Environmental investigation, vapor intrusion assessment, and mitigation services for a multi-use building impacted by a former dry cleaner operation in Michigan.
The site previously housed a dry cleaner within a multi-use building, resulting in contamination from chlorinated volatile organic compounds (CVOCs) in soil and soil gas. AKT Peerless initially began work at the site in 2010 under prior ownership and was later retained by the current owner to evaluate and mitigate residual impacts. The project required careful environmental due diligence, regulatory coordination with EGLE and MSHDA, and design of a long-term vapor intrusion mitigation strategy to protect building occupants and ensure compliance with state regulations.
AKT Peerless conducted a comprehensive remedial investigation and environmental due diligence program, including Phase I ESA, Phase II ESA, Baseline Environmental Assessment (BEA), and Due Care evaluations. Our team delineated the nature and extent of CVOCs in soil, assessed soil gas contamination using interior and exterior sampling points, and conducted indoor air sampling throughout the building. Based on these results, AKT Peerless prepared a Response Activity Plan approved by EGLE, conducted pressure field extension testing, and designed and installed an active sub-slab depressurization system with a Retro Coat vapor barrier. The system is being monitored to demonstrate remedy effectiveness, and AKT Peerless will continue long-term O&M and prepare Documentation of Due Care Compliance for submittal to EGLE/MSHDA.
AKT Peerless successfully characterized the CVOC contamination, designed and implemented an effective vapor intrusion mitigation system, and established monitoring protocols to ensure long-term protection of building occupants. Coordination with EGLE and MSHDA ensures regulatory compliance, while the installed system and Documentation of Due Care provide a framework for safe ongoing use of the multi-use building.
