Professional services: subsurface instability investigation at ntcsa vulcan substation

NEC3 Professional Services Contract (PSC3)

Key dates (conditions to be met): Safety file approval 4 weeks after contract award; Phase 1 geotechnical investigation and methane gas studies 2 weeks after safety file approval; Phase 2 geotechnical investigations 8 weeks after Phase 1 completion; Phase 3 drilling of boreholes 8 weeks after Phase 2 completion; laboratory testing 4 weeks; contractor's report 2 weeks. The starting date and completion date are TBC. The Consultant must submit a first programme for acceptance within 2 weeks of the Contract Date. The quality policy statement and quality plan are due within 5 working days of the Contract Date. The defects date is 12 weeks after Completion.

Employer's Agent: located at Cnr Watermeyer & Jellicoe Street, Emalahleni 1035. The Employer's Agent acts for the Employer for all purposes of this contract. No direct contact names or emails are provided in the document.

Returnable documents: C1.1 Form of Offer & Acceptance (signed offer, including total price exclusive and inclusive of VAT), C1.2b Contract Data provided by the Consultant (key people, staff rates, activity schedule), C2.2 Activity Schedule (priced BOQ for sinkhole assessment), and Schedule of Deviations (if any). All must be completed and signed by a duly authorised representative. The offer must remain valid for the period stated in the Tender Data. Any deviations must be listed in the Schedule of Deviations; a covering letter is not part of the contract.

The contract is NEC3 PSC3 Option A (priced contract with activity schedule). No explicit scoring split or minimum qualifying thresholds are stated in the provided document. The tenderer must be a professionally registered geologist with SACNASP. The tenderer must complete Contract Data Part Two, including key people, staff rates, and activity schedule. The contract includes mandatory Z-clauses covering B-BBEE status changes (notification within 7 days; failure may lead to termination), ethics (prohibited actions), and insurance requirements. The Employer is NTCSA SOC Ltd; the contract is governed by South African law.

Scope: Investigate subsurface instability at and around the Vulcan Substation (Emalahleni) and adjacent areas, including the Arnot Kendal 400kV tower 227, to determine the risk of failure to NTCSA infrastructure. The area is affected by historic bord-and-pillar mining, underground voids, spontaneous combustion of coal pillars, and progressive subsidence. Services include: (1) comprehensive subsidence investigation methodology; (2) capture the extent of the phenomenon and impacts on critical infrastructure; (3) compile and issue a detailed report of findings and proposed mitigation solutions. Methane gas studies: review historical methane data, validate and reconcile datasets, identify gas accumulation zones, baseline and continuous monitoring of methane concentrations in subsurface voids and boreholes, assess migration pathways, evaluate explosion and asphyxiation risks, recommend mitigation measures (controlled venting, gas drainage), and provide a land subsidence and methane emission risk assessment report. Geotechnical investigations: desk study, site walkover, safe working procedure, geotechnical investigations (phases as per key dates), drilling of boreholes, laboratory testing, and contractor's report. Rehabilitation strategy: guidance on feasibility of open-cast mining as a rehabilitation intervention, including technical and economic feasibility, environmental authorisation, highwall stability and geotechnical modelling, and handling of exposed coal. The contract period is 8 months.

Period of 8 months

11.2(9) The services are

• Conduct comprehensive methodology for

conducting subsidence investigations at

and around the Vulcan Substation and

adjacent areas to determine the level of

risk of failure NTCSA infrastructure (i.e.

The Employer requires a professionally Geologists (referred to hereafter as the Contractor) to:

• conduct comprehensive methodology for conducting subsidence investigations at and around the

2.2.1 Investigation Methodology

2.2.1.1 Desk Study

2 Name:

Job

Responsibilities:

Only if CV's (and further key persons data including

required CVs) are appended to Tender Schedule

entitled .

