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

WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

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.
What Is The Future Of Source Water Protection? Water utility managers and municipal leaders have long struggled amid the convergence of several threats to public water supplies. During a recent Water Online Live event, I sat with a panel of industry experts to examine the transition from reactive crisis management to a proactive, adaptive resilience framework.
Drinking Water Contaminated With 'Forever Chemicals' During Pregnancy Linked To An Increased Risk Of Childhood Asthma
While most of us are routinely exposed to low levels of PFAS, some communities are exposed to far higher levels from nearby pollution sources. A new study shows that in one of these at-risk communities, children were more likely to develop asthma if their mothers were exposed to very high PFAS levels during pregnancy.
The Pragmatic Shift In Source Water Protection: Moving From Symptom Management To Root-Cause Accountability A shift in how we approach source water protection is long overdue. Currently, we are trapped in a cycle of escalating costs, forced to treat symptoms like algae and invasive weeds expediently with chemicals while the underlying risk in the reservoir compounds. True risk management requires breaking this cycle.
The AWWA Said $2.4 Trillion. It Missed The Compound Interest. Einstein once said of compound interest, "He who understands it, earns it. He who doesn't, pays it." The same logic of compounding applies to the organic sediment accumulating on the floor of your drinking water reservoir. The longer you wait to address it, the more exponentially expensive it becomes to fix.
Designing Resilient PFAS Treatment Strategies For Water Agencies Water agencies across the U.S. are facing a rapidly evolving regulatory landscape for per- and polyfluoroalkyl substances (PFAS) that poses a conundrum: Should they take a cautious or aggressive approach to treating PFAS contamination in their water system?
The Future Of In Situ Chemical Oxidation For Targeted Solvent Destruction
The U.S. EPA’s 2026 trichloroethylene (TCE) compliance deadlines are now forcing a concrete shift toward source-zone destruction. In situ chemical oxidation (ISCO), sequenced with enhanced bioremediation, is proving to be the most credible path to groundwater contaminant rebound mitigation.
When Drinking Water Raises Bigger Questions About Brain Health And Environmental Risk
A new study linking certain groundwater sources to higher Parkinson’s risk underscores a broader question for the water sector: how environmental exposures in drinking water may influence long-term health.
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.

DRINKING WATER PRODUCTS

TOC Reduction

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NeoTech D228™

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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.

Turbidity Filtration: Turbidity Filtration Using Alum

Electromedia® V effectively filters turbid waters at 10 g.p.m. per sq. ft. to produce treated waters having turbidities less than 0.2 NTU

CyanoFluor

CyanoFluor is a dual-channel handheld fluorometer designed for harmful algal bloom monitoring. By measuring chlorophyll-a and phycocyanin simultaneously, it differentiates cyanobacteria from other phytoplankton with precision. Portable, factory calibrated, and easy to use, CyanoFluor supports early detection, rapid assessment, and ongoing monitoring of blooms, protecting ecosystems, aquaculture, and drinking water supplies from the impacts of toxic algae.

DE NORA TETRA DeepBed Tertiary Filtration System

The DE NORA TETRA DeepBed tertiary filtration system is an economical solution for the removal of total suspended solids and total phosphorus.

VIEWS ON THE LATEST REGS

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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What Is A Digital Twin And Why Does It Matter For Water Management?

Digital water twins integrate real-time data to create dynamic simulations of physical networks. This collaborative technology empowers teams to visualize system behavior, predict potential issues, and optimize operations for improved reliability and resource management.
EPA PFAS Drinking Water Standards: Ensuring Safe and Clean Water

In this article, Transcend will highlight the importance of EPA PFAS drinking water standards as well as how they ensure safe and clean water systems. We also provide the opportunity to streamline wastewater design for utilities, engineering consultants, and equipment suppliers.
Q&A: Navigating PFAS In Medical Devices

Explore how PFAS in medical devices pose environmental and health concerns, prompting regulatory scrutiny.
Beyond Meter Reads: Leveraging Temetra For Enhanced Customer Engagement And Conservation

Las Vegas Valley Water District is modernizing conservation efforts with Temetra, using high-resolution meter data to detect leaks sooner, engage customers, and secure water resources amid extreme drought conditions.
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.
What Is Aseptic Processing?

Aseptic processing sterilizes products and packaging separately, then combines them in a sterile environment. See how this method ensures safety, extends shelf life, and protects medicines from contamination.
3 Utilities Turning Wastewater Into Opportunity With Advanced Treatment And Reuse

Read about three of the most pressing wastewater challenges utilities face today and how Stratmoor Hills, Key West Resort Utilities, and Beijing Water Group are using advanced treatment and reuse to overcome them.
EU Annex 1: Building Modern CDMO Sterile Fill/Finish Facilities

A CDMO guide to implementing EU Annex 1 for modern sterile fill/finish facilities, covering cleanroom design, contamination control, utilities, personnel, monitoring, and audit essentials.
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.
Florida Utility Saves 2,080 Man-Hours With Just 5 Sensors

Continuous water quality monitoring helps utilities offset workforce shortages, reclaim thousands of labor hours, improve compliance, and gain real-time insights that enhance system performance and reliability.
Strategies To Win Breakthrough Designation In Rare Disease Programs

Breakthrough designation can unlock faster paths for rare disease therapies. Learn how smart timing, compelling evidence, and early regulatory alignment can turn promising science into accelerated patient impact.
Ozone Formulas And Conversions

Learn key ozone formulas, unit conversions, and measurement standards to accurately calculate generator output, concentration, and dosage for effective system design, performance verification, and safe operation.
Custom Tank Designs That Actively Manage PFAS Mass Transfer Zone (MTZ) — And Why It Matters More Than Ever

As utilities prepare for the pending 4-ppt PFAS drinking water MCL, many are discovering that legacy lead/lag designs—workhorses for decades when treating contaminants in the ppm and ppb range—simply are not optimized for the parts per trillion-level (ppt) precision PFAS demands.
UV Advanced Oxidation For Potable Reuse

Faced with rising water scarcity, advanced facilities are utilizing UV advanced oxidation to destroy persistent chemical micropollutants and achieve stringent pathogen disinfection in a single step, ensuring a highly pure, reliable potable water supply.

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.
Actuators On Aeration Blower Valves Improve Dissolved Oxygen And Increase Overall Process Stability

Discover how installing Beck electric actuators on the aeration blower control valves has improved process stability and plant operations for a South Florida treatment plant.
Hunting An Unexpected mAb Variant With LC‑MS

A tailored LC–MS approach enables sensitive detection and tracking of monoclonal antibody variants, supporting deeper product characterization and better control of quality‑impacting changes.
Back To Basics: Understanding Testing For Process-Related Impurities

Master the fundamentals of identifying and monitoring process-related impurities. Ensure biologic safety and regulatory success by optimizing your analytical strategy.

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