Centennial Ivanhoe No2 Colliery. Environmental Monitoring Data

Transcription

1 Centennial Ivanhoe No2 Colliery Environmental Monitoring Data October 2012

2 TABLE OF CONTENTS 1. INTRODUCTION RAINFALL AIR QUALITY MONITORING Depositional Dust SURFACE WATER QUALITY INCIDENTS COMPLAINTS... 5 Appendix 1 - Monitoring Site Locations...6. TABLES Table 1 Licence Information...1 Table 2 Supporting Information for Monitoring Points...1 Table 3 Rainfall Summary...2 Table 4 Depositional Dust...2 Table 5 Water Quality Monitoring Results...4 FIGURES Figure 1 Monthly Dust Deposition...2 Figure 2 LDP004 ph...3 Figure 3 LDP004 Oil & Grease...4

3 1. INTRODUCTION As per conditions M1 to M6 of EPL 631, this report summarises environmental monitoring results for Ivanhoe No2 Colliery for the October 2012 period. Monitoring sites are shown on the Ivanhoe No2 Site section of the Centennial website and in Appendix 1. A summary of the licence information is provided in the following tables. Table 1 shows the license information and Table 2 summarises the dates and units for monitoring data for the reporting period. LDP002 and LDP004 did not discharge during the reporting period and therefore sampling of discharge was not required. Table 1 Licence Information Environment Protection Licence number Licensee s Name Licensee s Address Link to full license on the EPA website 631 Ivanhoe Coal Pty Ltd Level 18, BT Tower, 1 Market Street Sydney NSW 2000 EPL Table 2 Supporting Information for Monitoring Points Parameter Monitoring Frequency Unit of September 12 Measure Sampling Date Data Obtained Depositional Dust DG1 Monthly g/m2/month 15-Oct Nov-2012 LDP002 (Point 2) Oil & Grease Monthly during discharge mg/l No discharge NA LDP002 (Point 2) ph Monthly during discharge ph units No discharge NA LDP002 (Point 2) Total Suspended Solids Monthly during discharge mg/l No discharge NA LDP002 (Point 2) Filterable iron Monthly during discharge mg/l No discharge NA LDP004 (Point 4) Oil & Grease Monthly during discharge mg/l No discharge NA LDP004 (Point 4) ph Monthly during discharge ph units No discharge NA 1

4 2. RAINFALL A summary of rainfall data recorded at the on-site meteorological monitoring station during the reporting period is shown in Table 3 below. Total rainfall is measured on site. Median and Mean rainfall are taken from the long term monthly averages for the Bureau of Meteorology s Lithgow (Birdwood Street) station Table 3 Rainfall Summary Month Total Rainfall (mm) Median Rainfall (mm) Mean Rainfall (mm) Apr May Jun Jul Aug Sep Ocr AIR QUALITY MONITORING The air quality monitoring results for the reporting period are summarised below. 3.1 Depositional Dust A depositional dust (g/m2/mth) result (insoluble solids) for October 2012 is shown in Table 4. Table 4 Depositional Dust April 2012 May 2012 June 2012 July 2012 August 2012 September 2012 October 2012 Dust Gauge A graphical representation of depositional dust monitoring data since April 2012 is shown below in Figure 1. 2

5 Figure 1 Dust Gauge 1 Depositional Dust Although EPL631 does not apply a dust limit, a rolling average air quality criteria of 4 g/m 2 /mth is commonly used for comparison purposes. 3

6 4. SURFACE WATER QUALITY Surface water ph, Total Suspended Solids, Filterable Iron and Oil & Grease are monitored at LDP002 during discharges (Table 5). Surface water ph and Oil & Grease are monitored at LDP004 during discharges (Table 5 and Figures 2 & 3). There were no discharges from LDP002 or LDP004 in October 2012 therefore no monitoring of discharge required for this month. The following table and figures are provided for reference only. Discharge Point Table 5 Water Quality Monitoring Results Parameter Unit of Measure EPA Limit October 2012 Results LDP002 ph ph NA LDP002 Total Suspended Solids mg/l 30 NA LDP002 Filterable Iron mg/l 3 NA LDP002 Oil & Grease mg/l 10 NA LDP004 ph ph NA LDP004 Oil & Grease mg/l 10 NA Figure 2 - LDP004 ph 4

7 Figure 3 LDP004 Oil & Grease 5. INCIDENTS No environmental incidents were recorded at the Ivanhoe No2 Colliery site in October COMPLAINTS No complaints were received in regard to the Ivanhoe No2 Colliery site in October

8 APPENDIX 1 Monitoring Site Locations 6

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10 Centennial Coal Company Limited PO Box 42 Wallerawang