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LATEST CH2M HILL ARTICLES

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The Role Of Turbine Flow Meters In Wastewater Treatment Plants
Wastewater plants are made up of a series of interconnected processes, each one dependent on accurate data. Turbine flow meters can be installed at several stages to provide operators with real-time, trustworthy flow information.  Continue Reading..
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Constant vs. Proportional Diffusivity In RSSCT: Choosing The Right Model For GAC Performance Testing
When designing adsorption systems for PFAS removal, utilities and engineers increasingly rely on RSSCTs (Rapid Small-Scale Column Tests) to compare the performance of granular activated carbon (GAC) or other sorbents. One often overlooked yet critical assumption in RSSCT modeling is the choice between constant diffusivity and proportional diffusivity. Though both approaches are valid, selecting the right model can significantly impact how well...  Continue Reading..
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Harnessing The Power Of Oxidation-Reduction Potential For Smarter Wastewater Management
“Potential” is in the name. Here’s what wastewater managers should know about both the benefits and challenges of ORP as an agent of process control.  Continue Reading..
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Common Misconceptions Are Keeping Lakes "Sick"
Long-held misconceptions about lake management fuel the intensity and recurrence of harmful algal blooms.  Continue Reading..
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Converging Challenges, Unified Solutions: How Three Overlapping Trends Are Shaping Public Water
With the right help, coping with workforce upheaval, the digital transition, and asset management can be an opportunity.  Continue Reading..
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A Comprehensive Guide To Phosphate Feed System Design For Drinking Water Applications
Phosphate dosing systems are critical for corrosion control, and increasingly important under the mandate of Lead and Copper Rule Improvements.  Continue Reading..
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Interoperability Unlocked: How Connected Systems Will Power Water's Future
The full potential of smart water infrastructure is within reach — if our digital systems work together and share critical data.  Continue Reading..
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Smarter Pumps, Lower Emissions: The Digital Reinvention Of San Jose Water
Pumps are power-hungry and thus expensive to run, but San Jose Water shows how data-driven technologies and strategies can bring the cost down for utilities.  Continue Reading..
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AI Has A Hidden Water Cost — Here's How To Calculate Yours
Artificial intelligence systems are thirsty, consuming as much as 500 milliliters of water — a single-serving water bottle — for each short conversation a user has with the GPT-3 version of OpenAI’s ChatGPT system. They use roughly the same amount of water to draft a 100-word email message.  Continue Reading..
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Megadroughts Are Here To Stay, And U.S. Water Utilities Need To Adapt
Researchers warn that California and other states affected by megadroughts — periods of drought lasting 20+ years — will have to accept this as the new normal. That means rethinking the water cycle and finding new, more sustainable water sources.  Continue Reading..

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De Nora Launches SORB FX Pak: Compact PFAS Treatment System For Small And Rural Water Systems

Industrie De Nora, an Italian multinational company listed on the Euronext Milan which specializes in sustainable electrochemical technologies and in the emerging green hydrogen industry, has launched SORB FX Pak, an affordable contaminant removal system, designed exclusively for small or rural systems. 

Carollo Engineers' Dr. Graham Juby Joins Elite Group Of WEF Fellows

Carollo Engineers, North America’s premier water engineering and consulting firm, today announced Vice President Dr. Graham Juby has been made a Fellow of the Water Environment Federation (WEF).

EPA Grants Arizona Primacy To Protect Underground Water Resources

Today, U.S. Environmental Protection Agency (EPA) announced a final rule approving the State of Arizona’s request to administer all classes of underground injection wells under the Safe Drinking Water Act (SDWA).

AMWA Submits Letter In Support Of EPA Science Advisory Board Candidates

Last week, AMWA submitted a letter of recommendation for four subject matter experts from member utilities to serve on EPA’s Science Advisory Board: Daniel Gerrity of Southern Nevada Water Authority, Chris Moody and Brian Redder of Fairfax Water, and John Norton of Great Lakes Water Authority.

130+ Strategies For Resilient Rural Water And Sanitation Across The United States

A new report released today by the Pacific Institute, a nonpartisan water think tank, outlines over 130 actionable strategies for rural communities across the United States to strengthen the climate resilience of water and sanitation systems.

NORIT NSF-Certified Reactivation Facility Validates 99.98% PFAS Destruction

NORIT Activated Carbon (NORIT), a global leader in purification technologies, has validated that its thermal reactivation process is capable of consistently achieving 99.98% destruction of PFAS compounds in spent granular activated carbon (GAC) from municipal water treatment applications.