POST CLOSURE MANAGEMENT OF A HAZARDOUS WASTE LANDFILL AT THE MASSACHUSETTS MILITARY RESERVATION MAIN BASE LANDFILL

This thesis details the development of a post-closure management plan for a hazardous waste landfill. The cover system designed by Elias (1996) for the 1951 cell at the Massachusetts Military Reservation (MMR) located on Cape Cod, Massachusetts was used as the basis for the plan. The proposed plan satisfies the requirements for the closure/post-closure management of landfills stipulated by the state of Massachusetts. The purpose of the plan is to ensure that the cell will not contribute any further contamination to the aquifer, and to assess the cap and geomembrane performance. The management plan specifies a monitoring program for ground and surface water as well as air quality. Three monitoring wells, along with several pre-existing wells, will be used to determine if the landfill cell is contributing contamination to the underlying aquifer. To satisfy regulations, one additional gas probe is also specified in the vicinity of the cell to monitor air quality. In addition, the plan details a maintenance program, which outlines an inspection schedule, instructions as to which parameters have to be monitored and corrective actions that might be undertaken if problems are encountered