Vapor Intrusion Mitigation Systems in California

Reduce Liability and Increase Safety

Protect your investment with a trustworthy Vapor Intrusion Mitigation System (VIMS) designed and installed by the thorough team of experts in diverse environmental engineering properties at GeoKinetics. We create effective VIMS by diving deep with analytics first, before designing a system tailored to your site’s specific needs. Our team will not only build a top-of-the-line Vapor Intrusion Mitigation System for your site, but also provide follow-up monitoring to ensure optimal operational success.

When to Implement a Methane or Other Vapor Monitoring System

Methane and vapor testing must be considered early in the property acquisition process, whether the site is vacant or developed. California’s geology naturally produces methane, which can migrate through soil and accumulate in buildings. As a result, it’s prudent to assume that any site could be affected by elevated levels of methane or other hazardous vapors. In addition to natural sources, man-made contamination is also a concern. For example, nearby facilities such as dry cleaners are common sources of harmful chemical emissions that may impact adjacent properties.

The Impacts of Vapor Intrusion on Site Development

In California, site developers and property owners are required to conduct thorough environmental assessments, which include methane and vapor intrusion testing. These assessments are critical, as harmful vapors, such as methane or radon, can accumulate inside buildings, posing serious health and safety risks. Exposure to these vapors can lead to a range of health issues, from headaches and respiratory irritation to more severe consequences such as cancer or, in extreme cases, death. Methane also presents a combustion hazard, making proper mitigation essential for both human safety and structural integrity.

Common harmful vapors include:

Methane
Volatile Organic Compounds (VOCs)
Tetrachloroethylene (PCE)
Trichloroethylene (TCE)
Naphthalene
Radon
Other chemical contaminants

Important Factors in Vapor Mitigation

Effective VIMS involve a comprehensive, multi-step process that includes diagnosing, designing, building, and continuously monitoring the system. A crucial part of this process is drilling and soil gas sampling, which help assess subsurface conditions. Accurate data collection is supported by proper instrument installation and thorough laboratory analysis. Once mitigation measures are in place, a certificate of compliance, stamped by a licensed professional geologist, ensures that the system meets regulatory standards. In California, oversight from the Department of Toxic Substances Control (DTSC) adds an additional layer of accountability and ensures adherence to environmental safety guidelines. Installing a methane and vapor monitoring system is a critical part of the environmental engineering process. These systems complement Phase I and Phase II Environmental Site Assessments and ensure that any risks are identified and properly mitigated before development or occupancy begins.

Why Vapor Mitigation is Beneficial

Vapor intrusion mitigation systems provide continuous, real-time monitoring 24/7, which is essential for maintaining safety and regulatory compliance. Implementing such systems allows developers to build on sites that may otherwise be deemed compromised, expanding opportunities for land use. More importantly, these systems play a vital role in protecting public health and ensuring the safety of the surrounding community. By proactively addressing environmental risks, organizations can also uphold their reputation and demonstrate a commitment to responsible development and environmental stewardship.

Contact GeoKinetics to Design Your VIMS

Protect your investment by carefully assessing your site for harmful vapors and closely monitoring readings with GeoKinetics. Contact us today, and we will create a custom plan just for you.