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LATEST CH2M HILL ARTICLES

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El Niño Intensifies: Collection Systems Should Prepare Now
A strengthening El Niño raises the stakes for sewer and stormwater networks, making monitoring of rainfall, level, and flow before the first major storm a matter of readiness rather than reaction.  Continue Reading..
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Grinding Vs. Screening: How To Select The Best Process For Your Application
Choosing between grinding and screening requires evaluating site constraints, wastewater composition, and downstream treatment needs to balance solids removal, equipment protection, maintenance, and cost.  Continue Reading..
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What Does Calibration Actually Mean For Your Water Quality Instrument?
Calibration is not one process. Its meaning shifts across colorimetric, electrochemical, and amperometric instruments, and applying the wrong expectation to the wrong one can cost time, compliance standing, and accuracy.  Continue Reading..
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Solutions For Safe Drinking Water
Water quality depends on keeping distribution lines moving and monitored. Automatic flushing, connected sampling, pressure management, and leak detection work best together, with two municipal deployments showing the results.  Continue Reading..
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Chloramination: Practical Strategies For Reliable Water Quality
Monochloramine's stability advantage in complex distribution systems depends on precise chemistry and early detection of nitrification, with calibration and documentation standing up to regulatory review.  Continue Reading..
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Turning Dairy Processing Residuals Into Resources For Healthier Soils
The food system depends on productive soil, yet manufacturing leaves behind organic materials that never reach a retail package. For dairy manufacturers, one of those materials is dissolved air flotation sludge, commonly called DAF sludge. When its composition, treatment, and receiving site are properly evaluated, this residual can become a resource for nutrient recovery and soil improvement.  Continue Reading..
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Empowering The Next Generation Of Water Innovators: 2026 Hach Equipment Grant
Professional-grade testing equipment can decide whether a student's water research idea becomes a viable investigation. One grant program pairs high school competitors with professional field tools.  Continue Reading..
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After The Fire: What The 2026 Wildfires And El Niño Could Mean For U.S. Lakes And Reservoirs In 2027
In July, smoke from Canadian wildfires spread across the upper Midwest and Northeast. Now a strengthening El Niño is set to influence the coming winter. Both events matter to lake and reservoir managers because their effects on water quality will continue to emerge long after the skies clear or the El Niño passes.  Continue Reading..
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Why UV-AOP Is Becoming A Cornerstone For Potable Reuse
UV-AOP can provide a critical treatment barrier for potable reuse, while demonstration skids help utilities validate performance under site-specific conditions before committing to full-scale systems.  Continue Reading..
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Particle Size Matters: Distinguishing Densified Sludge From Aerobic Granular Sludge
Particle size helps distinguish DAS from AGS, influencing biological performance, settling, capacity, economics, and which wastewater treatment applications each technology best serves.  Continue Reading..

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CH2M HILL NEWS

New ABC Report Finds More Opportunities To Put Wastewater Plants To Work

A new nationwide survey of U.S. wastewater facilities reveals opportunities to expand the production of renewable energy from wastewater, make greater use of existing digesters, and put more organic waste to productive use.

Endress+Hauser Receives Swiss Manufacturing Award 2026

Endress+Hauser has been honored with the University of St. Gallen’s Swiss Manufacturing Award 2026. The award was presented during the St. Gallen Production Management Conference on 20 October 2026 and recognizes companies that demonstrate exceptional performance in the manufacturing sector. Out of the five finalists, Endress+Hauser convinced the jury with regard to innovation, growth, resilience, employment and business success.

Carollo Engineers Appoints Suzanne Kaufman As Florida Stormwater Lead

Carollo Engineers announced today that Suzanne Kaufman has joined the firm as Florida stormwater lead. Based in Gainesville, Kaufman will expand Carollo's stormwater technical expertise across Florida, helping clients manage flood risk and protect water resources as weather patterns shift

EPA Finalizes Virginia's Coal Combustion Residuals Permit Program

Today, U.S. Environmental Protection Agency (EPA) announced the final approval of the Commonwealth of Virginia’s coal combustion residuals (CCR) permit program. This action will allow the commonwealth, rather than the federal government, to permit CCR disposal in surface impoundments and landfills. This approval is part of EPA’s broader effort to ensure that the CCR program reflects the agency’s commitment to restoring energy dominance, strengthening cooperative federalism, and protecting human health and the environment.

EPA Announces $109 Million WIFIA Loan To Increase Water Supply Reliability In Honolulu, Hawaii

Today, U.S. Environmental Protection Agency (EPA) announced a $109 million Water Infrastructure Finance and Innovation Act (WIFIA) loan to the Honolulu Board of Water Supply, which serves parts of Oahu, Hawaii. This loan will help the Board design and build a large-scale reverse osmosis seawater desalination plant that will provide 1.7 million gallons of water each day to island residents while decreasing pressure on groundwater aquifers. EPA’s WIFIA loans enable communities to make critical investments in clean, safe, and reliable water to help advance EPA’s “Powering the Great American Comeback” initiative. 

Flexible Managed Services Strengthen Weather Resilience

Increasingly unpredictable weather is highlighting the need for greater operational flexibility and accelerating the shift towards managed services, writes Tony Gwynne, leakage solutions director, Ovarro.