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RISK ASSESSMENT REPORT Page 1
RISK ASSESSMENT REPORT:
DECOMMISSIONING OF PARTS OF THE CULLINAN
DIAMOND MINE BENEFICIATION PLANT
NAME OF APPLICANT: CULLINAN DIAMOND MINE (PTY) LTD
TEL NO: (014) 544 6100
POSTAL ADDRESS: Private Bag X1015, Cullinan
PHYSICAL ADDRESS: Olienhout Road, Cullinan, 1000
RISK ASSESSMENT REPORT Page 2
RISK ASSESSMENT REPORT: DECOMMISSIONING
OF PARTS OF THE CULLINAN DIAMOND MINE
BENEFICIATION PLANT
NAME OF APPLICANT: CULLINAN DIAMOND MINE (PTY) LTD
TEL NO: (012) 305 2487
POSTAL ADDRESS: Private Bag X1015, Cullinan
PHYSICAL ADDRESS: Olienhout Road, Cullinan, 1000
FILE REFERENCE NUMBER: TO BE PROVIDED
RISK ASSESSMENT REPORT Page 3
TABLE OF CONTENTS
1. Background Description .............................................................................................. 4
2. Description of the activities to be undertaken ........................................................... 5
3. Methodology used in determining and ranking potential environmental impacts
and risks ....................................................................................................................... 5
4. DMR impact assessment and mitigation measures table template requirements . 15
4.1 Shangoni risk assessment table template in relation to the requirements as per the
DMR report template ............................................................................................... 16
5. Risk assessment and mitigation / management measures ..................................... 17
6. Summary of the positive and negative implications and risks of the proposed
activity and identified alternatives ............................................................................ 25
7. Cumulative impacts ................................................................................................... 29
8. Proposed impact management objectives and the impact management outcomes
for inclusion into the EMPr ........................................................................................ 31
RISK ASSESSMENT REPORT Page 4
1. Background Description
Cullinan Diamond Mine Pty (Ltd) (“CDM”) is a company that mines Diamonds at the Cullinan Diamond
Mine. The site is situated approximately 1.8 km south west of Cullinan, the closest major town to the
mine. Parts of the current Beneficiation Plant will be decommissioned/dismantled and replaced with
new infrastructure.
All material stripped out from the Beneficiation Plant will be sold to local Black Economic Empowerment
Service Level Agreement (“BEE SLA”) companies. Where indicated in specific areas the concrete will
be demolished and be placed at the CDM Landfill site. Any hazardous material will be removed and
stored at the salvage yard and disposed of by an appointed waste disposal certificated contractor to a
permitted landfill site. Contaminated soil will be stored in skips demarcated for this purpose and
disposed of by an appointed waste disposal certificated contractor to a permitted landfill site.
Shangoni Management Services (Pty) Ltd has been appointed as the independent environmental
practitioner, to conduct the required Basic Assessment (“BA”) for the Environmental Authorisation for
the following activities occurring as part of the decommissioning of part of the CDM’s Beneficiation
Plant:
• Activity 1: Dismantling and removal of conveyor belts.
• Activity 2: Dismantling and removal of cabling.
• Activity 3: Deconstruction of building material and concrete, and the removal of building
rubble/concrete to the CDM Landfill.
• Activity 4: Decommissioning of Water reticulation system and water pipelines.
• Activity 5: Decommissioning of the Washing Plant.
• Activity 6: Decommissioning of the Washing Plant Workshop and old Murray & Roberts area.
• Activity 7: Decommissioning of the Old Polysius Plant (High-Pressure Grinding Rolls).
• Activity 8: Decommissioning of the Large Diamond Recovery Plant and Waste Sorting Plant.
• Activity 9: Decommissioning of the Primary Crusher Plant.
• Activity 10 Decommissioning of the Prep Plant.
• Activity 11: Decommissioning of Plant Main Thickeners and Dewatering pump station.
• Activity 12: Decommissioning of the Coarse Dense Media Separation Plant.
• Activity 13: Decommissioning of the Re-crush Plant.
• Activity 14: Decommissioning of the Retreat Plant.
• Activity 15: Decommissioning of the Old Degrit Plant.
• Activity 16: Decommissioning of the Optical Sorting Plant.
• Activity 17: Decommissioning of the Caustic Plant.
• Activity 18: Decommissioning of the Old Sort house.
• Activity 19: Decommissioning of the Old Recovery Plant.
• Activity 20: Decommissioning of the Fines Dense Media Separation Plant.
• Activity 21: Decommissioning of the KHD Crusher plant section with the Dump Treatment Plant
Recovery.
RISK ASSESSMENT REPORT Page 5
• Activity 22: Decommissioning of the Slimes Disposal Unit Plant.
• Activity 23: Decommissioning of transformers and electrical switching equipment.
• Activity 24: Removal of contaminated soils to a permitted landfill site (where required).
• Activity 25: Transportation of workers, materials and waste to and from site.
• Activity 26: Establishment and operation of a contractor support area.
The table below provides a summary of the listed activities for which authorisation is applied for as per
GNR 983 of 4 December 2014, as amended.
LISTED ACTIVITY LISTED ACTIVITY DESCRIPTION
GNR 983 Listing
Notice 1 Activity 31(i)
and (v).
31. The decommissioning of existing facilities, structures or infrastructure for-
(i) any development and related operation activity or activities listed in this Notice,
Listing Notice 2 of 2014 or Listing Notice 3 of 2014;
(v) any activity regardless the time the activity was commenced with, where such
activity:
(a) is similarly listed to an activity in (i) and (ii) above; and
(b) is still in operation or development is still in progress;
excluding where-
(aa) activity 22 of this notice applies; or
(bb) the decommissioning is covered by part 8 of the National Environmental
Management:
Waste Act, 2008 (Act No. 59 of 2008) in which case the National Environmental
Management: Waste Act, 2008 applies.
2. Description of the activities to be undertaken
The following activities are to be undertaken as part of the decommissioning of parts of the Beneficiation
Plant:
Activity 1 Dismantling and removal of conveyor belts:
This activity includes the dismantling and removal of conveyor belts in the following plants:
• The Washing Plant;
• Old Polysius Plant;
• Large Diamond Recovery Plant;
• Primary Crusher Plant;
• Between the stockpile and wash plant;
• Prep Plant;
• Coarse Dense Media Separation;
• Recrush Plant;
• Retreat Plant; and
• Fines Dense Media Separation Plant:
RISK ASSESSMENT REPORT Page 6
All material stripped from the equipment will be sold to local BEE SLA companies. Reusable equipment
will be placed in a laydown area and will be sold as reusable equipment or auctioned off.
Activity 2 Dismantling and removal of cabling:
Powerlines and electrical cables in all the facilities to be decommissioned will be dismantled, removed
and sold. The three old 88kV feed power lines and MV switching yard with transformers will be
decommissioned by Eskom.
