The LAX Midfield Satellite Concourse North (MSC North) project has now progressed into the airfield side and D 7 Consulting has ensured our Quality Assurance Observers have completed the necessary stages to be badged for the required security access to perform duties for Client Best Contracting. The Hydro-Prufe® 80 MIL used here on the tunnels is an unreinforced PVC Thermoplastic Sheet Membrane specially compounded to remain watertight in a sub-grade environment. D 7 Consulting is also working with a team which includes Architects Corgan and Gensler on the next phase of the project under General Contractor Turner-PCL, JV in the Construction Review of all Roofing and Waterproofing components for the MSC North.