Latest news, insights, and discussion on US and global drinking water regulations.

WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

EPA Seeks Court‑Ordered Removal Of 4 PFAS Limits The U.S. EPA is testing a new procedural strategy to remove four PFAS drinking‑water limits from ongoing litigation, asking the D.C. Circuit Court of Appeals to invalidate those limits on the grounds that the EPA itself committed a procedural misstep when issuing the 2024 PFAS rule.
Putting The National Toxicology Program's Fluoride Review In Context Despite renewed public concern over fluoride and cognition, the National Toxicology Program’s findings focus on high‑fluoride groundwater conditions — not the controlled levels used in U.S. drinking water systems. Understanding that distinction is critical for utilities navigating policy questions and community expectations.
Opinion: Why PFAS Policymakers Should Read Past The Abstract When it comes to drinking water, sound public policy requires sound scientific research. Publication in a prestigious, peer-reviewed journal helps establish legitimacy for scientific claims in public discourse. But science is a social process, scientific standards of evidence vary across disciplines, and peer review does not guarantee validity. For readers who stop at the abstract, these distinctions can be easy to miss.
Planting The Seeds Of Inspiration: Eelgrass Restoration
Restoring eelgrass beds is critical because they provide habitat for many kinds of marine life, improve water quality by filtering out pollution, and the plant’s root system stabilizes the sediment on the seafloor, protecting shorelines from erosion.
PFAS Are Turning Up In The Great Lakes, Putting Water Supplies At Risk — Here's How They Get There No matter where you live in the U.S., you have likely seen headlines about PFAS being detected in everything from drinking water to fish to milk to human bodies. Now, PFAS are posing a threat to the Great Lakes, one of America’s most vital water resources.
Why Too Much Phosphorus In America's Farmland Is Polluting The Country's Water When people think about agricultural pollution, they often picture what is easy to see: fertilizer spreaders crossing fields or muddy runoff after a heavy storm. However, a much more significant threat is quietly and invisibly building in the ground.
Water In 2026: The Nexus Of Policy, Technology, And Resilience As water systems become more circular and complex, understanding and managing the subsurface — the hidden half of the water cycle — is becoming a critical enabler of resilience. This article explores the key trends shaping this new reality, from tackling “forever chemicals” to the water strategies redefining heavy industry.
PFAS In Pregnant Women's Drinking Water Puts Their Babies At Higher Risk, Study Finds
When pregnant women drink water that comes from wells downstream of sites contaminated with PFAS, known as “forever chemicals,” the risks to their babies’ health substantially increase, a new study found. These risks include the chance of low birth weight, preterm birth, and infant mortality.
PFAS Settlements: Debunking The Myths And Revealing What's Really At Stake For Water Utilities Misinformation and confusion could prevent some utilities from benefitting from the aqueous film-forming foam multidistrict litigation (AFFF MDL) settlements. Here are five common myths about the AFFF MDL PFAS settlements and how public water systems can make the most of this unprecedented funding opportunity.
When Chemistry Meets Water Innovation
Nobel-winning molecular materials are poised to reinvent purification, desalination, and reuse.

DRINKING WATER PRODUCTS

Why Should We Care About NSF/ANSI 61 Certification?

According to National Sanitation Foundation (NSF) and the American National Standards Institute (ANSI), it's a set of standards relating to water treatment and establishes criteria for the control of equipment that comes in contact with either potable water or products that support the production of water.

Desalination Of Sea Water

Desalination is the name given to processes that remove salt from water

MECTAN® Grit Chamber

Grit is a source of problems in wastewater treatment facilities, which causes wear and tear on mechanical equipment, decreases the effective treatment volume in basins, causes pipe blockages and generally increases operating costs

BioBarrier® Membrane BioReactor (MBR) & HSMBR

Bio-Microbics introduces a new generation of wastewater treatment solutions, the BioBarrier® HSMBR® (High Strength Membrane Bioreactor), to help meet the increasingly stringent needs of specialized applications. The membranes and processes used in this advanced system act as an impenetrable physical barrier for nearly all common pollutants found in wastewater today. The advanced technology offers the highest quality effluent possible on the market. The BioBarrier® MBR was the first system to be approved for water reuse (NSF/ANSI Std 350, class R) by the NSF (National Sanitation Foundation) International.

A New Way Of Designing With Reverse Osmosis Membranes

Process design in water treatment is historically confined to proprietary or user-defined spreadsheets on a unit operation basis, with users manually adding results from each unit process upstream into the next operation.

Temperature Measurement

Endress+Hauser offers a complete assortment of compact thermometers, modular thermometers, thermowells, measurement inserts, transmitters and accessories for all types of process industries such as Oil & Gas, Chemicals, Food & Beverage, Life Sciences, Primaries & Metal, Power & Energy.

