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A growing manufacturer looking to expand its operations purchased a vacant industrial facility in Lansing, Michigan, where chlorinated solvents were used and spilled into the subsurface. The environmental consultant was asked to address the suspected vapor intrusion concerns resulting from the former industrial operations. In working with the Michigan Department of Environment, Great Lakes & Energy (EGLE), the consultant proposed utilizing the Retro-Coat® Vapor Intrusion Coating System, in combination with passive venting, to ensure safe indoor air for the future workers. EGLE approved the vapor mitigation approach to address the potential indoor air concerns. The Retro-Coat installation was sequentially phased in accordance to the construction schedule, where the Certified Applicator worked closely with the general contractor and the consultant to meet project expectations and deadlines. Since the Retro-Coat system will act as the wearing surface at this facility, the Retro-Coat Top WB topcoat was also applied to maintain the desired aesthetic of the building owner. Following the Retro-Coat and passive venting system’s successful application, the potential exposure pathway has been mitigated, and the site is eligible for restricted site closure designation by EGLE.