Vapor Intrusion: Federal Regulatory Guidance

AGENCY	GUIDANCE DOCUMENTATION & RESOURCES
US EPA VI Program

Vapor Intrusion: State Regulatory Guidance

AGENCY	GUIDANCE DOCUMENTATION & RESOURCES
Alabama VI Program	DEM VI Guidance  Guidance Page ARBCA Guidance Manual 2017 Former ARBCA Guidance Manual 2008
Alaska VI Program	DEC Vapor Intrusion Website Guidance and Forms Vapor Intrusion Guidance PDF Information About Exposure to TCE US EPA Region TCE Memo Vapor Intrusion Fact Sheet Sampling Assessment of Vapor Intrusion Vapor Intrusion Pathway Guideline
Arizona VI Program	Arizona’s DEQ Soil Vapor Guidance Substantive Policy Pages Site Investigation Guidance Manual PDF Soil Vapor Sampling Guidance PDF DTSC Vapor Intrusion Website DTSC Vapor Intrusion Guidance DTSC Human Health Risk (HERO) DTSC Vapor Mitigation Advisory Guidance OEHHA Soil and Soil Gas Screening Levels DTSC Soil Gas Investigation Guidance Waterboard Screening Levels Waterboard Vapor Intrusion Assessment TCE VI Public Participation Advisory PDF HHRA and VI Risk Assessment Tool Page
Arkansas VI Program	ADEQ’s Hazardous Waste Division
California VI Program	Vapor Intrusion Page Site Redevelopment with Vapor Intrusion Threats Site Cleanup Program Page Environmental Screening Levels (ESL) Environmental Screening Levels User Guide Environmental Screening Levels Summary Tables TCE Vapor Intrusion Framework HHRA Update 2019 California Schoolscreen Guidance California EPA Toxicity Criteria Database California Johnson & Ettinger Model San Diego County Vapor Risk Assessment San Diego County Instructions to Vapor Risk 2000 California DTSC Active Soil Gas Investigation California Air Resources Board Ambient Air Concentrations Correcting JE Model for Soil Temperature
Colorado VI Program	Vapor Intrusion Guidance Document 2016 Air Screening Concentration Table Guidance Page Indoor Air Guidance Dry Cleaner Guidance Screening Value Page Vapor Intrusion Guidance PDF Petroleum Program Guidance Recommendations for Vapor Intrusion Petroleum Hydrocarbon Vapor Intrusion Guidance Document Colorado Soil Evaluation Values
Connecticut	DEEP TCE Indoor Air and Vapor Intrusion Guidance DPH Document on Vapor Intrusion of VOCs Remediation Standard Regulation Presentation Remediation Standard Regulation PDF Remediation Guidance Documents Site Characterization Guidance Document Significant Environmental Hazard Program Page Guidance Related to TCE in Indoor Air Toxicology and Risk Assessment Page TCE in the Workplace Fact Sheet Vapor Intrusion Technical Brief
Delaware	DNREC Vapor Intrusion Guidance Policy, Guidance and SOP Page Screening Level Table Risk Assessment Guidance Active Soil Gas SOP Sub-Slab Air SOP
District of Columbia VI Program
Florida VI Program	FDEP Vapor Intrusion Guidance Remediation Guidance Procedures & Guidance Documents Petroleum Restoration Program Indoor Vapor Intrusion Waste Clean Up Program
Georgia VI Program	EPD Vapor Intrusion Guidance Hazardous Site Response Act Guidance Risk Reduction Standards Georgia Rules on Hazardous Site Response and Risk Reduction Standards
Hawaii VI Program	DOH Vapor Intrusion Guidance Technical Guidance Manual Vapor Intrusion Guidance Hawaii Soil Vapor and Indoor Air Sampling Guide Hawaii Evaluation of Environmental Hazards Action Level Tables
Idaho VI Program	Petroleum Risk Evaluation Risk Evaluation Manual Initial Default Target Levels REM for Petroleum Releases
Illinois VI Program	Vapor Intrusion Guidance Page Vapor Intrusion Fact Sheet Indoor Air Quality and Healthy Homes Procedural and Environmental Rules Overview of Indoor Inhalation Amendments TACO Presentation Page TACO and Vapor Intrusion TACO Fact Sheets TACO Resources TACO Objectives
