Meeting Presentation - Company Report & Overview of - PowerPoint PPT Presentation

Stratford Coal CCC Meeting Presentation - Company Report & Overview of Activities April 2014 Jo Wiffen Environmental Officer

Table of Contents Title 1. Agenda Item 7a (Progress at Mine) 2. Agenda Item 7b (Environmental Projects/Activities) 3. Agenda Item 7c (Environmental monitoring performance) 4. Agenda Item 7d (Community complaints) 5. Agenda Item 7e – (Other matters) 2

1. Progress at the Mine Mining 1 st Quarter 201  Waste BCM 113,000 BCM  Coal tonnes 228,000 tonnes  Total BCM 275,000 BCM  BRN coal remaining to be mined approx 110k t and scheduled for completion about June 14. 28 April 2014 3 3

2. Environmental Projects/Activities Management Area Project Status • Pollution Reduction Programs • PRP U2 Haul road wheel generated dust monitoring – Three Air Quality rounds of monitoring completed with control efficiencies of 92%, 92% and 93%. Final report to demonstrate 80% control efficiency to be sent to EPA in August 14. • PRP U3 Handling overburden in adverse weather conditions – Performance indicators for adverse weather conditions have been developed and weather station alarming established. Following an alarm being received an investigation would be undertaken to determine the need for any management measures. • Real-Time Dust Management • No verified alarms have been received. • 2014 Noxious Weed Program • Commenced April – focusing on Giant Parramatta Grass & Flora Blackberry • 2014 Wild Dog Control Program • Commenced April 2014 (trapping) Fauna • Scheduled to be repeated later in 2014 • Roseville West Pit • Last blast completed 29 August 2013 – 24 blast for 2013, no Blast licence criteria exceedances • BRN Pit • Blasting ongoing – 3 blasts for 2014, no licence criteria exceedances Noise Mitigation works:- • CAT988 loader to 110dB • Complete • 5m ROM barrier; stockpiles maintained at 5m • Complete height • Secondary crusher to 106 dB • Full replacement completed • Maintain southern coal stockpile at 137RL • Complete • Increase noise bund southern side of CHPP by • Complete 3m 28 April 2014 4 4

2. Environmental Projects/Activities – cont. Management Area Project Status • CAT D10 dozer to 110dB • Complete Noise • New conveyors to be consistent with current low • Ongoing noise technology • Duralie train unloading facility • Alsynite replaced with standard sheeting (complete). • Rail loop acoustic barriers • Complete August 2013. • Noise assessment conducted with reductions of 9-16 dB recorded. • Low noise idlers on CV18 and CV17 • Complete; 6dB gain achieved per conveyor • Enclosure on coal loader • Completed February 2014. • Real-Time Noise • System operational. No alarms received in last quarter. Real-time noise monitoring profiles continue to be monitored and indicate no exceedence of the performance criteria due to mining operations. • Lighting optimisation (reductions) • Implementation of change to prevent daytime use of Lighting exterior CHPP lighting. • Further optimisation work planned for night-time operations • Stockpile lighting now controllable, lights turned off during the day • Roseville West Pit • 5 Ha cover crop of millet established, planting of additional Rehabilitation pasture grasses completed • BRN Pit • Planting of 13 Ha of native plant species completed • Old Main Pit • Reshaping of southern edge of main pit in progress, planting of cover crop upon completion of shaping – May. 28 April 2014 5 5

3. Environmental Monitoring Performance 1. Rainfall 2. Surface Water a. Total Suspended Solids b. pH c. Electrical Conductivity Main Pit 3. a. pH b. Electrical Conductivity c. Sulphate 4. Reject Monitoring Air Quality 5. a. Dust Deposition b. Dust Deposition – Petrographic Analysis c. High Volume Air Sampler d. High Volume Air Sampler-Rolling Average e. Real Time Dust Monitoring (TEOM) – PM2.5/PM 10 Blasting 6. a. Bowens Road North b. Roseville West 28 April 2014 6 6

Rainfall Rainfall 2003 - 2014 1400 Average 2003 1200 2004 2005 1000 2006 800 2007 Rainfall (mm) 600 2008 2009 Average 400 2010 2005 200 2011 2008 Year 2012 0 2011 2013 2014 2014 Month 28 April 2014 7 7

Surface Water – Total Suspended Solids Total Suspended Solids (TSS) - Avon River/Avondale Creek March 2013 - March 2014 40 35 30 25 TSS (mg/L) W1 20 W2 W4 15 W5 W6 10 5 0 Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Sampling Month • All sites returned generally low TSS • Gaps indicate no flow 28 April 2014 8 8

