Merit Laboratories, Inc.
Congratulations to Our Clients Recognized in ...

We are excited to congratulate our outstanding clients for being recognized among the Top 200 Environmental Firms of 2025, as ranked by Engineering News-Record (ENR). This well-earned recognition reflects your dedication to innovation, quality, and excellence across the environmental industry.

Congratulations to Our Clients Recognized in the 2025 ENR Top 200 Environmental Firms!
Helium Shroud, Soil Gas
Merit Laboratories, Inc.
Soil Gas Sampling Made Easier with Merit’s ...

Collecting high-quality soil gas samples in the field for TO-15 analysis is essential for generating reliable data. Yet in the field, the process can be time-consuming and prone to error. With our clients’ sampling challenges in mind, Merit Laboratories designed a helium shroud that makes soil gas sampling more efficient, accurate, and reproducible — without the need for tools or field calibration.

Soil Gas Sampling Made Easier with Merit’s Helium Shroud
NEMC
Merit Laboratories, Inc.
Merit Laboratories to Present at NEMC 2025 in ...

We’re excited to announce that Merit Laboratories will be participating in the conference, taking place August 4th - 7th, 2025, in St. Louis, Missouri. This year’s conference theme, “Building a Quality Culture as the Foundation for Reliable Data,” underscores the importance of quality assurance and continuous improvement in environmental monitoring and measurement.

Merit Laboratories to Present at NEMC 2025 in St. Louis
Environmental Testing, Merit Laboratories
Merit Laboratories, Inc.
Are you being stung by Acronym Chem Fog?

Have you ever reviewed a laboratory report and felt overwhelmed by acronyms like MDL, RL, LOQ, or IDL? You’re not alone. These terms are critical to understanding the sensitivity, precision, and reliability of laboratory results in environmental testing—but they can also be confusing, especially when used interchangeably or inconsistently across different labs or agencies.

Are you being stung by Acronym Chem Fog?
PFAS, PFOS, EPA
Merit Laboratories, Inc.
Risk Assessment for PFOA and PFOS in Biosolids ...

The U.S. EPA released a Draft Sewage Sludge Risk Assessment for PFOA and PFOS, open for public comment. The public comment for the draft, released in January 2025, has been extended until August 14, 2025.  This draft risk assessment reflects the EPA's latest scientific understanding of the potential risks to human health

Risk Assessment for PFOA and PFOS in Biosolids Released by U.S. EPA

QA-QC

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A Closer Look at the QA/QC Samples That Ensure Data Quality

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A Closer Look at the QA/QC Samples That Ensure Data Quality

When you receive your analytical report, you might notice several additional quality assurance and quality control (QA/QC) samples listed alongside your project data. These quality checks are not just routine - they are critical for validating data integrity, identifying potential interferences, and demonstrating defensibility in environmental decision-making. Below is a closer look at the most common QA/QC samples analyzed in environmental laboratories and what they can tell you about your data quality.

Helping You Understand Quality Assurance-Quality Control Samples

Helping You Understand Quality Assurance-Quality Control Samples

After receiving your analytical data report, do you ever wonder why all of the additional quality assurance-quality control (QA-QC) samples are analyzed and reported?  The following definitions will help you better understand the various QA-QC samples commonly reported by Merit Laboratories and what they can mean for your analytical data.