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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Cloth Media Filtration Removes Coal Ash And Coal Fines At Power Plants

Coal-fired power plants generate coal fines and coal ash from a number of sources, including coal combustion residuals (CCR), particularly fly and bottom ash from coal furnaces, and coal pile runoff during rain events. In support of an industry-wide effort to reduce, improve, and remove coal ash ponds, a variety of technologies have been tested and employed. Read the full application note to learn more.

PFAS HPLC Column

The new Ascentis® Express PFAS HPLC column, with its Fused-Core technology and a particle size of 2.7 μm, delivers fast and high-resolution separations with excellent selectivity, peak shape, and necessary retention to perform in EPA methods 537.1, 533 and 8327.

Emerging Pollutants: The Role Of Activated Carbons

The presence of active pharmaceutical ingredients, radio-opaque substances and endocrine disrupting chemicals in raw water sources is a relatively new emerging issue in relation to drinking water quality. However, the influence of pollutants on health and general well-being is becoming apparent with the incidence of carcinoma increasing and fertility rates being affected. A solution for the efficient removal of these substances from water use by production sites is required.

PFAS Testing Program

There are over 4,500 compounds currently classified as PFAS compounds. BioLargo's PFAS treatment is customized to the water to reduce energy, breakthrough, waste products, and operation and maintenance costs.

Application Note: Desalination Plants: YSI Instruments Monitor Flow & Water Quality At Multiple Stages

Desalination is the process of removing salt from sea water or brackish river or groundwater to make potable water. By YSI

NeoTech D228™

The NeoTech D228™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.

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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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Measuring Scanning Motion Flatness With AFM

Learn how scanners used for high resolution metrology measurements should be designed and tested for flatness of motion, particularly for atomic force microscopy (AFM).
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.
Advancing mRNA Vaccines and Therapeutics Through IVT Process Development

An optimized in vitro transcription (IVT) platform enables scalable, high-yield, and cost-efficient mRNA therapeutic production by leveraging data-driven process optimization and enzyme innovation to overcome key manufacturing challenges.
PFAS Treatment: Tackling "Forever Chemicals" In Our Environment

This guide delves into the history, widespread applications, and evolving strategies to understand and mitigate the impacts of PFAS on health and ecosystems.
APOEε4: Why Alzheimer's "Prophet" Struggles To Become A Therapeutic "Savior"

Explore the technical hurdles of APOE-targeted development and the precision tools—including target proteins and pre-formed fibrils (PFFs)—required to bridge the gap from risk identification to commercial success.
Identifying Contaminants Of Concern

In this article, we outline the sources, occurrence, known health issues, and mitigation options for specific contaminants.
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.
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.
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.
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.
Double, Double, Experts Huddle, Cells And Bioprocess Bubble

Biomanufacturing leaders unite to optimize exosome/EV production. Explore their combined upstream/downstream approach for optimized cell culture, purification, and quality control.
Designing For What's Next: Futureproofing For PFAS

PFAS rules are shifting fast. Learn how utilities can futureproof treatment strategies with flexible designs, smart staging, and emerging technologies—avoiding stranded assets and staying ahead of tomorrow’s regulations.
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.
1,4-Dioxane And Advanced Oxidation: Designing Treatment Systems Around Radical Chemistry

Learn why advanced oxidation processes are critical for treating 1,4-dioxane and how ozone-based systems can improve contaminant destruction and water quality.

Understanding Adeno-Associated Virus Vector Impurities

AAV vectors hold promise for gene therapy, but removing product-related impurities remains a challenge. Learn how cell line development and process optimization are advancing rAAV production.
Navigating EPA Surface Water Treatment Rules In 2026 And Beyond

Single-future design assumptions are no longer sufficient. See what scenario modelling reveals about building treatment infrastructure that performs across decades of uncertainty.
Peace River Manasota Regional Water Supply Authority Uses Powdered Activated Carbon To Ensure High Quality Drinking Water

Founded in 1982, Peace River Manasota Regional Water Supply Authority supplies drinking water to a region of approximately one million people. Its surface water treatment plant draws water from the Peace River to a reservoir and treats it to drinking water standards at the rate of about 31 million gallons a day.
Oligonucleotide Purification And Synthesis

Examine how a 21‑mer oligo was synthesized and purified through systematic resin screening, method optimization, and successful scale‑up to build reliable, high‑purity chromatography workflows.

WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

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