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LATEST CH2M HILL ARTICLES

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Custom Tank Designs That Actively Manage PFAS Mass Transfer Zone (MTZ) — And Why It Matters More Than Ever
As utilities prepare for the pending 4-ppt PFAS drinking water MCL, many are discovering that legacy lead/lag designs—workhorses for decades when treating contaminants in the ppm and ppb range—simply are not optimized for the parts per trillion-level (ppt) precision PFAS demands.  Continue Reading..
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Retrofitting Aging Infrastructure: Seamlessly Integrating Jet Aeration Into Existing Tank Designs
Jet aeration retrofits modernize aging wastewater tanks with minimal downtime, integrating easily into existing basins while delivering long-term reliability, higher oxygen transfer efficiency, and significantly lower lifecycle costs.  Continue Reading..
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The Energy-Mixing Nexus: Achieving Optimal Aeration And Mixing With Minimal Power Consumption
Integrating aeration and mixing through jet aeration enhances oxygen transfer, improves process control, and significantly lowers power consumption—especially when upgraded with advanced Slot Injector technology.  Continue Reading..
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Extending Aeration System Lifespan And Reducing Maintenance With Jet Aeration
Jet aeration delivers decades-long service life with corrosion-resistant materials, clog-resistant design, and simplified maintenance—eliminating basin outages and reducing lifecycle costs compared to fine-bubble diffusers.  Continue Reading..
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Optimizing Aeration For Nutrient Removal: A Deep Dive Into Jet Aeration's Role
Jet aeration improves nutrient removal by delivering superior oxygen transfer, intense mixing, and flexible process control—cutting energy use, enhancing BNR performance, and supporting long-term operational reliability.  Continue Reading..
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A New Approach To Infrastructure Resiliency
Extreme weather and seismic threats are driving a new collaborative approach to infrastructure. By aligning utility needs with academic research and manufacturing innovation, providers can validate resilient technologies and deploy data-backed solutions for long-term reliability.  Continue Reading..
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PFAS In Pregnant Women's Drinking Water Puts Their Babies At Higher Risk, Study Finds
When pregnant women drink water that comes from wells downstream of sites contaminated with PFAS, known as “forever chemicals,” the risks to their babies’ health substantially increase, a new study found. These risks include the chance of low birth weight, preterm birth, and infant mortality.  Continue Reading..
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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.  Continue Reading..
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Advanced Diagnostic Tools For Wastewater Pump Health Assessment
Advanced diagnostic tools are crucial for managing aging wastewater pump infrastructure. Trending diagnostics, ODS modeling, EMA, and MAV enable proactive, data-driven pump health assessments, helping to reduce costs, minimize downtime, and prevent catastrophic failures.  Continue Reading..
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Sealing And Bearing Innovations In Flood Control Pumps
Flood control pumps must perform reliably after long periods of inactivity. Specialized sealing and bearing innovations, like permanently lubricated bearings and double mechanical seals, are critical to ensuring dependable startup and sustained performance in harsh environments.  Continue Reading..

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CH2M HILL NEWS

AqueoUS Vets® Announces Paris Neofotistos As Chief Executive Officer

AqueoUS Vets (AV), is pleased to announce the appointment of Paris Neofotistos as Chief Executive Officer. Paris brings more than 27 years of leadership experience in the municipal and industrial water and wastewater treatment sectors and will leverage his deep industry expertise and proven track record to further strengthen AV’s operational performance, innovation, and growth.

Mellifiq Secures Advanced PFAS Leachate Water Treatment Project

Mellifiq has signed a contract to deliver a project to treat leachate water in Sweden using advanced oxidation and sorption technologies. 

Harris Cyber Policy Initiative Taps Top Hacker To Design New Security Model For Water Utilities

The Harris Cyber Policy Initiative (CPI) today announced that cybersecurity leader and researcher Tarah Wheeler has joined the initiative as Senior Fellow and Board Member, where she will direct research to guide CPI’s development of a first-of-its-kind Managed Security Service Provider (MSSP) model tailored for rural water utilities across the United States.

New Pump/Mixing System Puts Troublesome Train Toilet Waste Pumping Station Back On Track

An innovative mixing solution from Landia has solved a long-standing issue at a troublesome pumping station that receives wastewater from trains in the South of England.

EPA And Army Wrap Up Public Listening Sessions On Proposed Definition Of WOTUS

U.S. Environmental Protection Agency (EPA) and U.S. Department of the Army (Army) have completed a series of listening sessions to hear input from the public on the agencies’ revised definition of “waters of the United States,” or WOTUS.

Garney Breaks Ground On $505.7M South Hillsborough Pipeline, Tampa Bay Water's Largest Pipe Project To Date

Garney, a national water and wastewater contractor with two regional offices in Florida, has broken ground on the South Hillsborough Pipeline, a new 26-mile potable water pipeline with a capacity of 65 million gallons per day (MGD) for Tampa Bay Water.