Activity 3 Deconstruction of building material and concrete, and the removal of building
rubble/concrete to the CDM Landfill:
This activity includes the crushing and removal of building rubble, concrete structures and concrete
floors during the dismantling of the following facilities:
• The Washing Plant;
• Old Polysius Plant;
• Large Diamond Recovery Plant;
• Primary Crusher Plant;
• Prep Plant;
• Plant Main Thickeners and Dewatering Pump Station;
• Coarse Dense Media Separation;
• Recrush Plant;
• Retreat Plant;
• Old Degrit Plant;
• Optical Sorting Plant;
• Sorthouse;
• Recovery Plant;
• Fines Dense Media Separation Plant; and
• Slimes Disposal Unit Plant
The building rubble and concrete to be removed is approximately 2 200 m3 and will be disposed at the
CDM Landfill Site which is licenced to receive general waste.
Activity 4 Decommissioning of Water reticulation system and water pipelines:
Water pipes will be disconnected. Pipes at the Primary Crusher Plant, Dewatering Pump Station,
Coarse Dense Media and Old Degrit Plant will be stripped and sold.
Activity 5 Decommissioning of the Washing Plant:
This includes the removal of equipment in the Washing Plant; two steel floors with beams and braces
and recycling conveyors. Equipment stripped from the plant will be sold.
Activity 6 Decommissioning of the Washing Plant Workshop and old Murray & Roberts
area:
RISK ASSESSMENT REPORT Page 7
This area will be cleared for emergency purposes, as it falls within the 100m boundary from the pit
walls.
Activity 7 Decommissioning of the Old Polysius Plant (High-Pressure Grinding Rolls):
This activity includes stripping of the components of the Polysius Plant and includes the removal of two
crushers and all equipment and internal equipment structures to create space in the building. The shell
will be retained, and the plant will be used as a store.
Activity 8 Decommissioning of the Large Diamond Recovery Plant and Waste Sorting
Plant:
This activity includes the stripping and demolition of the plant, its substation, feed conveyor 1636 and
its discharge conveyor 1636. Approximately 12 m3 of concrete will be removed and disposed at the
CDM Landfill, which is licenced to receive general waste.
Activity 9 Decommissioning of the Primary Crusher Plant:
The six vibrating feeders, four screens, pumps and sump pumps will be stripped out and sold as
complete units or equipment. The conveyor belts, chutes, old dust scrubbers, air pipes, water pipes and
internal structures will be stripped by local BEE SLA contractors and all the stripping’s will be sold to
them. The building with the cranes will be used for a loading point and storage facility.
Approximately 360 m3 of concrete and building rubble will be disposed at the CDM Landfill, which is
licenced to receive general waste.
Activity 10 Decommissioning of the Prep Plant:
This activity includes the demolition of the total Prep Plant with feed conveyor 1615, tripper car and
conveyor 1616, discharge conveyors 01 and 02. The underground mud pipe and the pipe gantry will be
retained through this area. Total concrete and building rubble is estimated at 36 m3 and will be moved
to the CDM Landfill site, which is licenced to receive general waste. l.
Activity 11 Decommissioning of Plant Main Thickeners and Dewatering pump station:
This activity includes removing several pumps and sump pumps with valves. All steel and pipes will be
removed by BEE SLA contractors and sold to them as part of the scrap project. The thickener cavities
are to be filled and the surface concrete is to be demolished and the ground level to be restored.
Activity 12 Decommissioning of the Coarse Dense Media Separation Plant:
This activity includes stripping of four conveyors (1617A-D) that feed the Coarse Dense Media
Separation Plant (CDMS) Plant. These conveyors will be stripped by the BEE SLA contractors. The
CDMS houses two pumped Dense Media Separation (DMS) processes of high value that are resalable
and need to be sold as soon as possible to ensure the highest value is recovered; the value will
depreciate over time due to standing equipment and pitting of bearings, as also rubber lining will perish.
The six cyclones, six screens, two large Warman pumps and several Warman sump pumps will be
RISK ASSESSMENT REPORT Page 8
stripped out and sold as complete units or equipment. The conveyor belts, chutes, Cyclone feed &
discharge boxes, rubber lined tanks, air pipes, water pipes and internal structures will be stripped by
local BEE SLA contractors and all the stripped items will be sold to the BEE Contractors. The building
with the cranes will be stripped to the ground and the sumps filled with soil. Some concrete plinths will
be broken down. The concrete and building rubble is approximately 45 m3 and will be moved to the
CDM Landfill, which is licenced to receive general waste.
Activity 13 Decommissioning of the Re-crush Plant:
This activity includes stripping the Re-crush Plant including the feed conveyors 19 and 19A tripper, six
internal belt feeders, three discharge conveyors 20, 21 & 22 as well as the old infield screening
conveyors 18A & 18B that will be removed by the BEE SLA contractors. The eight vibrating screens,
two vibrating screens, sump pumps and the cranes will be stripped and sold as complete units or
equipment. The conveyor belts, chutes, old dust scrubbers, air pipes, water pipes and internal structures
will be stripped by local BEE SLA contractors and all the strippings will be sold to them. The concrete
and building rubble is approximately 250 m3 and will be moved to the CDM Landfill, which is licenced to
receive general waste.
Activity 14 Decommissioning of the Retreat Plant:
In this activity, the five fines DMS modules will be stripped, the equipment screens, pumps, magnetic
separators, densifiers, cyclones will be removed and sold as equipment. All other structures, conveyors,
bins, tanks will be stripped, removed and sold as equipment. The cranes will be removed and sold lastly
before the building structure will be stripped and sold. The concrete structures will be broken down and
all concrete and building rubble off approximately 460 m3 will be taken to the landfill site, which is
licenced to receive general waste. The thickener cavities are to be filled and the surface concrete is to
be demolished and the ground level to be restored.
Activity 15 Decommissioning of the Old Degrit Plant:
The plant is to be deconstructed partly and the pipe supports to be retained. Most of the structure will
be sold as scrap to BEE SLA Contractors. Some concrete structures will be broken down and all
concrete and building rubble off approximately 10 m3 will be taken to the CDM landfill site, which is
licenced to receive general waste.
Activity 16 Decommissioning of the Optical Sorting Plant:
This activity includes deconstructing the optical sorter plant. The equipment will be sold, and scrap will
be sold to BEE SLA contractors. The concrete structures will be broken down and all concrete and
building rubble off approximately 25 m3 will be taken to the CDM landfill site, which is licenced to receive
general waste.
Activity 17 Decommissioning of the Caustic Plant:
This includes the decommissioning of the processes undertaken in the Caustic Plant and the plant used
as a Control and Instrumentation Workshop. The structure will not be decommissioned.
RISK ASSESSMENT REPORT Page 9
Activity 18 Decommissioning of the Old Sort house:
This activity includes the removal of all reusable equipment that will be redistributed within the Petra
Group if not reused it will be sold off. The Sorthouse will be demolished. All the building structures will
be broken down and all concrete and building rubble off approximately 120 m3 will be taken to the CDM
landfill site, which is licenced to receive general waste.
Activity 19 Decommissioning of the Old Recovery Plant:
Most of the equipment will be removed from the recovery and be sold off. The structures inside the
recovery will be stripped down and sold. The building will be demolished to the point where the
basements will be filled up to natural ground level. The concrete structures will be broken down and all
concrete and building rubble off approximately 480 m3 will be taken to the CDM landfill site, which is
licenced to receive general waste.
