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

WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

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?
The Devastating Legacy Of Algaecides: Why The Quick Fix Is Failing Our Lakes As warmer months approach, water management professionals must confront the compounding consequences of biocidal algae treatments.

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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.

MoTreat: Mobile Water Pre-Treatment System

MoTreat provides a mobile solution to treat flowback and produced water on-site at the well pad area to yield water with minimal total suspended solids (TSS) which enables recycle and reuse without the need for costly trucking to off-site treatment facilities.

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.

Electrochemical Nano Diffusion (END)

Based on proven electrodialysis reversal (EDR) technology, the END® system transforms two key components of traditional EDR to deliver maximum recovery with minimum energy consumption in numerous brackish water treatment applications.

UV Technology Offers Solution For Emerging Water Crisis

Many are turning to UV as an effective barrier to enable the reuse of wastewater, for indirect reuse, and aquifer recharge.

Aria FAST Mobile Water Treatment

Aria FAST mobile water units deliver the water you need, when and where you need it. Our mobile systems are easily installed and produce highquality water in as little as four hours after utility connections are complete.

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PFAS Label on hundred dollar bill-GettyImages-2193126716

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

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.
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.

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Tips For Better eCOA Experiences From Medable's Patient Caregiver Network

Hear from patients and caregivers across various therapeutic areas as they offer tips on improving the clinical trial experience.
Keeping mAb Aggregation Low During The Final UF/DF Step

mAb aggregation can arise from molecular properties, process conditions, and equipment‑driven stress. Learn where aggregation risk increases across downstream processing and formulation.
Innovation In Filtration

Filtration removes contaminants to ensure safety and is essential in various applications, from lab-scale tasks to GMP production. Explore how its simplicity and reliability make it indispensable.
5 Misconceptions About PFAS Removal Technologies

This article will explore five common misconceptions about GAC and IX technologies for PFAS removal, helping utilities choose effective, site-specific treatment strategies for contaminated drinking water.
Overcoming Scale-Up Challenges In iPSC Production: A Joint Investigation

Discover how new processing methods tackle challenges in large-scale stem cell production and how automated, low-shear processing maintains cell health and pluripotency across production scales.
Product-Wet Integrity Testing: Risk-Based Strategies

When standard water‑based integrity testing falls short, product‑wet approaches can offer a more representative alternative. Learn how risk‑based strategies are used to establish reliable test limits.
Demand-Based Flushing Using AMI And Water Quality Sensors

Improve efficiency and water quality with demand-based flushing. The integration of sensors and smart networks allows utilities to remotely monitor and optimize flushing cycles.
Optimizing Ozone Systems For Bromate Control And Water Quality Enhancement In High-Bromide Groundwater Treatment

Learn how utilities can control bromate formation, optimize ozone treatment performance, and achieve regulatory compliance through improved monitoring, hydraulics, and system design.
Mass Transfer Efficiency: The Most Important Metric In Ozone System Design

Ozone output doesn’t guarantee performance. Learn how mass transfer efficiency determines how much ozone dissolves, drives treatment results, and impacts energy use and system design.
Filtration: The Overlooked Enabler Of Process Intensification

Process intensification depends on more than facility changes. Smarter choices can help improve yield, throughput, and sustainability, turning an often-overlooked step into a meaningful contributor.
Optimising Coagulation And Flocculation Systems In Surface Water Facilities

Coagulation and flocculation remain essential but increasingly sensitive processes, requiring flexible design and real-time optimisation to maintain performance across widening source water variability.
Elevating Downstream Process Development With Real-Time Data Monitoring

Learn how real-time monitoring with PAT enhances process control, shortens development timelines, and supports the shift toward continuous manufacturing in biopharmaceutical production.
The Active Control Program For Advanced UV Oxidation

This application note will explore how active control programs lower operational costs of compliant contaminant removal.
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.

LC-UV-Based Synthetic Peptide Impurity Tracking And Reporting

Explore a UPLC-UV method using Empower 3 Software to assess synthetic peptide purity. Learn how integrated tools streamline impurity tracking, data reporting, and compliance in peptide analysis workflows.
How High-Performing Trials Operationalize Health Equity Early

Explore how embedding inclusion early in clinical development enhances enrollment, strengthens data integrity, and improves outcomes, especially in oncology and rare disease trials.
How Climate Change Is Reshaping Surface Water Treatment Plant Design

Climate change is expanding source water variability beyond historical limits, forcing treatment plants to design for wider conditions—and making digital planning essential for resilient infrastructure decisions.
ISO 18562 Series 2024: Essential Updates And Testing Requirements

Taking a proactive approach to compliance can help minimize regulatory risks, avoid submission delays, and ensure continued market access.

WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

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