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Soil Gas Surveying and Vapor Intrusion Testing

EST offers over 20 years of expertise in soil gas surveying services that provide real-time evaluation of soil contamination by volatile organic compounds (VOCs) using our fleet of Geoprobe Systems ™ hydraulic direct-push probe rigs and California ELAP certified mobile laboratories.  Our ability to analyze soil gas samples on-site allows for optimum placement of subsequent probes based on current data, in turn, culminating the wasted time and expense of unnecessary sampling and analysis.
Intrusion of VOCs vapors into indoor air from underlying contaminated soil and groundwater has emerged as a primary exposure pathway of human health risk.  Vapor intrusion risk assessments are now required by many state and local agencies as condition of closure or no further action at VOC impacted sites.  Our extensive experience with soil gas sampling and chemical analysis allows us to provide rapid, high-quality data to our clients for the evaluation of vapor intrusion conditions.  EST has extensive experience in installing near-slab and sub-slab soil gas probes specifically designed for vapor intrusion testing using our Geoprobe Systems ™ direct-push equipment and limited-access probe installation equipment.
Soil gas samples are collected by our trained mobile laboratory chemists for analysis in our California state certified mobile laboratories to provide quick and accurate analytical results.  EST laboratory equipment is capable of achieving detection levels of VOCs below California Human Health Risk Screening Levels (CHHSLs) for shallow soil gas at commercial and residential sites at extremely competitive costs.  When testing is necessary, you can be sure that the proper procedures, laboratories, and quality assurance protocols will be followed and provided, and that the resulting data will be defensible.
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