Rephonic
Artwork for Below the Surface
Environmental Consulting
PFAS
Acid Sulfate Soils
Asbestos
Environmental Law
EPA
Environmental Health
Environmental Regulation
Electric Vehicles
New South Wales
Contaminated Land
Site Assessment
Environmental Management
Contaminated Sites
Remediation Action Plans
Preliminary Site Assessment
Detailed Site Investigation
Contamination
Environmental Assessments
Soil Management

Casual chats between an Austrian and Australian on environmental topics that usually don't get talked about openly. Hosts Gunnar Haid and James Hammond set out to provide a light-hearted and thought-provoking look into Contaminated Land, Resource Recovery, Ecology and general environmental issues in Australia, in particular NSW. They use their experience and industry connections to talk about subj... more

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Artwork for Below the Surface

Latest Episodes

What does a career in the environmental industry actually look like, and how do you know when it is time for a change? That change can range from minor adjustment in your life and your expectations and goals to a big one like changing jobs or even ca... more

Disclaimers in our reports. Useless fluff or necessary ass covering? 

Who better to discuss this than Sarah Mansfield (LinkedIn) who is returning to Below the Surface and almost immediately raises the bar for all future lawyer and engineer jokes. Sa... more

YouTube

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 e... more

YouTube

Hammond relives his time as a representative for Australia in international biodiversity negotiations at COP13 of the Convention on Biological Diversity. But before that a few updates, a hint for auditors and Gunnar almost completely loses it while t... more

YouTube

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Recent Guests

Belle Casement
Risk assessor, works for Terravale
Terravale Consulting
Episode: #44 The Duplicate Pushback
Brooke Kelly
Environmental scientist at Reditus
Reditus
Episode: #42 The Basics: Microplastics
Alex Rankin
AI consultant specializing in environmental applications
Driftwood Crew Consulting
Episode: #41 The AI Revolution
Kylie Dodd
Risk assessor at GHD, environmental toxicology and risk assessment specialist
GHD, Australia
Episode: #40 The Risk Assessment
Sue-Ellen Dear
Expert on Acid Sulfate Soils and co-author of the Queensland Acid Sulfate Soil Guidelines.
Queensland Government
Episode: #39 The Big ASS Questions
Kristie Williams
Expert on Acid Sulfate Soils management and co-author of the Queensland Acid Sulfate Soil Guidelines.
Queensland Government
Episode: #39 The Big ASS Questions
Angus McElnea
Co-author of the Queensland Acid Sulfate Soil Guidelines.
Queensland Government
Episode: #39 The Big ASS Questions
Professor Albert Juhasz
A research professor at the Futures Industries Institute, expert on bioavailability and human health exposure.
Futures Industries Institute, University of South Australia
Episode: #38 The Bioavailability
Martyn Kirk
Professor of Epidemiology at the Australian National University.
Australian National University
Episode: #35 The PFAS Heath Advice

Hosts

Gunnar Haid
Host of Below the Surface
James Hammond
Co-host of Below the Surface

Reviews

4.6 out of 5 stars from 19 ratings
  • Bandaid-ripping conversions for consultant, government and industry

    Wow - thanks for being really brave James and Gunnar and taking the time to record this series. These are important bandaid-ripping conversions on complex environmental policy and assessment topics. The guest speakers are super interesting too.

    Apple Podcasts
    5
    Lost_in_the_burbs
    Australia2 years ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

The show blends practical tips with candid industry critique.
Insightful, brave conversations on complex environmental policy and practice.
Guests are consistently interesting and add depth to regulatory discussions.

Chart Rankings

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Talking Points

Recent interactions between the hosts and their guests.

#41 The AI Revolution
Q: What is AI and how do LLMs fit into it?
AI is a set of computer tools trained on large data to recognize patterns; LLMs predict language and are good for summarizing, drafting, and analyzing documents, while other models handle vision, forecasting, etc.
#39 The Big ASS Questions
Q: Can you explain the concept of acid neutralizing capacity?
Acid neutralizing capacity refers to the ability of soil to deal with acidity, which can come from various sources, including calcium carbonate shells and other materials.
#39 The Big ASS Questions
Q: What makes Acid Sulfate Soils special compared to other soils?
Acid Sulfate Soils contain iron sulfide minerals, most commonly pyrite, which when exposed to oxygen can produce sulfuric acid, leading to significant environmental issues.
#38 The Bioavailability
Q: When does it make sense to look at bioavailability as part of a risk assessment?
If there are exposure parameters that can be modified suitably or if the history of the site indicates low bioavailability.
#38 The Bioavailability
Q: Could you introduce yourself to our listeners, please, Albert?
I'm a research professor at the Future Industries Institute at the University of South Australia, focusing on understanding how much contaminated soil is absorbed in the human body.

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Frequently Asked Questions About Below the Surface

What is Below the Surface about and what kind of topics does it cover?

Casual, practitioner-focused discussions center on environmental topics that rarely get mainstream spotlight, with a practical bent toward contaminated land, resource recovery, pollution risk, and regulatory dynamics in Australia. Through lively banter between two hosts—one Austrian, one Australian—the show blends policy reflections, case studies, and actionable takeaways for professionals. Notable strengths include a broad roster of expert guests, clear links to policy and industry practice, and a laid-back barometer for how regulatory and industry narratives shape on-the-ground decisions. The format often pairs technical depth with accessible storytelling, making it useful for listeners who want practical insights, regulatory context, and... more

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1. Conversations
2. Background Briefing
3. Straight Talk with Mark Bouris
4. If You're Listening
5. The Karl Stefanovic Show

How many episodes of Below the Surface are there?

Below the Surface launched 2 years ago and published 46 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on Below the Surface?

Recent guests on Below the Surface include:

1. Belle Casement
2. Brooke Kelly
3. Alex Rankin
4. Kylie Dodd
5. Sue-Ellen Dear
6. Kristie Williams
7. Angus McElnea
8. Professor Albert Juhasz

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