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

WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

Pretreatment Systems Enable Complete And More Economical PFAS Solutions
For operators looking to optimize their PFAS removal systems, controlling the presence of dissolved organic carbon (DOC) offers an approach to minimizing operational costs due to granular activated carbon (GAC) reactivation and ion exchange media change-out.
What Utilities Don't Know About GAC Reuse For PFAS For utilities building PFAS treatment systems, thermal reactivation of spent granular activated carbon (GAC) may sound like the obvious answer. However, service provider availability and location, specific media acceptance criteria including quantity thresholds, restrictions on GAC type and condition, and regulatory uncertainty can all determine whether reuse is a viable option.
PFAS Funding Is Flowing — But Does The Water Sector Have Enough People To Deliver It? For several years, the PFAS conversation has centered on treatment options, testing, and funding. Those factors still matter, but they are no longer the primary constraint. Most utilities already understand the treatment routes available to them; the real challenge now is moving from technical possibility to operational performance, and that depends entirely on people.
The Cost Of Waiting: Utilities Face A Narrowing PFAS Compliance Window For years, the water industry's PFAS conversation centered on monitoring, testing, and regulatory anticipation. Today, that phase is largely over.
D.C. Circuit Upholds EPA's Hazardous Substance Designation For PFOA, PFOS
The U.S. Court of Appeals for the D.C. Circuit recently rejected industry challenges to the EPA's designation of PFOA and PFOS as hazardous substances under CERCLA, leaving the agency's April 2024 rule fully intact. While the case centered on the EPA's authority to make the designation, its practical significance for water utilities is simpler: the liability concerns that have accompanied the rule since its adoption remain unresolved.
How Donner Summit PUD Cut Backwash Water Use By 45% With Ultrasonic Algae Control
Recurring algal blooms severely compromise water treatment efficiency, clogging filters and wasting finished water through frequent backwashing. Targeted ultrasonic suppression controls raw water algae growth at the source, significantly improving influent turbidity and lowering operational costs.
SRP-Funded Technology Provides Affordable PFAS Testing For Homeowners
Widespread chemical contamination leaves many small water systems without viable testing options.Discover how an innovative, plant-based extraction method delivers affordable, highly accurate screening to identify complex contaminants and protect public health.
The Enzyme Bottleneck: Why Conventional Lake Management Is Failing — And What The Science Says About Genuine Bio-Dredging For decades, the dominant framework for assessing and managing lake health has been built around surface water measurements: chlorophyll-a, total phosphorus, water clarity, and the composite Trophic State Index derived from them. These metrics are familiar, standardized, and widely accepted. They are also, according to a growing body of peer-reviewed literature, measuring the wrong part of the lake.
Ozone Off-Gas: What It Reveals About System Efficiency, Safety, and Design
Learn how ozone off-gas impacts system efficiency, safety, and performance, and why monitoring and management are critical for optimized water treatment operations.
UK Reservoirs, Water Shortages, And Legionella Risks Is there a clear link between a less plentiful water supply and an increase in Legionella in our domestic water systems?

DRINKING WATER PRODUCTS

Waste Technologies Transform Problems To Profit

Anaerobic digestion processes that radically improve the quality of wastewater while delivering green energy extracted from biological waste streams are emerging as a profitable way for agricultural and food processing industries cope with the twin impact of drought and pollution challenges.

EPRO™ LMF Reverse Osmosis Systems

EPRO™ LMF Series are engineered our from the ground up to provide maximum treatment efficiency in a compact, skidded package. This series of RO systems removes impurities, such as bacteria and dissolved solids, from source water, including brackish water. Available configurations deliver permeate flow rates of 21 to 60 GPM (30,000 to 86,400 GPD) to address the diverse requirements of light industrial applications and commercial users.

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.

AOS Advanced Oxidation System

Highly effective against bacteria and viruses, the Advanced Oxidation System (AOS) is also well-suited for the decontamination of hard-to-treat organic contaminants such as pharmaceuticals and other micropollutants The AOS can be configured to deliver optimized performance for most water or wastewater treatment applications.

Potable Water Storage Unit: MSU-40

Minimize potable water hauling costs with modular onsite storage units from newterra – the leader in advanced camp water solutions.

NeoTech D328™

The NeoTech D328™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.

