In November we, at HydroChem, sponsored a series of technical seminars along the eastern seaboard. The seminars were timed to coincide with Australia’s seasonal shift, and provided a comprehensive look at the control and management of Legionella both here and abroad. The series was titled Sydney’s Summer of Legionella – Clive Speaks and the keynote presentation was delivered by renowned Legionella authority and chair of AS/NZS 3666: Air-handling and water systems of buildings - Microbial control, Clive Broadbent, AM. For more visit: http://www.hydrochem.com.au/clive

3. Agenda
• Sydney 2016
• HydroChem’s response
• Legionella
• Cooling towers
• Risk factors
• OH&S
• Q&A

4. Sydney outbreaks – 2016
Location Date Illness Deaths
CBD – Town Hall area Feb / March 9 1
Kogarah – St George Hospital
area
March / April 3
CBD – Circular Quay area May 6
Burwood / Hurstville May 5 1

6. NSW Legionnaires’ infections
58% increase on 4 year average
0
10
20
30
40
50
60
70
80
2012 2013 2014 2015 2016
Legionnaires Infections - Legionella pneumophila
Jan to Sept
4 YEAR
AVG

7. Weather patterns
15
20
25
30
35
40
45
2016 AVERAGE TEMPERATURES
Actual Monthly Average
Mar = +1.6Feb = +2.0 Apr = +1.5 May = + 2.6Jan = +1.4

8. NSW Government response
• Inspected over 400 cooling towers
• Source of Legionella not determined
• Requested 6 months of paperwork from all CBD
cooling tower systems
• NSW Health Legionella expert panel

15. Clarity reports

16. Clive Broadbent AM

17. After presentation
Clive Broadbent then presented on controlling
Legionella in a variety of water systems and
environments.