Activity 20 Decommissioning of the Fines Dense Media Separation Plant:
The two fines DMS modules will be stripped, the equipment screens, pumps, magnetic separators,
densifiers, cyclones will be removed and sold. All other structures, conveyors, bins, tanks will be
stripped, removed and sold to contractors. The cranes will be removed and sold lastly before the
building structure will be stripped down and sold. The concrete structures will be broken down and all
concrete and building rubble off approximately 320 m3 will be taken to the CDM landfill site, which is
licenced to receive general waste.
The sumps might be utilized to assist with the containment of process water overflow from the new
recovery and to pump back to the XRL process water tank. Minor concrete structures will be broken
down and all concrete and building rubble off approximately 35 m3 will be taken to the CDM landfill site,
which is licenced to receive general waste.
Activity 21 Decommissioning of the KHD Crusher plant section with the Dump Treatment
Plant Recovery:
This activity includes the removal of equipment from the old Dump Treatment Plant (“DTP”) recovery.
This equipment will be redistributed within the Petra Group or will be sold.
Activity 22 Decommissioning of the Slimes Disposal Unit Plant:
This plant with all the pipe gantries will be broken down. The pumps and sump pumps will be removed
as complete units and will be sold. The structures, tanks, piping and the piping gantries will be stripped
by BEE SLA Contractors and will be sold to them. The sumps will be demolished and filled to natural
ground level at a later stage. Minor building structures will be broken down and all concrete and building
rubble off approximately 10 m3 will be taken to the CDM landfill site, which is licenced to receive general
waste.
RISK ASSESSMENT REPORT Page 10
Activity 23 Decommissioning of transformers and electrical switching equipment:
This activity includes dismantling transformers and electrical switching equipment. Re-
usable/recyclable material will be removed and sold.
Activity 24 Removal of contaminated soils to a permitted landfill site (where required):
This activity includes the removal of contaminated soil present at the area to be decommissioned to a
permitted landfill site.
Activity 25 Transportation of workers, materials and waste to and from site:
Transport activities for the project will include contractors travelling to and from site, equipment /material
transported off site for selling, recycling, re-use, transport of waste to permitted landfill sites.
Activity 26 Establishment and operation of a contractor support area:
For day-to-day management of the operations, including portable chemical toilets, use of generators (if
required for power supply) and temporary material and waste storage areas. Temporary support
infrastructure will be set-up on site for the duration of the project. The area will be fenced with security
and access control.
3. Methodology used in determining and ranking
potential environmental impacts and risks
The environmental risk of any aspect is determined by a combination of parameters associated with the
impact. Each parameter connects the physical characteristics of an impact to a quantifiable value to
rate the environmental risk.
Impact assessments should be conducted based on a methodology that includes the following:
• Clear processes for impact identification, predication and evaluation;
• Specification of the impact identification techniques;
• Criteria to evaluate the significance of impacts;
• Design of mitigation measures to lessen impacts;
• Definition of the different types of impacts (indirect, direct or cumulative); and
• Specification of uncertainties.
After all impacts have been identified, the nature and scale of each impact can be predicted. The impact
prediction will take into account physical, biological, socio-economic and cultural information and will
then estimate the likely parameters and characteristics of the impacts. The impact prediction will aim to
provide a basis from which the significance of each impact can be determined and appropriate
mitigation measures can be developed.
RISK ASSESSMENT REPORT Page 11
The risk assessment methodology is based on defining and understanding the three basic components
of the risk, i.e. the source of the risk, the pathway and the target that experiences the risk (receptor).
Refer to Figure 1 below for a model representing the above principle (as contained in the DWA’s Best
Practice Guideline: G4 – Impact Prediction).
Figure 1: Impact prediction model
Table 1 and Table 2 below indicate the methodology to be used in order to assess the Probability and
Magnitude of the impact, respectively, and Table 3 provides the Risk Matrix that will be used to plot the
Probability against the Magnitude in order to determine the Severity of the impact.
RISK ASSESSMENT REPORT Page 12
Table 1: Determination of Probability of impact
SCORE FREQUENCY OF ASPECT /
UNWANTED EVENT
AVAILABILITY OF
PATHWAY FROM THE
SOURCE TO THE
RECEPTOR
AVAILABILITY OF
RECEPTOR
1 Never known to have
happened, but may happen
A pathway to allow for the
impact to occur is never
available
The receptor is never available
2 Known to happen in industry
A pathway to allow for the
impact to occur is almost
never available
The receptor is almost never
available
3 < once a year
A pathway to allow for the
impact to occur is sometimes
available
The receptor is sometimes
available
4 Once per year to up to once
per month
A pathway to allow for the
impact to occur is almost
always available
The receptor is almost always
available
5 Once a month - Continuous
A pathway to allow for the
impact to occur is always
available
The receptor is always
available
Step 1: Determine the PROBABILITY of the impact by calculating the average between the Frequency of the Aspect, the
Availability of a pathway to the receptor and the availability of the receptor.
RISK ASSESSMENT REPORT Page 13
Table 2: Determination of Magnitude of impact
Score
SOURCE RECEPTOR
Duration of
impact Extent
Volume / Quantity /
Intensity
Toxicity / Destruction
Effect Reversibility
Sensitivity of environmental
component
1 Lasting days to
a month
Effect limited to the
site. (metres);
Very small quantities /
volumes / intensity
(e.g. < 50L or < 1Ha)
Non-toxic (e.g. water) /
Very low potential to
create damage or
destruction to the
environment
Bio-physical and/or social
functions and/or processes
will remain unaltered.
Current environmental
component(s) are largely disturbed
from the natural state.
Receptor of low significance /
sensitivity
2 Lasting 1 month
to 1 year
Effect limited to the
activity and its
immediate
surroundings. (tens of
metres)
Small quantities /
volumes / intensity
(e.g. 50L to 210L or
1Ha to 5Ha)
Slightly toxic / Harmful
(e.g. diluted brine) / Low
potential to create
damage or destruction to
the environment
Bio-physical and/or social
functions and/or processes
might be negligibly altered
or enhanced / Still
reversible
Current environmental
component(s) are moderately
disturbed from the natural state.
No environmentally sensitive
components.
3 Lasting 1 – 5
years
Impacts on extended
area beyond site
boundary (hundreds
of metres)
Moderate quantities /
volumes / intensity
(e.g. > 210 L < 5000L
or 5 – 8Ha)
Moderately toxic (e.g.
slimes) Potential to
create damage or
destruction to the
environment
Bio-physical and/or social
functions and/or processes
might be notably altered or
enhanced / Partially
reversible
Current environmental
component(s) are a mix of
disturbed and undisturbed areas.
Area with some environmental
sensitivity (scarce / valuable
environment etc.).
4
Lasting 5 years
to Life of
Organisation
Impact on local scale
/ adjacent sites (km’s)
Very large quantities /
volumes / intensity
(e.g. 5000 L –
10 000L or 8Ha–
12Ha)
Toxic (e.g. diesel &
Sodium Hydroxide)
Bio-physical and/or social
functions and/or processes
might be considerably
altered or enhanced /
potentially irreversible
Current environmental
component(s) are in a natural
state.
Environmentally sensitive
environment / receptor
(endangered species / habitats
etc.).
5
Beyond life of
Organisation /
Permanent
impacts
Extends widely
(nationally or globally)
Very large quantities /
volumes / intensity
(e.g. > 10 000 L or >
12Ha)
Highly toxic (e.g. arsenic
or TCE)
Bio-physical and/or social
functions and/or processes
might be
severely/substantially
altered or enhanced /
Irreversible
Current environmental
component(s) are in a pristine
natural state.
