance for the Investigation and Clean-up of Hazardous Substance Sites in Maine
- Remediation Guidelines for Petroleum Contaminated Sites in Maine (Google Chrome Only)
- Maine DEP Summary Report – State of Maine Vapor Intrusion Study for Petroleum Release Sites
Massachusetts Vapor Intrusion Guidance
- October 2016 final VI guidance
- Massachusetts Guidelines for the Design, Installation, and Operation of Sub-Slab Depressurization Systems
- Massachusetts Indoor Air Sampling and Evaluation Guide
- Massachusetts An Evaluation of Vapor Intrusion Into Buildings through a Study of Field Data (1996)
- Massachusetts Typical Indoor Air Concentrations
Minnesota Vapor Intrusion Guidance
Nebraska Vapor Intrusion Guidance
New Mexico Vapor Intrusion Guidance
New York Vapor Intrusion Guidance
- NYDOH Endicott Soil Vapor Project
- NYSDOH Volatile Organics in Air of Fuel Oil Heated Homes
- NYDEC Strategy for Evaluating Vapor Intrusion at Remedial Sites
- NYSDOH Guidance for Evaluating Soil Vapor Intrusion
- NYSDOH Indoor Air Sampling and Analysis Guidance
- NYSDOH Background VOCs Data
- New York Soil Cleanup Levels
Ohio Vapor Intrusion Guidance
Rhode Island Vapor Intrusion Guidance
Vermont Vapor Intrusion Guidance
Washington Vapor Intrusion Guidance
Washington D.C. Vapor Intrusion Guidance
West Virginia Vapor Intrusion Guidance
Wisconsin Vapor Intrusion Guidance
Vapor Intrusion Topics
EPA Vapor Intrusion Links
- EPA EPI Suite for Adjusting Henry’s Constant
- EPA IRIS Toxicological Review of PCE
- Background Indoor Air Concentrations of Volatile Organic Compounds in North American Residences (1990–2005): A Compilation of Statistics for Assessing Vapor Intrusion
- EPA”s Vapor Intrusion Database: Evaluation and Characterization of Attenuation Factors for Chlorinated Volatile Organic Compounds and Residential Buildings
- Conceptual Model Scenarios for the Vapor Intrusion Pathway
- EPA Options for Developing and Evaluating Mitigation Strategies for Indoor Air Impacts (1993)
- Past VI Conferences and Workshops
- EPA Vapor Intrusion Mitigation Approaches
- EPA Version: Johnson & Ettinger Model
- EPA Johnson and Ettinger Reverse Calculation of target Media Concentrations
- EPA Johnson and Ettinger Calculator Forward Calculation of Indoor Air Concentration
- EPA Air Quality Models
- EPA Hazardous Air Pollutants
- EPA TO-15 Sampling and Analytical Method
- EPA TO-17 Sampling and Analytical Method
- Supplement to Method TO-15 — Reduction of Method Detection Limits
- EPA ORD Version of the Johnson and Ettinger Model
- Technical Guide for Assessing and Mitigating the VI Pathway from Subsurface Vapor Sources to Indoor Air
- Uncertainty of J-E Model Calculations
- EPA Brownfields Technology Primer: Vapor Intrusion Considerations for Redevelopment
- Review of VI Research
- Assessing Potential Indoor Air Impacts for Superfund Sites
- EPA Inspector General VI Report (14 Dec 2009)
Other Sources of Vapor Intrusion Guidance
- EnviroGroup Redfield site
- Indoor Air Vapor Intrusion Database Website
- Petroleum Vapour Model Comparison
- Paper on Background Indoor and Outdoor Air Concentrations
- Interstate Technology and Regulatory Council -Vapor Intrusion Issues at Brownfield Sites
- Method for Assessing Soil Vapor Intrusion From Petroleum Release Sites: Multi-Phase/Multi-Fraction Partitioning
- API VI Web Site
- Air Force Guide for the Assessment of the Vapor Intrusion Pathway (PDF download)
- ITRC Vapor Intrusion: A Practical Guide
- ITRC Vapor Intrusion: Investigative Approaches for Typical Scenarios
- Tri Services VI Handbook
- API A Practical Strategy for Assessing the Subsurface Vapor-to-Indoor Air Migration Pathway at Petroleum Hydrocarbon Sites
- DOD VI Handbook
- Atlantic Partnership in Risk – Based Corrective Action for Petroleum Impacted Sites
Vapor Intrusion – General
- EPA Vapor Intrusion Mitigation Approaches
- Massachusetts An Evaluation of Vapor Intrusion Into Buildings through a Study of Field Data (1996)
- New Jersey Vapor Intrusion Guidance Documents
- Pennsylvania VI Guidance
- Wisconsin DHFS VI Fact Sheet
- Vapor Intrusion Resources for Environmental Professionals
- Wisconsin Guidance for Documenting the Investigation of Utility Corridors
- Petroleum Hydrocarbon Vapor Intrusion Guidance Document
- Indoor Air Vapor Intrusion Database Website
- NYDEC Strategy for Evaluating Vapor Intrusion at Remedial Sites
- California DTSC Guidance for the Evaluation and Mitigation of Subsurface Vapor Intrusion to Indoor Air
- NYSDOH Guidance for Evaluating Soil Vapor Intrusion
- Alaska -Evaluation of Vapor Intrusion Pathway at Contaminated Sites
- Interstate Technology and Regulatory Council – Vapor Intrusion Issues at Brownfield Sites
- Ohio Vapor Intrusion Guidance
- Review of VI Research
