TT074 – Mitigating Legionella Risks in Water Systems: Lessons from a Microbiologist

About this episode

The episode features a discussion with microbiologist Katie Maegli on Legionella risks in water systems and management strategies.

Today, we welcome Katie Maegli of Water Quality Investigations to Tap Talk! WQI is a private water testing lab in southern Wisconsin, where Katie serves as the lab's microbiologist with specializations in buildings' water systems and Legionella management. This conversation dives deep into Legionella; from where the bacteria is commonly found, the regulatory guidelines that help reduce Legionella risk, the actions individuals can take to avoid legionella growth in their wells, health impacts from Pontiac fever and Legionnaires' disease, and the complexities of accurate testing of Legionella. Visit drinkingwaterpodcast.org to learn more and find the full show notes for this episode.

People in this episode

Guest: Katie Maegli

Topics covered

• Legionella
• water systems
• microbiology
• health impacts
• water testing

Keywords

• Legionnaires' disease
• Pontiac fever
• water quality
• regulatory guidelines

Mentioned in this episode

Products: Water Quality Investigations

Places: Wisconsin

More episodes of Tap Talk

• TT075 – Raising Your Hand: The Value of Industry Involvement · April 30, 2026 · 30 min
• TT073 – Behind the Scenes of Water and Environment Reporting · April 16, 2026 · 38 min
• TT072 – Build Trust Before a Crisis: Communication Basics for Water Systems (Part 2) · December 4, 2025 · 34 min
• TT071 – Build Trust Before a Crisis: Communication Basics for Water Systems · November 20, 2025 · 36 min
• TT070 – Diving Into Biofilms With Water Quality Investigations (Part 2) · November 13, 2025 · 35 min
• TT069 – Diving Into Biofilms With Water Quality Investigations (Part 1) · November 6, 2025 · 37 min