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Current Status

Environmental Indicators

Environmental data (indicators) are used to monitor trends and the effectiveness of programs. The main indicators are summarised below.

Water supply

2005/06

2006/07

2007/08

2008/09

Potable water cost ($/kL) i

$1.264

$1.48

$1.83

$1.87

Water storage level (per cent) ii

41.8%

50.5%

66.7%

61.4%

Average City of Sydney rainfall (mm) iii

792

1,403

1,197

1,156

i. Sydney Water pricing for consumption more than 100 kilolitres per quarter.

ii. Sydney Catchment Authority June figures.

iii. Average rainfall for 5 monitoring stations around City of Sydney provided by Sydney Water.

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Water usage

2005/06

2006/07

2007/08

2008/09

 Trend
City of Sydney LGA water usage Total (ML) 33,712 34,419  32,471 32,602 trend - decline
Commercial average (kL) 2,417 2,451 2,292 2,194 trend - improvement
Units average (kL) 172  170 161 160 trend - improvement
Houses average (kL) 190  183 173 175 trend - decline
Council water usage Total (ML) 483 491 476 454 trend - improvement
Per employee (kL) 322 304 304 269 trend - improvement
Fountains (kL/site/day) 1.9 2.0 1.5 1.29 trend - improvement

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Water pollution

Indicator

2005/06

2006/07

2007/08

2008/09

Trend

Darling Harbour bacteria levels (percent of time at safe limit) i

Faecal coliforms

Winter

59%

35%

55%

65%

trend - improvement

Summer

41%

32%

35%

61%

trend - improvement

Enterococci

Winter

55%

40%

68%

43%

trend - improvement

Summer

69%

55%

48%

55%

trend - improvement

NSWMaritime rubbish collection (m3)

Blackwattle Bay

116

126

93

95

-

Rozelle Bay

263

204

157

87

-

Rubbish from Council stormwater pollution traps (t)

1,102

1,290

1,334

1,263

-

Water pollution infringements

76

44

84

81

-

Customer requests - Sewer overflows/water leaks

25

170

144

191

-

Customer requests - stormwater pollution

5

85

68

93

-

i. Darling Harbour testing by the NSW Department of Environment and Climate Change against standards for primary contact.

Legend

% - Percent
$ - Cost
kL - Kilolitres
LGA - Local Government Area
ML - Megalitres
mm - Millimetre
m3 - Cubic metre
t - Tonne

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Last Updated: Thursday 3 December, 2009

Please Note:
While care is taken to ensure accuracy, the City of Sydney cannot guarantee that information expressed here is correct and recommends that users exercise their own skill and care with respect to its use. The City of Sydney makes no warranty or undertaking, whether expressed or implied, nor does it assume any legal liability, whether direct or indirect.