DRINKING WATER
Quick-Lock Saves Contractor $225,000
Mechanical point repair offers a cost-effective, efficient alternative to traditional lining for fixing pipe defects. These thin-profile stainless-steel sleeves restore structural integrity and seal leaks quickly, significantly reducing project costs while maintaining optimal flow.
DRINKING WATER CASE STUDIES AND WHITE PAPERS
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Top 10 Considerations When Converting To On-Site Hypochlorite
Transporting pure salt - the raw material needed to generate sodium hypochlorite onsite – is more cost effective, stable, and safer, than transporting and storing bulk sodium hypochlorite, or gaseous/liquid chlorine cylinders from local chemical suppliers. The conversion to on-site hypochlorite generation can be achieved by adhering to these design guidelines.
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Standardizing On-Site Hypochlorite Generation Disinfection Technology In Water And Wastewater Treatment Plants Increases Safety And Eases Operations
In late 2005, the City of Newberg, Oregon, decided to upgrade their water treatment plant disinfection process from gas chlorine to on-site hypochlorite generation (OSHG) in an effort to simplify operations and increase operator safety. The plant produced an average of 2.5 million gallons per day (MGD), with a peak capacity of 5 MGD.
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Keeping The Operator In Focus: The Four Pillars Of Operator Effectiveness
This paper shows how the four pillars of operator effectiveness lead operators to greater awareness, faster response and better decisions.
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![drinking_water_disinfection_tianjin_china_case_study-3]( "Drinking Water Treatment: Tianjin, China")
Drinking Water Treatment: Tianjin, ChinaFavorable reviews of UV technology in wastewater applications influenced Tianjin Economic Development Area (TEDA) Water Supply General Company to investigate the potential of using UV for drinking water applications at one of its water treatment plants.
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![Octave_Ultrasonic_Meter_wFlanges]( "16 Years Of The Octave: A Legacy Of Leadership In Ultrasonic Water Measurement")
16 Years Of The Octave: A Legacy Of Leadership In Ultrasonic Water MeasurementThe Octave Ultrasonic Meter is celebrating 16 years of trusted service, and it’s more than a product milestone. It’s a recognition of the thousands of utilities that have embraced smart water management and chosen a path of long-term value.
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![EZ_Valve_keeps_multi-million-pound_Sellafield_on_track-1]( "EZ VALVE Keeps Multi-Million-Pound Sellafield Project On Track")
EZ VALVE Keeps Multi-Million-Pound Sellafield Project On TrackThe AVT EZ Valve provided an efficient solution at the Sellafield Nuclear Site in Europe, saving valuable time and keeping a multi-million-pound project moving on schedule.
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![GettyImages-1394387101_450_300 (002)]( "Building Trust: How Water Quality Monitoring Can Strengthen Consumer Relationships")
Building Trust: How Water Quality Monitoring Can Strengthen Consumer RelationshipsIn order to reassure consumers that their water is clean and stay ahead of legitimate risks, many water utilities are turning to online water quality monitoring in the distribution system.
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![MDC-Project Brief]( "Insta-Valve 250 Provides Targeted Control Without System Shutdown")
Insta-Valve 250 Provides Targeted Control Without System ShutdownHydra-Stop’s solution allowed targeted control for planned maintenance and repair. MDC is a water utility that serves a densely populated region of Connecticut that also has a significant amount of commercial and industrial facilities. Like so many water utilities within the U.S., MDC has a century-old infrastructure which requires a proactive and preventative maintenance approach.
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![Dothan-Case-Study--feature]( "A Combo Utility Benefits From AMI")
A Combo Utility Benefits From AMIThe City of Dothan, AL, recently turned to Aclara for an advanced metering infrastructure (AMI) solution to support its 31,000 electric and 35,000 water meters. This case study details how the city implemented a single network solution that effectively collects water and electric meter readings and provides the information needed to enhance operations and customer service for city residents.
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![GettyImages-1364760615]( "Turbidity, What It Is And How It's Successfully Mitigated")
Turbidity, What It Is And How It's Successfully MitigatedThis article will clarify the essential aspects of turbidity, how it can affect human health, and how best to measure and mitigate it.
DRINKING WATER APPLICATION NOTES
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Aquafine Ultraviolet Treatment Systems For TOC Reduction1/29/2025
Aquafine TOC reduction units coupled with ion exchange systems or EDI will oxidize trace organics into smaller ionic species, carbon dioxide and water, which are more readily removed by ion exchange resins, EDI, and/or degasifiers.
