Vapor Intrusion Assessments

Resolving Vapor Intrusion Quickly and Efficiently

Vapor intrusion can be a significant issue where releases of volatile compounds from on- or off-site migrate beneath schools, homes, daycares, offices, and other buildings. Immediate actions are sometimes needed to investigate whether vapors are present, and, if so, to reduce the risk from inhalation of contaminants. GeoInsight has extensive experience investigating these potential situations and designing effective vapor mitigation systems to eliminate this potential exposure pathway.

Our experience with vapor intrusion assessment allows us to help you understand the potential for exposure, navigate regulations, determine whether mitigation is necessary and what type is best for your property, and communicate with your employees, tenants or members of the public, if necessary.

Indoor Air

We work with our clients to select the right analyses and sampling techniques to generate data that you can rely on to make informed decisions about the potential for indoor air impacts from vapor intrusion. We collect air samples to analyze for a wide range of contaminants, including petroleum fuels, dry cleaning solvents, and PCBs.

Soil Gas Survey

For projects where chemical use is on-going within the building, testing of soil gas beneath the building is a better approach to identify the potential for migration of subgrade vapors from contaminated soil and/or groundwater into indoor air. We have decades of experience installing soil gas probes and working in and around the logistical challenges that come with operating businesses. We will develop a sampling plan that allows you to keep your business running while we collect our data.

Risk Mitigation

GeoInsight has designed and installed barriers that block vapors from entering buildings and minimize the risk of migration of contaminants in indoor air. We have also designed and installed sub-slab depressurization systems (SSDS) to capture vapors migrating from contaminated soil and groundwater before they enter buildings. We are familiar with heating and air conditioning (HVAC) systems and can often work with existing systems to mitigate the potential for vapor migration into buildings.

Remote Monitoring

We install remote monitoring at some venting systems to send alarms if the system goes down. We understand that you need to have confidence in the system installed as part of your project so that you can focus on your business and your clients.