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Hill End Gold Project

Pollution Monitoring

Under the NSW Protection of the Environment Operations (POEO) Act 1997, Peak Minerals Limited (PUA) is required to formulate a Pollution Incident Response Management Plan (PIRMP) and to make this plan publicly available on our website. A link to the plan in .pdf format is provided (see right hand column). You will need a .pdf reader to open and read the file, if you do not already have one please download a free copy of Adobe Reader by following this link Free Adobe Reader

The following is a link to PUA's Environment Protection Authority Licence No. 12008

The licence requires PUA to monitor and publish pollution monitoring data.
Maximum concentration limits for three Pollutants for both Monitoring Point 1 and Monitoring Point 2 have been set by the Environment Protection Authority, please see table below:

Maximum Concentration Limits

Pollutant Unit of Measure 100 percentile concentration Limit
Oil and Grease Milligrams per litre 10
pH pH 6.5-8.5
Total suspended solids Milligrams per litre 50

Point 1

Point 1 requires PUA to monitor daily any outflow from the Reward Mine. As the Reward Mine is in Care and Maintenance and not producing any outflow there is consequently no data available.

Point 2

Point 2 requires PUA to monitor quarterly during discharge the groundwater seepage emanating from the Amalgamated Portal to the Reward Mine. Monitoring is in the form of a Grab Sample which is forwarded to a laboratory for analysis. The results of past and recent testing at Point 2 are below:

Pollution Incident Response Management Plan (PIRMP)

Read the Peak Minerals Limited Pollution Incident Response Management Plan (PDF 850kb)

Pollution Incident Response Management Plan (PIRMP)

Read the Peak Minerals Limited Pollution Incident Response Management Plan (PDF 850kb)

Discharge & Monitoring Point 2 - Analysis Results

Discharge & Monitoring Point 2 - Analysis Results

2017
Amalgamated Outflow Analysis
2016
Amalgamated Outflow Analysis
2015
Amalgamated Outflow Analysis
2014
Amalgamated Outflow Analysis
2013
Amalgamated Outflow Analysis

PAL - Pollutant Testing Table 2019 - 2020

Pollutant

Unit of Measure

Monitoring frequency required by licence

Number of times measured

28/05/2019

02/07/2019

31/07/2019

08/10/2019

30/01/2020

100 percentile limits

Exceedance Yes/No

Alkalinity

Milligrams per litre

Quarterly during discharge

5

157

156

148

157

190

Arsenic

Milligrams per litre

Quarterly during discharge

5

0.001

0.002

0.001

0.002

0.002

Cadmium

Milligrams per litre

Quarterly during discharge

5

<0.0001

<0.0001

<0.0001

<0.0001

<0.0001

Calcium

Milligrams per litre

Quarterly during discharge

5

65

62

67

58

72

Chloride

Milligrams per litre

Quarterly during discharge

5

61

81

73

72

85

Chromium

Milligrams per litre

Quarterly during discharge

5

<0.001

<0.001

<0.001

<0.001

<0.001

Copper

Milligrams per litre

Quarterly during discharge

5

<0.001

<0.001

<0.001

0.004

0.003

Electrical Conductivity

Microsiemens per centimetre

Quarterly during discharge

5

807

762

796

784

839

Iron

Milligrams per litre

Quarterly during discharge

5

0.10

<0.05

<0.05

<0.05

<0.05

Lead

Milligrams per litre

Quarterly during discharge

5

<0.001

<0.001

<0.001

<0.001

<0.001

Magnesium

Milligrams per litre

Quarterly during discharge

5

37

33

35

36

38

Mercury

Milligrams per litre

Quarterly during discharge

5

<0.0001

<0.0001

<0.0001

<0.0001

<0.0001

Nickel

Milligrams per litre

Quarterly during discharge

5

<0.001

0.001

0.002

0.002

0.002

Oil & Grease

Milligrams per litre

Quarterly during discharge

5

<5

<5

<5

<5

<5

10

No

pH

pH

Quarterly during discharge

5

8.4

8.4

8.3

8.5

8.4

6.5 – 8.5

No

Potassium

Milligrams per litre

Quarterly during discharge

5

3

3

3

3

3

Sodium

Milligrams per litre

Quarterly during discharge

5

53

50

51

53

57

Sulfate

Milligrams per litre

Quarterly during discharge

5

145

105

126

138

134

Total Suspended Solids

Milligrams per litre

Quarterly during discharge

5

3

1

1

2

<1

50

No

Zinc

Milligrams per litre

Quarterly during discharge

5

<0.005

<0.001

<0.001

0.024

0.008

Complaints

Pure Alumina Limited operates a Telephone Complaints Line Monday to Friday between the hours 7.00am to 4.00pm.

If at any time you have any questions, queries or concerns about PUA activities or operations please do not hesitate to contact Jim Shanahan Site Manager at our Hill End Site Office on 0435 855 054.

Out of office hours the Site Manager can be contacted by email on jamesshanahan@hillendgold.com.au