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

WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

Pretreatment Systems Enable Complete And More Economical PFAS Solutions
For operators looking to optimize their PFAS removal systems, controlling the presence of dissolved organic carbon (DOC) offers an approach to minimizing operational costs due to granular activated carbon (GAC) reactivation and ion exchange media change-out.
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?

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High Capacity BABA Compliant Filter Housing

Harmsco has developed a higher capacity filter housing that is BABA compliant, and it is available in a 3X, as well as a 5X model.

Municipal Real-Time Water Quality Monitoring

We arm municipalities with actionable data necessary to make informed decisions about water quality in their communities

ReFlex Max™ Reverse Osmosis

Desalitech ReFlex Max Reverse Osmosis systems are highly efficient, typically reducing brine waste by 50% to 75% and energy consumption by up to 35%.

NeoTech D228™

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

GettyImages-1442124623 spring water, flowing water, groundwater

UV Advanced Oxidation For Groundwater Remediation

Industrial pollution increasingly threatens clean groundwater. Learn how UV advanced oxidation permanently destroys resilient micropollutants like 1,4-dioxane and VOCs at the molecular level, while simultaneously providing robust pathogen disinfection without chemical byproducts.

DE NORA TETRA™ LP Block™ Dual Parallel Lateral Underdrain

In municipal drinking water applications or pre-treatment for desalination plants using gravity filters, the filter underdrain is one of the most important components contributing to overall system performance and operation — whether a new filter design or retrofitting an existing filter.

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child drinking from water fountain-GettyImages-908165614

What Utilities Should Know About School Lead Data

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.
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.

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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.
UV Advanced Oxidation For Groundwater Remediation

Industrial pollution increasingly threatens clean groundwater. Learn how UV advanced oxidation permanently destroys resilient micropollutants like 1,4-dioxane and VOCs at the molecular level, while simultaneously providing robust pathogen disinfection without chemical byproducts.
Village Of Lombard's Success Story: Proactively Managing Community Response With Customer Request Sampling

How one utility got ahead of customer request sampling instead of falling behind on it.
Color Consistency In UHMWPE Medical Textiles

Color consistency improves surgical visibility, differentiation, and workflow efficiency, requiring medical textiles that deliver strength, compliance, and reliable quality in every color.
Recent Updates To The Declaration Of Helsinki Affecting Clinical Trials

The World Medical Association (WMA) has announced a significant, rare update to its cornerstone ethical document, the Declaration of Helsinki, which guides medical research involving human participants.
Restoring Groundwater Supplies Through Advanced Contaminant Removal

When industrial plumes compromise critical aquifers, advanced UV-oxidation processes permanently destroy highly carcinogenic NDMA and resilient 1,4-dioxane, restoring millions of gallons of daily drinking water while reducing facility energy consumption by over eighty percent.
Data Centers, Water Reuse, And Ozone: Engineering Treatment Systems For The AI Infrastructure Boom

Explore how ozone-based treatment supports data center water reuse by controlling biofilm, organics, metals, and microbial risks while reducing freshwater demand.
A Strategic Overview Of Fc Engineering

Explore how Fc engineering transforms antibodies into precise therapeutic tools by modulating immune effector functions and extending half-life to improve patient outcomes and overcome complex clinical challenges.
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.
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.
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.
A Risk-Based Approach To Plasmid DNA And mRNA Process Development

Balancing robust analytics and clinical readiness is key for early-phase pDNA and mRNA therapeutics amid structural complexity and regulatory challenges.
PPC Filters Positively Charged, Double Layered PES Membrane

Boost sterile filtration performance with dual-layer membranes and charge-based capture for more effective contaminant removal and reliable results.
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.

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.
Size Matters: Mastering Size Exclusion For Oligos

Learn how to separate molecules strictly by size, effectively remove salts, and select the correct pore specifications for a gentle, non-destructive purification workflow.
AEC PFAS Removal System Reduces PFAS Contamination In New Jersey

This case study demonstrates the effectiveness of a new technology for removing PFAS from well water to below the EPA’s detection limits.
Analytical Blind Spots That Derail Microbial Programs Before The Clinic

High refolding yields aren’t enough. Learn how analytical characterization, structural equivalence testing, and optimized fermentation reduce scale-up risk and improve quality.

WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

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