july - july 2011 environmental monitoring...

CENTENNIAL MYUNA

Environmental Monitoring Data

September 2015

July - July 2011

Environmental Monitoring Data

2

TABLE OF CONTENTS

1. Introduction ............................................................................................................................................................. 5

2. Surface water quality ........................................................................................................................................... 6

3. Water volume .......................................................................................................................................................... 8

4. Air Quality Monitoring ......................................................................................................................................... 9

4.1 Depositional Dust ............................................................................................................... 9

4.2 High Volume Air Sampling (HVAS) ................................................................................... 11

5. Quarterly Manganese monitoring ................................................................................................................. 13

6. Quarterly Noise monitoring ............................................................................................................................. 14

7. Complaints ............................................................................................................................................................. 16

8. INCIDENTS ............................................................................................................................................................. 16

9. Weather ................................................................................................................................................................... 17

Appendix 1 – Plan MY10547 ................................................................................................................................................... 18

Appendix 2 – Plan MY10956 ................................................................................................................................................... 19

Appendix 3 – Plan MY10950 ................................................................................................................................................... 20

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TABLES

Table 1 Acronyms ................................................................................................................................................... 4

Table 2 Colliery Information .................................................................................................................................... 5

Table 3 LDP B Monitoring Results .......................................................................................................................... 6

Table 4 Monthly Discharge Summary ..................................................................................................................... 8

Table 5 Depositional Dust Results .......................................................................................................................... 9

Table 6 Depositional Dust Rolling Average ........................................................................................................... 10

Table 7 HVAS PM 10 Monitoring Results ............................................................................................................. 11

Table 8 HVAS TSP Monitoring Results ................................................................................................................. 12

Table 9 Quarterly Managanese Monitoring Data .................................................................................................. 13

Table 10 Day and Evening Attended Monitoring Data .......................................................................................... 14

Table 11 Night Attended Monitoring Data ............................................................................................................. 15

Table 12 Myuna Weather Data ............................................................................................................................. 17

FIGURES

Figure 1 Surface Water pH Results ........................................................................................................................ 6

Figure 2 Surface Water TSS Results ...................................................................................................................... 7

Figure 3 Surface Water Oils and Grease Results ................................................................................................... 7

Figure 4 LDP B Discharge Water Volume ............................................................................................................... 8

Figure 5 Monthly Dust Deposition Gauge Results .................................................................................................. 9

Figure 6 Monthly Dust Deposition Rolling Annual Average ................................................................................... 10

Figure 7 Quarterly PM10 concentration ................................................................................................................ 11

Figure 8 Quarterly TSP Concentration .................................................................................................................. 12

Figure 9 Quarterly Manganese Monitoring ............................................................................................................ 13

Figure 10 Complaints by Type .............................................................................................................................. 16

Figure 11 Incidents by category ............................................................................................................................ 16

Figure 12 Weather Data ........................................................................................................................................ 17

4

Table 1 Acronyms

Term / Acronym Definition

<LOR Less than Limit of Reporting.

µg/L Micrograms per litre. Microgram is one millionth of a gram.

us/cm Micro siemens per centimetre

DG Dust Gauge

EC Electrical Conductivity

EPL Environmental Protection Licence

kL Kilolitres –1 thousand litres

LDPA Licenced discharge point A in EPL 366

LDPB Licenced discharge point B in EPL 366

mg/L Milligrams per litre. A milligram is one thousandth of a gram.

ML Megalitres –1 million litres

O&G Oil and Grease

pH A figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline

POELA Act Protection of the Environment Legislation Amendment Act 2011

TSS Total Suspended Solids

5

1. INTRODUCTION

This report summarises environmental monitoring results for Myuna Colliery for the period of

September 2015.

This report is prepared to satisfy the requirements under the Protection of the Environment

Legislation Amendment Act 2011 (POELA Act) to publish or make pollution monitoring data

available to members of the public.

This report also satisfies condition 8 schedule 5 of Project Approval 10_0080 to provide regular

reporting of the environmental performance of the project on its website.

The monitoring information included in this report is:

Surface Water Quality

Water Volume

Air Quality Monitoring

Complaints

Weather

Quarterly Manganese Monitoring

Noise

Table 2 Colliery Information

Colliery Information

Premises

Details

Myuna Colliery

Address 14 Summerhill Drive Wangi Wangi, NSW, 2267

Licensee Centennial Myuna

EPL no 366

EPL location http://www.epa.nsw.gov.au/prpoeoapp/ViewPOEOLicence

.aspx?DOCID=39136&SYSUID=1&LICID=366

http://www.epa.nsw.gov.au/prpoeoapp/ViewPOEOLicence.aspx?DOCID=39136&SYSUID=1&LICID=366

http://www.epa.nsw.gov.au/prpoeoapp/ViewPOEOLicence.aspx?DOCID=39136&SYSUID=1&LICID=366

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2. SURFACE WATER QUALITY

Myuna Colliery has two Licenced Discharge Points (LDP) for water. The following parameters;

pH, Total Suspended Solids (TSS mg/L) and Oil and Grease (mg/L) are monitored at Licenced

Discharge Point LDP00A and LDP00B daily during discharge in accordance with the

requirements of Environmental Protection Licence (EPL) 366.