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PFAS regulatory requirement-GettyImages-2220893562

EPA Seeks Court‑Ordered Removal Of 4 PFAS Limits

Putting The National Toxicology Program's Fluoride Review In Context

Despite renewed public concern over fluoride and cognition, the National Toxicology Program’s findings focus on high‑fluoride groundwater conditions — not the controlled levels used in U.S. drinking water systems. Understanding that distinction is critical for utilities navigating policy questions and community expectations.
HAAs In The EU: Monitoring For Haloacetic Acids Under The Drinking Water Directive

In this Q&A, Dr. Elke Süss of Metrohm addresses the urgent need for haloacetic acid testing in response to “one of the most significant updates to EU drinking water monitoring in recent years.”
PFAS Unpacked: Experts Answer Questions On EPA Rules, Funding, Treatment, And More

With the U.S. EPA's PFAS rules now in place, utilities are finding themselves with a growing number of questions regarding how to treat these chemicals, the potential costs, and much more. For answers, Water Online's chief editor, Kevin Westerling, hosted an Ask Me Anything session featuring Ken Sansone, Senior Partner at SL Environmental Law Group; Kyle Thompson, National PFAS Lead at Carollo Engineers; and Lauren Weinrich, Principal Scientist at American Water.
Monitoring Know-How For PFAS Regulations

A Q&A to explain and resolve issues confronting water suppliers as they endeavor to comply with the monitoring requirements of federal PFAS regulations.
Clearing LCRI Hurdles

Assessing what lies ahead in the 10-year race to go lead-free, otherwise known as the Lead and Copper Rule Improvements (LCRI).

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Chromatography In Biologics Manufacturing: Purification Science, Resin Applications, And System Qualification

Explore chromatography fundamentals, resin selection strategies, and the regulatory frameworks required to qualify automated systems for compliant, commercial-scale biologics manufacturing.
Watch That Car-go! Acceleration Towards MSC-EV Characterization

EV production must align with CMC and regulatory standards before it can reach its full potential. This study compares conditioned medium across scalable platforms to optimize EV manufacturing for the clinic.
How Utilities, Engineers, And Manufacturers Can Overcome Mounting PFAS Compliance Workloads

Recent federal PFAS regulations will overwhelm consulting engineers, water and wastewater utilities, and equipment manufacturers as thousands of utilities work to comply. Generative design can enable these parties to meet the workload demand and deadlines.
Ion Exchange (IX) Systems
Ion exchange (IX) is a tried-and-true method of removing metals and other inorganic compounds from water. Arsenic, cadmium, chromium, copper, lead, nickel, selenium, radionuclides, and zinc are just a few examples of the compounds that our ion exchange systems have removed from water.
Securing Sponsor Reimbursement For CRIO Fees

Gain sponsor approval by positioning technology as key to streamlined workflows, compliance, and patient safety — reducing risk and improving collaboration. Explore strategies now.
NGS-Based Assays In CGT: Enhancing Product Development

Examine how NGS brings essential clarity to cell and gene therapy development by enabling sensitive biosafety testing, detailed genetic characterization, and reliable stability monitoring.
Lentiviral Vector Upstream Process

Scalable lentiviral vector production is moving beyond adherent systems. Learn how streamlined workflows enable linear scale-up in stirred-tank bioreactors for cost-effective gene therapy manufacturing.
How Digital Twins And Hybrid Modelling Optimize Cell Culture Process For Better Production

Discover how digital twins are enabling the optimization of cell culture processes for improved, more predictable outcomes in the creation of therapeutic proteins and antibodies.
Contamination In The Shadows: Risks Lurking From Environmental Issues

Discover how science-based bio-decontamination strategies effectively eliminate invisible pathogens and rapidly restore facilities to operational safety following major infrastructure disruptions.
The New Imperative For Water Treatment: A Shift From Compliance To Efficiency

As water scarcity and energy costs rise, new ultrafiltration membrane technologies deliver higher flux, longer lifespan, and reduced fouling—turning water treatment from a compliance task into an efficiency opportunity.
The Cost Of Not Using Ozone, A Lifecycle ROI Analysis For Water Treatment Systems

Focusing on lifecycle ROI reveals ozone's value. It significantly reduces chemical and operational costs while extending filter media life, providing measurable long-term financial savings and compliance resilience.
Quantification Of Semaglutide With A Reliable Analytical Method

Explore a validated LC-MS/MS method for precise Semaglutide quantification in plasma, which features enhanced sensitivity, peak definition, and reproducibility using innovative technologies.
Nanobubble Ozone Technology – Advancing Mass Transfer Through Physics

Nanobubble physics enable higher ozone stability and mass transfer efficiency in water. Discover how the negative surface charge of these microstructures improves localized oxidation and penetration into difficult matrices.
Electrocoagulation Unlocked

Despite electrocoagulation's demonstrated effectiveness, developing a reliable, low maintenance reactor with sufficient water processing volume has proven to be a significant engineering challenge.

Q&A: Navigating PFAS In Medical Devices

Explore how PFAS in medical devices pose environmental and health concerns, prompting regulatory scrutiny.
From Syringes To Wearables: Formulation's Impact

High‑concentration biologic formulations for prefilled syringes and on‑body devices enable easier self‑administration, reduce treatment burden, boost adherence, and address complex formulation challenges.
UPLC-MS/MS Determination Of GLP-1 Analogue

Discover a robust, evaporation-free method for analyzing liraglutide in human plasma using LC-MS/MS to ensure high sensitivity, reproducibility, and improved analyte recovery.
Improving API Solubility Using Hot Melt Extrusion Formulation

Solubility of active pharmaceutical ingredients (APIs) is a challenge in drug development. Discover how hot melt extrusion with polyvinyl alcohol enhances API solubility and stability to offer improved drug delivery.

WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

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