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

WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

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, standardised, 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.
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.

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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

NeoTech CU-4 X™

The NeoTech CU4-X™ UV Water Treatment Control Interface is a remote and compact master controller capable of managing up to four NeoTech ultraviolet water treatment chambers independently and simultaneously.

Disinfection Series

The NeoTech Aqua Disinfection Series is specially designed to disinfect water and is an essential component in advanced oxidation processes.

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.

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.

Real-Time Water Quality Data For Agriculture

We arm farmers with mission-critical water data to help enhance crop yield and taste. KETOS delivers valuable insights for fluctuations in deficiency and toxicity.

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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Hot Springs Combats Aging Infrastructure Challenges With Xylem Digital Solutions

The City of Hot Springs, Arkansas knows the challenges of dealing with aging infrastructure well. The city’s 143-year-old system covers 923 miles of water mains in rocky terrain, making it difficult to detect leaks. That is why the utility’s water department decided to act.
How Advanced Biological Technologies Overcome Complex Wastewater Treatment Challenges In The Oil And Gas Sector

This white paper explores how advanced biological technologies — including MBBR, IFAS, SBR, and MBR systems — are transforming wastewater management in this sector.
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 With Mesoporous Silica

Poor solubility of active pharmaceutical ingredients can hinder drug effectiveness. Learn how innovative formulation strategies enhance solubility and bioavailability to improve therapeutic outcomes for challenging drug candidates.
Controlling mAb Aggregates In Chromatography Process Development

Antibody aggregation remains a critical downstream challenge, particularly for complex modalities. Explore why aggregates form, why they matter, and how chromatographic strategies can help reduce risk.
Loudoun County Deploys Acoustic Leak Detection & Recoups Cost With Savings In NRW

Advanced acoustic sensors help growing utilities identify hidden leaks and prevent costly pipe bursts. By shifting from reactive to planned repairs, municipalities can significantly reduce non-revenue water loss and recoup technology investments through operational savings.
Mixing It Up: How Active Tank Mixers Help Rehabilitate Aging Water Systems

Aging water storage tanks face stratification and stagnation, threatening water quality. Active mixing ensures uniform disinfectant distribution, reduces flushing, and improves system reliability and regulatory compliance.
Performance Test Services For UV Advanced Oxidation Systems

UV AOP performance verification requires a robust test matrix covering design, operating, and control conditions. This process includes on-site execution, sample analysis, and troubleshooting to achieve successful regulatory approval.
Case Study: Groundwater DWTP (AK) - DEXSORB Full-Scale

A DWTP client in Alaska detected elevated PFAS contamination levels in two groundwater wells supplying drinking water to 85 service connections. PFAS concentrations are provided in Table 1, where combined concentration of EPA PFAS6 was detected at 490 to 810 ppt.
Eliminating Chlorine Sensor Pain Points With New Technology

Next-generation chlorine sensors eliminate the need for reagents and membranes, while offering flow-independent, multi-parameter, self-cleaning operation. This reduces maintenance and enhances monitoring accuracy.
2025 Clinical Trial Payment Tax Implications Explained

Flat-rate clinical trial payments are often taxable in the U.S., while reimbursements are not. Unclear tax rules can impact participant trust, site communication, and trial retention.
How Blast Freezing Affects The Quality Of Bottled Drug Substance: Test Results And Insights

Uneven ice formation during bottle freezing creates a "Volcano Effect," pushing solutes into highly concentrated zones. This test-based study explains this risk to drug substance quality.
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.
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.

In The Age Of PFAS, Water Treatment Designers Can't Afford To Guess

Relying on assumptions when designing water treatment systems creates unnecessary financial and operational risks. Adopting predictive modeling and data-driven testing provides the precise, actionable insights required to optimize performance, manage costs, and ensure compliance.
Cracking The Reproducibility Code: Sera Is A Key Component

Struggling with reproducible cell culture results? Sera variability is a major culprit. Learn how to choose the right sera, test lots, and stock up to ensure consistency and boost reproducibility.
Multi-Contaminant Removal With Granular Activated Carbon (GAC) In Drinking Water Filtration

Learn why the U.S. EPA has recognized granular activated carbon (GAC) as a best available technology (BAT) for a wide range of substances within the same system.
Analytics: A Referee For The Tug-Of-War Between MSC-EVs' Nature And Nurture

Like a referee in a contest, advanced analytical methods are essential to mediate the push and pull of different factors influencing therapeutic efficacy.

WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

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