Surface Water - pH pH - Avon River/Avondale Creek March 2013 - March 2014 9 8 7 6 W1 5 pH W2 4 W4 3 W5 W6 2 1 0 Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Sampling Month • All sites within ANZECC Guideline range. • No obvious trending toward ANZECC Guideline limits • Gaps indicate no flow 28 April 2014 9 9

Surface Water – Electrical Conductivity Electrical Conductivity - Avon River/Avondale Creek March 2013 - March 2014 1600 1400 Electrical Conductivity (µS/cm) 1200 1000 W1 800 W2 W4 600 W5 W6 400 200 0 Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Sampling Month • Gaps indicate no flow 28 April 2014 10 10

Main Pit - pH Stratford Main Pit pH April 2013 - March 2014 10.00 9.00 8.00 pH 7.00 6.00 5.00 4.00 Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Sampling Month • Results show neutral pH; no decrease trend in pH 28 April 2014 11 11

Main Pit – Electrical Conductivity Stratford Main Pit Electrical Conductivity April 2013 - March 2014 4500 4000 Electrical Conductivity (µS/cm) 3500 3000 2500 2000 1500 1000 500 0 Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Sampling Month • All results within expected range. 28 April 2014 12 12

Main Pit - Sulphate Stratford Main Pit Sulphate April 2013 - March 2014 1600 1400 1200 Sulphate (mg/L) 1000 800 600 400 200 0 Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Sampling Month • All results within expected range. 28 April 2014 13 13

Reject Sampling Stratford Main Pit Reject Monitoring March 2013 - March 2014 10 9 8 7 6 Site 1 5 Site 2 pH Site 3 4 Site 4 3 Site 5 2 1 0 Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Sampling Month • pH within expected range • No access January, April & June to October • Faulty pH probe in March – Reject Beach limed 12 March 28 April 2014 14 14

Air Quality – Dust Deposition Monthly Dust Deposition April 2013 - March 2014 4.5 4.0 3.5 Dust Deposition (g/m²/month) 3.0 D5 Straford Village D6 Mine 2.5 D7 Isaac D8 Bramley 2.0 D9 Craven D10 Williams 1.5 D11 Ellis EPA Limit 1.0 0.5 0.0 Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Sampling Month • All sites below EPA limit • Samples with significant contamination excluded 28 April 2014 15 15

Air Quality – Petrographic Analysis Sample Deposit Coal Minerals; Insect & Samples are examined under a stereo-microscope (50x) to determine the nature quartz, Plant of the dust deposits. clay, etc. Remains The relative amount of dust deposits on the filter paper is described as: Trace -traces only on filter paper D5 Very light Angular to sub- Sub-angular to Mainly plant Light -thin cover over most of the filter paper rounded. rounded. fragments, PETRO Moderate -thin cover over filter paper (19/12/13 - minor insect 17/01/2014) fragments. Heavy -thicker cover over filter paper 0.2 - <0.01 mm; 0.25 - <0.01 generally mm; <0.1mm. generally The dust is grouped into: -coal <0.1mm. -inorganic (clays, etc.) Light -insect and plant remains grey/brown Minor, 10% - Minor, 20% - Major, 60% - 15% 25% 70% D5 Very light Angular to sub- Sub-angular to Mainly plant The proportions are described as: PETRO rounded. rounded. fragments, (17/01/2014 minor insects Major - >30% - & insect 17/02/2014) Minor - 5% - 30% 0.3 - <0.01 mm; 0.2 - <0.01 mm; fragments. generally 0.1 - generally Trace - <5% 0.2 mm. <0.1mm. Slight trace- <1% Light grey/brown Minor, 5% - 7% Minor, 15% - Major, 70% - Note: Estimated percentages are considered as: 20% 80% D5 Very light Angular to sub- Sub-angular to Mainly insects 5% +/- 2% PETRO rounded. rounded. and fragments, 10% +/- 5% (17/02/14 - insect 30% to 80% +/- 10% 17/03/14) fragments 90% +/- 5% 0.2 - <0.01 mm; 0.2 - <0.01 mm; minor. generally generally 95% +/- 2% <0.1mm. <0.1mm. Light grey Trace, 2% - 3% Minor, 15% - Major, 75% - 20% 80% 28 April 2014 16 16

Air Quality – High Volume Air Sampler High Volume Dust Monitoring - Particulate Matter (PM10) March 2013 - March 2014 60.0 Particulate Matter PM10 (µg/m³) 50.0 40.0 Stratford Craven 30.0 Ellis 20.0 Clarke NEPM 24 hr 10.0 Avg 0.0 Sampling Date • All sites generally well below NEPM 24hr average level. • Spike in October due to smoke from Hunter Valley fires being blown up into Gloucester Valley. 28 April 2014 17 17