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 CNMC Luanshya Copper Mines Pic


CLM


Environmental Project Brief


SILICA QUARRY PLANT AT MUVA HILL








7.0 ENVIRONMENTAL MANAGEMENT PLAN.





CNMC-Luanshya Copper Mines (CLM) Pic has adopted Cleaner Production


(CP) as an integral part of its corporate strategy for environmental


management. This strategy is clearly stated in the Environmental Policy


Statement. In practice, this is the first step in environmental management and


it cuts across all the mine processing units. The Mine acknowledges also that


sustainable development cannot be attained without putting in place an


effective environmental management system. To implement environmental


management commitments, CLM adopted a Cleaner Production procedure


briefly explained below.


Source reduction: -This strategy involves reducing waste from the source


by improving the production process and incorporating waste reduction in


the use of materials at all levels of production. The waste minimisation


approach goes beyond just producing copper (Cu) and cobalt (Co)


concentrates to all the supporting activities. For example, reducing the


volume of wastepaper by using electronic mails and sometimes processing of


waste rock by way of reclaiming for quarry or mineral processing.


Recycling: -This is the next option of the EMS for CLM and is applicable


together with the source reduction strategy' or when the source reduction


option is not practicable. Examples of processing units at CLM where


recycling is highly applied is the concentrator where the process water is


recycled. Used oil is also recycled by a subcontractor who buys used oil from


the mine.











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Environmental Project Brief Silica Quarry at Muva Hills.


CNMC Luanshya Copper Mines Pic - November, 2010.


 CNMC Luanshya Copper Mines Pic


CLM


Environmental Project Brief


SILICA QUARRY PLANT AT MUVA HILL








Treatment : - In cases where source reduction and recycling are not


practical, CLM applies "Treatment Method", which is the best possible means


of reducing the hazardous nature of waste.


Safe landfill disposal: - Although this is the last option, it is important


because it's applicable where the three options above are not feasible or as an


integral measure of the source reduction, recycling and treatment options.


All these interventions are in line with the Environmental Protection and


Pollution Control Act (EPPCA) of 1990, and the Mines and Minerals


(Environmental) Regulations of 1997. During the period of its existence, CLM


has developed and revised a number of Environmental Management


measures and commitments for the environmental impacts.


7.1 Liquid Effluent Management


Effluent water that will be generated from spillage washings will be


channelled into the drain which would lead to the settling pond for


suspended solid interception. Sampling of all effluent water for quality


monitoring purposes will be conducted weekly and the reference point will


be the standards set by Environmental Council of Zambia, as shown in Table


7.1 below.


























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Environmental Project Brief Silica Quarry at Muva Hills.


CNMC Luanshya Copper Mines Pic - November, 2010.


 CNMC Luanshya Copper Mines Pic


CLM


Environmental Project Brief





SILICA QUARRY PLANT AT MUVA HILL





Table 7.1 STANDARDS FOR EFFLUENT & WASTE WATER INTO AQUATIC


ENVIRONMENTS





PARAMETER ECZ STANDARD


A. Physical


1 Temperature (Thermometer 40 OC at point of entry


2 Colour (Hazen Units) 20 Hazen units


3 Odour and Taste (Threshold odour number) Must not cause any deterioration in taste or odour


as compared with natural state


4 Turbidity (NTU scale) 15 Nephelometer turbidity units


5 Total Suspended Solids (Gravimetric 100 mg/L must not cause formation of sludge or


method) scum in receiving water


6 Settleable matter sedimentation in 2 hours 0.5 mg/L in two hours. Must not cause formation


(Imhoff funnel) of sludge in receiving water


7 Total Dissolved Solids (Evaporation at 105 3000 mg/L The TDS of waste water must not


OC and Gravimetric method) adversely affect surface water


8 Conductivity (Electrometric method) 4300ljS/ctti


B Bacteriological


9 Total Coliform/100 ml (Membrane Filtration 25000


method)


10 Faecal Coliform/100ml (Membrane Filtration 50000


method)


11 Algae /100 ml (Colony counter) 1000 cells


|C Chemical


12 pH (0-14 scale) (Electro-metric method) 6.0-9.0








Process water is expected to be released to the natural ecosystem. Depending


on the analysis results of TSS, TDS, and Hydrocarbon contamination among





other parameters, once it is effectively settled, effluent water will be re-used


for suppressing dust. However, excess water shall be released into the natural





environment. Environmental Services Section shall ensure weekly sampling


of the effluent is done before discharge is done to the natural environment.





Remedial measures shall be employed immediately to correct results that lie


out of acceptable standards.











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Environmental Project Brief Silica Quarry at Muva Hills.





CNMC Luanshya Copper Mines Pic - November, 2010.


