For many of us, December is a time to reflect, plan, and make resolutions about what we want to accomplish in the new year. It’s an excellent tradition—and not just for personal matters, but for your professional life as well.

If there are technologies or best practices you want to learn more about before you head into 2022, we’ve got you covered. We’ve rounded up our most popular blog posts and webinars about drilling, site characterization, and remediation to help you gain the knowledge you’ll need to hit your goals in the new year.


Top 10 HRSC & Remediation Blog Posts in 2021


1. The Basics of In Situ Stabilization

Not sure what in situ stabilization (ISS) is or when you’d want to consider using it? ISS expert Jon Simpson explains all that and more in this post.


2. What is an MIHPT?

The Membrane Interface Probe – Hydraulic Profiling Tool (MIHPT) can be a powerful tool—but you need to understand where it can and can’t provide value. This overview should get you on the right path.


3. Dealing With Emerging Contaminants

Although this blog post is deep in our archives, it remains popular for the thorough rundown if provides of the different types of emerging contaminants and where they come from.


4. Why You Should Be Using Soil Vapor Sampling During Site Characterization

Soil vapor sampling can help you develop a more complete assessment of your site—as well as determine if there are near-term safety issues that need to be addressed. This blog post explains.


5. What You Need to Know About Activated Carbon for Soil and Groundwater Remediation

This guest post from Joe Wong, the Chief Technology Officer at Advanced Emissions Solutions, explains what activated carbon is, how it’s manufactured, and how it treats contaminants.


6. New Depths for Groundwater Profiling

Curious about the range of tools available for groundwater profiling? This article shares the options and an overview of how they work.


7. ZVI 101: What is ZVI Emplacement and How Does It Work?

There’s a lot of discussion about ZVI, but do you know how it actually works? If not, expert Deborah Shaffer Schnell can help you out with this explanation of the technology.


8. How to Develop a Remediation Strategy for Dark Matter

Back matrix diffusion is a common problem for low permeability zones, but are there ways to take this “dark matter” into account when planning your remediation strategy? Yes—and Eliot Cooper explains how.


9. No Nonsense Answers to Questions About Colloidal Activated Carbon

Experts Joe Wong and Eliot Cooper answered real-life questions about our new Cascade Chemistries product, FluxSorb™ IS.


10. A Deeper Look at Permeable Reactive Barriers

Curious about PRBs and how they can work with ZVI? Learn how effective this passive remedy can be in this post.


Top 10 Drilling Blog Posts in 2021


1. Drilling 102: Introduction to Environmental and Geotechnical Drilling Methods

This is a long-time read favorite, because it offers a quick intro to the various types of drilling methodologies and their individual strengths. If you’re just starting out or want to brush up on the basics, this is a great place to start.


2. Drilling 106: An Introduction to Core Drilling

Did you know that core drilling was invented by the ancient Egyptians? This technology is more than 5,000 years old but is still used today. Learn how and why in this article.


3. Drilling 105: An Introduction to Auger Drilling

Another ancient technology, auger drilling, was invented by Greek scientist and mathematician Archimedes. This blog post explains how it works and when you should consider using it.


4. 3 Factors to Consider in Choosing a Drilling Technology

Selecting a drilling technology for a project can feel tricky, but if you’re able to answer three questions first, you should be well on your way to picking the one best suited for your site.


5. Sampling 102: 4 Ways to Collect Deep Groundwater Samples During Drilling

This article covers four popular groundwater sampling methods that are often used when deeper groundwater samples are needed than DPT can provide.


6. Drilling 103: An Introduction to Air Rotary Casing Hammer (ARCH) Drilling

Many consultants have never used ARCH drilling on a project site—and neither have many drillers, for that matter. While this powerful option is somewhat of a specialty, it’s one you’ll want to be familiar with before you next encounter difficult lithology on a project site.


7. 5 Types of Projects Where You Should Consider Dual Rotary

If you aren’t familiar with dual rotary drilling, you’re not alone. This blog post explains what makes dual rotary unique, and when you’ll want to think about using it.


