PFAS or “per-and polyfluoryoalkyl substances” are a class of compounds (several thousand) that contain a chain of carbon and fluorine in their structure. PFAS have been used globally for over 60 years, and are still being used because of their many useful properties – they are chemically inert; resistant to [...]
On March 29, 2023, the U.S. EPA published the proposed PFAS Drinking Water Regulations in the Federal Register. This proposed rule for Per- and Polyfluoroalkyl Substances (PFAS) includes Maximum Contaminant Levels (MCLs) of 4.0 ng/L for two PFAS constituents (PFOA and PFOS), and an MCL using a Hazard Index of [...]
August Mack was retained by a large water and wastewater utility serving over 1,000,000 customers to develop its overall strategy for managing PFAS associated with its operations. The utility uses groundwater and surface water to provide drinking water to its customers and operates an extensive wastewater conveyance and treatment system [...]
What do non-stick coated pans, waterproof fabrics, oil-resistant food packaging, stain-resistant materials, and fire-fighting foam all have in common? They all potentially contain fluorinated compounds, and more specifically, are made with a suite of specialty chemicals called Perfluorooctanesulfonic acid (PFOS) and Perfluorooctanoic acid (PFOAs). PFOS and PFOAs both are fluorinated [...]
PFAS or Per- and Polyfluoroalkyl Substances, have been around since the 1940s and are used in a wide-range of industrial and commercial applications and consumer products. Toxicological studies have shown that exposure to PFAS can potentially result in liver, endocrine, immunological, and reproductive effects, as well as cancer. The U.S. [...]