Highly Sensitive area (endangered
species, protected habitats etc.)
Step 2: Determine the MAGNITUDE of the impact by calculating the average of the factors above.
RISK ASSESSMENT REPORT Page 14
Table 3: Determination of Severity of impact
ENVIRONMENTAL IMPACT RATING / PRIORITY
MAGNITUDE
PROBABILITY 1
Minor
2
Low
3
Medium
4
High
5
Major
5
Almost Certain Low Medium High High High
4
Likely Low Medium High High High
3
Possible Low Medium Medium High High
2
Unlikely Low Low Medium Medium High
1
Rare Low Low Low Medium Medium
Step 3: Determine the SEVERITY of the impact by plotting the averages that were obtained above for Probability and
Magnitude.
RISK ASSESSMENT REPORT Page 15
4. DMR impact assessment and mitigation
measures table template requirements
In terms of section 16(3)(b) of the Environmental Impact Assessment (EIA) Regulations, 2014, as
amended, any report submitted as part of an application must be prepared in a format that may be
determined by the Competent Authority. The Department of Mineral Resources (DMR) therefore
instructed that the prescribed reports required in respect of applications for an environmental
authorisation for a listed activities triggered are submitted in the exact format of, and provide all the
information required in terms of, the template provided by the Competent Authority.
It is the purpose of the Risk Assessment Report (RAR) to provide the Competent Authority with the
detail associated with the impact assessment table template (as provided below) and included into the
various sections of the BAR / EMPr.
The following table and column headings (shown in Table 4 below), form part of the Shangoni risk
assessment table template, which takes into account the DMR’s BAR / EMPr template (refer to the full
completed table in Section 5 below).
For ease of reference, the various table columns, as required by the DMR, have been incorporated into
one integrated risk assessment table, as is presented in Table 4 below.
RISK ASSESSMENT REPORT Page 16
4.1 Shangoni risk assessment table template in relation to the requirements as per the DMR report template
Table 4: Shangoni risk assessment table template in relation to the requirements as per the DMR report template and table content.
NO. ASPECTS
AFFECTED
ACTIVITY
whether listed
or not listed
POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIZE AND SCALE
of disturbance
SIGNIFICANCE
if not mitigated MITIGATION
TYPE
(modify, remedy,
control, or stop)
through e.g.
noise control
measures)
MITIGATION MEASURES
SIGNIFICANCE
If mitigated
STANDARD TO BE
ACHIEVED
COMPLIANCE
WITH
STANDARDS
TIME PERIOD FOR
IMPLEMENTATION
Impact description
Revers
ibili
ty
Irre
pla
ceable
loss
Pro
babili
ty
Magnitude
Sig
nific
ance
Pro
babili
ty
Magnitude
Sig
nific
ance
For
refe
rencin
g p
urp
oses
As required
in the
following
sections of
the DMR
BAR / EMPr
template:
• Section
3(j) of
Part A
• Section 1
(e) of Part
B
As required in
the following
sections of the
DMR BAR /
EMPr
template:
• Section 3(h)
(v) of Part A
• Section 3(j)
of Part A
• Section 1(d)
(iv) of Part B
• Section 1 (e)
of Part B
• Section 1 (f)
of Part B
As required in the following sections of the
DMR BAR / EMPr template:
• Section 3(h) (v) of Part A
• Section 3(j) of Part A
• Section 1 (e) of Part B
• Section 1 (f) of Part B
As required in
the following
sections of the
DMR BAR /
EMPr template:
• Section 3(j) of
Part A
• Section 1 (e)
of Part B
As required in the
following sections
of the DMR BAR /
EMPr template:
• Section 1(d) (iv)
of Part B.
As required in
the following
sections of the
DMR BAR /
EMPr template:
• Section 3(h)
(v) of Part A
• Section 3(j) of
Part A
This also takes
Duration into
account
As required in the
following sections
of the DMR BAR /
EMPr template:
• Section 3(h)
(v) of Part A
• Section 3(j) of
Part A
• Section 1 (e)
of Part B
• Section 1 (f)
of Part B
As required in the following sections of
the DMR BAR / EMPr template:
• Section 1(d) (iv) of Part B
As required in
the following
sections of the
DMR BAR /
EMPr template:
• Section 3(h)
(v) of Part A
• Section 3(j) of
Part A
This also takes
Duration into
account
As required in the
following sections of
the DMR BAR /
EMPr template:
• Section 1 (e) of
Part B
As required in the
following sections
of the DMR BAR /
EMPr template:
• Section 1(d)
(iv) of Part B.
• Section 1 (f)
of Part B
As required in the
following sections of
the DMR BAR /
EMPr template:
• Section 1(d) (iv)
of Part B.
• Section 1 (f) of
Part B
RISK ASSESSMENT REPORT Page 17
5. Risk assessment and mitigation / management measures
NO. ASPECTS
AFFECTED
ACTIVITY
whether
listed or not
listed
POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIZE AND
SCALE
of
disturban
ce
SIGNIFICANCE
if not mitigated MITIGATION
TYPE
(modify,
remedy,
control, or
stop) through
e.g. noise
control
measures)
MITIGATION MEASURES
SIGNIFICANCE
If mitigated
STANDARD TO
BE ACHIEVED
COMPLIANCE WITH
STANDARDS
TIME PERIOD FOR
IMPLEMENTATION
Impact description
Revers
ibilit
y
Irre
pla
ceab
le lo
ss
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
1 Air Quality Activity 1 - 26
Impact description: Dust generation
from internal access roads and
general demolition and crushing
activities.
Extent of impact: Site and immediate
surroundings.
Duration of impact: Lifecycle of the
project.
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 4 2
Mediu
m
Control
• Vehicles should be regularly
serviced to minimise atmospheric
emissions.
• The Air quality monitoring
programme will be continued
with.
• Dust suppression of roads at
regular intervals or during windy
periods.
• Ensure adequate dust level
monitoring is put in place, where
applicable.
2 1
Low
Minimise
deterioration of
ambient air quality
Dust suppressing
methods to reduce dust
to comply with the Dust
Control Regulation GNR
827 of 2013 and
NEM:AQA, 2004.
2 years
2 Air Quality Activity 1 - 26
Impact description: Unpleasant
odours generated from poorly
maintained/ serviced portable
chemical toilets and asbestos related
emissions from decommissioning of
buildings and pipelines.
Extent of impact: Site and immediate
surroundings.
Duration of impact: Lifecycle of the
project.
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 3 2
Mediu
m
Control
• Ensure that portable chemical
toilets are maintained at agreed
upon intervals by an appropriate
contractor.
• Comprehensive asbestos survey
to be undertaken prior to
decommissioning and
demolishing.
• All asbestos containing material
must be removed and disposed
in accordance with the Asbestos
Regulations GNR 1637 of 2002
with specific reference to Section
20 (disposal) and Section 21
(demolition).
2 1
Low
Minimise
deterioration of
ambient air quality
Air quality management
in accordance with the
National Environmental
Management: Air Quality
Act (Act No 39 of 2004);
Regulations there under
and amendments
thereto.
