The LSPA presented the following compliance tip at the January Membership Meeting at Doubletree Hotel in Westborough, MA on January 11, 2018. 

"A feasibility evaluation is required to close any site at which NAPL with Micro-scale Mobility is present. 
310 CMR 40.1003(7)(a)2 states that a Permanent Solution shall not be achieved until "all NAPL with Micro-scale Mobility is removed if and to the extent feasible based upon consideration of CSM principles." 
This feasibility evaluation must be conducted in accordance with the requirements of 310 CMR 0860."

Click here to view all published compliance tips. This document is also posted in the Members Only section of the website under Technical Resources.