2014 MCP Regulations
MassDEP Bureau of Waste Site Cleanup is developing a "trailer package" to the 2014 MCP amendments; this package is intended to be a combination of new items that have become apparent since the previous MCP update, items held over from the previous regulatory reform discussion, and corrections to issues that have arisen under the new regulations. 
 
If you have items you'd like considered for MassDEP's trailer package, please reach out to us with an explanation of the issue and what you think needs refining. 
 
The LSPA Regulations Committee will be preparing a submittal for the LSPA Board to review and then submit to MassDEP. This document will comment on topics that MassDEP plans to present for inclusion in the trailer package as well as propose additional topics that the LSPA believes MassDEP should include. 
 
Comments should be sent to us by Wednesday, August 31.  
 
We appreciate your input.
David E. Leone, LSP, Senior Project Manager, GZA, davide.leone@gza.com
David Foss, LSP, Principal Hydrogeologist, Wilcox & Barton, dfoss@wilcoxandbarton.com
 
LSPA Regulations Committee Co-Chairs
 

By: Wesley E. Stimpson, Technical Practices Committee

The recent revisions to the MCP, most of which became effective June 20, 2014, substantially change how sites with NAPL are characterized and moved through the MCP process.  In addition to some new terminology, MassDEP has embraced the fundamental scientific principles describing the behavior of fluid flow in porous media necessary to assess NAPL in subsurface strata.  PRPs are now asked to provide multiple lines of evidence to support any endpoint conclusions, and MassDEP will be looking for more data than has historically been provided in support of closing out this type of disposal sites.  The NAPL Upper Concentration Limit of 0.5 inches no longer needs to be met, and in fact is no longer available to be used as a component for obtaining an endpoint. 

Read More

Overview of 2014 MCP 2014 Regulatory Changes: Characterizing and Closing Out NAPL Sites 

The LSPA has prepared an overview as part of a series of topic discussions and resourc  MCP 2014 Regulatory Changes es pertaining to the 2014 MCP changes; this first in the series provides a discussion of key aspects of  the investigation and closure of NAPL sites. Read more.