Wambo Coal AEMR 2011-2012 - Peabody Energy

2011-2012 AEMR
3.2.1.2 Penalty Infringement Notice
WCPL received a Penalty Infringement Notice (PIN)
on the 12 June 2012 as a result from a site
inspection on the 4 May 2012 by the DP&I. The PIN
was in relation to excessive wheel generated dust
witnessed during the site inspection. For further
details regarding this matter please refer to Section
3.20.2.
3.2.1.3 Dust Suppression Trials
During the reporting period WCPL commenced
trailing a dust suppressant on internal haul roads, a
control recommendation identified in the best
practice assessment for particulate matter control.
The name of the dust suppressant is called
Petrotac.
Petrotac application on haul road at Wambo
Petrotac is an emulsion that is sprayed on semi
permanent roads to reduce dust. It works by
soaking through the surface of the road and bonding
the aggregate particles together. WCPL
commenced a trial of Petrotac dust suppression
product on a portion of our main haul road during
April 2012.
The trial showed signifcant reduction in dust
emissions and improved road stability in wet and dry
weather conditions. Plans are in place to roll the out
Petrotac product to a greater area of the main haul
road. Some of the advantages identified during the
tial include:
It is stable and environmentally safe;
Requires only occassional maintenance
following the initial application; and
3.2.2 Environmental Performance
All air quality monitoring conducted at WCPL during
the 2011-2012 reporting period was measured and
monitored against the impact assessment criteria
stipulated in Consent Condition 2, Schedule 4 of DA
305-7-2003 and in accordance with EPL 529, which
apply at any privately owned residences as follows:
Total suspended particulates (TSP) Annual
Average Impact Assessment criteria less than
90 µg/m 3 ;
Particulate matter less than 10µm in size (PM 10)
annual average assessment criteria less than
30 µg/m 3 ;
PM 10 24 hour assessment criteria of less than
50 µg/m 3 ;
Deposited dust annual average assessment
criteria less than 4 g/m2/month; and
Deposited dust maximum increase in deposited
dust level of less than 2 g/m2/month.
In accordance with Condition 5(b), Schedule 6 of
DA 305-7-2003, a comparison of the air quality
results for the reporting period at any privately
owned land were compared against the modelled
predictions in the 2003 Environmental Impact
Statement (2003 EIS) (see Section 3.2.2.1).
3.2.2.1 Air Quality EIS Predictions
Table 3.0 provides a summary of predicted
concentrations from the 2003 EIS for Year 7 of the
project. Considering the variability regarding the
conceptual mine plans used in the 2003 EIS air
quality model, the location of receptors in the model
versus the actual location of WCPL air quality
monitoring stations, the results from 2011-2012
monitoring are generally comparable with exception.
The annual average PM 10 results are below the
concentrations predicted in the EIS, however the
annual average for TSP are higher. The annual
average results for dust deposition are also
marginally higher.
Table 3.0 EIS Predicted Dust Concentrations
Air Quality
Station*
Receptor
ID No.
24-hour
PM10
ug/m 3
Annual
PM10
ug/m 3 .
Annual
TSP
ug/m 3 .
Annual dust
deposition
g/m 2 /month
AQ3 37 38.4 18.5 20.2 0.38
AQ4 40 46.7 29.1 32.8 0.73
Note: * Nearest to receptor location from model
Will be used in conjunction with other
management practices to reduce dust
generation on site.
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