Rock Leaf conducted a Phase II investigation for the Metropolitan Council Blue Line. This project involved continuous soil and water sampling in over 100 boreholes to test for contamination. In this case, Rock Leaf tested for specific likely contaminants that stem from Phase I, which were Diesel Range Organics (DROs), Volatile Organic Compounds (VOCs), Semi-Volatile Organic Compounds (SVOCs), and metals such as lead and arsenic.