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

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

NSW Legionnaires’ infections

58% increase on 4 year average

2012 2013 2014 2015 20160

10

20

30

40

50

60

70

80

Legionnaires Infections - Legionella pneumophilaJan to Sept

4 YEAR AVG

Weather patterns

1/1/2

016

1/5/2

016

1/9/2

016

1/13/2

016

1/17/2

016

1/21/2

016

1/25/2

016

1/29/2

016

2/2/2

016

2/6/2

016

2/10/2

016

2/14/2

016

2/18/2

016

2/22/2

016

2/26/2016

3/1/2

016

3/5/2

016

3/9/2

016

3/13/2

016

3/17/2

016

3/21/2

016

3/25/2

016

3/29/2

016

4/2/2

016

4/6/2

016

4/10/2016

4/14/2

016

4/18/2

016

4/22/2

016

4/26/2

016

4/30/2

016

5/4/2

016

5/8/2

016

5/12/2

016

5/16/2016

5/20/2016

5/24/2

016

5/28/2

01615

20

25

30

35

40

45

2016 AVERAGE TEMPERATURES

Actual Monthly Average

Mar = +1.6

Feb = +2.0

Apr = +1.5

May = + 2.6

Jan = +1.4

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

Clarity reports

Clive Broadbent AM

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