11.2(3) The completion date for the whole of the

services is

11.2(10) The following matters will be included in

the Risk Register

2 Available from Engineering Contract Strategies Tel 011 803 3008 Fax 011 803 3009 or www.ecs.co.za

PART C2: PRICING DATA PAGE xviii C2 PSC3/A COVER

NTCSA SOC Ltd CONTRACT NO.

Investigate potential subsurface instability in the vicinity of the ntcsa vulcan substation for a

Period of 8 months

11.2(13) The staff rates are: name/designation rate

Either complete here or cross refer to a schedule

in Part C2.2

25.2 The Employer provides access to the access to access date

following persons, places and things

31.1 The programme identified in the Contract

Data is

50.3 The expenses stated by the Consultant item amount

are

A Priced contract with activity schedule

11.2(14) The activity schedule is in

11.2(18) The tendered total of the Prices is R (in figures)

(in words), excluding VAT

PART C2: PRICING DATA PAGE xix C2 PSC3/A COVER

NTCSA SOC Ltd CONTRACT NO.

Investigate potential subsurface instability in the vicinity of the ntcsa vulcan substation for a

Period of 8 months

Part 2: pricing data

PSC3 Option A

Document Title No of

reference pages

C2.1 Pricing assumptions: Option A [●]

C2.2 The activity schedule [●]

PART C2: PRICING DATA PAGE xx C2 PSC3/A COVER

NTCSA SOC Ltd CONTRACT NO.

Investigate potential subsurface instability in the vicinity of the ntcsa vulcan substation for a

Period of 8 months

C2.1 Pricing assumptions: Option A

How work is priced and assessed for payment

Option A is a lump sum form of contract where the work to be done is broken down into well defined activities

each listed in the activity schedule and priced by the tendering consultant as a lump sum. (See clause

11.2(18)).

Only completed activities which are without Defects are assessed for payment at each assessment date; no

part payment is made if the activity is not completed by the assessment date. (See clause 11.2(15)).

The activity schedule may change after the Contract Date as a result of compensation events. (See clause

11.2(14)).

Function of the Activity Schedule

The Activity Schedule is only a pricing document. Clause 53.1 in Option A states: “Information in the Activity

Schedule is not Scope”. Specifications and descriptions of the service or any constraints on how it is to be

done are included in the Scope and per Clause 21.1, “The Consultant Provides the Services in accordance

with the Scope” and therefore not in accordance with the Activity Schedule.

Link to the programme

Clause 31.4 states that “The Consultant provides information which shows how each activity on the Activity

Schedule relates to the operations on each programme which he submits for acceptance”. Ideally the

tendering consultant will develop a high level programme first then resource each activity on the programme

and thus arrive at the lump sum price for that activity both of which can be entered into the activity schedule.

Preparing the activity schedule

Generally it is the tendering consultant who prepares the activity schedule by breaking down the work

described within the Scope into suitable activities which can be well defined, shown on a programme and

priced as a lump sum.

The description of each activity must be sufficient to determine exactly what work is included within it and to

know when it has been completed.

The Employer, in his Instructions to Tenderers or in a Tender Schedule, may have listed some items that

he requires the Consultant to include in his activity schedule and be priced accordingly.

It is assumed that in preparing his activity schedule the Consultant:

• Has taken account of the guidance given in the PSC3 Guidance Notes;
• Understands the function of the Activity Schedule and how work is priced and paid for;
• Is aware of the need to link the Activity Schedule to activities shown on each programme which he

submits for acceptance by the Employer;

• Has listed and priced activities in the activity schedule which are inclusive of everything necessary

and incidental to Providing the Service in accordance with the Scope, as it was at the Contract Date,

as well as correct Defects except correcting a Defect for which the Consultant is not liable;

• Has priced work he decides not to show as a separate activity within the Prices of other listed

activities in order to fulfil the obligation to complete the service for the tendered total of the Prices.

• Understands there is no adjustment to the lump sum Activity Schedule price if the amount, or

quantity, of work within that activity later turns out to be different to that which the Consultant

Part c2: pricing data c2.1 PSC3/A pricing assumptions

NTCSA SOC Ltd CONTRACT NO.

