Insights Blog


Introducing VaporDeck™: More than a Helium Shroud

Enthalpy Analytical's VaporDeck™ revolutionizes vapor intrusion testing with faster sampling, reduced helium use, and innovative designs, offering superior efficiency and reliability for site development and public safety.


Top Takeaways: Fenceline Monitoring Requirements from the New HON MACT

The regulatory landscape governing hazardous air pollutants (HAPs) continues to evolve, with the recent finalization of the Hazardous Organic NESHAP (HON) Maximum Achievable Control Technology (MACT) rule. This landmark development introduces fenceline monitoring (FLM) requirements for certain affected facilities. This blog breaks down the key aspects of the HON MACT FLM requirements and what they mean for industry stakeholders.


How We’re Growing to Support the Southeastern Region

Learn how our expansion into the Carolinas emphasizes quality service and expertise in regulatory requirements. With a focus on meeting deadlines and providing exceptional customer service, we’re inviting you to elevate your sampling game in the Carolinas.


Breaking Down California’s Multi-Agency Update to Vapor Intrusion Guidance

In February 2023, an update to the 2011 DTSC Soil Vapor Intrusion guidance was released with input from DTSC, CalEPA, and Regional and State Water Quality Control Boards. This comprehensive, long-awaited, revised guidance provides updates on vapor intrusion concepts and practices and will expand their application from regional to statewide in California.


The Power of Precision: Surface Dust Collection Test

Curious about mold identification and air purification systems? 🤔 Discover our comprehensive surface dust collection test that evaluates mold spores and identifies dust particles, arming you with vital insights for choosing the right air purification system for your home! 🏠


Testing PFAS in the Lab: How to Avoid PFAS Cross-Contamination

Per- and polyfluoroalkyl substances (PFAS) are in the air we breathe, the food we eat, the water we drink, the carpet we walk on, and the objects we handle every day. And, yes, PFAS contamination finds its way into laboratory environments, too. Learn how to avoid cross contamination here.


The Roadmap to Successful US EPA Method 29 Analysis

US EPA Method 29 ensures metal emissions from industrial smokestacks meet state-specific limits to protect the environment. As the limits for specific elements decrease over time, achieving decreased instrument detection limits becomes crucial for a laboratory's success.


EPA Approves California Statewide Toxicity Provisions:

In 2020 the California State Water Resources Control Board (SWRCB) adopted a State Policy for Water Quality Control: Toxicity Provisions (Provisions). Subsequently, the SWRCB sought approval of the Provisions from the US Environmental Protection Agency (EPA). On May 1, 2023, EPA Region IX officially approved the Provisions for use as a regulatory tool under the Clean Water Act (CWA).


Team Montrose Cycles to Beat Multiple Sclerosis at the Texas MS 150

On April 29th and 30th, the Montrose team, along with thousands of participants, cycled for the Multiple Sclerosis Society Bike MS. We partnered with 311 other teams to help raise more than $7M in the fight against multiple sclerosis and spread awareness about this devastating disease.


EPA Updates HON MACT: What You Need to Know

The Environmental Protection Agency (EPA) recently issued an updated version of the Hazardous Organic NESHAP Maximum Achievable Control Technology (HON MACT) rule. A major objective of the new rule is to reduce fugitive/area source emissions of certain hazardous air pollutants, which EPA has determined pose an unacceptable risk to nearby communities.


The Top Three Questions We Heard at CAPCA 2023

Jim Jacklin recently attended the 2023 CAPCA Spring Meeting in Asheville, NC. He enjoyed discussing a wide variety of analytical projects, spanning air quality, PFAS testing, to stack testing - several of which focused on Method 29. Here are the top three questions that stood out to him.


What’s New With Method 23?

It’s crucial to monitor our air, water, and soil for pollutants but doing so accurately is challenging. That’s why the Environmental Protection Agency (EPA) has developed an improved method for sampling and analyzing Dioxins/Frans, PAHs, and PCBs in air.


EIA 2023 Recap!

What a gorgeous week it was in Nashville for the EIA 2023 annual conference! Here's a recap from our industry experts.


Tips for Collecting Your PFAS Samples

You received your PFAS Sampling Kit, and you’re ready to begin sampling. It's important to follow certain guidelines to ensure accurate and reliable results. The following tips are helpful whether you’re new to PFAS sampling or a seasoned pro.



To ensure temperature requirements aren’t violated it’s recommended that temperature-sensitive samples should be shipped to arrive at its destination by the next day after sampling. But, what happens when next day isn’t next day? Here are a few tips to help strategize!


How to Complete a COC

Here are a few tips that are often overlooked when completing a COC to help ensure a successful sample exchange with your lab.


Simplify and Streamline Fenceline Reporting

Companion EPA Methods 325A (sampler deployment and collection) and 325B (sampler preparation and laboratory analysis) are the work practice standards for determining airborne Benzene and select Volatile Organic Compounds (VOCs) using passive (diffusive) sampling tubes collected at facility property boundaries (fenceline monitoring) as well as from fugitive and area emission sources.


What is Green Building?

Despite the disruptions caused by the pandemic, the Green Building and Products industry has not shown any signs of decline.


Designing a Successful PFAS Sampling Plan

Per- and polyfluoroalkyl substances (PFAS) are considered emerging contaminants by the Environmental Protection Agency (EPA) and are of great public health and environmental concern.


Performance-based Air Test Methods – A Love Story

A winter chill has floated into Research Triangle, NC and will likely transitioned to a cold shiver as we move through the winter months. Meanwhile, our stack-tester friends are still going strong out in the field knocking out one test after another.


Working from Home: Tips for a Healthy Work Environment

WFH – work from home, WFA – work from anywhere, remote office, mobile work, remote job, future of work, flexible workplace, telework, teleworking….and the list goes on. Whatever you or your company call this new reality, it seems as though “workplaces” will be changed indefinitely.


Whole Effluent Toxicity Testing 101

Whole Effluent Toxicity (WET) testing is a critical component of monitoring the health of aquatic ecosystems and it is included in many National Pollutant Discharge Elimination System (NPDES) permits. If your NPDES permit includes WET testing, it is important to understand why it exists and how to best implement it in order to save time, money, and other resources.


Blazing New Trails in Environmental Lab Testing

Welcome to the Enthalpy Analytical blog!! We’re excited about this launch and look forward to sharing our journey each step of the way as we blaze new trails and explore new ideas in environmental laboratory testing services.