Indiana VI Program	Vapor Intrusion Guidance PDF Technical Guidance for Cleanups Risk Evaluation Guidance Site Characterization and Sampling Guidance Remediation Closure Guide Vapor Remedy Selection and Implementation Vapor Mitigation Systems Vapor Intrusion Investigation IDEM Screening and Closure Level Tables Screening Level Tables Attenuation Factors Vapor Intrusion and TCE in the State of Indiana Johnson & Ettinger Model Indiana Office of Air Quality Ambient Air Concentrations Indiana 2016 Ambient Air Monitoring Network Plan
Iowa VI Program	LUST Assessment Guidance Tier 1 LUST Assessment Guidance Tier 2 LUST Site Assessment Underground Storage Tanks Rules for Remedial Action
Kansas VI Program	KDHE Vapor Intrusion Website Vapor Intrusion Guidance PDF RSK Presentation Page RSK Manual PDF
Kentucky VI Program	Vapor Intrusion Vapor Intrusion Assessment Vapor Intrusion Building Assessment Vapor Intrusion Assessment Checklist Vapor Intrusion Building Assessment Checklist Release Response and Initial Abatement Requirements DWM Annual Report 2011 Division of Waste Management
Louisiana VI Program	Risk Evaluation/Corrective Action Program(RECAP) RECAP PDF RECAP 2019 RECAP Frequently Asked Questions RECAP Frequently Requested Files Soil Gas Sampling Recommended Approach for VI Evaluation Using Soil Gas Sampling
Maine VI Program	R&WM Vapor Intrusion Guidance Vapor Intrusion Evaluation Guide Remediation Program Guidance Guidance for the Investigation and Clean-up of Hazardous Substance Sites Maine Remedial Action Guidelines (RAGs) Maine RAG Tables Screening Level Tables Vapor Intrusion Study of Petroleum Sites Petroleum Compounds in Indoor Air Remediation Guidelines for Petroleum Contaminated Sites Indoor Air Sampling Field Sheet
Maryland VI Program	MDE Vapor Intrusion Guidance Technical Guidance for Vapor Intrusion Citizen’s Guide to Vapor Intrusion Toxic Air Pollutant Regulations Land Restoration Program News and Resources Land Restoration Program Fact Sheets Voluntary Clean Up Program Voluntary Clean Up Program Phase II Voluntary Clean Up Program Response Action Plans
Massachusetts VI Program	Vapor Intrusion Guidance Evaluation of Vapor Intrusion Into Buildings Trichloroethylene Toxicity Information Mass DEP TCE Vapor Intrusion Evaluation at Closed Sites Indoor Air Report Typical Indoor Air Concentrations Indoor Air Sampling and Evaluation Guide Vapor Intrusion and Indoor Air Contamination from Waste Sites Indoor Air Guidance Project Site Cleanup Regulations, Policies, and Forms Site Clean Up Fact Sheet Waste Site Clean Up Laws and Regulations Site Clean Up and Facility Assessment US EPA Recommendations Regarding Remediation Massachusetts Contingency Plan Massachusetts Contingency Plan Numerical Standards Guidelines for Sub-slab Depressurization Systems Ground Water Discharge Permit Program Chemical Research and Standards
Michigan VI Program	MDEQ Vapor Intrusion Website MDEQ Indoor Air Guidance Page Vapor Intrusion Pathway Guidance Vapor Intrusion Pamphlet Indoor Air Interim Action Screening Levels Recommendations for Interim Action Screening Levels Michigan Target Detection Limits Michigan Risk Based Screening Levels for Groundwater Michigan Risk Based Screening Levels for Soil Clean Up Criteria and Screening Levels Development and Application
