National Grid’s contractor (Entact Environmental Services) completed the assembly of the temporary enclosure in the vicinity of IRM Excavation Areas B & C (refer to the August 2008 Hempstead Fact Sheet for the location of Areas B & C).

A vapor management system (VMS) was also attached to the enclosure.

Excavation of contaminated soil adjacent to the eastern property line of the former MGP site was completed. A geotextile fabric was installed at the bottom of the excavation and clean imported fill was placed up to the original ground level. Community air monitoring was conducted during the excavation and backfill activities to determine if corrective actions were needed and to ensure that airborne contaminant levels were not produced above regulatory standards.