Legionella & Water Management

The Metro Group specializes in providing turn-key, full-service Water Management programs for HVAC and potable water systems to Commercial, Institutional, Industrial and Healthcare clients. In the geographies we service, The Metro Group differentiates itself by having the largest, most capable service and support teams in the water treatment industry. The Metro Group is a member of the Association of Water Technologists. Our Technical Director, John Caloritis, CWT, is the current chair of the AWT Cooling Committee and is a member of the AWT Legionella Task Force. The Metro Group is proud to employ the most CWT’s, Certified Water Technologists, of any water treatment company, with the most CWT’s on the East Coast. The CWT is an individual recognized as a Qualified Person to oversee and administer Water Management Plans by industry standards, guidelines and regulations. The Metro Group has an in-house, ELAP Certified Laboratory for the testing of Legionella. The Metro Group currently manages and administers thousands of Water Management Plans for the Control of Water-borne pathogens in building water systems. Headquartered in Queens, NY, and as water experts, The Metro Group was in the unique position to work with governing agencies and clients to navigate and comply with the NYS Legislation, the first Legionella laws in the US, passed on the heels of the 2015 outbreak in the Bronx.


One of the key differentiators that The Metro Group brings to the table for our Water Management clients is the ability to interpret and analyze testing results from the lab, make recommendations for Remediations and Disinfections when necessary, and most impactfully, to perform those Remediations and Disinfections at client sites. Legionella Remediation services with The Metro Group range from localized sterilization of distal sites, to full scale hyper chlorination’s of water systems.

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