Minnesota VI Program	PCA Vapor Intrusion Website Vapor Intrusion Common Questions Vapor Intrusion Health Fact Sheet Vapor Intrusion Pathway Reference Documents Vapor Intrusion Screening Values What Is Vapor Intrusion? Background Information on Intrusion Screening Values Vapor Intrusion Management Practices Management Practices for Vapor Investigation Vapor Intrusion Mitigation Vapor Intrusion Technical Support Risk Based Guidance for Vapor Intrusion Pathway Vapor Intrusion Guidance from Petroleum Remediation Program Petroleum Remediation Program Page Topics Related to Hazardous Substances Minnesota Clean Indoor Air Act (MCIAA) Health Risk Values for Air TCE and Your Health TCE in Air PCE and Your Health Air Guidance Value Tables TCE Air Guidance Value Tables Risk Based Site Evaluation Guidance Clean Up Guidance MDH Risk Assessment Guidance General Mills: General Information and Background
Mississippi VI Program	Vapor Intrusion Guidance Indoor Air Quality Mold and Other Common Indoor Air Pollutants Brownfield Groundwater Assessment and Remediation Brownfield Technical Resources Risk Evaluation Procedures for Clean Up and Redevelopment of Brownfield Sites
Missouri VI Program	Vapor Intrusion Guidance Vapor Intrusion Fact Sheets Vapor Intrusion and Evaluation of the Indoor Inhalation Pathways Citizen’s Guide to Vapor Intrusion Mitigation Reports, Fact Sheets and Consultations Environmental Factors Missouri Risk-Based Corrective Action (MRBCA) Missouri Risk-Based Corrective Action (MRBCA) Guidance PDF MRBCA Process for Petroleum Storage Tanks MRBCA Process for Petroleum Storage Tanks PDF MRBCA Soil Gas Sampling Protocol Measurement of Soil Vapor Levels Risk Based Target Levels
Montana VI Program	MDEQ Vapor Intrusion Website Montana Vapor Intrusion Guide PDF Vapor Intrusion Frequently Asked Questions Soil Vapor Intrusion Frequently Asked Questions Typical Indoor Air Concentrations Air-Phase Petroleum Hydrocarbon Vapor Intrusion Calculator State Superfund Resources
Nebraska VI Program	Nebraska Voluntary Clean Up Program Risk Based Corrective Action (RBCA) At Petroleum Site RBCA At Petroleum Release Sites Assessments and Reports
Nevada VI Program	DEP Vapor Intrusion Guidance Site Cleanup Guidance PCE Releases
New Hampshire VI Program	NHDES Vapor Intrusion Guidance Vapor Intrusion Fact Sheet Contaminated Sites Guidance Documents
New Jersey VI Program	DEP Vapor Intrusion Website Vapor Intrusion Technical Guidance Vapor Intrusion Guidance Update Vapor Intrusion Screening Levels Screening Levels Update Vapor Intrusion Seminar Slides TCE Health Risks and Fact Sheet Hazardous Waste Sites Background Levels of Volatile Organic Chemicals In Home Requirement for Air Analyses New Jersey Johnson and Ettinger Spreadsheets
New Mexico VI Program	Hazardous Waste Bureau Hazardous Waste Guidance Risk Assessment Guidance for Site Investigations and Remediation
New York VI Program	DOH Vapor Intrusion Website Vapor Intrusion Guidance Vapor Intrusion PDF Vapor Intrusion Fact Sheets Vapor Intrusion Policy PDF Soil Vapor/Indoor Air Matrix Soil Vapor Intrusion Updates Guidance for Evaluating Soil Vapor Intrusion Endicott Soil Vapor Project Volatile Organics in Air of Fuel Oil Heated Homes Background Volatile Organic Chemicals in Air Remediation Guidance and Policy New York Soil Clean Up Guidance TCE Fact Sheet TCE in Indoor and Outdoor Air Fact Sheet: PERC in Indoor and Outdoor Air Fact Sheet: PERC in Indoor and Outdoor Air 2
North Carolina VI Program	Vapor Intrusion Guidance Vapor Intrusion Guidance PDF Vapor Intrusion Evaluation Guidance Screening Levels Guidance Residential Vapor Intrusion Screening Levels Non-Residential Vapor Intrusion Screening Levels Waste Management Program Guidance Inactive Hazardous Sites Guidance
North Dakota VI Program	Division of Air Quality Division of Waste Management