 CNMC Luanshya Copper Mines Pic


CLM


Environmental Project Brief


SILICA QUARRY PLANT AT MUVA HILL





7.2 Generation of Dust/ Fumes


A deliberate routine programme for suppressing dust will be embarked on.


This will involve watering of tracks and all areas surrounding the Silica plant.


The proposed site comprises an extended outcrop of quartzite rock.


Therefore, no meaningful land clearance will be done which could expose the


area to fugitive dust in case of wind. At most dust is only expected to be


generated from vehicular movements and natural phenomenon such as


whirlwind, even though the surrounding mature stands of the Miombo


woodlands will block most of harmful winds directed to the Silica Plant.


Routine dust monitoring will be conducted in line with the Mining


Regulation 939(1) & (2). This will help us mitigate and control emission levels


to well below the maximum allowable concentration of 350 particles per


cubic centimetre. Under the guidance of Ventilation Officers, the Site


Foreman shall ensure Routine Dust Monitoring Reports are prepared


monthly.


7.3 Soil Compaction


Soil compaction is expected to be confined to the area around the Quarry


Facility and heavy duty' tracks leading to and from the Project area. As stated


in the decommissioning strategy' plan, compaction of soils will be inevitable


during the construction and operations phase.


During the decommissioning phase, compacted soils will be ripped using


Tractor disks. This will result in loose soils which can easily support


vegetation growth and other natural ecosystem interactions. Eventually the


site would be colonised by indigenous plant species and thus provide natural


habitats for fauna and flora.











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Environmental Project Brief Silica Quarry at Muva Hills.


CNMC Luanshya Copper Mines Pic - November, 2010.


 CNMC Luanshya Copper Mines Pic





CLM Environmental Project Brief


SILICA QUARRY PLANT AT MUVA HILL





7.4 Noise level


The noise which is likely to be produced from blasting, crushing and other


mobile equipments is expected to be within reasonable health limits.


International guidelines recommend a maximum noise exposure of 85


decibels (dB) in a shift of 8 hour-day. Therefore, where noise levels would be


likely to exceed 85 dB, adequate precaution measures shall be put in place.


However, all employees who would be working around the site would be


provided with appropriate personal protective clothing (PPE) i.e. ear muffs/


ear plugs, to protect them from adverse noise effects. Signages shall be


posted around to remind employees to adhere to prescribed health and safety


regulations. The site Foreman will be responsible for all noise/dust abatement


systems, and is mandated to compile monitoring reports. The Site Foreman


works in collaboration with CLM Ventilation Officers and Environmental


Service Coordinators.


7.5 Management of Waste


In the case of machinery breakdown and subsequent oil spillages, the


contamination (spill) shall be cleaned up immediately. Loaders and transport


Trucks will be scheduled for routine maintenance and complete overhaul


involving change of, oils only at the Mine Garage facility or at the nearby


Baluba Diesel Workshop. Both facilities are registered under the ECZ license


to generate and store hazardous waste i.e. used oil and oil contaminated


filters. Soil contamination which may result from oil spillages will be


contained by way of appropriate spillage control kit and in accordance with


Material Control Data sheet recommendations. Depending on the level of


contamination, contaminated soils may be required to be dug up and isolated


so as to bio-remediate them.








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Environmental Project Brief Silica Quarry at Muva Hills.


CNMC Luanshya Copper Mines Pic - November, 2010.


 CNMC Luanshya Copper Mines Pic


CLM


Environmental Project Brief


SILICA QUARRY PLANT AT MUVA HILL








Waste bins shall be designated strategically around the Plant area and shall be


rebelled in terms of Domestic waste, Industrial Waste, and hazardous waste.


The Site Foreman shall work hand in hand with CLM Environmental Services


personnel in all aspects related to waste management.


7.6 Fire Hazard


Fires have been anticipated, with the main sources being electrical short


circuits and combustible fuels in loaders and transport vehicles working in


the proximity area. Fire Services personnel will station appropriate types of


fire extinguishers at the proposed Silica Quarry for combating fires. CLM Fire


Tender equipped with a radio communication device will always be on alert


in case of fire out-brake. Emergency toll free lines will be posted around the


site for quick fire service response in case of an inferno. All employees are


mandated to protect this facility against fire through collaboration working


terms with CLM Fire Sendees Section.


7.7 Public Health and safety


CLM will endeavour to prevent the spread of malaria as much as possible. An


in-house anti-malaria spraying exercise for areas within the mine and


surrounding areas is currently conducted and will be intensified even for


areas around the project sites.


