Industrial Vapor Intrusion
Successes

Industrial Vapor Intrusion

(San Diego, California) The Department of Defense manages hundreds of buildings that reside over volatile contaminant groundwater plumes. At one very large (172,000 sq. ft.) facility located in San Diego, the client was struggling with understanding why after spending years of investigation and mitigation, they still had a TCE vapor intrusion issue. VaporSafe® was deployed…

Optimized School Mitigation
Successes

Optimized School Mitigation

A school overlying a documented VOC release was undergoing construction that included breaking the concrete and the potential for building occupant exposures. VaporSafe™ was used to automatically track concentration distributions before, during and after construction, and to immediately send out alerts when risk thresholds were exceeded to ensure that personnel and students were not exposed. …

Mystery Solved
Successes

Mystery Solved

At a site where a sub-slab depressurization (SSD) system had been in operation, yet indoor concentrations still exhibited periodic TCE risk exceedances using current assessment methods, a continuous monitoring platform was deployed. Within one day of VaporSafe™ operation, the project personnel determined that concentrations varied widely throughout the day. A few weeks into the monitoring…

$2M Gained on Sale
Successes

$2M Gained on Sale

(Los Angeles, CA) An owner of an industrial building was trying to sell his property, but because a prospective buyer had learned of a potential vapor intrusion, he was offering the owner $2M less than the asking price. The tenant was a furniture manufacturer. After one day of VaporSafe™ continuous monitoring, indoor spatial and temporal…

Locate Vapor Entry Point
Successes

Locate Vapor Entry Point

(Mid-Atlantic US) After years of evaluation with traditional methods at a very large industrial facility, TCE entry point locations remained elusive. Within a few hours after VaporSafe™ continuous monitoring began, spatial and temporal patterns revealed that highest concentrations were in the basement where two sumps were located. The consultant covered the sumps with visqueen and…

Rapid Site Closure
Successes

Rapid Site Closure

(Southern California) With only two days of VaporSafe™ testing for both chemistry and pressure, it was demonstrated that indoor concentrations were safe during working hours as well as when upward advective flow conditions prevailed, resulting in no further action. Regulators reviewed the information and concluded that no further action was required.  Lesson: Continuous vapor concentration…