MassDEP leadership has recently shared that they expect the next set of Amendments to the Massachusetts Contingency Plan (MCP), proposed in 2019, to be promulgated soon. In an effort to refresh our collective memories, the LSPA Regulations Committee has prepared this brief, high-level summary of eight key aspects of the proposed MCP regulations. The summary provided below is based on the draft revisions provided in 2019. The LSPA has not seen a more recent draft. The actual contents of the forthcoming MCP revisions are not known.
Hot Spot and MGP Waste Definitions
The 2019 proposed amendments include the addition of Manufactured Gas Plant (MGP) Waste as a defined term. Additionally, the amendments propose modifying the definition of a hot spot to include areas of waste disposal including MGP waste. These proposed changes effectively create a new class of oil and hazardous material (OHM), with concomitant requirements for sampling and risk assessment.