Merit Laboratories is proud to have been a participating laboratory in a multi-laboratory validation study to support a new ultra-short chain PFAS drinking water method under development by the U.S. Environmental Protection Agency. This study represents an important step toward standardizing the measurement of ultra-short chain PFAS in drinking water and other aqueous environmental matrices.
Merit Laboratories is proud to announce an expansion of its PFAS accreditation through the Department of Defense Environmental Laboratory Accreditation Program (DoD ELAP), reinforcing our commitment to delivering high-quality, compliant PFAS data for defense and federal projects. Merit Laboratories’ DoD ELAP scope now includes the following compounds analyzed by EPA Method 1633 (LC/MS/MS).
Soil can be a vector for harmful bacteria, plant viruses, fungi, nematodes, and other biological propagules. To safeguard U.S. agriculture and natural resources, the United States Department of Agriculture (USDA) strictly regulates the movement of soil, both from foreign sources and from domestic areas under federal quarantine.
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.
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.
Merit Laboratories is proud to have been a participating laboratory in a multi-laboratory validation study to support a new ultra-short chain PFAS drinking water method under development by the U.S. Environmental Protection Agency. This study represents an important step toward standardizing the measurement of ultra-short chain PFAS in drinking water and other aqueous environmental matrices.
Merit Laboratories is proud to announce an expansion of its PFAS accreditation through the Department of Defense Environmental Laboratory Accreditation Program (DoD ELAP), reinforcing our commitment to delivering high-quality, compliant PFAS data for defense and federal projects. Merit Laboratories’ DoD ELAP scope now includes the following compounds analyzed by EPA Method 1633 (LC/MS/MS).
Soil can be a vector for harmful bacteria, plant viruses, fungi, nematodes, and other biological propagules. To safeguard U.S. agriculture and natural resources, the United States Department of Agriculture (USDA) strictly regulates the movement of soil, both from foreign sources and from domestic areas under federal quarantine.
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.
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.
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.
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.
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
In an initiative to provide a structured approach for assessing the presence of PFAS in consumer products, ASTM International is set to release a new standard, F3700, which will serve as a critical guide for laboratories, manufacturers, regulatory bodies, and consumers. Developed by the ASTM Consumer Products Committee (F15), this new standard will outline best practices and methodologies for testing and analyzing PFAS in various consumer articles, ranging from cosmetics to automobiles.