Table 3 shows a summary of the monitoring results which have concentration limits specified in

the EPL, while figures 1 to 3 are a graphical representation. There were no discharges from LDP

A during the report period.

Table 3 LDP B Monitoring Results

Data Published: 14/10/2015 Licensee: Myuna

Data Sampled: 1/9/15 - 30/9/15 Address: 14 Summerhill Dr, Wangi Wangi.

Data Obtained: 7/10/2015 EPL No. 366

Pollutant Units of measure

Monitoring frequency by licence

No. of times measured during month Min. value

Max. value

100 percentile limit

Exceedance (yes/no)

Oil & Grease mg/L 30 32 LOR LOR 10 No

pH pH 30 32 7.50 7.80 6.5-8.5 No

Total Suspended Solids mg/L 30 32 1 14 50 No

Figure 1 Surface Water pH Results

7

Figure 2 Surface Water TSS Results

Figure 3 Surface Water Oils and Grease Results

There were no exceedances of Environment Protection Licence (EPL) 366 limits for Total

Suspended Solids (50mg/L), pH (6.5-8.5) and Oil and Grease (10 mg/L) during September 2015.

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3. WATER VOLUME

Water volume discharged off site is measured through licence discharge point B (LDP B).

EPL366 set a limit on the maximum volume of water to be discharged per day through LDP B.

The daily volume limit for LDP B is 13000 kL.

A summary of total water volume discharged is provided below.

Table 4 Monthly Discharge Summary


Data Sampled: 1/9/15 - 30/9/15 Address: 14 Summerhill Dr, Wangi Wangi.


Discharge Point Unit of Measure

Monitoring Frequency required by licence

No. of times measured during month

Min. value

Mean value

Median value

Max. Value

100 percentile limit

Exceedance (yes/no)

LDP00B Daily Volume kL Continuous Continuous 2900 5076 5055 8580 13000 No

Figure 4 LDP B Discharge Water Volume

There were no exceedances of the volume limit during the report period. A total of 152ML of

water was discharged from LDP B during the reporting period.

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4. AIR QUALITY MONITORING

The air quality monitoring results for the reporting period are summarised below.

4.1 Depositional Dust

Depositional dust (g/m2/mth) results (insoluble solids) for September 2015 are shown in Table 5.

Table 5 Depositional Dust Results


Data Sampled:

18/8/15 - 21/9/15

Address: 14 Summerhill Drive, Wangi Wangi Data Obtained: 7/10/2015 EPL No. 366

Oct-14 Nov-14 Dec-14 Jan-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Jul-15 Aug-15 Sep-15

DG1 1.1 1 1.1 1.7 0.6 0.9 0.5 0.4 0.9 1.6 1 0.6

DG2 0.5 3.2 1.9 1.8 0.8 1.7 1.2 1.8 0.9 1.2 1

DG3 3.4 3.2 3.4 1.6 3.6 0.5 0.8 2.9 1.6 1 0.8 2.2

DG4 1.4 1.8 0.9 1.4 0.9 2.4 0.9 1 0.8 0.4 0.2 1.1

DG – Dust Gauge

A graphical representation of depositional dust monitoring data is shown in Figure 5

Figure 5 Monthly Dust Deposition Gauge Results

Depositional dust monitoring data indicates that dust deposition results for September range

from 0.6 g/m2/month to 2.2 g/m2/month.

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The Myuna Colliery Project Approval 10_0080 contains criteria for a maximum total deposited

dust annual average of 4 g/m2/month. The rolling annual averages for each of the dust gauges in

September 2015 are shown in table 6 and Figure 6 below. All rolling annual averages are below

the 4 g/m2/month criteria.

EPL 366 does not contain a limit condition for depositional dust.

