There have been any number of recent news stories about PCBs being discovered in buildings, particularly public schools. Setting aside the issue of whether PCBs in schools pose an actual hazard, school officials are under intense pressure to eliminate PCBs from schools once they are discovered. But the cost of eliminating PCBs from schools is typically very high, and even in the case of carefully planned actions, cleanup budgets can increase dramatically once projects begin.
One of the expensive parts of PCB removal operations is disposing of contaminated building materials like brick and concrete. These building materials are massive and can cost many hundreds to thousands of dollars per ton to dispose of. There is currently no disposal facility in New England authorized to receive this waste. That means on top of high disposal costs, there are also high shipping costs to transport the PCB contaminated materials to remote disposal facilities. With extended transportation come ancillary costs like greenhouse gas emissions and the risk of transportation accidents.
The USEPA recently proposed to reclassify certain PCB contaminated building materials to make removing them from buildings less expensive. The rule change would allow a broader range of disposal facilities to accept PCB contaminated building materials like those found in schools. If this change is adopted, then state governments would be able to permit landfills to accept “PCB bulk product waste”, the legal name for these PCB containing building materials. Reducing federal involvement in this process would likely reduce costs and shorten the time it takes to review and approve individual cleanup projects. Unfortunately, New England also lacks a disposal facility that can accept PCB bulk product waste.
For the past 30 year, Massachusetts has sought to eliminate the land disposal of PCBs and other hazardous materials, but the time to rethink that position may now be here. The disposal of hazardous materials has been discouraged largely because of concerns about groundwater contamination. This is clearly a legitimate concern, but it is important to consider that the overall quality of landfill management has improved a great deal in the past 30 years and the risk of groundwater contamination from these operations has been substantially reduced. What’s more, the physical and chemical nature of PCB bulk product waste makes the possibility of groundwater contamination much less likely than for other types of wastes.
PCBs are considered to be virtually insoluble in water, so it is rare that they are a cause of groundwater contamination. Also, PCBs tend to bind tightly to building materials like brick and concrete so the potential for them to leach out of these materials is quite low. Another consideration is that most landfills already contain what we now consider to be PCB bulk product waste because in the past this material was simply considered normal construction debris that could be sent to almost any landfill.
The potentials savings to the Commonwealth’s school systems could be enormous if there were an in-state PCB bulk product disposal facility. In these days of downsized school budgets, reduced teaching staff and limited educational materials, any savings from reducing the costs of PCB removals would be a real blessing for local communities. The Commonwealth should actively support either the establishment of a PCB bulk product waste landfill or the modification of existing landfill permits to allow the disposal of PCB bulk product waste.