January 2013 the New Jersey Department of Environmental Protection (NJDEP) issued the revised Vapor Intrusion Technical Guidance Manual and revised the vapor intrusion screening levels.
Click here to review the New Jersey Department of Environmental Protection Site Remediation Program Vapor Intrusion Technical Guidelines
The chemicals below, have been dropped from the list of substances for vapor screening due to the absence of inhalation toxicity information.
- 1, 3-dichlorobenzene,
- 1, 2-dichloroethene (cis),
- 1, 2-dichloroethene (total),
- 2-chlorotoluene,
- and tertiary butyl alcohol (TBA)
The screening levels for several substances (such as tetrachloroethene or PCE) are higher than the 2007 screening levels (good news for dry cleaning sites). This may result in situations in which cases currently classified as an immediate environmental concern (IEC) or vapor concern (VC) may be reclassified based on the new screening levels.
On the other hand, the new screening levels for some substances are lower than the 2007 screening levels. For example, the screening levels for ethylbenzene are significantly lower. This may result in reclassifying some cases as an IEC or VC.
Key to the changes is the time frame for assessing conditions at your site relative to the revised VI screening levels.
- For ongoing sites and sites with approved remedial action work plans (RAWPs) for groundwater, the assessment must be completed by April 16, 2013.
- For sites with restricted use remedial action outcomes (RAOs) or restricted use no further action (NFA) determinations, the assessment needs to be completed during the next biennial certification.
Roux Associates is uniquely positioned to assist you with your VI compliance needs. Our LSRPs are stakeholders on several committees with the NJDEP on guidance documents and regulations with valuable insights into the NJDEP. In addition one of our LSRP's served on the VI Screening Level Implementation Committee with the NJDEP.
To learn more about the NJDEP New Vapor Intrusion Standards contact one of Roux Associates LSRP's or click on the below link to request more information.
- Bill Silverstein
- Michael Gonshor
- Kathi Stetser
- Greg Martin
- Thomas Buggey
- Bill Gilchrist