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Improved Determination Of Volatile Organic Compounds In Water By SPME And GC/MS6/21/2018
The analysis of water for volatile organic compounds is important due to their toxicity. The current methods for this determination lack of sensitivity, selectivity or capability for automation. This paper presents the new ISO 17943 Standard using Solid Phase Microextraction (SPME) and GC/MS. The sample preparation by SPME enables limits of detection and easy automation of the whole method. GC/MS provides the required sensitivity and selectivity. This ISO Standard was validated by an interlaboratory trial, which results confirm the outstanding performance for this method.
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Bringing Efficiency And New Confidence To BOD₅ Analysis2/4/2013
Biochemical Oxygen Demand (BOD) analysis is the test everyone loves to hate—and for compelling reasons.
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Application Note: Water Flows From The Golden Hills Of California1/20/2010Each morning John Johnson drives the few miles from his smalltown home in northern California to the Center at Pardee Reservoir. Nestled among the foothills of the Sierra Nevada mountain range, the reservoir is a long 100 miles away from San Francisco Bay. By YSI
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Determination Of Polar Pesticide Residues In Food Of Plant Origin, By And Automate QuPPe Solution9/29/2014
The QuEChERS (Quick-Easy-Cheap-Effective-Rugged-Safe) sample extraction method was developed for the determination of pesticide residues in agricultural commodities.
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LC-MS Analysis Of PFAS Compounds In EPA 533 After Supelclean™ ENVI-WAX SPE Cleanup8/29/2022
This application note demonstrates the extraction and subsequent analysis of 25 related analytes from water using Supelco SPE cartridges.
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What Are You Doing To My Pipe: Can PVC Pipe Be Loaded?4/13/2021
The argument has been used that PVC pipe is delicate and can’t be subjected to any kind of loading. In EBAA's years of testing we have found that is not the case at all. PVC can take an extreme amount of strain.
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Application Note: Continuous Monitoring Of Drinking Water Provides Assurance Of Safety9/28/2005A water utility in Ohio wanted to learn more about the variability of water quality parameters such as pH, ORP, turbidity, and chlorine. Previously, most of these parameters had been measured by spot sampling protocols with only a few measurements during a daily period. In order to more accurately assess the water variability, the utility used a YSI 6920DW Drinking Water Multiprobe
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TOC Monitoring In Process Return Condensate4/23/2021
Industrial power plants or co-generation power plants utilize steam for industrial purposes other than power production.
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Application Note: Troubleshooting A pH Electrode1/26/2011
Many factors affect performance of a pH electrode. When performance degrades, it is always a challenge for the analyst to identify the cause. Common troubleshooting procedures, which include evaluation of slope, electrode drift, time response, and accuracy, take considerable time. By Thermo Fisher Scientific
DRINKING WATER PRODUCTS
The Ultrameter II is a prime example of how high-tech engineering can greatly simplify and streamline a task. Whether in the lab, industrial plant, or in a remote field location, there are only a few simple steps to take a reading.
At De Nora, we are strongly committed to providing aftersales and service support for our entire equipmen portfolio and similar competitive equipment.
The OPTIFLUX 5100 is an electromagnetic flowmeter (EMF) with a high-tech ceramic measuring tube for demanding process flows. It is particularly suited for applications in the chemical processing industry, the minerals and mining sector as well as in any other sectors of industry where highly aggressive or abrasive liquids occur. The EMF is the ideal solution for harsh process conditions with temperatures up to +180°C / +356°F, aggressive chemicals and solid content (up to 10%).
With all the environmental challenges facing us today, doing everything we can to conserve and preserve our water is imperative. As you know, tens of thousands of leaks go undetected, equating to a staggering 6 billion gallons of water loss daily in the United States. To help combat this water loss, we have developed a program that provides you with the tools and knowledge to help find those undetected leaks. Our program is Leak Detection Pilot Program, and we want to partner with you.
As the latest addition to Hydra-Stop’s award-winning Insta-Valve family of solutions, customers with 20- and 24-inch pipes can now benefit from the only insertable gate valve with the superior performance and reliability you would expect from the Insta-Valve name.
Xylem’s offering of granular activated carbons includes a versatile group of adsorbents designed to meet your needs for air and water compliance, wastewater treatment, remediation, and water purification. As an exclusive supplier of AquaCarb® and VoCarb® carbons, among many others, we provide premium virgin, activated, and reactivated carbons sourced from high-quality bituminous coal, coconut shell, and anthracite coal, suitable for both liquid and vapor phase applications.
Our activated carbons undergo rigorous quality testing at a state-certified environmental and carbon testing laboratory. Our application experts can help you select the right carbon, enabling you to improve performance, extend time between exchanges, and minimize operating costs.
We maintain a large inventory of high-quality carbons for quick selection and delivery. We can deliver carbon to you in:
- Supersacks
- Paper bags
- Fiber drums
LATEST INSIGHTS ON DRINKING WATER
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![wastewater ecological damage-GettyImages-2231956262]( "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.
