Chem-Aqua - Your Trusted Water Treatment Partner

  • 21 février 2023
  • Author: Chem-Aqua, Inc
  • Number of views: 613
  • 0 Comments
Chem-Aqua - Your Trusted Water Treatment Partner

For decades, Chem-Aqua has provided custom treatment programs that solve waterside problems and make water systems more efficient. With representation in over 50 countries across the globe, we provide programs for water systems in manufacturing, food and beverage, healthcare, data centers, educational, office, government, and hospitality facilities.

Where Should I Sample for Legionella?

Where Should I Sample for Legionella?

Should your Water Management Plan (WMP) Program Team decide to utilize environmental water sampling to validate the effectiveness of the WMP, ANSI/ASHRAE 188-2018 advises that these tests should be performed by a laboratory accredited to a nationally or internationally recognized standard (e.g., ISO/IEC 17025:2017), with Legionellaa included in the laboratory’s scope of accreditation.

Before environmental sampling is undertaken, a Sampling Plan should be formulated.  This plan should list the devices and Points of Use (POUs) to be sampled, at what frequency sampling will be performed, what the acceptable control limits will be, and what the response protocol will be for any sample result(s) falling outside of the previously-established control limits. 

What is PPM?

Calculating Parts Per Million

  • 29 octobre 2019
  • Author: Tony Self
  • Number of views: 44279
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What is PPM?

The phrase “Part Per Million” is a term we use to describe very small amounts of something in a much larger amount of something else. Here are some examples of one part of something in a million parts:

Legionella: To Sample, or Not To Sample?...That is the Question

What's required and what is my sampling plan?

  • 9 juillet 2019
  • Author: Dominick Tuzzo
  • Number of views: 3773
  • 0 Comments
Legionella: To Sample, or Not To Sample?...That is the Question

The simple answer is no (not directly), and here’s why:  There is no known safe level of Legionella in a building water system.  Therefore, even a non-detect sample result is not necessarily “safe.” The reason why is because the life cycle of this organism, coupled with the stresses put on it via temperature, disinfectants, etc. found within building water systems, may cause it to enter a viable but non-culturable (VBNC) state. 

Chlorine and Bromine Testing In Cooling Tower Systems

What You Need to Know

  • 25 juin 2019
  • Author: Allan Browning
  • Number of views: 16651
  • 0 Comments
Chlorine and Bromine Testing In Cooling Tower Systems

Chlorine and bromine based biocides are widely used for microbiological control in cooling tower systems. These halogen compounds form strong oxidizing agents in water, which is how they kill bacteria and other microorganisms. Routine testing is important to confirm effective halogen residuals are maintained. Low residuals can result in poor microbiological control. High residuals can cause corrosion and destroy inhibitors.

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