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

NeoTech D228™

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

Potable Water Treatment Large Train System: PWT 500

For large camps with populations expected to exceed 2,000 people, newterra’s modular PWT-500 Potable Water Treatment Large Train System employs 40' containers dedicated to a specific, complimentary treatment process (e.g. greensand filtration, nanofiltration, etc.)

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

BioBarrier® Membrane BioReactor (MBR) & HSMBR

Bio-Microbics introduces a new generation of wastewater treatment solutions, the BioBarrier® HSMBR® (High Strength Membrane Bioreactor), to help meet the increasingly stringent needs of specialized applications. The membranes and processes used in this advanced system act as an impenetrable physical barrier for nearly all common pollutants found in wastewater today. The advanced technology offers the highest quality effluent possible on the market. The BioBarrier® MBR was the first system to be approved for water reuse (NSF/ANSI Std 350, class R) by the NSF (National Sanitation Foundation) International.

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.

Reducing And Reusing Water In Steel Manufacturing

The art of manufacturing steel for industries is well over 100 years old. Within this time, the steel business has fulfilled consumer needs, including construction, transportation, and manufacturing. The steel manufacturing process is quite intensive as it requires a lot of water to cool down the application. Steel plants constantly look for strategies that can help sustain the steel for a longer time by efficiently improving water and energy consumption.

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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Securing Sponsor Reimbursement For CRIO Fees

Gain sponsor approval by positioning technology as key to streamlined workflows, compliance, and patient safety — reducing risk and improving collaboration. Explore strategies now.
Test Kit Management: The Hidden Weak Point In Your Visual Inspection Program

A proper test kit management program is no longer a “nice-to-have”—it’s a compliance necessity. Without a structured system, you risk inspector drift, failed audits, and errors in batch release.
A Year Of Reflection And Preparation

The Trial Master File (TMF) landscape in 2025 will require companies to stay attuned to the evolving ICH E6(R3) guidelines and the full implementation of the CTIS.
Covalent Warhead Reactivity: A New Look At GSH Reactivity Assays

Understanding covalent warhead kinetics is key to reducing safety risks early in discovery. Learn about a new approach to GSH‑based measurements that offers clearer predictors of toxicity.
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.
Clean Water Even During Disaster: Why U.S. Pipe Ductile Iron Pipe Is The Smart Choice For Public Health And Safety

Infrastructure must endure disasters to protect public health. Learn why ductile iron pipe offers fire resistance, seismic stability, and ensures clean, chemical-free water delivery when it is needed most.
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.
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.
Charting The Course: Q&A With Calgon Carbon's Technical Director, Dr. Angela Rodriguez

Calgon Carbon’s Dr. Angela Rodriguez shares insights on PFAS treatment, regulatory readiness, sustainability, and how innovative carbon technologies help utilities balance compliance, cost control, and environmental goals.
GeoTree - First Aqueduct Water Pipeline Rehabilitated With GeoSpray Geopolymer For SDCWA

Critical water tunnels require efficient structural renewal to meet strict shutdown schedules. Certified geopolymer mortar provides a cost-effective, high-strength solution that eliminates groundwater infiltration and improves water quality while ensuring a 70-year service life for essential aqueduct systems.
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.
Practical Tips For Maintaining Healthy Cell Cultures

Humidity is a critical yet often overlooked factor in cell culture. Learn how it impacts cell viability and discover practical strategies to maintain optimal conditions for reliable results.
MBR vs. Conventional: Why Operator Experience Comes Down To Design, Not Membranes

This article isn’t about the theoretical benefits of MBR technology. It’s about what actually impacts day-to-day MBR operation—and what makes an MBR plant feel intuitive, stable, and predictable… or frustratingly complex.
Scenario Modelling For Surface Water Treatment: Why It Matters More Than Ever

Single-future design assumptions are no longer sufficient. See what scenario modelling reveals about building treatment infrastructure that performs across decades of uncertainty.

Proprietary Reactivation Study Demonstrates PFAS Removal And Destruction Expertise

Thermal reactivation of granular activated carbon is a proven and scalable method to achieve >99.9% destruction removal efficiency for PFAS. This process fully restores the carbon for reuse, providing a sustainable solution that breaks the cycle of "forever chemicals."
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.
The New Imperative For Water Treatment: A Shift From Compliance To Efficiency

As water scarcity and energy costs rise, new ultrafiltration membrane technologies deliver higher flux, longer lifespan, and reduced fouling—turning water treatment from a compliance task into an efficiency opportunity.
Ozone Vs. UV-AOP: Choosing The Right Path For Advanced Water Treatment

Ozone and UV-AOP each offer powerful contaminant removal for drinking water, wastewater, and reuse applications. Their unique strengths—and potential synergy—help utilities meet diverse treatment goals efficiently.

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