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![River water pollution, Ecological-GettyImages-1215336784]( "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. -
![snowystream-Getty-521971897]( "Winter's Alarmingly Low Snowpack Offers A Glimpse Of The Changing Rhythm Of Water In The Western U.S.")
The April 1 snowpack measurement has long been the single most important number in western water management, considered a strong proxy for how much water the mountains are holding in reserve. But in 2026, that savings account has been woefully deficient. -
![ColoradoRiverDam_Getty-1280300802]( "Why Colorado River Negotiations Stalled, And How They Could Resume With The Possibility Of Agreement")
Why Colorado River Negotiations Stalled, And How They Could Resume With The Possibility Of AgreementThe five most common sources of conflict between people are values, data, relationships, interests, and structure. The current Colorado River negotiations include all five. -
![Water droplets, PFAS, Forever chemical water contamination-GettyImages-2173433890]( "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? -
![Oil spill clean up-GettyImages-1369921282]( "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.
DRINKING WATER VIDEOS
Discover how integrated membrane system designs can maximize the operating stability of EDI systems and reduce mixed bed regeneration frequency.
Take a quick tour of the Blue-White factory in Huntington Beach, California, where skilled employees are busy building chemical dosing pumps, complete metering systems and flow measurement equipment.
In this episode of Ozone Talks, host Sannel Patel takes viewers deep inside Pinnacle Ozone Solutions’ cutting-edge ozone generation technology. Joined by senior engineer Eric Francis and technician Dayton Julius, the discussion centers around the Quad Block ozone cell—a patented, modular system redefining ozone production through innovation, precision, and durability.
ABOUT DRINKING WATER
In most developed countries, drinking water is regulated to ensure that it meets drinking water quality standards. In the U.S., the Environmental Protection Agency (EPA) administers these standards under the Safe Drinking Water Act (SDWA).
Drinking water considerations can be divided into three core areas of concern:
- Source water for a community’s drinking water supply
- Drinking water treatment of source water
- Distribution of treated drinking water to consumers
Drinking Water Sources
Source water access is imperative to human survival. Sources may include groundwater from aquifers, surface water from rivers and streams and seawater through a desalination process. Direct or indirect water reuse is also growing in popularity in communities with limited access to sources of traditional surface or groundwater.
Source water scarcity is a growing concern as populations grow and move to warmer, less aqueous climates; climatic changes take place and industrial and agricultural processes compete with the public’s need for water. The scarcity of water supply and water conservation are major focuses of the American Water Works Association.
Drinking Water Treatment
Drinking Water Treatment involves the removal of pathogens and other contaminants from source water in order to make it safe for humans to consume. Treatment of public drinking water is mandated by the Environmental Protection Agency (EPA) in the U.S. Common examples of contaminants that need to be treated and removed from water before it is considered potable are microorganisms, disinfectants, disinfection byproducts, inorganic chemicals, organic chemicals and radionuclides.
There are a variety of technologies and processes that can be used for contaminant removal and the removal of pathogens to decontaminate or treat water in a drinking water treatment plant before the clean water is pumped into the water distribution system for consumption.
The first stage in treating drinking water is often called pretreatment and involves screens to remove large debris and objects from the water supply. Aeration can also be used in the pretreatment phase. By mixing air and water, unwanted gases and minerals are removed and the water improves in color, taste and odor.
The second stage in the drinking water treatment process involves coagulation and flocculation. A coagulating agent is added to the water which causes suspended particles to stick together into clumps of material called floc. In sedimentation basins, the heavier floc separates from the water supply and sinks to form sludge, allowing the less turbid water to continue through the process.
During the filtration stage, smaller particles not removed by flocculation are removed from the treated water by running the water through a series of filters. Filter media can include sand, granulated carbon or manufactured membranes. Filtration using reverse osmosis membranes is a critical component of removing salt particles where desalination is being used to treat brackish water or seawater into drinking water.
Following filtration, the water is disinfected to kill or disable any microbes or viruses that could make the consumer sick. The most traditional disinfection method for treating drinking water uses chlorine or chloramines. However, new drinking water disinfection methods are constantly coming to market. Two disinfection methods that have been gaining traction use ozone and ultra-violet (UV) light to disinfect the water supply.
Drinking Water Distribution
Drinking water distribution involves the management of flow of the treated water to the consumer. By some estimates, up to 30% of treated water fails to reach the consumer. This water, often called non-revenue water, escapes from the distribution system through leaks in pipelines and joints, and in extreme cases through water main breaks.
A public water authority manages drinking water distribution through a network of pipes, pumps and valves and monitors that flow using flow, level and pressure measurement sensors and equipment.
Water meters and metering systems such as automatic meter reading (AMR) and advanced metering infrastructure (AMI) allows a water utility to assess a consumer’s water use and charge them for the correct amount of water they have consumed.