Accurate laboratory results begin long before samples arrive at the laboratory. Proper field sampling techniques are essential for minimizing the potential for cross-contamination and ensuring data quality. Because PFAS compounds are found in many everyday consumer products, extra care should be taken during sample collection.
Advancing its commitment to supporting a comprehensive federal services program, Merit Laboratories has expanded its DoD ELAP accreditation to include Incremental Sampling Methodology (ISM) sample preparation.
Merit Laboratories is pleased to announce its participation in the 2026 International Conference on Remediation of Chlorinated and Recalcitrant Compounds (Battelle Chlorinated Conference), taking place May 31 – June 4, 2026, in Fort Worth, Texas. Recognized globally as one of the leading conferences for environmental remediation professionals, the event brings together scientists, engineers, consultants, regulators, and industry leaders to advance solutions for complex environmental challenges.
Incremental Sampling Methodology (ISM) is an increasingly accepted approach for characterizing soil contamination and reducing the uncertainty commonly associated with traditional discrete sampling methods. By collecting and combining multiple increments from a defined area, ISM is designed to provide a more representative estimate of mean contaminant concentrations within a designated decision unit.
Incremental Sampling Methodology (ISM) is increasingly used across the environmental industry to evaluate soil contaminants. Unlike traditional discrete sampling, ISM collects numerous soil increments that are combined, processed, and subsampled to produce more representative measurements of contaminant concentrations within a defined area.
The U.S. EPA announced a proposal for regulating PFAS chemicals in the nation’s drinking water. Through the U.S. EPA’s proposal, perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) will become regulated through the Safe Drinking Water Act (SDWA). According to the U.S. EPA, this preliminary determination is a necessary step toward providing state and local communities with key information about PFOA and PFOS in drinking water.
The first-ever Great Lakes PFAS Summit will bring together scientists, government officials, regulators, academic researchers, industry, and community organizations on all topics PFAS. The summit is set for October 27-28, 2020 in Lansing, Michigan, will be hosted by the Michigan Department of Environment, Great Lakes, and Energy (EGLE). The summit will provide participants with current and reliable PFAS science and policy, explore PFAS research topics, facilitate networking, and share information on the latest research and technology. EGLE is developing the agenda for this two-day conference. Topic areas for the Great Lakes PFAS Summit include
As part of a nationwide trend, the New York Department of Environmental Conservation (NYDEC) has issued Guidelines for Sampling and Analysis of PFAS. The guidance document summarizes procedures and updates previous NYDEC Division of Environmental Remediation (DER) technical guidance for PFAS activities.
Merit Laboratories was just one of four national laboratories acknowledged in the newest approved method, EPA 533, for PFAS testing in drinking water that just released by the U.S. EPA. Merit was acknowledged in the approved method for completing a validation study using EPA 533 and was recognized for providing valuable feedback on the method procedures and reviewing the draft method manuscript.
The implementation of the the U.S. Environmental Protection Agency’s PFAS Action Plan is one step closer. In the December 4, 2019 Federal Register the EPA published an Advanced Notice of Proposed Rulemaking (ANPRM).
Four new compounds have been added to the State of Michigan’s minimum laboratory PFAS analyte list, bringing the total to 28. The list is maintained by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) for the testing of drinking water, groundwater, surface water, wastewater, soil, and landfill leachate.
The Michigan Department of Health and Human Services (MDHHS) is the recipient of a $1-million grant to investigate the relationship between drinking water contaminated with PFAS and health outcomes. The grant was awarded by the Centers for Disease Control (CDC) and the Agency for Toxic Substances and Disease Registry (ATSDR).
The Michigan PFAS Action Response Team (MPART) formally recommended to move forward with establishing draft maximum contaminant levels (MCLs) for PFAS compounds in drinking water. The recommendation was made by unanimous vote by MPART’s board on September 27, 2019 in Lansing. The MPART board is recommending the following health-based MCLs for seven PFAS compounds.
As the nation’s PFAS contamination problem continues to grow, a report recently released by the Environmental Working Group states that PFAS manufacturers have known about the risks associated with these chemicals for more than 60 years. The report documents studies and internal memos with a timeline that begins in 1950. PFAS manufacturers 3M and DuPont are the focus of the report.
