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California Vapor Intrusion Blog

This California Vapor Intrusion (VI) Blog provides updates on CalEPA’s rule development process associated with reducing attenuation factors (AFs) for volatile organic compounds.  Winefield & Associates contends that the proposed new AF standard of 0.03 is neither scientifically sound nor necessary.  As such, the blog will provide scientific and regulatory data with the goal of developing sane VI criteria that remain protective of human health while not thwarting California development, especially as California experiences a severe housing shortage. 

Draft Vapor Intrusion Guideline Cost Comparison

3/9/2022

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Winefield & Associates, Inc. and Fulcrum Resources Environmental have answered the question: “How much will the CalEPA Draft Vapor Intrusion Guideline (DVIG) increase dry cleaner remediation costs?” The answer is $1 million dollars per site. Assuming CalEPA retains the 0.03 attenuation factor screening value, sites will require additional remediation, vapor barriers, and extensive monitoring. An incremental cost of $1 million per site will thwart many redevelopment plans and decimate dry cleaners already impacted by COVID. Moreover, the additional environmental costs are entirely unnecessary as DTSC’s study (which CalEPA won’t release) determined that a 0.0009 AF is appropriate, which would eliminate the incremental $1 million for thousands of California properties. Reference the linked spreadsheet below for more details.
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DVIG Cost Comparison
File Size: 587 kb
File Type: pdf
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  • Home
  • Investment Criteria
  • About The Founder
  • Press
    • NY Times Article
    • LABJ Article
    • Propmodo Article
    • Commercial Property Executive Article
    • Western Real Estate Business Article
    • California City News Article
    • The Sacramento Bee Article
  • Updates
  • Podcasts
  • VI Blog
  • Contact