Phase I ESA done by City of Crystal, dated 05/04/2021 and Heating Season Soil Vapor Sampling Results Report, dated 12/29/2021. Additional soil vapor, soil, and groundwater investigation - Environmental Site Investigation Report, dated 05/24/2022. Heating Season Soil Vapor Report, dated 12/29/2022, and Response Action Plan, dated 10/20/2022. Clean likely in summer 2023.