About this document
This report discusses a growing body of research showing that NSZD is ubiquitous at
LNAPL sites. NSZD processes occur at all LNAPL sites to some degree and
understanding, quantifying and evaluating their effectiveness is therefore an important
part of a sustainable remedial strategy (CL:AIRE 2019). Accordingly, the potential
significance of NSZD at Australian sites has implications with respect to the
development of LNAPL conceptual site models (LCSMs) and remedial/management
strategies.