Table 6 Depositional Dust Rolling Average


Data Sampled:

18/8/15 - 21/9/15

Address: 14 Summerhill Drive, Wangi Wangi Data Obtained: 7/10/2015 EPL No. 366

Oct-14 Nov-14 Dec-14 Jan-15 Feb-15 Mar-15 Apr-15 May-15 Jun-15 Jul-15 Aug-15 Sep-15

DG1 0.8 0.8 0.8 0.9 0.9 1.0 1.0 0.9 0.9 1.0 1.0 1.0

DG2 2.6 2.8 3.0 3.2 3.3 3.2 3.4 3.4 3.5 3.5 1.5 1.5

DG3 2.7 2.8 3.0 3.1 3.3 3.2 3.1 3.1 3.0 3.1 2.7 2.1

DG4 1.7 1.7 1.7 1.7 1.7 1.6 1.5 1.4 1.4 1.3 1.2 1.1

Annual Average Limit (4g/m2/mth)

4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

Figure 6 Monthly Dust Deposition Rolling Annual Average

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4.2 High Volume Air Sampling (HVAS)

The Myuna Colliery Project Approval 10_0080 contains a criteria for PM10 (particulate matter

less than 10 micrometres) and TSP (Total Suspended Particulates). There were no exceedances

of the Project Approval limits. EPL366 does not contain limit conditions for PM 10 and TSP.

A summary of monitoring results for August and September 2015 is provided in Tables 7 & 8,

figures 7 & 8 below.

Table 7 HVAS PM 10 Monitoring Results


Data Sampled: 1/8/2015 - 30/9/2015 Address: 14 Summerhill Drive, Wangi Wangi Data Obtained: 7/10/2015

EPL No. 366

PM10 (µg/m3) 24 hr concentration

24 hr PM10 limit (50 ug/m3) Annual Average Annual average PM10 limit

3/08/2015 13 50 14.0 30

9/08/2015 4 50 13.9 30

15/08/2015 34 50 14.2 30

21/08/2015 31 50 11.0 30

27/08/2015 4 50 14.5 30

2/09/2015 12 50 14.6 30

8/09/2015 9 50 14.7 30

14/09/2015 14 50 14.8 30

20/09/2015 3 50 14.6 30

26/09/2015 4 50 14.4 30

Figure 7 Quarterly PM10 concentration

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Table 8 HVAS TSP Monitoring Results


Data Sampled: 1/8/2015 - 30/9/2015 Address: 14 Summerhill Drive, Wangi Wangi Data Obtained: 7/10/2015

EPL No. 366

TSP (ug/m3) 24 hr concentration

Annual Average TSP Limit (90ug/m3) Annual Average

03/08/15 32 90 30

09/08/15 10 90 29

15/08/15 40 90 30

21/08/15 73 90 24

27/08/15 12 90 30

02/09/15 25 90 30

08/09/15 16 90 30

14/09/15 23 90 31

20/09/15 9 90 30

26/09/15 11 90 30

Figure 8 Quarterly TSP Concentration

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5. QUARTERLY MANGANESE MONITORING

In accordance with Special Condition 9, E1 Additional Monitoring of EPL366, Myuna Colliery

undertakes a quarterly manganese monitoring program in Wangi Bay. The locations of this

monitoring can be found in Plan MY10950 attached.

The quarterly monitoring was undertaken on the 4th September 2015. The results are

provided in table 9 and figure 9 below.

Table 9 Quarterly Managanese Monitoring Data


Data Sampled: 4/09/2015 Address: 14 Summerhill Drive, Wangi Wangi


Location Unit of Measure Dec-14 Mar-15 Jun-15 Sep-15

T2-5M(1) mg/L 0.202 0.031 0.014 0.023

T2-5M(2) mg/L 0.026 0.024 <0.01 0.024

T2-10M(1) mg/L 0.039 0.086 <0.01 0.013

T2-10M(2) mg/L 0.047 0.088 <0.01 0.012

Figure 9 Quarterly Manganese Monitoring

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6. QUARTERLY NOISE MONITORING

Attended noise monitoring is undertaken quarterly in accordance with the Myuna Colliery

Project Approval. Noise monitoring is consistent with the OEH Industrial Noise Policy and

Australian Standard AS 1055 Acoustics, Description and Management of Environmental

Noise. The second quarter noise monitoring was conducted 29th – 30th June 2015.

The second quarter monitoring is summarised below.

Table 10 Day and Evening Attended Monitoring Data


Data Sampled: 29/6/2015 - 30/6/2015 Address:

14 Summerhill Dr, Wangi Wangi


Measured Noise Levels dB(A)

Day

Day LA1 LA10 LA90 LAeq LA eq (15

minute) Limit Description of Noise Emissions

R1 - 2 Turrama 65 57 35 53 35

Colliery noise inaudible over traffic noise at all locations except R7 - 63

Donnelly Road. Noise from road traffic dominates noise environment and controls ambient LAeq. Noise

from natural surrounds largely controls background LA90 levels.

