2007 09 september

what’s new pussycat?
wild-life in the anglesea heath
alcoa anglesea
2007
environment report
september
ANGLESEA ENVIRONMENT REPORT SEPTEMBER 2007
air
Air Monitoring
Stack Monitors
Average
Maximum
Opacity g/m3 10-minute average
0.060
0.271
Stack SO2 kg/min 1-hour average Licence limit 100kg/min
63.87
79.95
SO2 1 hour ppb
Average
Maximum
Community Centre
3
112
Primary School
4
142
Mt Ingoldsby
2
126
Scout Camp
10
157
Camp Wilkin
4
201
Camp Road
4
160
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
Community Centre 3 4 3 2 3 12 3 3 95 26 1 3 91 2 2 20 3 3 112 2 2 3 106 3 2 3 3 3 3 2
Primary School
0
0
0
1
2
Mt Ingoldsby
3
2
2
4
76 26 8
9
14 126 2
Scout Camp
53 -
-
2
2
7
21 24 43 17 3 143 58 85 72 2
Camp Wilkin
1
1
1
2
98 142 9
Camp Road
8
0
1
1
2
EPA Intervention Level
210
EPA Air Quality Objective
200
Alcoa Local Standard
170
1
2
1
35 68 50 134 1
5
10 29 42 1
21 9
19 141 0
2
27 1
5 138 0
20 129 1
1
1 142 1
1
5
1
2
0
0
6
0
0
36 0
16 11 155 0
5
6
4
28 32 125102157
12 1
1
1
84 1
1
17 2
37 33 26 0 145127 0
2
0
74 0
0
2 125 20 159 2
2 121 3
2 201 3
2
4
74 2
1 150 1
5
4
0
12 1
0
1
1
1
0
0
1
1
ANGLESEA ENVIRONMENT REPORT SEPTEMBER 2007
water
Water Storage
Barwon Water storage levels for the Geelong system at 28.8% capacity. Stage 4 restrictions apply.
Water Discharge
ML
September
Total
Ashponds (SP1)
113
1217
Mine (SP4)
0
0
Water Monitoring
SP1
SP4*
SP3
18/09/2007
Ashpond
Mine
Final
EPA limit
Lab Result
EPA limit
Lab Result
EPA limit
Lab Result
pH
4-10
8.6
3-9
3.3
5-9
7.1
Susp. Solids
100
4
100
2
30
<2
Colour
50
5
50
4
50
4
Aluminium
10.00
0.14
10.0
1.4
5.500
0.057
Iron
10.00
0.25
20.0
7.3
4.000
0.056
Zinc
0.400
0.016
2.000
0.080
0.300
0.020
* Although there was no formal discharge, a broken pipe did see a leakage of mine water at SP4 thus a full set of
analysis was completed.
WATER WATER USAGE PER MONTH (ML)
Date
JAN
FEB MAR APR
MAY JUNE JULY AUG
SEPT OCT
Town Water
0.7
0.7
0.9
1.1
0.9
2.3
1.7
1.9
1.4
11.6
Bore Water
274
253
280
241
246
182
205
227
221
2129
Mine Water
81
71
76
83
80
86
98
87
87
749
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 SEPTEMBER 2007
feral cats
Feral cats (Felis catus) probably became
established in Australia soon after the arrival of the
first Europeans. However, they may have arrived
earlier via the trading routes from south-east Asia,
shipwrecks or visits by European ships, especially
on Australia’s west coast.
Feral populations now occupy most parts of the
mainland, Tasmania and some offshore islands.
Feral cats are believed to be responsible for the
extinction or decline of native marsupials and birds
in Australia. They have caused the extinction of
several wildlife species on islands and contributed
to the disappearance of many ground dwelling
birds and mammals on the mainland. They are
listed as a known or perceived threatening
process for 58 native species under the
Environmental Protection and Biodiversity
Conservation (EPBC) Act 1999.
For management purposes, cats are divided into
three categories — domestic, stray and feral —
although individual cats may move between
categories. Domestic cats are owned and cared
for and stray cats are those found roaming cities,
towns and some rural holdings. Feral cats, which
survive without any human contact or assistance,
are the main target of control programs.
Although many agencies and organisations
commit significant resources to managing feral
cats, there is little reliable information on the
impacts of feral cats, or on the benefits of
controlling feral cats.
This situation is at least partly due to uncertainty
about the ability to accurately and precisely
estimate the relative or absolute abundance of feral
cats or the impact of control operations on
populations. Feral cats may occur at very low
densities in some habitats and a large proportion
of the population may be averse to detection
meaning there are few techniques for estimating
the absolute abundance of feral cats. Other
techinques that are used to assess fox and rabbit
populations, such as spotlighting, are unlikely to
detect anything with such discrete populations.
However a research project currently being
conducted in the Anglesea Heath may change all
that.
Researchers for the Department of Sustainability
and Environment’s Arthur Rylah Institute are
evaluating the methods of estimating the
abundance of feral cats with the aim of providing
recommendations for a national monitoring
protocol to estimate the absolute and relative
abundance of feral cats.