VIEWS ON THE LATEST REGS

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What Utilities Should Know About School Lead Data

The Cost Of Waiting: Utilities Face A Narrowing PFAS Compliance Window

For years, the water industry's PFAS conversation centered on monitoring, testing, and regulatory anticipation. Today, that phase is largely over.
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.
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.

MORE WATER INDUSTRY FEATURES

Designing For Harmful Algal Blooms (HABs) In Surface Water Treatment Plants

The Toledo water crisis exposed treatment gaps, highlighting harmful algal blooms as a core design challenge requiring flexible, multi-barrier systems and scenario-based planning.
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.
PFAS Pilots: Strategic Planning To Reduce Risk And Optimize Costs

Learn why piloting PFAS treatment is essential to reduce risk, optimize costs, and ensure compliance—plus the seven key steps to design a pilot that delivers reliable, real-world results.
Filters For Medical Device Reprocessing

Enhance medical device reprocessing with multi-stage filtration that reduces bacteria and contaminants, limits recontamination risk, protects device integrity, and supports safer infection control.
Maximum Quality Control

Precision inspection and compliance-driven processes are essential for manufacturing to help safeguard product quality, support regulatory requirements, and protect patient safety at scale.
Compliance Monitoring Without The Lab Runs: The EPA Method 334.0 Math

Manual grab sampling for chlorine residual compliance burdens operators with excessive drive time and laboratory costs. Adopting continuous, certified online monitoring satisfies regulatory reporting requirements while freeing technical staff for higher-priority operational tasks.
Why Has Ion Exchange Become The PFAS Treatment Of Choice?

Regulated PFAS limits necessitate efficient, long-term treatment strategies. Ion exchange technology offers a high-capacity, small-footprint solution that outperforms traditional media. Learn how selective resins provide a cost-effective path to compliance and simplified utility operations.
Ozone Contactors: The Engineering Variable That Determines Oxidation Success

Ozone system performance hinges on reactor design, not generator size. Efficient mass transfer, hydraulic integrity, and contact time ensure consistent oxidation, reduced energy use, and reliable treatment results.
Accelerating The Seed Train: Enabling N-1 Intensification

Discover how N-1 intensification shortens production timelines and improves cell viability by replacing traditional filtration with automated, low-shear separation techniques to achieve higher seeding densities.
Conflict Of Interest: Implications For Clinical Research Sites

Amid scrutiny of the financial conflicts of interest in biomedical research, new federal rules aim to improve transparency and preserve the integrity of publicly funded research.
Optimization And Scale-Up Of A Plasmid DNA Production Process

Optimizing pDNA production in E. coli requires strategic media selection and scale-up planning. Explore a study that identifies ideal conditions for high-yield manufacturing.
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.
Martin County Saves Millions With leadCAST's Automated Workflows And Statistical Analysis To Tackle LCRR

With the LCRR deadline fast approaching and over 59% of its service lines unverified, Martin County recognized the significant work ahead in preparing to meet the LCRR requirements. The county needed to establish a clear strategy for its compliance program, and to support this effort, it needed an engineering consulting partner with extensive expertise in LCRR.
Nitrosamines: Assessing The Risk To Pharma Products

Nitrosamines are a serious risk in drug products, driven by the presence of secondary amines, conducive conditions, and nitrosating agents. Understanding these factors is key to risk mitigation and patient safety.

Overcoming Excipient Risks And Challenges For Parenteral Formulations

Excipients are essential to parenteral formulations, which help protect APIs, enhance stability, and ensure safety. Learn how strategic excipient selection can optimize drug performance and patient outcomes.
Is Monitoring Of Total Or Free Chlorine A Better Option For Dechlorination Control?

Accurate dechlorination control requires monitoring all residual oxidants that threaten membrane integrity. Total chlorine analysis provides the necessary precision at ultra-low levels, ensuring comprehensive protection against oxidative damage while maintaining reagent stability during intermittent system operations.
Analytical Blind Spots That Derail Microbial Programs Before The Clinic

High refolding yields aren’t enough. Learn how analytical characterization, structural equivalence testing, and optimized fermentation reduce scale-up risk and improve quality.
The Evolution And Impact Of PFAS Regulations

In this article, Transcend will break down the evolution and impact of PFAS regulations over the years while suggesting innovative technology to assist the affected industries.

WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

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