2008 08 august

anglesea’s nest egg
peregrine falcons return to the nest box
alcoa anglesea
2008
environment report
august
ANGLESEA ENVIRONMENT REPORT AUGUST 2008
air
Air Monitoring
Stack Monitors
Average
Maximum
Opacity g/m3 10-minute average
0.063
0.294
Stack SO2 kg/min 1-hour average Licence limit 100kg/min
41.92
87.56
SO2 1 hour ppb
Average
Maximum
Community Centre
<1
6
Primary School
<1
50
Mt Ingoldsby
<1
75
Scout Camp
3
130
Camp Wilkin
<1
77
Camp Road
1
80
Ambient Monitors
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 -
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1
1
0
0
0
0
6
1
1
Primary School
16 -
-
-
16 1
1
0
0
0
0
0
1
1
0
0
0
0
17 0
1
0
0
0
25 15 1
0
42 8
Mt Ingoldsby
0
0
0
45 1
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14 0
0
26 75 0
130 -
-
-
4
2
4
0
0
0
0
0
0
0
0
0
0
6 106 0
1
0
0
20 1
0
0
1
2
4 102
-
-
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
1
12 0
0
6
77 2
23 1
0
0
0
0
0
0
0
0
0
0
0
0
80 1
0
0
0
0
67 13 0
0
60 3
Scout Camp
Camp Wilkin
0
Camp Road
63 0
EPA Air Quality Objective
200
Alcoa Local Standard
170
-
21 2
0
-
50
2
ANGLESEA ENVIRONMENT REPORT AUGUST 2008
water
Water Storage
Barwon Water storage levels for the Geelong system at 30.3% capacity. Stage 4 winter water restrictions
with an exemption to permit limited residential garden watering are in force.
Water Discharge
ML
August
Total
Ashponds (SP1)
132
1115
Mine (SP4)
0
0.12
Water Monitoring
SP1
SP4
SP3
26/08/2008
Ashpond
Mine
Final
EPA limit
Lab Result
EPA limit
Lab Result
EPA limit
Lab Result
pH
4-10
8.6
3-9
no
5-9
7.4
Susp. Solids
100
<4
100
discharge
30
<4
Colour
50
4
50
at
50
4
Aluminium
10.00
0.22
10
time
5.50
0.05
Iron
10.00
0.34
20
of
4.00
0.03
Zinc
0.40
< 0.01
2.0
sampling
0.30
0.01
WATER WATER USAGE PER MONTH (ML)
Date
JAN
FEB MAR APR
Town Water
1.4
0.9
0.9
2.2
1.0
0.9
1.7
2.2
11.2
Bore Water
279
304
305
254
292
265
252
196
2147
Mine Water
53
24
45
26
45
44
69
51
357
MAY JUNE JULY AUG
SEPT OCT
NOV
DEC
TOTAL
3 0 0 .0
3000
2 5 0 .0
2500
2 0 0 .0
2000
1 5 0 .0
1500
1 0 0 .0
1000
5 0 .0
0 .0
500
0
ANGLESEA ENVIRONMENT REPORT AUGUST 2008
peregrine falcon
Our beloved Peregrine Falcons are back for 2008
with Havoc and Sheila returning to their purposebuilt nest box on the water tower at Alcoa Anglesea.
Running a little behind schedule this year, our
feathered couple had a disruptive pre-season only
showing up at the nest box on the odd occasion.
The pair usually have a consistent presence at the
nest box from mid-July with displays of courtship
and preparation of the scrape.
However once settled in Sheila took no time to get
down to business and lay eggs number one and
two. The female usually lays one egg every 48
hours so we expect eggs number three and
maybe four in first few days of September.
Whilst Peregrines can lay anywhere from two to
six eggs, the average number is four. Young pairs
often only have two eggs in their first breeding
season, and then increase to three or four eggs in
subsequent years. Since her arrival at Alcoa
Anglesea in 2004, Sheila has laid four eggs every
year.
As they say, ‘don’t count your chickens before
they hatch’...or in this case falcons. Despite laying
four eggs, hatching success has been mixed with
only one and two eggs hatching in 2006 and 2007
respectively. Fingers crossed for a better result in
2008.
The webcam at www.alcoa.com/falcons is now
back online providing us images of day-to-day life
in the Peregrine Falcon nest from the arrival of the
first egg until the last fledgling departs. Online for
the full breeding season in 2007, the webcam
proved increasingly popular from it’s debut
becoming the highest hit web page on
www.alcoa.com/au for the month of October.
