200703

cart it up!!
love the smell of mulch in the morning
alcoa anglesea
2007
environment report
march
ANGLESEA ENVIRONMENT REPORT MARCH 2007
air
Air Monitoring
Stack Monitors
Average
Maximum
Opacity g/m3 10-minute average
0.074
0.308
Stack SO2 kg/min 1-hour average Licence limit 111.34kg/min 66.92
87.09
Ambient Monitors
SO2 1 hour ppb
Average
Maximum
Community Centre
5
69
Primary School
2
186
Mt Ingoldsby
1
44
Scout Camp
3
138
Camp Wilkin
1
80
Camp Road
3
101
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 4 4 4 5 5 4 5 5 5 6 5 5 5 5 56 5 6 7 5 6 6 6 11 6 6 6 69 7 39 3 3
Primary School
0
1
1
0
1
0
20 1
0
1
2
0
0
0
72 1
0
0
3
16 3
43 186 0
0
1
4
72 0
0
0
Mt Ingoldsby
1
1
1
1
1
0
1
1
1
2
3
1
1
1
1
2
1
1
3
3
2
0
0
Scout Camp
0
0
0
0
0
0
43 0
1
2
19 0
0
0
46 3
1
1
4
Camp Wilkin
2
2
2
2
3
2
3
2
1
2
2
1
1
1
2
1
1
1
Camp Road
3
3
57 3
4
3
54 1
1
2
2
2
1
1 101 2
3
3
EPA Intervention Level
210
Alcoa Local Standard
170
6
2
0
0
2
15 44 1
19 5
18 4
2
2
3
3
3
3
1
1
1
2
37 80 1
1
1
4
13 2
39 96 2
2
3
3
2
2
2
2
8 138 96 3
96 3
ANGLESEA ENVIRONMENT REPORT MARCH 2007
water
Water Storage
Barwon Water storage levels for the Geelong system at 15.8% capacity. Stage 4 restrictions apply.
Water Discharge
ML
March
Total
Ashponds (SP1)
154
431
Mine (SP4)
0
0
Water Monitoring
SP1
SP4
SP3
16/03/2007
Ashpond
Mine
Final
EPA limit
Lab Result
EPA limit
Lab Result
EPA limit
Lab Result
pH
4-10
8.0
3-9
-
5-9
7.5
Susp. Solids
100
<2
100
-
30
<2
Colour
50
5
50
-
50
4
Aluminium
10.00
0.13
10
-
5.50
0.04
Iron
10.00
0.19
0
-
4.00
0.15
Zinc
0.40
< 0.01
2.0
-
0.30
< 0.01
WATER WATER USAGE PER MONTH (ML)
Date
JAN
FEB MAR APR
Town Water
0.7
0.7
0.9
2.3
Bore Water
274
253
280
807
Mine Water
81
71
76
228
MAY JUNE JULY AUG
SEPT OCT
NOV
DEC
TOTAL
300.0
3000
250.0
2500
200.0
2000
150.0
1500
100.0
1000
50.0
0.0
500
0
ANGLESEA ENVIRONMENT REPORT MARCH 2007
mine rehabilitation
Ah, it’s that time of year again - mine rehabilitation
season. You know when the autumn leaves turn
from green to gold, the sky is a brilliant, cloudless
blue and the mornings feel crisp that it’s time to....
warm up the mulcher!!
The harvesting of the understorey for mulch was
the first mine rehabilitation task on the agenda.
This basically involves slashing the
understorey with a mulcher with the material
collected in the trailer behind. This is then stored
undercover to be spread on the rehab area
later in the process. After missing out on the
mulching task last year due to some badly aligned
annual leave, Wayne Lee was back in the drivers
seat weaving the tractor through the heathy
woodland collecting as much mulch as possible.
As the understorey was collected, Brent Lee
delicately cleared the strip area of the overstorey
with the D10 dozer. Don’t try this at home folks,
delicate ain’t easy to do with a D10. And a
delicate operation it is. With the most valuable
seed source for the mine rehabilitation located
within the first five centimetres of the soil, churning
up of the topsoil needs to be minimised. The trees
are currently stockpiled and will be placed in the
mine rehabilitation area this year to assist with
erosion control and provide fauna habitat.
After clearing, a foot survey of the strip area was
conducted for archaeological sites by TerraCulture
and a member of the Wathaurong Cooperative.
No artefacts were located in the strip area.
And that’s where the mine rehabilitation update
ends for this month. The slope within the open cut
for the 2007 rehabilitation season is still in the
process of turning from overburden dump into
rehabilitation slope. A long and difficult process
with overburden carted between the furthest
extremes of the open cut. Stay tuned next month
as the scrapers arrive and get some soil on the
move.