Emergency
preparedness and
response in compliance
with the compliance with
the Mine Health and
Safety Regulations under
the Mine Health and
Safety Act (1996);
Asbestos Management
and Monitoring Plan.
2 years
3 Air Quality Activity 24
Impact description: Stored chemicals
and hazardous wastes may produce
noxious or irritating odours.
Extent of impact: Site and immediate
surroundings.
Duration of impact: Lifecycle of the
project.
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 4 2
Mediu
m
Control
• Chemicals to be stored in an
appropriately designed
container.
• Where possible, hazardous
wastes are to be stored in
sealed receptacles.
• Hazardous chemicals are to
always be stored in an area
where regularly maintained
firefighting equipment is
available.
• Where possible, polluted soils
should be stored for the shortest
possible time period prior to
disposal.
2 1
Low
Minimise
deterioration of
ambient air quality
Air quality management
in accordance with the
National Environmental
Management: Air Quality
Act (Act No 39 of 2004);
Regulations there under
and amendments
thereto.
2 years
RISK ASSESSMENT REPORT Page 18
NO. ASPECTS
AFFECTED
ACTIVITY
whether
listed or not
listed
POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIZE AND
SCALE
of
disturban
ce
SIGNIFICANCE
if not mitigated MITIGATION
TYPE
(modify,
remedy,
control, or
stop) through
e.g. noise
control
measures)
MITIGATION MEASURES
SIGNIFICANCE
If mitigated
STANDARD TO
BE ACHIEVED
COMPLIANCE WITH
STANDARDS
TIME PERIOD FOR
IMPLEMENTATION
Impact description
Revers
ibilit
y
Irre
pla
ceab
le lo
ss
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
4 Ecology Activity 1 – 26
Impact description: Impacts on floral
biodiversity due to alien floral
species invasion/proliferation.
Extent of impact: Site and
surrounding area
Duration of impact Lifecycle of the
project
Part
ially
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 4 2
Mediu
m
Control
• Inform employees about
dominant alien vegetation
species.
• Implement alien vegetation
control plan specific for the
exotic/weed species identified
within the area.
• All development footprint areas
should remain as small as
possible and should not
encroach onto more sensitive
open veld areas.
• Proliferation and a further
increase of alien and invasive
grass species are expected
within disturbed areas. These
species should be eradicated in
line with the specialist
recommendations and
controlled to prevent their
spread beyond the site
boundary.
• Removal of the alien and weed
species encountered on the
property in order to comply with
existing legislation
(amendments to the regulations
under the Conservation of
Agricultural Resources Act,
1983 and Section 28 of the
National Environmental
Management Act, 1998).
2 2
Low
Minimise the loss
of species diversity
Alien & Invasive Species
Control Program.
System and Operational
Procedures and training
programme in
compliance with
ISO14001.
Biodiversity and alien
invasive management in
accordance with NEMBA,
2004.
2 years
5 Ecology Activity 1 - 26
Impact description: Destruction of
habitat may impact on floral
biodiversity within the CDM
Beneficiation Plant area.
Extent of impact: Site and
surrounding area
Duration of impact Lifecycle of the
project
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 2 1
Low
Control
• All development footprint areas
should remain as small as
possible and should not
encroach onto surrounding
more sensitive open veld areas.
• All soils compacted as a result
of activities should be ripped,
profiled and monitored to
ensure establishment of natural
vegetation.
• Appropriate waste removal and
disposal should be provided as
to prevent refuse dumping in
surrounding open veld areas.
1 1
Low
Limit the loss of
vegetation
cover.
System and Operational
Procedures and training
programme in
compliance with
ISO14001.
Biodiversity and alien
invasive management in
accordance with NEMBA,
2004.
2 years
RISK ASSESSMENT REPORT Page 19
NO. ASPECTS
AFFECTED
ACTIVITY
whether
listed or not
listed
POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIZE AND
SCALE
of
disturban
ce
SIGNIFICANCE
if not mitigated MITIGATION
TYPE
(modify,
remedy,
control, or
stop) through
e.g. noise
control
measures)
MITIGATION MEASURES
SIGNIFICANCE
If mitigated
STANDARD TO
BE ACHIEVED
COMPLIANCE WITH
STANDARDS
TIME PERIOD FOR
IMPLEMENTATION
Impact description
Revers
ibilit
y
Irre
pla
ceab
le lo
ss
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
6 Ecology Activity1 – 26
Impact description: General
disturbance to overall floral
biodiversity due to dust generation,
indiscriminate fires and ineffective
monitoring.
Extent of impact: Site and
surrounding area
Duration of impact Lifecycle of the
project
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 4 2
Mediu
m
Control
• It must be ensured that all roads
and construction areas are
regularly sprayed with water or
treated with other dust
suppression measures in order
to curb dust generation. This is
particularly necessary during
the dry season when increased
levels of dust generation can be
expected. However, care should
be taken not to over-spray
causing water run-off and
subsequent sediment loss into
adjacent waterways.
• Ongoing monitoring of dust
should be employed to ensure
identification of increased dust
levels over time or in specific
areas.
• If any excessive dying out of
vegetation occurs in areas of
dust generation, measures to
mitigate the impact should be
immediately sought.
• All informal fires on the property
should be prohibited.
• Identify areas where the value of
the biological resource warrants
protection and therefore
controlled access by the
contractors.
• Maintenance of fences to
ensure that access control is
maintained.
• Compliance with regulations
under the National Forest and
Fire Laws Amendment Act,
2001.
2 2
Low
Limit the
disturbance to the
overall floral
biodiversity.
Dust monitoring and dust
suppression to reduce
dust to comply with NEM:
AQA, 2004 and
regulations there
under.
Compliance with
regulations under the
National Forest and Fire
Laws Amendment Act,
2001.
General implementation
of activities taking Mining
and Biodiversity
Guidelines into account.
2 years
7 Groundwater Activity 1 – 26
Impact description: Groundwater
may become contaminated by
hydrocarbons leaking from
equipment and machinery, stored
materials at the contractor support
area and temporarily stockpiled
hazardous waste.
Extent of impact: Site and
surrounding area
Duration of impact Lifecycle of the
project
Part
ially
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 4 2
Mediu
m
Control
• All equipment and machinery
are to be appropriately
maintained and checked for
leaks regularly;
• Standing machinery are to be
equipped with drip trays.
• Hydrocarbons, materials and
waste stored on site are to be
stored in areas approved by
CDM Environmental and are to
be stored in a bunded area on
an impermeable surface.
1 1
Low
Minimise the
impact on
Groundwater
Quality.
Water management
measures in compliance
with NWA, 1998 and GN
704, 1999.
Compliance with DWS’s
Best Practice Guideline
Series in terms of
integrated water and
waste management and
monitoring.
Groundwater monitoring
programme.
2 years
RISK ASSESSMENT REPORT Page 20
NO. ASPECTS
AFFECTED
ACTIVITY
whether
listed or not
listed
POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIZE AND
SCALE
of
disturban
ce
SIGNIFICANCE
if not mitigated MITIGATION
TYPE
(modify,
remedy,
control, or
stop) through
e.g. noise
control
measures)
MITIGATION MEASURES
SIGNIFICANCE
If mitigated
STANDARD TO
BE ACHIEVED
COMPLIANCE WITH
STANDARDS
TIME PERIOD FOR
IMPLEMENTATION
Impact description
Revers
ibilit
y
Irre
pla
ceab
le lo
ss
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
8 Noise Activity 1 – 26
Impact description: Increase in
ambient noise levels by demolition
related machinery.
