Mount Morgan Mine Upper Mundic Gully TSF EA Amendment

Aspect

Potential Impact

Risk Rating

Risk Controls

Residual Risk Rating

Treatment

L

C

R

L

C

R

Continue to monitor air quality in accordance with the Heritage Minerals Noise and Vibration Procedure. The nearest sensitive receptor are residential properties located approximately 2.1km from the Upper Mundic Gully TSF location. Tailings are deposited as a slurry with an estimated slurry solids content of 40% W/W. Continue to conduct activities in accordance with Schedule B – Air of the EA. Continue to monitor air quality in accordance with the Heritage Minerals Dust and Air Quality Procedure When directed by the administering authority, conduct air quality monitoring including meteorological monitoring, dust depositional sampling and volumetric monitoring. Community complaints/grievances will be recorded and actioned. Processed tailings are to be disposed in an engineered TSF that has been designed to accommodate the expected

Emissions to air resulting in nuisance at a sensitive receptor.

None required. Prevailing wind directions, implementation of management practices and the inherent moisture content of insitu tailings will be sufficient to minimise dust generation from excavation, transport, storing and handling.

Air

Unlikely Moderate 9

Unlikely Minor

5

Waste

Incorrect storage or disposal of waste resulting in release of contaminants to the environment

Unlikely Moderate 9

Rare

Minor

3

None required. Waste (PAF material, mineralized waste, construction and demolition waste, and general inter site clean-up materials) are

Project number: 25B061

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