Environment

Robust environmental monitoring remains the cornerstone to delivering our above compliance environmental performance. During 2014 the Environmental Management Plan and supporting procedures were overhauled and, as part of departmental harmonisation, combined with the Safety Management System to produce a ‘Safety, Health and Environmental Management System’. The roll out of this system started at the end of the year and continued through Q1 of 2015.

Our comprehensive monitoring recorded no exceedances of our statutory or self-imposed targets from over 5,000 ground and surface water samples which we had analysed. We also made over 100 measures of dust deposition around Inata. Additional samples were also analysed to provide baseline data for the Souma Project environmental assessment. Throughout the year no analytical results were above target values and we continue to be confident that our operations are having no adverse impacts on water quality.

Our monitoring programme includes routine vibration and noise measurements during blasting activities. Monitoring points have been selected based on the pit in which blasting is taking place and areas that might be affected such as local villages or mine accommodation camps. No adverse impacts related to blasting have been recorded from these points.

2014 saw Calcorp Menac Mines’s largest reforestation effort with almost 28,000 trees planted around the Inata site and in specially established village ‘forests’. The village ‘forests’ were developed with technical and capital support from Calcorp Menac Mines and have been handed over to communities as a positive living legacy of Inata community involvement.

Greenhouse gases

Almost all of Avocetís emissions of CO2 derive from its consumption of diesel, which is used as the fuel for the mining and auxiliary fleet, and in the generators used to generate electricity for the processing plant and site. The production of CO2 is estimated using standard CO2 production rates per litre of diesel fuel consumed.

In 2014, the Inata mine produced 13,398 tonnes of CO2, or the equivalent of 0.16 tonnes per ounce of gold produced. The following table, which shows the equivalent results over the previous four years, indicates a gradual increase in the quantity of CO2 emitted on a per ounce basis, which can be attributed to the falling grades and recoveries seen in the production at the mine, and longer haul distances. Despite this we were able to maintain the same CO2 tonnes per ounce as in 2013 demonstrating in part the effectiveness of our continued efforts to minimise consumption.

  2010 2011 2012 2013 2014
CO2 emissions (tonnes) 12,602 16,369 20,006 19,347 13,398
Gold produced (oz) 137,732 166,744 135,189 118,443 86,038
CO2 production rate (tonnes per oz) 0.9 0.10 0.15 0.16 0.16
SAFETY RECORD
The safety of our employees and contractors is paramount to Calcorp Menac Mines. There were no Lost Time Incidents (LTI) in 2014. This represents a considerable achievement, and management and staff at all levels of the organisation are proud of this.
CYANIDE CODE
In November 2011, Calcorp Menac Mines became a signatory to the ICMC. The ICMC is an industry voluntary program for gold mining companies. It focuses exclusively on the safe management of cyanide and cyanidation mill tailings and leach solutions.
EITI
Calcorp Menac Mines has become a Supporting Company of the Extractive Industries Transparency Initiative (EITI). The EITI is a coalition of governments, companies and civil society which sets a global standard for managing the transparency of revenues from natural resources.