Investigate potential subsurface instability in the vicinity of the ntcsa vulcan substation for a

Period of 8 months

estimated at time of tender. The only basis for a change to the Prices is as a result of a compensation

event.

However, the Consultant does not have to allow in his Prices for matters that may arise as a result of a

compensation event.

Expenses

Expenses are not included in the activity schedule items and are assessed separately at each assessment

date, unless an additional condition of contract (Z clause) is included which requires that expenses be

included within activity Prices and not paid separately.

Expenses associated with employing a staff member in Providing the Services are listed separately either

by the Employer in Contract Data provided by the Employer or by the Consultant in Contract Data provided

by the Consultant. As only the expenses listed may be claimed by the Consultant, all other cost to the

Consultant associated with Providing the Services must be included within the activity schedule prices or

staff rates.

Rate adjustment for inflation of expenses is explained in the PSC3 Guidance Notes.

Staff rates

When a compensation event occurs changes to the affected Activity Schedule item or new priced items in

the Activity Schedule are assessed as the actual Time Charge for work already done and the forecast Time

Charge for work not yet done. (See clause 63.1 and 63.14 in Option A)

The Time Charge is the sum of the products of each of the staff rates multiplied by the total staff time

appropriate to that rate properly spent on work in this contract. (Clause 11.2(13))

Tendering consultants are advised to consult the NEC3 Professional Services Contract Guidance Notes and

Flow Charts before entering staff rates into Contract Data, or in C2.2 below.

This is because staff rates can be established in one of three ways:

• rates for named staff,
• rates for categories of staff or
• rates related to salaries paid to staff.

Rate adjustment for inflation, if necessary, can be based either on actual salary adjustments or by using

Option X1: Price adjustment for inflation. See pages 13 and 14 in the PSC3 Guidance Notes.

Part c2: pricing data c2.1 PSC3/A pricing assumptions

ESKOM HOLDINGS SOC Ltd CONTRACT NUMBER

Vulcan sinkhole investigation for north east grid for a period of 8 months

C2.2 the activity schedule

Kindly see attached BOQ for Sinkhole Assessment

Part c3: scope of work 1 c3 psc3 cover page

Part 3: scope of work

Document Title No of

reference pages

This cover

C3.1 Employer’s Scope

C3.2 Consultant’s Scope

Total number of pages

DOCUMENT C2.1 PAGE ii PRICING

Data

NTCSA SOC Ltd CONTRACT NUMBER

Project and contract title

C3.1: Employer’s scope

Contents

When the document is complete, insert a ‘Table of Contents’. To do this go to: Insert, → Reference, → Index

and tables → Table of Contents. Three levels and the title (but not the subtitle) may be shown if the formats

used in this template are retained.

Otherwise insert list of contents manually.

CONTRACT - iii - PSC3 COVER PAGES

NTCSA SOC Ltd CONTRACT NUMBER

Project and contract title

Description of the services

Executive overview

The Vulcan Transmission Substation is located in Emalahleni (Witbank CLN), an area extensively impacted

by historic underground and surface coal mining activities. Decades of bord-and-pillar mining have resulted in

significant underground voids, many of which are unstable or have partially collapsed. In addition, spontaneous

combustion of remnant coal pillars has caused persistent underground fires, leading to thermal fracturing of

the overburden, oxidation of support pillars, and progressive subsidence. These conditions have materially

contributed to the formation and ongoing enlargement of sinkholes in the broader Emalahleni region. The

historical undermining map has been received from the current mine owner and indicates the Arnot Kendal

400kV tower 227 is currently placed on a mine pillar (List of drawings) and indicated the sinkholes North

West of Vulcan substation.

