12 Dec 2006 ANG enviro report

A
water target achieved
Alcoa Anglesea maintains the focus on town water use
anglesea environment report
DECEMBER 2006
Inside the ‘Best Practice’ Environment Report:
Air Emissions
Water Monitoring
2006 town water target achieved
Animals of the Anglesea Heath: Gang-gang Cockatoo
Updates on Rainfall, Town Water Use and Greenhouse Gas Emissions
Environmental improvement - progress towards 2006 targets
Plus we talk to an employee about their contribution to improving the environment
ANGLESEA ENVIRONMENT REPORT DECEMBER 2006
air
Air Monitoring
Stack Monitors
Average
Maximum
Opacity g/m3 10-minute average
0.067
0.324
Stack SO2 kg/min 1-hour average Licence limit 111.34kg/min 60.18
77.42
Ambient Monitors
SO2 1 hour ppb
Average
Maximum
Community Centre
2
18
Primary School
2
198
Mt Ingoldsby
<1
8
Scout Camp
4
93
Camp Wilkin
2
7
Camp Road
2
89
Ambient Monitors
SO2 Maximum 1 hour averages (ppb)
Date
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Community Centre 2 2 3 3 18 2 3 2 3 3 2 2 4 3 2 2 4 3 -
-
3
3
3
4
3
3
3
3
2
2
Primary School
2
1
0
0 131 1
1
1
3
2
2
0
6
1
0
0
1
2
-
-
3 198 0
0
0
0
0
0
0
1
1
Mt Ingoldsby
4
2
3
8
2
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4
6
0
0
0
0
0
0
0
1
1
Scout Camp
9
2
3
2
21 9
4
3
8
8
10 4
9
93 4
4
4
5
4
5
9
7
-
-
-
-
12 10 10 11 10
Camp Wilkin
2
1
1
1
2
2
2
2
3
3
2
2
7
2
2
2
3
3
2
2
4
5
2
2
2
2
2
1
2
3
2
Camp Road
0
0
1
1
-
0
3
2
4
3
2
2
5
2
2
2
3
3
2
2
3
89 3
-
-
-
-
-
-
-
-
EPA Intervention Level
210
Alcoa Local Standard
170
6
ANGLESEA ENVIRONMENT REPORT DECEMBER 2006
water
Water Storage
Barwon Water storage levels for the Geelong system at 22.2% capacity. Stage 4 restrictions now apply.
Water Discharge
ML
December
Total
Ashponds (SP1)
146
1690
Mine (SP4)
0
0.8
Water Monitoring
SP1
SP4
SP3
12/12/2006
Ashpond
Mine
Final
EPA limit
Lab Result
EPA limit
Lab Result
EPA limit
Lab Result
pH
4-10
8.9
3-9
-
5-9
7.3
Susp. Solids
100
<2
100
-
30
<2
Colour
50
4
50
-
50
4
Aluminium
10
< 0.1
10
-
5.5
< 0.1
Iron
10
< 0.2
0
-
4.0
< 0.2
Zinc
0.4
< 0.1
2.0
-
0.3
< 0.1
WATER WATER USAGE PER MONTH (ML)
Date
JAN
FEB MAR APR
MAY JUNE JULY AUG
SEPT OCT
NOV
DEC
TOTAL
Town Water
1.0
1.0
1.0
1.5
1.6
0.8
1.0
1.1
0.9
1.6
1.8
1.6
14.9
Bore Water
279
243
285
237
210
218
238
240
236
262
252
264
2964
Mine Water
81
82
81
92
106
88
93
101
104
51
56
80
1015
300.0
3000
250.0
2500
200.0
2000
150.0
1500
100.0
1000
50.0
0.0
500
0
ANGLESEA ENVIRONMENT REPORT DECEMBER 2006
water target achieved
In a year of extreme drought conditions where low water storages and water restrictions have been in the
spotlight, Alcoa Anglesea has strived for and achieved the ambitious goal of a further reduction in town water
use. Just 14.9 ML of water was used in 2006 meaning Alcoa Anglesea has now reduced its town water use
by more than 60% from 2000, two years ahead of the corporate 2008 target.
Congratulations to all the employees of Alcoa Anglesea who have been vigilant in minimising the use of town
water. The water saving is particularly critical, given the current drought leading to Stage 4 water restrictions
being enforced by Barwon Water. Alcoa Anglesea has quickly adapted to the changing water restrictions,
including the decommissioning of the carwash facility. The acceptance of the need to save water by all
employees is to be highly commended.
The driving force behind water saving at Alcoa began in 2004 when Alcoa and Barwon Water signed an
agreement to produce water management plans with the intent of reducing water use. The agreement was
launched by the Hon John Thwaites, Minister for Water. Alcoa (Pt Henry & Anglesea) has spent over $1
million dollars on water conservation initiatives since forming the partnership.
The first step in the agreement was for Alcoa to undergo a series of water audits. Key findings from the
audits were implemented, in particular the installation of water saving devices on all showers, basins and taps
utilising town water. This project had a financial payback of 15 months, as well as significantly saving water.
Other projects were also identified by the site Water Team and carried out by maintenance teams. This
included such projects as the conversion of toilets to GS water, trigger nozzles fitted on hoses, and
prominent water saving signage.
Alcoa Anglesea’s goal in 2007 is to maintain its water saving efforts with a target to further reduce water use
by 10% by 2010 resulting in a 70% reduction since 2000.
