Managing Legionella risk is a critical component of hotel and casino water system governance. The municipal water that enters a property is not sterile and can harbor Legionella bacteria, which can cause severe illness and even death if not properly managed. As the global leader in water risk management, Nalco Water helps hotel and casino operators implement structured programs to manage Legionella risk across complex, continuously operating hospitality environments.

Comprehensive Water Treatment and Management Solutions for Hotels & Casinos
Optimize water performance across complex properties
Hotel and casino operators around the world choose Nalco Water as a strategic partner for water treatment solutions that support asset performance, sustainability goals, and reliable operations across complex hospitality environments. Our integrated water management programs help properties reduce cooling tower water use and energy consumption while supporting effective Legionella risk management.
With continuously operating, high demand water systems at the core of guest experience and facility performance, hotels and casinos need solutions that improve efficiency, protect assets, and maintain consistent system reliability.
Water Risk Management for Hotels & Casinos
Cooling Tower Water Treatment for Hotels and Casinos

Cooling towers are a critical component of hotel and casino water systems, playing a crucial role in supporting water safety and risk management efforts. For safe, simple, and sustainable hotel and casino water treatment, 3D TRASAR™ Technology for Cooling Water provides real‑time dosing control and 24/7 system monitoring to help reduce operating costs and extend asset life, supported by a scalable portfolio and ECOLAB3D™ digital insights.
Real-World Success Stories

Supporting Safe, Simple, Sustainable Water Treatment with InterContinental Hotels & Resorts
Supporting Safe, Simple, Sustainable Water Treatment with InterContinental Hotels & Resorts
InterContinental Madrid reduces energy use and packaging waste while improving employee safety.

Helping Marriott Deliver on its Sustainability Commitments
Helping Marriott Deliver on its Sustainability Commitments
Marriott saves 2.46 million gallons of water annually across three Hawaii properties.

Reducing Hotel Energy and Water Usage in a Water-Stressed Region
Reducing Hotel Energy and Water Usage in a Water-Stressed Region
One property saves 2.6 million gallons of water and doubles cooling tower cycles of concentration.

1. Cooling Water Treatment
2. Closed Loop Treatment
3. Boiler Treatment
4. Pre-Treatment
5. Legionella Risk Management
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With unparalleled expertise and cutting-edge technology, we partner with customers to deliver world-class results and optimized operations. Contact us to learn how we can help you.
Nalco Water
1601 W. Diehl Road
Naperville, Il 60563
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Nalco Water Customer Service: +1-800-288-0879
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