Martin State Airport Groundwater Treatment Facility

Johnston Construction Company

• Johnston Construction Company served as the Civil Subcontractor to AECOM Technical Services, Inc. for construction of the Martin State Airport Groundwater Treatment Facility. The executed purchase order identifies AECOM's prime contract with Lockheed Martin Corporation and Johnston Construction Company as AECOM's subcontractor.
• Performed JCC's contracted mechanical placement and process-piping work for the new groundwater treatment facility. AECOM's executed purchase order defines JCC's subcontracted services as providing the labor, materials and equipment required for mechanical placement and piping.
• Furnished and installed the piping, valves, fittings, pipe hangers and pressure gauges identified on the applicable process and mechanical drawings. This work established the mechanical interconnections required between the various treatment systems and vendor-furnished equipment.
• Installed vendor-furnished process equipment identified on the project's process-flow drawings, providing the field mechanical placement and connections required to integrate the equipment into the treatment process.
• Installed vendor-furnished instrumentation and control devices physically connected to the piping systems where indicated on the P&ID drawings. JCC's responsibility covered installation of these piping-connected devices rather than the separate electrical or controls-programming scope.