Evaluation of vapor intrusion in buildings located on a former contaminated site in New Jersey -A field study

Haydar Erdogan, Hsin Neng Hsieh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Vapor intrusion has been recognized since the 1990s as a potential pathway of concern in contaminated sites. Vapor intrusion is the migration of volatile contaminants from the subsurface into overlying structures. Due to the presence of groundwater contamination under an old industrial site located in New Jersey, a vapor intrusion (VI) investigation was conducted at commercial and residential buildings located on and around the site to determine whether any of the volatile organic compounds have migrated to off-site into the nearby buildings. Sub-slab soil gas and indoor air samples were collected and analyzed for volatile organic compounds using the USEPA Method TO-15. The analytical data were compared against background ambient air data and New Jersey Department of Environmental Protection (NJDEP) soil gas and indoor air screening levels. The results of the study revealed that chlorinated volatile organic compound including trichloroethene (TCE), tetrachloroethene (PCE) and chloroform have migrated to the buildings adjacent to the site. Concentrations of TCE, PCE, and chloroform detected in these buildings have exceeded the NJDEP VI screening levels. An active subsurface depressurization (SSD) system was installed under the sub-slab of the impacted buildings to remediate VI intrusion. The post-mitigation sampling was conducted to determine whether the SSD system was working as intended. The results of post-mitigation sampling have confirmed that the SDS systems were working and very effective at reducing indoor air exposures at the impacted buildings. Based on the results of the study, the VI investigation was expanded to include other buildings adjacent to the site and use an appropriate technology to mitigate vapor intrusion at the affected buildings.

Original languageEnglish (US)
Title of host publicationA and WMA Specialty Conference on Vapor Intrusion, Remediation, and Site Closure 2014 - The Drive to Site Closure
Subtitle of host publicationCritical Sustainability Concerns and Key Technical Issues
PublisherAir and Waste Management Association
Pages390-401
Number of pages12
ISBN (Electronic)9781510806535
StatePublished - Jan 1 2014
EventA and WMA Specialty Conference on Vapor Intrusion, Remediation, and Site Closure 2014 - The Drive to Site Closure: Critical Sustainability Concerns and Key Technical Issues - Philadelphia, United States
Duration: Sep 10 2014Sep 11 2014

Publication series

NameA and WMA Specialty Conference on Vapor Intrusion, Remediation, and Site Closure 2014 - The Drive to Site Closure: Critical Sustainability Concerns and Key Technical Issues

Other

OtherA and WMA Specialty Conference on Vapor Intrusion, Remediation, and Site Closure 2014 - The Drive to Site Closure: Critical Sustainability Concerns and Key Technical Issues
CountryUnited States
CityPhiladelphia
Period9/10/149/11/14

All Science Journal Classification (ASJC) codes

  • Filtration and Separation
  • Waste Management and Disposal
  • Fluid Flow and Transfer Processes
  • Process Chemistry and Technology
  • Environmental Engineering

Keywords

  • CVOC
  • Indoor air
  • PCE
  • Soil gas
  • TCE
  • Vapor intrusion

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