- ITRC Vapor Intrusion: A Practical Guide
- ITRC Vapor Intrusion: Investigative Approaches for Typical Scenarios
- Delaware Vapor Intrusion Guidance
- Indiana Department of Environmental Management – Vapor Remedy Selection and Implementation Guidance Document
- Idaho Evaluation of Indoor Air Pathway Guidance, Appendix C
- Kansas Vapor Intrusion Guidance
- Air Force Guide for the Assessment of the Vapor Intrusion Pathway (PDF download)
- EPA Brownfields Technology Primer: Vapor Intrusion Considerations for Redevelopment
- Virginia VI Screening Fact Sheet
- Maryland Toxic Air Pollutant Regulations Assistance
- Tri Services VI Handbook
- Assessing Potential Indoor Air Impacts for Superfund Sites
- DOD VI Handbook
- Massachusetts VI Blog
- Nebraska Risk-Based Corrective Action at Petroleum Release Sites
- Washington VI Guidance
- Oregon Guidance for Assessing and Remediating Vapor Intrusion in Buildings
- Maine VI Guidance
- EPA Inspector General VI Report (14 Dec 2009)
- Montana Vapor Intrusion Guidance
Johnson and Ettinger Model
- EPA Version: Johnson & Ettinger Model
- EPA Johnson and Ettinger Reverse Calculation of target Media Concentrations
- EPA Johnson and Ettinger Calculator Forward Calculation of Indoor Air Concentration
- EPA ORD Version of the Johnson and Ettinger Model
- Petroleum Vapour Model Comparison
- Superfund JE Model Spreadsheet Error
- Correcting JE Model for Soil Temperature
- Uncertainty of J-E Model Calculations
- California Johnson & Ettinger Model
- New Jersey Johnson and Ettinger Spreadsheets
Standards & Screening Levels
- San Diego County Instructions to Vapor Risk 2000
- EPA Risk Assessment for Superfund Sites
- Connecticut Significant Environmental Hazard Threshold Concentrations
- San Diego County Vapor Risk Assessment
- Connecticut Proposed Revised Volatilization Criteria
- Washington Developing Air Cleanup Standards
- EPA Region 3 Ecological Freshwater Screening Benchmarks
- EPA Hazardous Air Pollutants
- NOAA Screening Quick Reference Tables
- EPA TCE Fact Sheet
- 314 CMR 5: Ground Water Discharge Permit Program
- California Schoolscreen Guidance
- California Human Health Screening Levels
- California Soil Screening Numbers
- Hawaii Soil Vapor and Indoor Air Sampling Guide
- Kansas RSK Manual
- Virginia VI Screening Tables
- Colorado Soil Evaluation Values
- Michigan Risk Based Screening Levels for Groundwater
- EPA Toxicological Review of TCE
- Michigan Risk Based Screening Levels for Soil
Indoor Air and Soil Vapor Sampling and Analysis
- NYSDOH Indoor Air Sampling and Analysis Guidance
- EPA TO-15 Sampling and Analytical Method
- EPA TO-17 Sampling and Analytical Method
- Supplement to Method TO-15 — Reduction of Method Detection Limits
- California DTSC Active Soil Gas Investigation
- Colorado 2016 Air Screening Concentrations Table
- Massachusetts Indoor Air Sampling and Evaluation Guide
- Michigan target Detection Limits
Indoor Air Background/Ambient Air
- California Air Resources Board Ambient Air Concentrations
- Indiana Office of Air Quality Ambient Air Concentrations
- EPA Air Quality Models
- Paper on Background Indoor and Outdoor Air Concentrations
- NYSDOH Background VOCs Data
- EPA Urban Air Toxics Monitoring Program Reports
- Massachusetts Typical Indoor Air Concentrations
- Indiana 2016 Ambient Air Monitoring Network Plan
Vapor Intrusion and Petroleum Releases
- Colorado Petroleum Hydrocarbon Vapor Intrusion Guidance
- Oregon Risk Based Decision Making for Petroleum Contaminated Sites
- Oregon Screening Model for Volatilization from Soil to Indoor Air at Heating Oil Tank Sites
- NYSDOH Volatile Organics in Air of Fuel Oil Heated Homes
- Method for Assessing Soil Vapor Intrusion From Petroleum Release Sites: Multi-Phase/Multi-Fraction Partitioning
- API VI Web Site
- Missouri Evaluation of Indoor Inhalation Pathway for Petroleum Storage Tank Sites
- South Dakota Screening Tables
- Atlantic Partnership in Risk-Based Corrective Action for Petroleum Impacted Sites
- Minnesota Petroleum Vapor Intrusion Guidance
Conferences/Seminars/Workshops
Indoor Air Quality – General
- Minnesota Department of Health, Clean Indoor Air Act
- Indoor Air Quality Basics
- Basics of Indoor Air Quality in Homes
- An Office Building Occupant”s Guide to Indoor Air Quality
- Building Air Quality – A Guide for Building Owners and Facility Managers
- EPA Indoor Air Quality Topics
- The Inside Story — A Guide to Indoor Air Quality (EPA & CPSC)
- Technical Guide for Assessing and Mitigating the VI Pathway from Subsurface Vapor Sources to Indoor Air
- Indoor Air Pollution: Introduction for Health Professionals (CPSC, AMA, EPA, ALA)
- VOC Concentrations in Office Buildings
- Building Assessment Survey and Evaluation (BASE) Survey