PLANTS OF THE ANGLESEA HEATH
GANG-GANG COCKATOO (Callocephalon fimbriatum)
Size:
Weight:
Description:
34cm
257g
small stocky cockatoo with a wispy crest,
adult male has a distinctive scarlet red head
+ crest with the rest of the body slate-grey,
adult female has a dark grey head + crest
with the feathers on the breast and
abdomen edged in pink and yellow
Distribution
endemic to south-eastern Australia
Habitat:
in summer the Gang-gang is found in tall
mountain forests and woodlands with dense
shrubby understorey, in winter they will
move into drier, open forest and woodlands
Food:
mainly feed on seeds of native and
introduced trees and shrubs with a
preference for eucalypts and wattles
Did you know? Gang-gang Cockatoos almost always use
their left foot to hold food when eating
GANG-GANG COCKATOO
ANGLESEA ENVIRONMENT REPORT DECEMBER 2006
LAND
RAINFALL (mm)
Month
JAN
FEB MAR APR
MAY JUNE JULY AUG
SEPT OCT
NOV
DEC
TOTAL
2006 Rainfall
46.2
19.6 7.3
37.1
129.4 17.0
40.8
26.0
32.8
15.8
15.4
29.0
417.4
1968-2005 Average
44.6
43.9 42.5
53.5
59.3 60.8
61.1
67.0
69.3
73.6
54.1
44.2
673.8
130
7 0 0 .0 0
120
6 0 0 .0 0
110
100
5 0 0 .0 0
90
80
4 0 0 .0 0
70
60
3 0 0 .0 0
50
40
2 0 0 .0 0
30
20
1 0 0 .0 0
10
0
0.00
WATER
TOWN WATER USE (ML)
2000 2001 2002 2003 2004 2005 2006 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Process
23.9 14.6 13.1 16.7 15.0 13.5 1 1 . 0 0.7
0.7
0.8
1.1
0.9
0.6
0.6
0.7
0.6
1.3
1.5
1.5
Amenity
11.6 6.6
3 . 8 0.3
0.3
0.2
0.4
0.7
0.2
0.4
0.4
0.3
0.3
0.3
0.1
2 .0
6.6
5.0
4.0
2.6
4 0 .0
1 .8
3 5 .0
1 .6
3 0 .0
1 .4
2 5 .0
1 .2
1 .0
2 0 .0
0 .8
1 5 .0
0 .6
1 0 .0
0 .4
5 .0
0 .2
0 .0
0 .0
2000
2001
2002
2003
2004
2005
2006
JA N
FE B
M A R
A P R
M A Y
JUN
JU L
A UG
S E P
O C T
NO V
D E C
AIR
GREENHOUSE GAS (GHG) TOTAL (Mt) & GHG EMISSION EFFICENCY (t/MWh)
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
1.42 1.62 1.56 1.45 1.34 1.25 1.20 1.38 1.42 1.53 1.23 1.27 1.50 1.45 1.47 1.31 1 . 4 9
GHG Mt
‹ GHG
t/MWh 1.34 1.35 1.33 1.32 1.31 1.33 1.38 1.34 1.30 1.30 1.24 1.19 1.21 1.21 1.20 1.21 1 . 2 1
2
1600000
1 .8
1400000
1 .6
1 .4
1 .2
1200000
1000000
1
800000
0 .8
600000
0 .6
400000
0 .4
200000
0 .2
0
0
ANGLESEA ENVIRONMENT REPORT DECEMBER 2006
environmental improvement
Environmental Management Targets
December
2006 Total
Forecast
2006 Target
Reportable Environmental Incidents
0
0
-
0
Monthly EHS ASAT Audit Completion (%)
100
94
-
90
Air Emission Targets
December
2006 Total
Forecast
2006 Target
Ambient SO2 ( no. readings > 210ppb)
0
4
-
0
Stack SO2 (no. hrs > 100kg/min)
0
0
-
0
SO2 Load Reductions
2
111
-
N/A
1.21
1.21
-
1.20
Opacity (10 min av > 0.25g/m normal operation)
0
0
-
0
Water Targets
December
2006 Total
Forecast
2006 Target
Town Water (ML)
1.6
14.9
-
17.2
Bore Water (ML)
264
2964
-
2440
Waste Targets
December
2006 Total
Forecast
2006 Target
Waste to Landfill (t)
0.0
9.1
-
10.0
Solid Prescribed Waste to Landfill (t)
0.0
0.0
-
0.0
GHG Efficiency (t CO2 e/MWh)
3
Mine Rehabilitation Targets
2006 Total
2006 Target
2006 Area Cleared (ha)
3.3
3.3
2006 Area Rehabilitated (ha)
7.5
> 3.3
2005 Mine Rehabilitation Species Richness (%)
N/A
100
OUR ENVIRONMENT AND OUR EMPLOYEES..
It’
s been 2 years since Anglesea embarked on a
It’s
concerted effort to reduce its town water use. What
sort of things does the maintenance department do to
ensure no water is wasted?
A more concerted response to repairs on the water systems.
shorter showers,”soap up” first then turn the taps on to wash
hands and face and trigger nozzles on all town water hoses.
Have these lear ning’
s being implemented at home?
ning’s
Yes I have installed the same restrictors on both our showers.
I have been on the websites that were suggested for info on
water conservation in the last issue of “Enviro News” and from
the research and talking to our resident plumber Bindy I have
diverted about 80% of grey water to our gardens at little cost and
alteration. We had a tank installed about 10 years ago and only
used the water for drinking but now we use this to “hand water”
the plants and garden beds as before it was done by the hose or
the auto watering system.
As a regular provider of feed back on the Environment
Report, what issues interest you most?
Long term..What does the future hold for the next generation?
Short term..How we can keep running this station with minimum
impact to the environment and the people?... so I have a job.
...PAUL MANNIX
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