7.8 Workers' health and Safety


Strict adherence to safety measures and procedures will minimise and to a


great extent eliminate risks of accidents or hazardous developments occurring


and ensure healthy and safe conditions for all persons working around the


proposed area. CLM has developed safety procedures on how to operate in


different high risk environments.


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Environmental Project Brief Silica Quarry at Muva Hills.


CNMC Luanshya Copper Mines Pic - November, 2010.


 CNMC Luanshya Copper Mines Pic


CLM i *


Environmental Project Brief


SILICA QUARRY PLANT AT MUVA HILL








Prior to blasting activities, a Vehicle mounted with a radio and alarm system


will go round the surrounding community to warn residents in the nearby


farm settlement to stay away from the project area within a radius to be


advised.


First-aid induction shall be conducted on all employees prior to engagement.


A standby vehicle for emergence evacuation to the nearby Baluba Mine Clinic


will be stationed at the Silica Quarry Plant. The Clinic at Baluba Mine is


equipped with modern Ambulance facility for further evacuation to Luanshya


Mine Hospital.







































































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Environmental Project Brief Silica Quarry at Muva Hills.





CNMC Luanshya Copper Mines Pic - November, 2010.


 CNMC Luanshya Copper Mines Pic





CLM Environmental Project Brief


SILICA QUARRY PLANT AT MUVA HILL





8.0 DECOMMISSIONING AND CLOSURE


Decommissioning and closure of the Silica quarrying Plant at Muva Hill is


expected to be implemented 3 years after commencement of actual quarrying


and processing. The activities that are expected to characterise the closure and


decommissioning of the Quarry Plant includes;


■ Isolation of all electrical connections except for security lighting,


■ Removal of Crusher unit for storage at Baluba Mine,


■ Profiling of dug out areas and general landscaping,


■ Demolition of all concrete wall- debris to be filled into dug out areas,


■ Isolation of any contaminated soils on site for bioremediation,


■ Blocking of other access routes except for the Mine Police patrol route,


■ Ripping all soil compacted surfaces on site. Compacted soils will be


loosened by ripping or through disking the area, so as to encourage


natural colonisation.


Ten percent (i.e. US$ 21,000.00) of the total project cost is projected to be spent


on decommissioning activities, mainly rehabilitating the Muva Hill site.












































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Environmental Project Brief Silica Quarry at Muva Hills.


CNMC Luanshya Copper Mines Pic - November, 2010.


 *0 CNMC Luanshya Copper Mines Pic





CLM Environmental Project Brief


SILICA QUARRY PLANT AT MUVA HILL





9.0 CONCLUSION





CNMC Luanshya Copper Mines (CLM) Pic feels duty bound to report and


seek technical advice from state authorized agencies such as ECZ and the


Mines Safety Department (MSD) even on matters that relate to modification


of historical operations of the Luanshya Copper Mine, which it took over in


June, 2009. The proposed Silica Quarry Plant is planned to be located at the


foot of the rawmaterial Quartzite outcrop at Muva Hill. The area being


applied for is under Muva Hill mining license LML 58 which has since been


updated to License No. 8394-HQ-LML


This Environmental Project Brief will be referred to during design and actual


operational stages of the Silica plant. All mitigation measures would be


implemented as outlined, but in certain cases environmentally friendly


modification shall be sought. The project is expected to be in active operation


for about 3 years. The construction and all installation works for the Silica


Plant are expected to cost CLM a sum of USD 210,000.00, whereas


decommissioning and closure costs are expected to average USD 21,000.00.


Employment creation to the local residents and creation of an extended tax


base are some of the socio-economical attributes of this project. Noise and


fugitive dust generation constitute the greater health and environmental


concerns. CLM Pic would like to emphasize that the benefits accrual on this


Silica Quarry Plant establishment on the operations of the Muliashi Mining


Project and its surrounding environment will greatly outweigh the negative


impacts that would be created.











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Environmental Project Brief Silica Quarry at Muva Hills.


CNMC Luanshya Copper Mines Pic - November, 2010.


 CNMC Luanshya Copper Mines Pic





CLM Environmental Project Brief


SILICA QUARRY PLANT AT MUVA HILL





REFERENCE


Environmental Protection & Pollution Control Act (EPPCA) 1997.


ECZ (2000) State of the Environment in Zambia.


LCM (2004), Environmental Impact Statement: Luanshya Mine Shafts


Decommissioning & Closure.


Scott Wilson Piesold (2006), Statutory' Dump Inspection Report: Waste Rock


Dump No. 9.


Yager et. al (1968) Types of Soils -Classification and Types of soils


www.cnmc.com.cn (22/06/2010) 11am.


CNMC Group of Companies.



























































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Environmental Project Brief Silica Quarry at Muva Hills.


CNMC Luanshya Copper Mines Pic - November, 2010.