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LATEST CH2M HILL ARTICLES

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The Best Test Is The Test You Run
What plant operators really want from field measurement tools, and why so many good methods end up on the shelf.  Continue Reading..
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South Africans Living Through Water Cuts Blame Corruption And Neglect, Not Just Broken Pipes — Study
Going without piped water for weeks or even months has become a reality for many South Africans. The residents of Madibeng, meaning “place of water” in Setswana, in the country’s North West province, are no exception.  Continue Reading..
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Coastal Restoration Is In All Our Hands
While on vacation, my tour group visited the Palo Seco Mangrove Reforestation Project, where we spent a morning planting mangrove seedlings as part of its coastal restoration program. As I lowered my seedling into a hole, it hit me: As a writer, I had covered coastal restoration projects many times, but this was the first time I was actually taking part in one.  Continue Reading..
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Benefits Of Mobile DAF And MBBR Treatment For Food And Beverage Wastewater
Food and beverage plants in violation must correct discharge within days, yet permanent fixes take far longer. Rented treatment changes how plants handle that gap.  Continue Reading..
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England Needs 120% Of Normal Rainfall To Come Out Of Drought This Winter — Storms Won't Fix That Yet
Groundwater supplies much of the drinking water in southern and eastern England, but it fills slowly, over months and years. A hot summer is a big splurge with lots of withdrawals, but a dry winter means the deposits needed to repay that spending never arrive. That’s why a dry winter can do more damage to our water supplies than a heatwave.  Continue Reading..
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How A Tiny Water Utility Pieced Together Millions In Infrastructure Funding
While no major municipal water utility has ever claimed to be overfunded, it is much easier to cover the cost of large projects when it can be spread across hundreds of thousands of residents. But this is a stark contrast to the mathematical reality of smaller utilities like the Madison Community Services District (CSD). Its small size can make it difficult to attract the attention of those who control the purse strings for major projects.  Continue Reading..
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Understanding Biofilm Through Oxidative Chemistry
Biofilm is one of those water treatment problems that can look deceptively simple. Microorganisms attach to a surface, multiply, and begin building a community. The natural response is to disinfect, apply enough oxidant to kill the organisms and maintain a residual strong enough to keep them under control, however in practice, it is rarely that straightforward.  Continue Reading..
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Understanding Biofilm Through Oxidative Processes
Controlling a mature biofilm means targeting its protective matrix, not only the organisms inside. Prevention, destabilization, and removal each call for different oxidative behaviors, changing how performance should be judged.  Continue Reading..
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Understanding Biofilm Through Oxidative Diversity
Comparing oxidants by strength alone overlooks how different reactive species work together inside biofilm, and why familiar performance metrics only partly capture oxidative effectiveness.  Continue Reading..
1-SEM of biofilm inside a shower hose
Understanding Biofilm Through Oxidative Control Strategies
A disinfectant residual can look adequate while biofilm persists. The reactive chemistry an oxidant creates in water, and its interaction with the biofilm matrix, may matter more than oxidant strength.  Continue Reading..

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CH2M HILL NEWS

Research To Standardize Pathogen Monitoring For Water Reuse

A new study from The Water Research Foundation (WRF) is underway to help utilities and regulators evaluate pathogen concentrations in treated wastewater effluent for potable reuse applications. Led by Carollo Engineers, with the Southern Nevada Water Authority, San Diego State University, CDM Smith, and Trussell Technologies as co-investigators, WRF project 5309, Developing a Protocol for Evaluating Pathogen Concentrations in Secondary Effluent, will run over 24 months to close a gap in how the industry assesses treated effluent.

Ofwat-Funded Smart Alarm Project Hits Key Milestones

A water innovation project set to transform how control room alarms are managed has reached three major milestones, moving a step closer to helping utilities identify and respond to operational issues more effectively.  

IDOM Engineering Recognized With MUSE Design Award For Ras Tanura Wastewater Treatment Plant

IDOM has participated in the development of the detailed engineering of a new industrial wastewater treatment plant (IWWTP) for Ras Tanura Refinery for SEPCOIII, the main EPC contractor and IDOM’s client, aimed at improving effluent management and promoting water reuse within the refinery complex.

LAT Water Technologies Targets Ammonia Recovery As Europe Tightens Nitrogen Limits

LAT Water Technologies has launched a development programme to recover ammonia from industrial and agricultural wastewater, building on the company's waste-heat purification platform.

Spend On Digital Water Solutions In Europe To Surge 121% By 2036, Fueled By Metering And Analytics

Europe’s water utilities face mounting pressure to improve performance without corresponding increases in financial and personnel resources. These challenges, shaped by aging infrastructure, water scarcity, tighter environmental regulations, and workforce shortages, are accelerating the adoption of digital solutions, including investments in predictive analytics, automation, and optimization.

The Freshwater Trust Brings $24.2 Million To Enable Irrigation Upgrades For Idaho, Oregon Farmers

Federal awards and matching funds will help Idaho and Oregon farmers upgrade irrigation systems and reduce agricultural runoff.