The area under consideration presents a material risk to public safety and to critical national electricity

infrastructure. The Vulcan Transmission Substation, together with the associated 400 kV transmission

infrastructure, is located directly above coal seams affected by historic mining. Progressive subsidence and

underground combustion threaten the structural integrity of the substation and transmission assets. If not

addressed, these risks could result in prolonged operational disruptions, loss of supply to key industrial

customers, significant financial exposure, infrastructure failure, and potential serious injury or loss of life.

No details are available on the depth and details of the historically undermined area therefore the extent of the

risk to the powerline structures cannot be fully established. Numerous factors can contribute to spontaneous

combustion, such as a substantial electrical short beneath the surface or soil composition containing easily

combustible materials. Hence the Employer intends to investigate as subsidence at Vulcan substation and

adjacent areas caused by spontaneous combustion, to define the severity of the risk to NTCSA infrastructure.

Interpretation and terminology:

Construction work - The erection, maintenance, alteration, renovation, repair, demolition or dismantling of or

addition to a building or any similar structure. The installation, erection, dismantling or maintenance of a fixed

plant where such work includes the risk of a person falling. The construction, maintenance, demolition or

dismantling of any bridge, dam, canal, road, railway, runway, sewer or water reticulation system or any similar

civil engineering structure

Contractor- An employer who performs scope of work and includes principal contractors

Professionally registered Geologist- Professional Geologist is a licensed geoscientist qualified to provide

geological services that impact public safety, environmental health, and engineering project registered with

SACNASP (South African Council for Natural Scientist Professions).

The following abbreviations are used in this Scope:

Abbreviation Meaning given to the abbreviation

CFT Cross Functional Team

NTCSA National Transmission Company South Africa

NEG North East Grid

OHS Act Occupational Health and Safety Act

ORHVS Operating Regulations for High Voltage Systems

PPE Personal Protective Equipment

SACNASP South African Council for Natural Scientist Professions

SANAS South African National Accreditation System

SANS South African National Standards

SHEQ Safety Health Environment and Quality

CONTRACT - iv - PSC3 COVER PAGES

NTCSA SOC Ltd CONTRACT NUMBER

Project and contract title

SOW Scope of Work

SWP Safe Work Procedure

Specification and description of the services

The Employer requires a professionally Geologists (referred to hereafter as the Contractor) to:

• conduct comprehensive methodology for conducting subsidence investigations at and around the

Vulcan Substation and adjacent areas to determine the level of risk of failure NTCSA infrastructure

(i.e. Vulcan substation and Arnot Kendal tower 227), refer to figures 1 and 2(List of drawings)

• capture the extent of the phenomenon and its impacts to other critical infrastructure in the area as

defined in bullet above.

• Compile and issue detailed report of the finding and proposed solutions to mitigate the potential

risk/s

Stage 1 Preparation

1.1 Site walkover

The Contractor (and all necessary team members/sub-contractors):

• conduct a site walkover of the impacted area/s,

• identifies areas of notable ground features and contributing environmental factors,

• identifies areas of notable adjacent and bisecting infrastructure,

• makes notes and observations to ensure that the works are not encumbered by the overall site

conditions,

ensures works take into consideration the necessary safety considerations for the stability of the area.

1.2 Safe working procedure

The Contractor produces a Safe Work Procedure (SWP) prior to commencement of any works on site. The

SWP outlines the tasks to be conducted during fieldworks and elaborates on how the tasks will be conducted

safely. The SWP is reviewed and accepted by the Employer prior to commencement of site works..

Stage 2 Concept

2.1 Geotechnical investigation and methane gas studies

The scope of the investigation will depend upon the size of the proposed investigation area (local or

regional). For illustration purposes, we used the polygon highlighted in red in Figure 2 of the approximately

17ha Vulcan Substation area of interest (AOI) near Witbank in Mpumalanga Province.