Increase in ambient noise levels by
demolition activities associated with
the dismantling of structures.
Extent of impact: Site and
surrounding area
Duration of impact Lifecycle of the
project
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 3 1
Low
Control
• Demolition activities are to take
place during the approved work
hours, these are to be known to
and agreed upon with all
contractors.
• Noise monitoring will be
conducted during the
decommissioning phase in
order to ensure compliance with
the relevant standard.
• Generators must be switched off
when not used.
2 1
Low
Minimise the noise
impact on sensitive
receptors
SABS Code of Practice
0103 of 2008: The
measurement and rating
of environmental noise
with respect to land use,
health, annoyance and to
speech communication.
SABS Code of Practice
0328 of 2008:
Environmental Noise
Impact Assessments.
2 years
9 Noise Activity 25
Impact description: Increase in
ambient noise levels by vehicles
removing material and waste from
the site.
Extent of impact: Site and
surrounding area.
Duration of impact: Lasting one
month to a year
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 2 1
Low
Control
• Silencers shall be fitted to the
heavy machinery where
possible.
• Normal vehicles should have
silencers as required by the
relevant Road Traffic Acts.
• Audible reverse alarms will not
be removed as it reduces the
risk of incidents involving these
vehicles.
• A complaints register should be
in place at the site. All
complaints, solutions and
agreements between the mine
and complaining parties will be
kept in a specific file in the
Environmental Specialist’s
office.
• The mine is advised to instruct
drivers of trucks to use hooters
in a disciplined manner for
purposes of safety only, not for
signalling or any other purpose.
1 1
Low
Minimise the noise
impact on sensitive
receptors.
SABS Code of Practice
0103 of 2008: The
measurement and rating
of environmental noise
with respect to land use,
health, annoyance and to
speech communication.
SABS Code of Practice
0328 of 2008:
Environmental Noise
Impact Assessments
2 years
RISK ASSESSMENT REPORT Page 21
NO. ASPECTS
AFFECTED
ACTIVITY
whether
listed or not
listed
POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIZE AND
SCALE
of
disturban
ce
SIGNIFICANCE
if not mitigated MITIGATION
TYPE
(modify,
remedy,
control, or
stop) through
e.g. noise
control
measures)
MITIGATION MEASURES
SIGNIFICANCE
If mitigated
STANDARD TO
BE ACHIEVED
COMPLIANCE WITH
STANDARDS
TIME PERIOD FOR
IMPLEMENTATION
Impact description
Revers
ibilit
y
Irre
pla
ceab
le lo
ss
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
10
Soil and
Land
Capability
Activity 1 - 24
Impact description: Removal of
potentially contaminated material.
Extent of impact: Site
Duration of impact: Lifecycle of the
project
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 4 2
Mediu
m
Control
• Removal of all potentially
polluting infrastructure.
• Where appropriate separate
clean material from polluted
material.
• Buliding rubble and concrete
should be inspected for any
contamination before disposed
of at the CDM licenced landfill
site. Should it be identified that
the building rubble or concrete is
contaminated, these materials
will need to be disposed of by an
appointed waste disposal
certificated contractor to a
permitted landfill site.
• Store all hazardous material
within the footprint of the
salvage yard area as per the
requirements of the Waste
Management Licence for the
salvage yard. Hazardous waste
should be disposed of by an
appointed waste disposal
certificated contractor to a
permitted landfill site.
• Contaminated soil should be
stored in skips demarcated for
this purpose and disposed of by
an appointed waste disposal
certificated contractor to a
permitted landfill site.
• Excavation of the contaminated
material for disposal to a
licensed landfill through waste
classification analysis to
ascertain correct disposal
methods in terms of the National
Norms and Standards.
• Remove existing asbestos
containing material using a
certified asbestos removal
contractor for appropriate
disposal to a certified site
• Remove any existing tyres
stored onsite as these are the
potential source of
contamination if burning where
to be undertaking again.
• Remove substations and
surrounding contaminants,
• Where required, flush any
pipelines to remove hazardous
material and treat material as
waste.
2 1
Low
Minimise the
impact on soil and
land capability.
System and Operational
Procedures and training
programme in
compliance with
ISO14001.
Reasonable precaution
will be taken to prevent
spillage and in case there
is spillage, cleaning
procedures to be
undertaken in order to
comply with the principles
of pollution prevention
and duty of care (NEMA,
1998).
In Compliance with the
National Norms and
Standards for the
Remediation of
Contaminated Land and
Soil Quality (GNR.331 of
2014), thereunder.
Managing general and/or
hazardous waste in a
manner as to comply with
NEM:WA, 2008.
Water management
measures in compliance
with NWA, 1998 and GN
704, 1999.
Compliance to the Waste
Management Licence for
the Salvage yard and
Landfill site.
2 years
RISK ASSESSMENT REPORT Page 22
NO. ASPECTS
AFFECTED
ACTIVITY
whether
listed or not
listed
POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIZE AND
SCALE
of
disturban
ce
SIGNIFICANCE
if not mitigated MITIGATION
TYPE
(modify,
remedy,
control, or
stop) through
e.g. noise
control
measures)
MITIGATION MEASURES
SIGNIFICANCE
If mitigated
STANDARD TO
BE ACHIEVED
COMPLIANCE WITH
STANDARDS
TIME PERIOD FOR
IMPLEMENTATION
Impact description
Revers
ibilit
y
Irre
pla
ceab
le lo
ss
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
11
Soil and
Land
Capability
Activity 1 – 26
Impact description: Frequent
movement of heavy machinery may
lead to the compaction of valuable
soils.
Extent of impact: Site and
surrounding area
Duration of impact Lifecycle of the
project
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 4 2
Mediu
m
Control
• Other than working areas,
heavy machinery are only to
travel along demarcated roads
and are not to enter any areas
that have not been authorized.
2 1
Low
Minimise the
impact on soil and
land capability.
In Compliance with the
National Norms and
Standards for the
Remediation of
Contaminated Land and
Soil Quality (GNR.331 of
2014), thereunder.
System and Operational
Procedures and training
programme in
compliance with
ISO14001.
2 years
12
Soil and
Land
Capability
Activity 1 – 26
Impact description: Disturbance and
removal of soils may lead to
erosional processes;
Extent of impact: Site and
surrounding area
Duration of impact Lifecycle of the
project
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 4 2
Mediu
m
Control
• Where soils are disturbed on
slopes or within areas where soil
erosion is likely to take place,
mitigation is to take place in the
form of the positioning of
surface water flow barriers or
gabions.
1 1
Low
Minimise the
impact on soil and
land capability.
Rehabilitation in terms of
MPRDA and NEMA
principles.
Water management
measures in compliance
with NWA, 1998 and GN
704, 1999.
Compliance with DWS’s
Best Practice Guideline
Series in terms of
integrated water and
waste management and
monitoring.