Other noise sources include: - Insects - Birds

- Trees blowing in breeze

R2 - 2 Moani 65 57 38 56 35

R3 - 3 Sunset 59 54 41 51 35

R4 - 119 Donnelly 82 71 40 69 35

R5 - 93 Donnelly 78 68 37 66 37

R6 - 83 Donnelly 78 69 39 66 37

R7 - 63 Donnelly 64 58 40 53 37

R8 - 53 Donnelly 67 62 40 57 37

Evening

Evening LA1 LA10 LA90 LAeq LA eq (15

minute) Limit Description of Noise Emissions

R1 - 2 Turrama 60 52 40 49 35

Colliery is inaudible at all locations due to natural surrounds and traffic

controlling Leq noise levels. Background noise levels were generally controlled by insects. Other noise sources include:

Birds Trees blowing in the breeze

R2 - 2 Moani 63 49 36 49 35

R3 - 3 Sunset 55 50 40 47 35

R4 - 119 Donnelly 76 60 38 62 40

R5 - 93 Donnelly 78 65 37 68 42

R6 - 83 Donnelly 78 62 39 64 42

R7 - 63 Donnelly 61 52 41 50 42

R8 - 53 Donnelly 65 49 36 51 42

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Table 11 Night Attended Monitoring Data


Data Sampled: 29/6/2015 - 30/6/2015 Address: 14 Summerhill Dr, Wangi Wangi


Measured Noise Levels dB(A)

Night

Night LA1 LA10 LA90 LAeq LA 1 (1 min)

Limit LA eq (15

min) Limit Description of Noise Emissions

R1 - 2 Turrama 50 43 41 44 45 35

Colliery is audible at all locations, except R2 - 2

Moani Street and R5 - 93 Donnelly Road where

it is barely audible. Passing traffic is very rare, a handful of cars

passing over the monitoring period.

Other noise sources include: - Insects

R2 - 2 Moani 55 41 36 44 45 35

R3 - 3 Sunset 52 29 36 40 45 35

R4 - 119 Donnelly 38 32 30 31 49 38

R5 - 93 Donnelly 42 36 32 35 49 39

R6 - 83 Donnelly 64 42 39 54 49 39

R7 - 63 Donnelly 50 43 39 42 49 39

R8 - 53 Donnelly 50 39 36 43 49 39

LAeq noise levels higher than the project EPL noise limits were measured at each of the

designated receivers during the daytime, evening and night-time periods, however it was

noted that extraneous noise sources, namely road traffic and insects, contributed

significantly to these noise levels.

Colliery noise was inaudible at all locations during the day and evening. The Colliery was

audible at six locations and barely audible at two locations during the night-time. LAeq levels

were largely controlled by extraneous noise sources such as passing traffic, whereas LA90

levels were controlled by insects or Colliery operations during the evening and night. Colliery

operations were subjectively observed to contribute little to the measured LAeq noise levels

during any period of the day. Definitive compliance with EPL noise limits was, however,

difficult to determine through direct measurement due to the influence of extraneous noise

events.

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7. COMPLAINTS

A graphical summary showing that there were no complaints for the last 12 months is shown in

Figure 10.

Figure 10 Complaints by Type

8. INCIDENTS

There were no incidents recorded during the report period. A graphical summary of the

number of incidents for the last 12 months is shown in Figure 11.

Figure 11 Incidents by category

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9. WEATHER

A monthly summary of rainfall and temperature data recorded at the onsite meteorological

monitoring station for the year to date is shown in Table 12 below.

Table 12 Myuna Weather Data

Data Published: 14/10/2015

Data Sampled: 1/9/15 - 30/9/15 Licensee: Myuna


Month Total Rainfall ( mm) Minimum Temperature (oC)

Maximum Temperature (oC)

Oct-14 52.6 8.5 32.6

Nov-14 28.2 13.2 38.7

Dec-14 142.8 15 35

Jan-15 238.4 14.5 34.6

Feb-15 66.6 16.3 31.5

Mar-15 113.0 11.8 36.9

Apr-15 434.0 11.5 30.7

May-15 158.8 8.5 26

Jun-15 68.8 5.8 23.7

Jul-15 11.2 3.4 20.2

Aug-15 23.2 3.8 27.2

Sep-15 81.4 6.1 28

Figure 12 Weather Data

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APPENDIX 1 – PLAN MY10547

19


20


Centennial Coal Company Limited

P O Box 1000

Toronto NSW 2283

www.centennialcoal.com.au

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MYUNA COLLIERY

MY10950NTS

DH

08/11/2010 MyunaCentennial

LAKE MACQUARIEQUARTERLY WATER SAMPLE

LOCATIONS

july - july 2011 environmental monitoring...

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