ANIMAL OF THE ANGLESEA HEATH
SWAMP HARRIER (Circus approximans)
Size:
Description:
55 cm
mainly dark brown above with a prominent
white rump; the Swamp Harrier is
recognised in flight by it’s long and broad
wings with 5 ‘fingers’ on the wing tips
Distribution:
Australasia and the South Pacific
Habitat:
terrestrial wetlands often in deep swamps
with emergent reeds and open water
Food:
birds and eggs, large insects, frogs, reptiles
and small mammals up to the size of a rabbit
Breeding
September to December; the nest of the
Swamp Harrier is made of straw and
grasses, hidden above the water in dense
reeds in a swamp; usually nest in single pairs
Did you know? Swamp Harriers are easily disturbed at the
nest and will abandon their eggs and even
downy young if approached by people
SWAMP HARRIER
ANGLESEA ENVIRONMENT REPORT AUGUST 2008
LAND
RAINFALL (mm)
Month
JAN
FEB MAR APR
MAY JUNE JULY AUG
2008 Rainfall
19.8
35.8 15.2
17.3
32.5 43.8
75.8
61.6
301.8
1968-2007 Average
44.5
42.7 41.1
52.5
61.0 59.9
62.2
65.3
429.1
SEPT OCT
NOV
DEC
TOTAL
100
7 00.00
90
6 00.00
80
5 00.00
70
60
4 00.00
50
3 00.00
40
30
2 00.00
20
1 00.00
10
0 .0 0
0
WATER
TOWN WATER USE (ML)
FEB
MAR APR
MAY
JUN
JUL
AUG SEP
Process
23.9
12.8
1 0 . 1 1.3
0.8
0.8
2.1
0.8
0.8
1.5
2.0
Amenity
11.6
1.5
1.1
0.1
0.1
0.1
0.2
0.1
0.2
0.2
2000 2007 2008 JAN
0.1
OCT
NOV
DEC
4 0 .0
3 5 .0
2 .0
3 0 .0
1 .5
2 5 .0
2 0 .0
1 .0
1 5 .0
1 0 .0
0 .5
5 .0
0 .0
0 .0
2 0 0 0
2 0 0 7
2 0 0 8
JA N
F E B
M A R
A P R
M A Y
JU N
JU L
A U G
S E P
O C T
N O V
D E C
AIR
GREENHOUSE GAS (GHG) TOTAL (Mt) & GHG EMISSION EFFICENCY (t/MWh)
GHG Mt
‹ GHG
t/MWh
1990
2000
2001
2002
2003
2004
2005
2006
2007
2008
1.42
1.23
1.27
1.50
1.45
1.47
1.31
1.49
1.40
1.39
1.34
1.24
1.19
1.21
1.21
1.20
1.21
1.20
1.18
1.20
2
1600000
1 .8
1400000
1 .6
1 .4
1 .2
1200000
1000000
1
800000
0 .8
600000
0 .6
400000
0 .4
0 .2
0
200000
0
ANGLESEA ENVIRONMENT REPORT AUGUST 2008
environmental improvement
Environmental Management Targets
August
2008 YTD
Forecast
2008 Target
Reportable Environmental Incidents
0
0
0
0
Monthly EHS ASAT Audit Completion (%)
100
100
100
90
Air Emission Targets
August
2008 YTD
Forecast
2008 Target
Ambient SO2 ( no. readings > 200ppb)
0
0
0
0
Stack SO2 (no. hrs > 100kg/min)
0
0
0
0
SO2 Load Reductions (lost MWh)
998
10879
16319
N/A
GHG Efficiency (t CO2 e/MWh)
1.22
1.20
1.20
1.20
Opacity (10 min av > 0.25g/m normal operation)
0
0
0
0
Water Targets
August
2008 YTD
Forecast
2008 Target
Town Water (ML)
2.2
11.2
16.8
14.2
Bore Water (ML)
196
2147
3221
2370
Waste Targets
August
2008 YTD
Forecast
2008 Target
Waste to Landfill (t)
0.0
4.5
6.8
8.0
Solid Prescribed Waste to Landfill (t)
0.0
0.0
0.0
0.0
3
Mine Rehabilitation Targets
2008 YTD
2008 Target
2008 Area to Clear (ha)
0.0
0.0
2008 Area to Rehabilitate (ha)
0.0
0.0
2007 Mine Rehabilitation Species Richness (%)
N/A
100
OUR ENVIRONMENT AND OUR EMPLOYEE
Congratulations Neil on winning the site’s Make an Impact
competition. Was this your first experience using the Make
an Impact calculator? This was the first time I used the
calculator and a thank you to Maryann who help me work my
way through it.
Any specific initiatives at home that have reduced your
carbon footprint? When the small Bayonet Cap fluro globes
came on the market we replaced all of our candle globes. Not
only were they cheaper to run, I really can’t recall replacing them
whereas the candle globes would blow every 2 -3 weeks ending
up in landfill. We have always been conscious of the energy
rating and yearly running costs that are on the front of appliances
when purchasing them. Draughts were a problem living in the
country so door seals were installed. And good quality drapes on
the windows which helps with not only keeping the warmth in but
keeping the house cool in the summer months.
What is your advice to others about the Make an Impact
program? The Make an Impact program is a great reminder of
your carbon footprint (the black balloons we see on TV), how to
be mindful of the type of appliances you select (hot water units,
dishwashers, air conditioners) and the way you use them.
...NEIL CARLSON
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