Ohio VI Program	Ohio’s EPA Vapor Intrusion Guidance Vapor Intrusion Guidance Vapor Intrusion Specific Updates Additional Vapor Intrusion Resources Field Standard Operating Procedures for Vapor Intrusion Response Action Levels for Volatile Organic Chemicals TCE Action Levels
Oklahoma VI Program	ORBCA Guidance OCC Guidance Page Vapor Intrusion Fact Sheets Waste Management Voluntary Clean Up Program Clean Up and Redevelopment
Oregon VI Program	Oregon’s DEQ Vapor Intrusion Guidance Vapor Intrusion Policy and Guidance Risk-Based Guidance Risk Based Concentrations for Individual Chemicals Risk-Based Concentrations for Individual Chemicals Spreadsheet Hot Spot Concentrations TCE Toxicity Values Screening Model for Volatilization from Soil to Indoor Air
Pennsylvania VI Program	Vapor Intrusion Guidance Vapor Intrusion Frequently Asked Questions Vapor Intrusion Guidance Training Guidance and Technical Tools Page Land Recycling Program Land Recycling Program Technical Guidance DEP eLibrary
Rhode Island VI Program	Vapor Intrusion Fact Sheets Evaluating Vapor Intrusion at Proposed School Sites Rhode Island Regulations Remediation Regulations Office of Waste Management
South Carolina VI Program	Risk Based Corrective Action for Petroleum Releases Hazardous Waste
South Dakota VI Program	Petroleum Assessment and Cleanup Handbook South Dakota DENR Look Up Tables
Tennessee VI Program	DOH Vapor Intrusion Website Vapor Intrusion Laws, Rules and Guidance Underground Storage Tanks Forms and Guidance Division of Remediation
Texas VI Program	Vapor Intrusion Considerations Vapor Intrusion Regulation in Texas Texas Risk Reduction Program (TRRP) Texas Risk Reduction Program Guidance and Forms TRRP Protective Concentration Levels Tier 1 PCL Tables
Utah VI Program	Corrective Action Process for Leaking Underground Storage Tanks Evaluating the Petroleum Vapor Intrusion Pathway
Vermont VI Program	DEC Vapor Intrusion Presentation Vapor Intrusion Background Rules, Guidance, Documents and Procedures Contaminated Properties Rule Investigation and Remediation of Contaminated Properties
Virginia VI Program	Virginia’s DEQ Vapor Intrusion Screening Fact Sheet Vapor Intrusion Master Table Voluntary Remediation Program Voluntary Remediation Program Risk Assessment Page Virginia Unified Risk Assessment Model (VURAM) Virginia Unified Risk Assessment Model (VURAM) Change Log RCRA Corrective Risk Assessment
Washington VI Program	Vapor Intrusion Guidance Vapor Intrusion Frequently Asked Questions Vapor Work Group Vapor Intrusion Guidance Table B-1 Vapor Intrusion Screening Levels Vapor Intrusion 2019 Changes to Screening Levels and Clean Up Evaluating Soil Vapor Petroleum Vapor Intrusion (PVI) Petroleum Vapor Intrusion Updated Screening Levels and Assessing PVI Threats Toxic Clean Up Program Toxic Clean Up Program Listening Session Overview Guidance for Evaluating Soil Vapor Intrusion Washington State Department of Health Vapor Intrusion Page Washington Developing Air Clean Up Standards
West Virginia VI Program	Voluntary Remediation Program Voluntary Remediation and Redevelopment Act (VRRA) VRRA Appendix Tables Technical Guidance and Templates Risk Assessment of Petroleum Releases
Wisconsin VI Program	Vapor Intrusion Guidance Page Vapor Intrusion PDF Vapor Intrusion and Indoor Air Vapor Intrusion Facts Sheets Vapor Intrusion Fact Sheet for Property Owners Vapor Intrusion Resources for Environmental Professionals Guidance for Documenting the Investigation of Utility Corridors Sub-slab Vapor Sampling Procedures Screening Levels Tables History of Changes
Wyoming VI Program	Voluntary Remediation Program Voluntary Remediation Program Fact Sheets Voluntary Remediation Program Fact Sheets Page 25