Plan
ANIMALS
OF THE ANGLESEA HEATH
LESSER LONG-EARED BAT (Nyctophilus geoffroyi)
Nyctophilus
Nyctophilus....from Greek nyktos, night, and philein, loves,
referring to a bat’s noctural habit
geoffroyi
geoffroyi...after french zoologist Etienne Geoffroy Saint-Hilaire
Weight:
Description:
6 -8 g
light grey-brown above, paler below, fluffy
fur; ears are very long, joined together above
forehead like other Nyctophilus species
Distribution:
widespread and abundant over most of
Australia
Habitat:
hollows, under the bark of trees, old fairy
marten nests; adapted well to a human
presence even found in urban and inner city
environments roosting in ceilings, ununsed
roller doors and canvas awnings
Diet:
hunting near the ground they catch flying
insects in flight and off the ground or leaves
Did you know? Lesser long-eared bats can tolerate extreme
heat and have been found in places >40°C
LESSER LONG-EARED BAT
ANGLESEA ENVIRONMENT REPORT MARCH 2007
LAND
RAINFALL (mm)
Month
JAN
FEB MAR APR
MAY JUNE JULY AUG
SEPT OCT
NOV
DEC
TOTAL
2007 Rainfall
40.0
20.2 25.6
7.3
37.1
129.4 17.0
40.8
26.0
32.8
15.8
15.4
29.0
85.8
1968-2006 Average
44.6
43.3 41.5
42.5
53.5
59.3 60.8
61.1
67.0
69.3
73.6
54.1
44.2
129.4
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 .0 0
WATER
TOWN WATER USE (ML)
FEB
MAR APR
MAY
JUN
JUL
AUG SEP
OCT
NOV
DEC
Process
23.9
2000 2006 2007 JAN
11.0
2.0
0.6
0.6
0.8
1.1
0.9
0.6
0.6
0.7
0.6
1.3
1.5
1.5
Amenity2 . 0
11.6
3.8
0.3
0.1
0.1
0.2
0.1
0.4
0.7
0.2
0.4
0.4
0.3
0.3
0.3
0.1
4 0 .0
1 .8
3 5 .0
1 .6
3 0 .0
1 .4
2 5 .0
1 .2
2 0 .0
1 .0
0 .8
1 5 .0
0 .6
1 0 .0
0 .4
5 .0
0 .2
0 .0
0 .0
2000
2006
2007
JA N
F E B
M A R
A P R
M A Y
JUN
JU L
A U G
S E P
O C T
NO 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
1.42
1.23
1.27
1.50
1.45
1.47
1.31
1.49
1.43
1.34
1.24
1.19
1.21
1.21
1.20
1.21
1.20
1.21
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 MARCH 2007
environmental improvement
Environmental Management Targets
March
2007 Total
Forecast
2007 Target
Reportable Environmental Incidents
0
0
0
0
Monthly EHS ASAT Audit Completion (%)
100
100
100
90
Air Emission Targets
March
2007 Total
Forecast
2007 Target
Ambient SO2 ( no. readings > 210ppb)
0
0
0
0
Stack SO2 (no. hrs > 100kg/min)
0
0
0
0
SO2 Load Reductions (lost MWh)
458
2125
8500
N/A
GHG Efficiency (t CO2 e/MWh)
1.24
1.21
1.21
1.20
Opacity (10 min av > 0.25g/m normal operation)
0
0
0
0
Water Targets
March
2007 Total
Forecast
2007 Target
Town Water (ML)
0.9
2.3
9.2
14.2
Bore Water (ML)
280
807
3228
2667
Waste Targets
March
2007 Total
Forecast
2007 Target
Waste to Landfill (t)
0.0
0.0
0.0
9.0
Solid Prescribed Waste to Landfill (t)
0.0
0.0
0.0
0.0
3
Mine Rehabilitation Targets
2007 Total
2007 Target
2006 Area Cleared (ha)
2.9
3.5
2006 Area Rehabilitated (ha)
0.0
> 3.5
2005 Mine Rehabilitation Species Richness (%)
N/A
100
OUR ENVIRONMENT AND OUR EMPLOYEES..
Lisa - this is your second stint at Anglesea, what
have you been doing in between?
Since I was here in 2003 I have worked as the
Environmental Consultant at both Point Henry and Portland
Smelters. Whilst it has been difficult moving positions so
frequently, it has given me a good insight into how the
different locations operate. I have also taken 12 months off
on maternity leave during 2006.
And what does the future hold?
I am heading back to Point Henry in the next few weeks to
take up the position of Quality Manager for the Vic Ops
Environment and Occupational Hygiene groups.
Your impr
ession/highlights of your time at
impression/highlights
Anglesea?
Anglesea has been my favorite location to work at. I like the
‘can do’ attitude everyone has. Everyone has been so willing
to help me when needed.
...LISA MILLS
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