New Jersey Law 2188 requires covered buildings to develop a Legionella water management plan by September 10, 2026 and have it fully implemented by December 10, 2026. The law was signed September 12, 2024 to address rising Legionnaires’ disease cases in the state. Plans must align with ASHRAE Standard 188 and include routine testing for […]
What Is NJ 2188 and Who Must Comply?
NJ 2188 is New Jersey’s Legionella law, signed September 12, 2024, that requires certain buildings to develop and implement water management plans. Covered buildings have until September 10, 2026 to develop their plan and December 10, 2026 to fully implement it. This guide explains which buildings must comply, what the law requires, and how to […]
How to Choose a Legionella Water Treatment Company in NJ
Choosing a Legionella water treatment company is one of the more consequential decisions a property manager makes. The provider you select shapes how your building handles testing, documentation, regulatory reporting, and outbreak response for years. This guide walks through the criteria that actually matter and the questions to ask when evaluating a Legionella water treatment […]
Cooling Tower Maintenance and the Water Treatment Partnership
Most building systems have one vendor and one scope of work. A cooling tower has two, and they do not overlap. A mechanical contractor handles the physical equipment. A water treatment provider manages the water chemistry. Both operate under the umbrella of cooling tower maintenance, both are essential, and neither can do the other’s job. […]
Why Are Legionella Risk Assessments Important For Your Facility?
A legionella risk assessment is one of the most important steps a building owner or facility manager can take to protect occupants and stay ahead of compliance requirements. Whether you manage a commercial office building, hospital, hotel, or industrial facility, understanding the risks within your water system is the foundation of any effective Legionella management […]
Heat Pump Maintenance and Water Treatment for Hydronic Systems
As heat pump technology becomes more common in commercial buildings, facility managers and building engineers are discovering the importance of comprehensive heat pump maintenance programs. While many heat pump maintenance guides focus on refrigerant levels and outdoor unit care, hydronic heat pump systems need attention to an additional critical component. The water circulating through the […]
New NYC Legionella Testing Requirements Starting In 2026
If you manage a building with a cooling tower in New York City, you need to understand the compliance changes coming in 2026. Local Law 159 of 2025, passed by the City Council in October 2025, changes legionella testing from quarterly to monthly for all cooling towers in the five boroughs, significantly impacting maintenance schedules and […]
Corrosion Coupon Rack Monitoring for Cooling Tower Systems
Corrosion is one of the most costly and preventable problems in cooling tower systems. Left unchecked, it leads to premature equipment failure, unexpected downtime, and expensive repairs that could have been avoided. A corrosion coupon rack is a critical monitoring tool that allows water treatment professionals to measure exactly how much corrosion is occurring in […]
4 Steps To Preventing Legionella In Hot Water Systems
In any building that uses water, it is always important to consider the quality and safety of that water when evaluating how to keep up with maintenance. Hot water systems do not often come to mind when it comes to Legionella testing and prevention because most people assume that the hot temperature of the water […]









