Back to Below the Surface
Below the Surface

#30 The Duplicate

May 23, 2025 · 79 min · Ep 30

Gunnar claims almost all duplicates we take serve close to no purpose. If you want to know why, have a listen and be entertained and informed at the same time. 

The OGs are back together in this episode, and quite an unusual one it is. This times it is James who goes on a few rants, quite to Gunnar's amusement. Of course, Gunnar has a few things to say as well and he will definitively ruffle some feathers with this episode.

We start off with playing Wikileaks by talking about a letter the EPA sent to all auditors regarding the staged introduction of V3 of the PFAS National Environmental Management Plan (NEMP) and also a clarification regarding PFAS and the Duty to Report. (Plug to our previous Episode #25 The Duty to Report). 

Then Gunnar and James hash out some ideas on duplicates, high RPDs, re-running of samples, basic statistics, experimental setups in science and why being 'conservative' might not be delivering the results you think it is.

Episodes we talk about: 

#29 The New AS5370 Standard with Linda Apthorpe 

#25 The Duty to Report with Elizabeth Wild.

#11 The Sampling Evolution with Ross McFarland

Links:

EPA regulatory updates

Deana Crumbling

Security Theatre - Wikipedia

This episode was recorded on 17 May 2025

Listen to Below the Surface and collect CPD points. We have confirmation that you can claim 0.5 points for every hour you spend with us under the Self Education Category

Contact: [email protected]

https://www.linkedin.com/company/below-the-surface-podcast

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

More from Below the Surface

#45 The Disclaimer
56 min · Jun 26, 2026
#44 The Duplicate Pushback
75 min · Jun 5, 2026
#43 The Negotiator
64 min · May 15, 2026
#42 The Basics: Microplastics
53 min · Apr 24, 2026
#41 The AI Revolution
59 min · Apr 2, 2026
#40 The Risk Assessment
58 min · Mar 13, 2026