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July 2012

Vapor Intrusion Newsletter

In This Issue:


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EnviroGroup Limited

AEHS San Diego Conference Abstract Deadline July 13

The AEHS 23rd Annual International Conference on Soil, Water, Energy, and Air will be held March 18-21, 2013 at the Mission Valley Marriott, San Diego, CA. The abstract deadline is July 13. Information can be found at:

AEHS San Diego Conference

IDEM issues new VI Guidance in Remediation Closure Guide

The Indiana Department of Environmental Management (IDEM) issued a new Remediation Closure Guide (RCG), effective March 22, 2012. The "meat" of Indiana's VI Program is detailed in Sections 5 and 10. Information can be found at:

IDEM VI Guidance in Remediation Closure Guide

Michigan issues Draft VI Guidance for Public Comment

On May 8, 2012 Michigan DEQ released Draft Vapor Intrusion Guidance for Public Comment. Comments are due by August 1 to Matthew Williams via email at williamsm13@michigan.gov. The document is available at:

Michigan Draft VI Guidance for Public Comment

Illinois Pollution Control Board issues proposed revisions to TACO

On April 19, 2012 the Illinois Pollution Control Board issued proposed revisions to the Tiered Approach to Corrective Action Objectives (TACO) for Indoor Inhalation. The Board also proposed adding 13 chemicals to the TACO tables based upon the Board's pending rulemaking on groundwater quality standards, Proposed Amendments to Groundwater Quality Standards (35 Ill. Adm. Code 620) (Groundwater Quality), R08-18.1 Further, the first-notice amendments to TACO update physical and chemical parameters and revise toxicity values in accordance with the new United States Environmental Protection Agency (USEPA) hierarchy for selecting human health toxicity values. The proposed revisions can be found at:

Proposed revisions to Illinois TACO for Indoor Air

California DTSC releases updated Active Soil Gas Advisory

The DTSC, in conjunction with Los Angeles Regional Water Quality Control Board (LARWQCB), and San Francisco Regional Water Quality Control Board, has issued an updated Advisory which provides technically consistent approaches for collecting and analyzing soil gas samples. The 2012 revision incorporates all key elements from the LARWQCB's 1997 "Interim Guidance for Active Soil Gas Investigation". This document can be found at:

Updated DTSC Active Soil Gas Advisory

AWMA Vapor Intrusion conference in Denver

The sixth Air & Waste Management Association (A&WMA) Vapor Intrusion Conference is to be held in Denver, Colorado on October 3-4, 2012. Information is available at:

AWMA Vapor Intrusion conference in Denver

Presentations from 2012 AEHS San Diego EPA VI Workshops

Presentations from the AEHS-EPA VI Workshop in San Diego, March 2012, including: National Stakeholders Forum; Recent Advances to VI - Application and Implementation; and Petroleum Hydrocarbon Vapor Intrusion II are available at the website below:

Presentations from 2012 AEHS San Diego EPA VI Workshops

New Jersey Issues Changes to Requirements for Air Analysis

In May 2012 New Jersey issued some changes to the air analytical requirements (N.J.A.C. 7:26E-2.1(a) 7; and 2.1(c) 3; and Appendix A): * Air Analytical Method - Air samples analyses may be conducted in accordance with either the EPA TO-15 Method or the NJ-TO-15-LL Method; * Air Compound List - Air samples shall be analyzed for the compound list contained in NJ-TO-15-LL Method Table A, which includes 5 additional analytes (1,4-dioxane; ethanol; isopropanol; methyl methacrylate; tetrahydrofuran) +30TICs with alkane TICs sum totaled and reported as one TIC * Air Additional Analytes - samples collected due to petroleum hydrocarbon contamination other than all gasoline or light petroleum distillates, shall be analyzed for naphthalene and 2-methyl-naphthalene plus any site-specific contaminants Information can be found at:

New New Jersey Air Analysis Requirements

phone: 303-790-1340



This newsletter is issued periodically to provide our readers with information on new regulatory and technical developments in the rapidly changing field of vapor intrusion. While every effort is made to ensure that the information and links presented in this newsletter are accurate at the time of publication, they are presented for general information purposes only. Users should independently verify the accuracy and applicability of this information and seek professional advice for any specific sites or purposes. Articles on or links to any document or website do not imply endorsement of that document or website by EnviroGroup. Copyright EnviroGroup Limited 2012. 7009 S. Potomac Street, Centennial, CO 80112.


Please contact us if you have any questions about the topics presented in this newsletter, or vapor intrusion in general. More information about EnviroGroup Limited, including several useful links to vapor intrusion websites, is available at: http://www.envirogroup.com/vaporintrusion.php

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