New Technologies for Legionella and Pathogen Control

Recorded On: 06/19/2019

New Technologies for Legionella and Pathogen Control
Original air date: June 19, 2019 - FREE to ASPE Members

This program provides an introduction into the key pathogenic organisms of concern in domestic water systems. The program will review the basics of bacteria and other microorganisms. The different methods of controlling Legionella/pathogen levels in plumbing systems and cost comparisons (with pros and cons) will be covered in detail with sample problems for the participants to complete.

Content Outline:

  • Common bacteria in our domestic water systems
  • Legionella
    • Risk levels
    • Why people are paying attention
    • Controlling Legionella in building systems
  • Current methods of control
    • Monochloramine
    • Copper silver
    • Chlorine dioxide
  • New solution, ultrafiltration 
    • Details on new technology
    • Point-of-use
    • Hot Water Recirculation
    • Point-of-entry
    • Case Studies
    • Cost comparison

Upon successful completion of the course participants will be able to:

  • Identify "acceptableā€¯ levels of Legionella
  • Describe the CMS Memo on water systems in healthcare facilities
  • Explain the basics of Legionella as well as other bacteria and microorganisms
  • Explain different methods of controlling Legionella/pathogen levels in plumbing systems as well as their pros and cons
  • Calculate cost comparisons with other technologies (chemicals, copper silver, etc.)
  • Accurately apply to point-of-use, point-of-entry (whole building), and hot water loops to control bacteria and nutrient levels
  • Understand how the systems are installed and maintenance requirements
  • Demonstrate case studies of installations



The Presenter: Andrew Paulsen

Andrew has been working in water treatment for 14 years with Water Control Corporation company. He is currently the lead design technical and regional sales manager. As a Mankato State University alumnus, Andy has many years of industry experience. Andy has experience as a pipe fitter, project estimator/manager and product technical specialist. Andy has worked on the design, construction, installation, and commissioning of hundreds of commercial water treatment systems including softening, high purity water, filtration, disinfection and water reclaim equipment. Water Control is a 46-year-old industry leading manufacturer with thousands of water treatment systems installed nationwide. Currently, they are very active in legionella and pathogen control, water reclamation systems (rainwater, graywater, condensate, etc) and high purity water systems (reverse osmosis and deionized water) for commercial, industrial and institutional applications.  

This webinar is sponsored by:


The sponsor receives attendees' names and email addresses for those that sign up for the live webinar.


New Technologies in Legionella and Pathogen Control
Open to view video.
Open to view video.
Learning Assessment
5 Questions  |  3 attempts  |  3/5 points to pass
5 Questions  |  3 attempts  |  3/5 points to pass
Post-webinar Survey
6 Questions
6 Questions Extra notes for PEs: Are you a P in any of the 50 states, specifically New York, North Carolina, Floria, Michigan, or Ohio? If so, please complete the form below for your records. This form is in addition to completing the learning assessment (quiz) to comply with your states' PDH requirements. ASPE carefully reviews all submissions received in order to incorporate changes to our programs. If a speaker did not meet attendees' needs or the description did not match the program adjustments will be made. For example: if the program as it was presented was different than advertised ASPE will revise the course description and/or remove the course from our catalogue depending on the circumstance. All course materials, program evaluations, and applicable data are kept on file at ASPE for a minimum of 6 years.
0.10 CEUs credits  |  Certificate available
0.10 CEUs credits  |  Certificate available
North Carolina PE Evaluation
9 Questions
9 Questions Please complete this if you hold a PE license in NC.