|
Site
|
Approximate number of samples
|
Volume
of samples
|
|
General potable water system
|
|
Incoming water pipe(s)
|
2
|
10 litres
|
|
Water softener (pre and post)
|
2
|
1 litre
|
|
Preheater (discharge side)
|
1
|
1 litre
|
|
Primary heater (discharge side)
|
1
|
1 litre
|
|
Circulating pumps
|
2
|
1 litre
|
|
Holding tanks (cold water, discharge side)
|
2
|
1 litre
|
|
Expansion tank for hot water
|
1
|
1 litre
|
|
Back drain on sprinkler system(s)
|
2
|
1 litre
|
|
Fireline where it branches off main system
|
1
|
1 litre
|
|
Water used for respiratory therapy equipment
|
2
|
≥1 litre
|
|
Outlets in patients' rooms
|
4
|
1 litre
|
|
Air compressor system
|
|
|
|
Vacuum water source
|
1
|
≥100 ml
|
|
Positive pressure equipment side
|
|
|
|
Condensate from tank(s)
|
3
|
≥100 ml
|
|
Water separator(s) directly off compressors
|
4
|
≥100 ml
|
|
Water source(s) near air intake(s)
|
4
|
≥100 ml
|
|
Air samples where patients were ill with
legionellosis
|
3
|
n.a.
|
|
Potable water final distribution outlets
|
|
|
|
Haemodialysis water source
|
|
|
|
Before or after demineralizer
|
1
|
≥100 ml
|
|
Intensive care units
|
|
|
|
Respiratory therapy (patients' room)
|
2
|
1 litre
|
|
Cardiac
|
2
|
1 litre
|
|
Services with different geographical locations
|
7
|
1 litre
|
|
Ice‑maker (entry water) and ice
|
|
≥1 litre
|
|
Air-conditioning system
|
|
Air handling unit serving area where disease
occurred
|
2
|
≥100 ml
|
|
Cooling towers
|
|
|
|
Return from heat exchanger to water (spray/trough
and gutter) distribution or pond (sump)
|
2
|
≥1 litre
|
|
Water supply
|
1
|
1 litre
|
|
Hot tubs
|
|
|
|
Pool and balance tank (if fitted)
|
1
|
1 litre
|
|
Jets and pipes
|
1
|
swab
|
|
Other
|
|
Decorative fountain
|
1
|
1 litre
|
|
Creeks, ponds, sites of stagnant water
|
4
|
1 litre
|
Download Page