8. How to Write Your RFQs to Get More Accurate Sonic Drilling Quotes

Have you ever gotten a quote for sonic drilling work, hired the contractor, and then watched the cost overruns come rolling in? It’s exactly what you’re trying to avoid when you put together a request for quote (RFQ), so why does it still happen? In this article, you’ll learn what project details to include in your next RFQ to help your contractors minimize unknowns and provide accurate pricing.


9. 6 Reasons to Start Your Career in Drilling

The last two years have had many people reevaluating how they want to spend their careers—it’s no wonder that one of our most popular blog posts has been about why drilling might be a good fit! If you know someone who is looking for a career path that doesn’t involve a cubicle, consider sharing this article with them.


10. Is Rotary Drilling Right for Your Project?

Rotary drilling is actually comprised of multiple methodologies: air rotary, mud rotary, dual rotary, and reverse circulation. This blog post explains when each option may be best for the lithology.



Top 10 Webinars in 2021


1. Making ZVI Work: It’s More Than Just the Chemistry

Zero valent iron (ZVI) can be an extremely effective remedy for chlorinated solvent sites with possible back diffusion—but only if you know how to properly administer it. This webinar explains what you need to know to get the most out of ZVI remediation.


2. ERH vs TCH: How to Choose Your Thermal Remediation Technology (and Why)

Knowing that thermal technology would be a good solution for your remediation project is not the same as knowing which thermal technology would work. In this webinar, you’ll learn about electrical resistance heating (ERH) and thermal conduction heating (TCH), and when one is a better option than the other.


3. Struggling With CVOC Source Zone Treatment? Learn How NASA Figured It Out

Thanks to contamination at Cape Canaveral, NASA developed a new way to treat chlorinated volatile organic compounds (CVOCs) and made the technology available for commercial use. During this webinar, you’ll learn how emulsified zero valent iron (eZVI) works on contaminants and how it can be applied and optimized.


4. Drilling 202: An Introduction to Dual Rotary Drilling

What if there was a drilling technology designed to ensure proper isolation between zones, stabilize formations, and eliminate lost circulation issues? There is, and in this webinar you’ll learn the pros and cons of using it.


5. Thermal 101: What is Thermal Remediation and How Does It Work?

If you’ve never used a thermal remedy on a project site, you may not be familiar with the main technologies involved and what they’re capable of treating. This webinar is an excellent introduction to one of the most reliable treatments available for some of the hardest-to-treat constituents.


6. Drilling 107: An Introduction to Direct Push Technology (DPT)

DPT can be a confusing technology, since it’s used for everything from drilling and sampling to remedy implementation. It can seemingly do a little of everything—but that doesn’t mean it’s always the best option. In this webinar, you’ll learn how DPT works, the best applications, and the pros and cons of using it.


7. Low Temperature Thermal: The Sustainable Approach

Thermal technology is often associated with a high demand of resources and infrastructure, but that isn’t always the case. Low temperature thermal can address contaminants in a more environmentally and economically friendly way. This webinar explains when and where low temperature thermal is an option.


8. Thermal Treatment: A Reliable Option for Your Bedrock Source Zone

Effective remedies for fractured bedrock are few and far between—contamination migrates deep, with limited pathways out of the fracture system. Luckily, thermal remediation excels in this type of lithology. Learn how in this webinar.


9. ISS/ISCO: What You Need to Know for Project Success

Combining in situ stabilization (ISS) and in situ chemical oxidation (ISCO) can result in better site outcomes than using either treatment on their own. In this webinar, you’ll learn about when and how to use this power duo


10. Below Building Remediation: Considerations of In Situ Delivery Methods to Safety Address COCs

Subsurface contamination doesn’t halt at property lines or outside the front door—it seeps across lots and under buildings. Remediating under buildings can be done, but involves extra due diligence, monitoring, and consideration to ensure structural integrity remains intact. This webinar covers what you need to know about below building remediation.