2 years
13
Soil and
Land
Capability
Activity 1 – 26
Impact description: Soils may
become contaminated by
hydrocarbons leaking from
construction equipment and
machinery; stored materials at the
contractor support area, temporarily
stockpiled hazardous waste
Extent of impact: Site and
surrounding area
Duration of impact Lifecycle of the
project
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 4 2
Mediu
m
Control
• All equipment and machinery
are to be appropriately
maintained and checked for
leaks regularly;
• Standing machinery are to be
equipped with drip trays.
• Hydrocarbons, materials and
waste stored on site are to be
stored in areas approved by
CDM Environmental., and are to
be stored in a bunded area on
an impermeable surface.
• General waste receptacles are
to be placed at areas where
demolition or decommissioning
activities are to take place,
these are to be sufficient for
waste that is expected to be
generated in a single day, not
less, and the receptacle is to
have a lid on it to prevent litter
from being dispersed by wind;
• Sites are to be cleaned and all
refuse removed at the end of
each work day.
1 1
Low
Minimise impact
on soils.
System and Operational
Procedures and training
programme in
compliance with
ISO14001.
Reasonable precaution
will be taken to prevent
spillage and in case there
is spillage, cleaning
procedures to be
undertaken in order to
comply with the principles
of pollution prevention
and duty of care (NEMA,
1998).
Managing general and/or
hazardous waste in a
manner as to comply with
NEM: WA, 2008.
Water management
measures in compliance
with NWA, 1998 and GN
704, 1999.
2 years
RISK ASSESSMENT REPORT Page 23
NO. ASPECTS
AFFECTED
ACTIVITY
whether
listed or not
listed
POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIZE AND
SCALE
of
disturban
ce
SIGNIFICANCE
if not mitigated MITIGATION
TYPE
(modify,
remedy,
control, or
stop) through
e.g. noise
control
measures)
MITIGATION MEASURES
SIGNIFICANCE
If mitigated
STANDARD TO
BE ACHIEVED
COMPLIANCE WITH
STANDARDS
TIME PERIOD FOR
IMPLEMENTATION
Impact description
Revers
ibilit
y
Irre
pla
ceab
le lo
ss
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
14 Visual Activity 1 – 26
Impact description: The visual
environment will change once the
infrastructure has been
decommissioned and the buildings
crushed/broken.
Extent of impact: Site and
surrounding area.
Duration of impact Lifecycle of the
project
Part
ially
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 3 2
Mediu
m
Control
• The contractor is to ensure that
all sites are cleared up at the
end of the day and all general
refuse removed and disposed of
at a licensed facility.
1 1
Low
Minimise the visual
impact and sense
of the place
System and Operational
Procedures and training
programme in
compliance with
ISO14001.
In compliance with the
Rehabilitation,
Decommissioning and
Closure plans and
Closure Objectives.
In Compliance with the
National Norms and
Standards for the
Remediation of
Contaminated Land and
Soil Quality (GNR.331 of
2014), thereunder.
In compliance with
principles contained in
the MPRDA, 2002, Mine
Health and Safety Act,
1996, NEMA, 1998,
NEM: WA, 2008,
Regulations there under
and amendments
thereto.
The continued
implementation of
requirements contained
in the NEM:BA (2004)
and the regulations
thereunder.
2 years
15 Heritage and
Cultural Activity 1 - 23
Impact description:
Decommissioning of the beneficiation
plant and crushing of building
structures could result in a loss of
heritage resources.
Extent of impact: Site.
Duration of impact Lifecycle of the
project
Part
ially
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 5 2
Mediu
m
Control
• Apply for the necessary permits
from SAHRA, if required.
• Comply with the conditions of
the permits
• Only areas approved by the
CDM Env., in consultation with
the heritage report and permits,
may be destroyed/impacted.
Should any artefacts be
unearthed, work should be
halted, and the heritage
specialist should be contacted
immediately.
1 1
Low
Minimise the
impact on heritage
resources
System and Operational
Procedures and training
programme incompliance
with ISO14001.
The management of
heritage resources: In
compliance with the
National Heritage
Resources Act (Act No.
25 of 1999), and
amendments thereto.
2 years
RISK ASSESSMENT REPORT Page 24
NO. ASPECTS
AFFECTED
ACTIVITY
whether
listed or not
listed
POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIZE AND
SCALE
of
disturban
ce
SIGNIFICANCE
if not mitigated MITIGATION
TYPE
(modify,
remedy,
control, or
stop) through
e.g. noise
control
measures)
MITIGATION MEASURES
SIGNIFICANCE
If mitigated
STANDARD TO
BE ACHIEVED
COMPLIANCE WITH
STANDARDS
TIME PERIOD FOR
IMPLEMENTATION
Impact description
Revers
ibilit
y
Irre
pla
ceab
le lo
ss
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
Pro
bab
ilit
y
Mag
nit
ud
e
Sig
nif
ican
ce
16 Socio-
economic Activity 1 – 26
Impact description: Creation of
Employment
Extent of impact: Site
Duration of impact: Lifecycle of the
project
Irre
vers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha Positive Control
• Local companies and labour
should be utilized where
possible.
Positive
Increase impact
on local
economy
System and Operational
Procedures and training
programme in
compliance with
ISO14001.
Social Labour Plan,
Mining Works
Programme.
2 years
17 Traffic Activity 25
Impact description: Decrease in
general condition of roads and
increased safety risk to third party
road users due to heavy vehicle
traffic on roads.
Extent of impact: Site
Duration of impact: Lifecycle of the
project
Revers
ible
Low
Degre
e
Decommissioning
Phase
Within the
32 ha 5 3
Hig
h
Control
• Where possible, heavy vehicle
traffic should be discouraged
from using roads during peak
hour traffic times.
• Road signage and speed limits
should be adhered to.
• Any heavy load transport will be
done in consultation with the
Roads Department
• Transport of materials and
waste will comply with the
necessary road regulations.
1 1
Low
Minimise risk on
Road
infrastructure and
safety to third party
road users.
Comply with municipal
and departmental (Roads
Department)
requirements for roads.
National Road Traffic Act;
Regulations there under
and amendments
thereto.
2 years
RISK ASSESSMENT REPORT Page 25
6. Summary of the positive and negative
implications and risks of the proposed activity
and identified alternatives
Table 5: Summary of the negative and positive environmental impacts, after mitigation
NO. ACTIVITY POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIGNIFICANCE
If mitigated
Air Quality
1 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area
Dust generation from internal
access roads and general
demolition and crushing
activities.
Decommissioning
Phase
Low
2 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area
Unpleasant odours
generated from poorly
maintained/ serviced
portable chemical toilets and
asbestos related emissions
from decommissioning of
buildings and pipelines.
Decommissioning
Phase
Low
3 Removal of contaminated soils to a
permitted landfill site (where
required).
Stored chemicals and
hazardous wastes may
produce noxious or irritating
odours.
Decommissioning
Phase
Low
Ecology
4 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area
Impacts on floral biodiversity
due to alien floral species
invasion/proliferation.
Decommissioning
Phase
Low
RISK ASSESSMENT REPORT Page 26
NO. ACTIVITY POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIGNIFICANCE
If mitigated
5 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area
Destruction of habitat may
impact on floral biodiversity
within the CDM Beneficiation
Plant.
