In October 2020, the Remediation and Redevelopment (RR) Program created a Vapor Mitigation System Inspection Log, Form 4400-321. The new form explains the functionality of the vapor mitigation system components and allows installers to include site-specific photos of the system components (e.g., drop points, fans). The form is also designed to assist property owners as they take over responsibility for system inspections after case closure, helping to ensure the long-term care and maintenance of the system.
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