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Soil vapors form when chemicals evaporate into the spaces between soil particles. A pilot study is planned to assess whether Soil vapor extraction (SVE) will be effective in cleaning up contaminant vapors at the Site. SVE removes contaminant vapors from soil below ground by applying a …
The Vapor Pin is a sub-slab sampling device designed for quick installation. While the Vapor Pin has not been extensively used in California, Cal/EPA encourages the use of innovative technologies. When using the Vapor Pin, all recommendations in DTSC’s 2011 Vapor Intrusion Guidance should be considered:
Liner Volume (contd.) Recommended injection volumes are 1-2uL or less for organic solvents, 0.5uL for water. Try user-contributed GC Pressure/Flow/Vapor Volume calculator to calculate the vapor volume for a liquid solvent in a given inlet liner, based on solvent, inlet temperature, and pressure.
Vapor Intrusion Mitigation Advisory, Revision 1 (October 2011) Provides a framework that guides the reader through the decision process for 1) determining if mitigation is appropriate for the project site, 2) selecting a mitigation system that is protective of human health, and 3) ensuring that implementation is sustainable for the duration of ...
VAPOR INTRUSION MITIGATION ADVISORY October 2011 i Revision 1 FOREWORD The California Department of Toxic Substances Control (DTSC) is issuing this Vapor Intrusion Mitigation Advisory (VIMA or Advisory) for use on sites that may be impacted by soil vapor intrusion into indoor air.
The K-list appears in the hazardous waste regulations in 22CCR Section 66261.32. The P-list and the U-list (discarded commercial chemical products): These lists include specific commercial chemical products that have not been used, but that will be (or have been) discarded.
slab sampling, evaluating risk associated with vapor intrusion to indoor air, cleanup and mitigation approaches, along with the public outreach associated with vapor intrusion investigations, mitigations and remediations, consult the following DTSC documents: Final Guidance for the Evaluation and Mitigation of Subsurface Vapor Intrusion to
Mercury Dry Cleaners (former) Pinole, Contra Costa County You may find additional information on the Cleanup Sites and Hazardous Waste Permitted Facilities in the EnviroStor database .
The goal of a vapor intrusion mitigation system is to eliminate subsurface vapor contaminant entry into the building until the subsurface contamination source is remediated or no longer poses a significant risk to human health. Remediation and mitigation are complementary components of a response action for volatile chemical contamination.