Decommissioning
Phase
Low
6 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area
General disturbance to
overall floral biodiversity due
to dust generation,
indiscriminate fires and
ineffective monitoring.
Decommissioning
Phase
Low
Groundwater
7 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area
Groundwater may become
contaminated by
hydrocarbons leaking from
equipment and machinery,
stored materials at the
contractor support area,
temporarily stockpiled
hazardous waste
Decommissioning
Phase
Low
Noise
8 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area
Increase in ambient noise
levels by demolition related
machinery.
Increase in ambient noise
levels by demolition activities
associated with the removal
of redundant structures;
Decommissioning
Phase
Low
RISK ASSESSMENT REPORT Page 27
NO. ACTIVITY POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIGNIFICANCE
If mitigated
9 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area
Increase in ambient noise
levels by vehicles removing
material and waste from the
site.
Decommissioning
Phase
Low
Soil and land capability
10 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils.
Disposal of potentially
contaminated material.
Decommissioning
Phase
Low
11 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area
Frequent movement of
heavy machinery may lead to
the compaction of valuable
soils.
Decommissioning
Phase
Low
12 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area
Disturbance and removal of
soils may lead to erosional
processes
Decommissioning
Phase
Low
13 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area
Soils may become
contaminated by
hydrocarbons leaking from
construction equipment and
machinery; stored materials
at the contractor support
area, temporarily stockpiled
hazardous waste
Decommissioning
Phase
Low
RISK ASSESSMENT REPORT Page 28
NO. ACTIVITY POTENTIAL IMPACT
PHASE
in which impact
is anticipated
SIGNIFICANCE
If mitigated
Visual
14 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area
The visual environment will
change once the
infrastructure has been
decommissioned and the
buildings crushed/broken.
Decommissioning
Phase
Low
Heritage and cultural
15 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete.
Decommissioning of the
beneficiation plant and
crushing of building
structures could result in a
loss of heritage resources.
Decommissioning
Phase
Low
Socio Economic
16 Decommissioning of the
Beneficiation Plant and associated
infrastructure; crushing of building
material and concrete; removal of
contaminated soils and transport of
workers; material and waste to and
from site and establishment and
operation of a contractor support
area;
Creation of Employment Decommissioning
Phase
Positive
Traffic
17 Transportation of workers, materials
and waste to and from site.
Decrease in general
condition of roads and
increased safety risk to third
party road users due to
heavy vehicle traffic on
roads.
Decommissioning
Phase
Low
RISK ASSESSMENT REPORT Page 29
7. Cumulative impacts
Cumulative impacts refer to the situation where an activity may in itself not have a significant impact,
but may become significant when added to the existing and potential impacts from similar or different
activities in the area. Cumulative impacts can be defined as “changes to the environment that are
caused by an action in combination with other past, present and future human actions”
(DEAT, 2004). Different types of cumulative impacts can occur, depending on the characteristics
thereof. Table 7 below presents a summary of these cumulative impacts as per Guideline 5:
Assessment of Alternatives and Impacts (DEAT, 2006).
Table 6: Types of cumulative impacts
TYPE DESCRIPTION
Additive Where it adds to the impact which is caused by other
similar impacts.
Interactive impact A cumulative impact is caused by different impacts that
combine to form a new kind of impact.
Countervailing The net adverse cumulative impact is less than the
sum of the individual impacts.
Synergistic The net adverse cumulative impact is greater than the
sum of the individual impacts.
The cumulative impacts as presented in Table 7 below, have been identified.
Table 7: Cumulative impacts
ENVIRONMENTAL
COMPONENT
(ASPECTS
AFFECTED)
ACTIVITY POTENTIAL IMPACT DESCRIPTION
Air Quality Demolition and crushing
of infrastructure.
Impact on the air quality as a result of dust emanating from
the demolition and crushing of buildings and concrete
infrastructure.
Ecology Demolition of
infrastructure.
Destruction of habitat may impact on floral biodiversity within
the CDM Beneficiation Plant.
Groundwater
Hydrocarbons leaking
from equipment and
machinery, stored
materials at the
contractor support area,
temporarily stockpiled
hazardous waste.
Cumulative impact on the ground water due to leaking
hydrocarbons. The contaminated runoff will contaminate
groundwater as a result.
Noise Demolition activities. Increase in ambient noise levels by demolition related
machinery.
RISK ASSESSMENT REPORT Page 30
ENVIRONMENTAL
COMPONENT
(ASPECTS
AFFECTED)
ACTIVITY POTENTIAL IMPACT DESCRIPTION
Soil and Land
Capability
Movement of heavy
machinery and spillage
of hydrocarbons.
The chemicals and hydrocarbon materials utilised to
demolish structures may cumulatively impact on the quality
of the soil in the event of large spillages.
Visual Decommissioning of the
CDM Beneficiation Plant
.
The visual environment will change once the infrastructure
has been decommissioned and the buildings crushed/broken.
Heritage and
Cultural
Decommissioning of the
CDM Beneficiation Plant.
Decommissioning of the beneficiation plant and crushing of
building structures could result in a loss of heritage
resources.
Socio-economic Utilisation of local
companies during the
decommissioning of the
CDM Beneficiation Plant.
Unemployment in communities close to the CDM could result
in community unrests and strikes for jobs which will lengthen
the project duration.
Traffic Traffic caused by
vehicles/trucks driving to
and from the CDM
Beneficiation Plant.
Nuisance to community and neighbouring residents could
result due to the increase in traffic from the decommissioning
activities, along with current traffic related impacts from
vehicles travelling on the current road network.
RISK ASSESSMENT REPORT Page 31
8. Proposed impact management objectives and
the impact management outcomes for
inclusion into the EMPr
Based on the assessment and where applicable, the recommendations from specialist reports, the table
below summarises the impact management objectives and the impact management outcomes for the
development for inclusion in the EMPr as well as for inclusion as conditions of authorisation.
Table 8: Impact management objectives and the impact management outcomes
ENVIRONMENTAL
ASPECT OBJECTIVE
SUMMARY OF IMPACT MANAGEMENT
OUTCOME
Air Quality Prevent the deterioration of air
quality
Air quality monitoring programme
Ecology Minimise the loss of species
diversity and prevent the loss of
vegetation
cover. Minimise the disturbance
to the overall floral biodiversity.
Alien & Invasive Species Control Program.
Dust monitoring and dust suppression
Groundwater
Minimise the impact on
Groundwater Quality.
Groundwater monitoring programme
Noise Prevent and mitigate against the
effects of noise on sensitive
receptors.
Noise monitoring programme
Soil and Land
Capability
Reduce/prevent the
contamination of soil and
Minimise the removal of soils.
Soil sampling monitoring.
Waste Management License for salvage yard and
landfill site.
Visual Reduce the visual impact and
sense of the place
Rehabilitation, Decommissioning and Closure
plans and Closure Objectives.
Heritage and Cultural Prevention of damage to heritage
and cultural structures/artefacts.
Apply for the necessary permits from SAHRA if
required and comply with permit requirements.
Socio-economic Prevent socio economic impacts
by employment opportunities.
Local companies and labour should be utilized
where possible.
Traffic Prevent dangerous traffic
occurrences and traffic
congestion.
Transport of materials and waste to comply with the
necessary road regulations and requirements.
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