In Episode #30 The Duplicate, Gunnar famously declared that duplicate soil samples in heterogeneous fill are useless. Risk assessor Belle Casement of Terravale Consulting heard the episode… and decided Gunnar needed correcting. 😲

In this nerd-out episode, they discuss QA/QC, dodgy duplicates, lab uncertainty, conservative risk assessments, and whether the typical QC sections in contaminated land reports are actually science or just expensive pseudo scientific fluff we do to please regulators. 

Gunnar briefly ponders writing his own version of the ASC NEPM and re-introduces the term Quality Theatre in hope of getting it officially introduced into the Miriam Webster next year. 

They also get into lead, vapours, CRM samples, rinsates, trip blanks and upper confidence limits, with a completely unnecessary but somehow relevant detour into Henry VIII and Scientology. Nobody backs down, several sacred cows get kicked over, while Hammond tries hard to keep the two fighters apart and sometimes even dares to enter the ring himself. 

BTS Episode #30: The Duplicate - the OG duplicate episode

BTS Episode #11: he Sampling Evolution - Ross McFarland

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The necessary disclaimer: The views, thoughts, and opinions expressed in this Podcast are the speakers’ own. They do not necessarily represent the views, thoughts, and opinions of 4Pillars Environmental Consulting Pty Ltd or any Client, Supplier or other party related to 4Pillars or the speakers. 

(c) Gunnar Haid and James Hammond