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LATEST CH2M HILL ARTICLES

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The Hidden Legionella Risk In Closed-Loop Systems
For a long time, it’s been assumed that closed-loop water systems — those commonly found in building heating systems, air-conditioning units, and cooling systems — are at a low risk for Legionella. However, there are many reasons why closed-loop systems can actually inadvertently promote the risk of Legionella.  Continue Reading..
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5 Common AMI Implementation Mistakes And How To Navigate Them
The journey from manual water-meter reads to a fully integrated digital ecosystem is long and complex. To help utilities along, the Smart Water Networks Forum (SWAN) released the global Smart Metering Playbook, which includes both implementation best practices and common pitfalls. Here are five common advanced metering infrastructure (AMI) rollout mistakes from the Playbook, along with examples of how to overcome them.  Continue Reading..
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Heavy Rain On Snow Is Testing Aging Dams Across Michigan And Wisconsin — This Is The Future In A Warming World
For much of Michigan and Wisconsin, as well as northern Illinois, 2026 has been the wettest March and April on record. The region’s aging water infrastructure was never designed for the volume of water it is facing. That’s a troubling sign for the future, with flooding becoming more common as global temperatures rise.  Continue Reading..
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Why Multi‑Commodity Utilities Need Smart Meter Data Management
Breaking down data silos allows multi-commodity utilities to improve operational efficiency and infrastructure visibility. By managing water and electric data on a shared platform, providers can detect leaks faster and support long-term conservation goals.  Continue Reading..
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Beyond Clarification: Optimizing Polyacrylamide Selection For High-Complexity Industrial Wastewater Treatment
Polyacrylamide (PAM) selection in industrial wastewater treatment is frequently reduced to a trial-and-error exercise, resulting in reagent waste, inconsistent effluent quality, and inflated operating costs. This article presents a structured framework for PAM optimization across three critical variables — ionic charge density, molecular weight, and coagulant synergy.  Continue Reading..
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The Industry Has Money, Technology, And Urgency — So Why Is Nothing Moving Faster? (7 Takeaways From The Water Week 2026 Press Conference)
The water industry faces a critical disconnect between available federal funding and project execution. As workforce shortages and regulatory risks accelerate, stakeholders must bridge the communication gap to ensure long-term resilience and infrastructure stability. Hear from Water Online's publisher, Travis Kennedy, about these topics and more that were discussed at Water Week 2026.  Continue Reading..
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When Growth Outpaces Infrastructure: How The City Of Conroe Built A Future-Forward Software-Defined Water System Ready For What's Next
For fast-growing cities, the challenge is no longer whether modernization is needed, but how to do it without increasing risk or complexity. The City of Conroe, Texas offers a clear example of what it looks like to modernize with intent, by addressing not just equipment, but the underlying architecture of water operations.  Continue Reading..
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Beyond Clarifiers: How Advanced Primary Filtration Solves Wet Weather Capacity Challenges
Pile cloth media filtration treats wet weather flows in real time, increasing capacity, improving removal efficiency, and helping utilities reduce reliance on limited stormwater storage.  Continue Reading..
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Precision Control In The Aeration Basin: A Case Study In Flow-Based DO Stabilization
Flow-based DO control and advanced blowers help stabilize aeration, reduce energy consumption, and improve treatment performance, turning a major wastewater cost center into an efficiency opportunity.  Continue Reading..
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Drinking Water Contaminated With 'Forever Chemicals' During Pregnancy Linked To An Increased Risk Of Childhood Asthma
While most of us are routinely exposed to low levels of PFAS, some communities are exposed to far higher levels from nearby pollution sources. A new study shows that in one of these at-risk communities, children were more likely to develop asthma if their mothers were exposed to very high PFAS levels during pregnancy.  Continue Reading..

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CH2M HILL NEWS

Rain Enhancement Technologies Introduces Industry-First Guaranteed 10% Precipitation Enhancement

Rain Enhancement Technologies Holdco, Inc., a leading provider of ionization rainfall generation technology, today announced that it will guarantee a minimum 10% precipitation enhancement for all clients deploying its Weather Enhancement Technology Array (WETA) platform.

Veolia Works With Amazon To Develop Reclaimed Water For Cooling System For Data Center

Veolia is working with Amazon to reduce data center water use and advance water reuse in Amazon’s data center operations in Mississippi, contributing to local water resilience while supporting Amazon’s goal to be water positive across its direct data center operations by 2030.

New Guidance Standardizes Water Sector GHG Accounting

A new guidance document and companion tool, developed through a project sponsored by The Water Research Foundation (WRF) and led by the US Water Alliance, aim to standardize how water and wastewater utilities account for greenhouse gas (GHG) emissions, giving the sector a more consistent approach to measuring, reporting, and managing emissions.

Toray To Launch Lower-Biofouling Ultrafiltration Membrane Module With One Of The Industry's Smallest Nominal Pore Sizes*, At Just 0.005 Micrometers

Toray Industries, Inc., announced today that it plans to launch the F-HFUG Series ultrafiltration (UF) membrane module in May this year for wastewater reuse.

Salinity Solutions And SUEZ Launch First Hybrid Batch Reverse Osmosis Pilot For Municipal Wastewater Reuse In Béziers, France

The Hybrid Batch Reverse Osmosis Solution, a new benchmark for water reuse efficiency Supported by ADEME, this first municipal pilot of Hybrid Batch Reverse Osmosis Solution, operates under real operating conditions at the Béziers wastewater treatment plant.

Garney Breaks Ground On Hillsborough County's Largest Capital Improvement Project

Garney has broken ground on the new One Water – South Wastewater Conveyance and Treatment Project (One Water Project) in Tampa, the largest capital improvement project in Hillsborough County’s history. The massive project supports the County’s efforts to expand its water reuse and meet future population growth.