BlogDecember 2, 2025

How Citadel EHS Secured Rare NFA Letters for VOC Sites in California: A Practical Path to Closure

A podcast episode featuring Matt Winefield of Winefield & Associates in conversation with Greg McIver from Citadel EHS, unpacking practical approaches for obtaining No-Further-Action (NFA) letters under stringent VOC vapor intrusion regulations.

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Michelle R. Torres

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How Citadel EHS Secured Rare NFA Letters for VOC Sites in California: A Practical Path to Closure

This article discusses a podcast episode featuring Matt Winefield, MS, MBA, PE of Winefield & Associates in conversation with Greg McIver from Citadel EHS.

The discussion unpacks one of the most challenging topics for California practitioners today: securing No-Further-Action (NFA) letters under stringent VOC vapor intrusion regulations.

The episode covers practical approaches for obtaining NFA letters at sites dealing with volatile organic compounds and vapor intrusion issues in California's regulatory environment.

The full podcast episode is available at: https://www.winefieldinc.com/podcasts/california-voc-vapor-intrusion-nfa-closures

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brownfieldsdue diligenceenvironmental consultingredevelopmentregulatory strategyremediationsite closuresubsurface investigationvapor intrusionCalifornia environmentalVOC
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