The research is investigating current methods
used to estimate the abundance of feral cats track
counts (recording tracks of feral cats on sand
plots) and capture (cage and/or leg traps) as well
as new techniques such as motion/heat detection
sensor cameras and hair collection devices for
DNA-based analysis.
Sounds like the purrfect setup to find an Otway
panther......
ANIMALS OF THE ANGLESEA HEATH
FERAL CAT (Felis catus)
Size:
Description:
Distribution:
Food:
similar size to a typical suburban domestic
cat with an average adult weight of 4.5kg
the most common coat colour of feral cats
is striped tabby but blotched tabby and
black are also common
feral cats are now found in most habitats on
the mainland, Tasmania and many offshore
islands, although not in the wettest
rainforests
feral cats are carnivores and can survive
with limited access to water; generally eat
small mammals but also catch birds,
reptiles, amphibians, insects and fish; in
pastoral regions they feed largely on young
rabbits but in other areas feral cats prey
mainly on native animals; it is estimated feral
cats kill on average ten wildlife items each
week
FERAL CAT
ANGLESEA ENVIRONMENT REPORT SEPTEMBER 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
31.0
37.1
129.4
52.8 17.0
69.2
40.8 43.6
124.0
26.0
47.2
15.8
15.4
29.0
453.6
1968-2006 Average
44.6
43.3 41.5
42.5
53.1
53.5
61.2 60.8
59.6
59.3
61.1
60.6
68.3
73.6
54.1
44.2
498.0
67.0
65.8
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 .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
1 0 . 4 0.6
0.6
0.8
1.0
1.1
0.8
0.9
0.6
2.2
0.6
1.5
0.7
1.7
1.2
1.3
1.5
1.5
Amenity2 . 5
11.6
3.8
1.2
0.1
0.1
0.2
0.1
0.4
0.1
0.7
0.2
0.1
0.4
0.2
0.4
0.2
0.2
0.3
0.3
0.1
0.1
4 0 .0
3 5 .0
2 .0
3 0 .0
2 5 .0
1 .5
2 0 .0
1 .0
1 5 .0
1 0 .0
0 .5
5 .0
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
1.37
1.34
1.24
1.19
1.21
1.21
1.20
1.21
1.20
1.18
2
1 6 00 00 0
1 .8
1 4 00 00 0
1 .6
1 .4
1 .2
1 2 00 00 0
1 0 00 00 0
1
8 0 00 00
0 .8
6 0 00 00
0 .6
4 0 00 00
0 .4
0 .2
0
2 0 00 00
0
ANGLESEA ENVIRONMENT REPORT SEPTEMBER 2007
environmental improvement
Environmental Management Targets
September
2007 Total
Forecast
2007 Target
Reportable Environmental Incidents
1
3*
4
0
Monthly EHS ASAT Audit Completion (%)
100
100
100
90
* The Alcoa Corporate Compliance Group have reviewed the SO2 incidents incurred since 2002, all incidents have
now been reclassified from breaches of the Alcoa Local Standard to Non Compliance with Laws and Regulations.
Air Emission Targets
September
2007 Total
Forecast
2007 Target
Ambient SO2 ( no. readings > 210ppb)
1
3
4
0
Ambient SO2 ( no. readings > 200ppb)
1
4
5
0
Stack SO2 (no. hrs > 100kg/min)
0
0
0
0
SO2 Load Reductions (lost MWh)
7428
18532
24710
N/A
GHG Efficiency (t CO2 e/MWh)
1.15
1.18
1.18
1.20
Opacity (10 min av > 0.25g/m normal operation)
0
0
0
0
Water Targets
September
2007 Total
Forecast
2007 Target
Town Water (ML)
1.4
11.6
15.5
14.2
Bore Water (ML)
221
2130
2840
2667
Waste Targets
September
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
2007 Area Cleared (ha)
2.9
3.5
2007 Area Rehabilitated (ha)
5.0
> 3.5
2005 Mine Rehabilitation Species Richness (%)
103
100
OUR ENVIRONMENT..OUR RESEARCH PARTNERS
Alan, what does the job of a Senior Scientist with ARI
look like? My job involves initiating and leading research projects
aimed at providing robust evidence that informs and supports the
development of broader land management policy for DSE and a
range of external clients. I am currently working on assessing
methods for measuring changes in abundance of feral cats, the
safe and effective use of aerial baiting for the control of wild dogs,
and assessing the effectiveness of broad-scale fox control. I also
provide advice to the Eastern Barred Bandicoot recovery team.
Out and about in the forests of Victoria....any panther
sightings? Introduced feral predators are my area of expertise. I
have seen a few strange things in the bush, but never anything like
a panther. I suspect not many people have seen a panther in the
wild, so it’s hard to know what people have seen. I certainly think
people believe they have seen a large cat-like creature, but belief
and fact are two different things. Until somebody actually has one
in the hand it will remain in the realms of big foot and the yeti.
We hope your enjoying your time in the Anglesea
Heath? The heath is a fantastic place, it has a great diversity of
flora and fauna and the general setting is certainly ideal for undertaking field work. We hope that our research will enable Parks
Victoria and Alcoa to effectively manage the impact of feral cats.
...ALAN ROBLEY
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