2.1.1 Subsurface assessment by non-invasive methods

The non-invasive methods include airborne monitoring (Thermal Imagery) and ground geophysics:

a) Thermal Imaging with a drone: Conduct a thorough thermal scanning survey encompassing the

complete specified perimeter and internal infrastructure of the substation. The supplier is expected to identify

and document all thermal anomalies or hotspot, providing detailed reports including location, severity, and

potential implications.

b) 2D Electrical Resistivity Tomography (ERT): Utilized to identify electrical anomalies in the soil that

could be potential sources of combustion. Resistivity anomalies are contingent on the soil composition, with

dry materials likely exhibiting high resistivity anomalies compared to the host rock. An example of a singleframe thermal image is shown below in Figure 3.

CONTRACT - v - PSC3 COVER PAGES

NTCSA SOC Ltd CONTRACT NUMBER

Project and contract title

c) Microgravity Surveys: Applied to map density variations in subsurface formations. Areas with

combustible materials are anticipated to display low-density anomalies in contrast to the host rock. An

example of a single-frame thermal image is shown below in Figure 4.

Figure 3. Example of an electrical resistivity section displaying the sub-surface geology along a

traverse line to a maximum depth of 80 m

CONTRACT - vi - PSC3 COVER PAGES

NTCSA SOC Ltd CONTRACT NUMBER

Project and contract title

Figure 4. Example of a gravity residual Bouguer anomaly map showing inferred features.

d) Multichannel Analysis of Surface Waves (MASW): This geophysical method maps velocity variations in

surface wave propagation, reflecting density distribution within the host rock mass. Areas with combustible

materials may exhibit reduced surface wave velocity anomalies due to density changes. An example of a single

frame thermal image is shown below in Figure 5

Figure 5. Example of a derived 3D geological model map showing inferred features..

CONTRACT - vii - PSC3 COVER PAGES

NTCSA SOC Ltd CONTRACT NUMBER

Project and contract title

2.1.2 Methane Gas Studies

Provision of detailed methane gas monitoring and assessment to evaluate the presence,

concentration, and migration of methane within and surrounding the affected mining areas, including:

a) Compilation and review of historical methane gas data from previous investigations, including borehole

gas readings, mine ventilation records, and any prior gas monitoring studies conducted within the affected

mining blocks.

b) Validation and reconciliation of historical datasets with current site conditions to identify trends, data

gaps, and potential changes in methane migration behaviour over time.

• Identification of gas accumulation zones and potential high-risk areas where methane concentrations

may approach explosive limits

c) Baseline and continuous monitoring of methane concentrations in subsurface voids, boreholes, and at

surface interfaces; for methane gas release (ventilation)

• Assessment of methane migration pathways, including fractures, faults, and old mine workings that

may facilitate gas movement toward surface or infrastructure.

d) Evaluation of explosion and asphyxiation risks in relation to Eskom NTCSA infrastructure and

surrounding communities.

• e) Recommendations for mitigation measures, including controlled venting, gas drainage

systems, and monitoring protocols to ensure ongoing safety and regulatory compliance.

• Land subsidence and methane emission risk Assessment Report
• Potential Rehabilitation Strategies

f) Rehabilitation Strategy

• Guidance on the feasibility of open-cast mining as a potential rehabilitation intervention, including:
• Technical and economic feasibility considerations.
• Environmental authorisation and regulatory requirements.
• Highwall stability and geotechnical modelling; and
• Clarification regarding handling, extraction, and potential commercial treatment of coal exposed

during rehabilitation

2.2 Geotechnical Investigations

The primary objective of a preliminary investigation is to assess the soil and rock profile for the stratigraphical

study purposes

The following specific items should be dealt with in the investigation:

• Site geology and stratigraphy.
• Soil and rock classification.
• Identification of geotechnical problems.

Seismic assessment and classification of the site

2.2.1 Investigation Methodology

2.2.1.1 Desk Study

Review of existing regional, site and surface information. Sources of information should include:

• Topographical maps, geological maps, aerial photo interpretation - to be able to identify topographical,

drainage channels and erosion features of the site.

• Geological data, such as lithology of nearby rock outcrops landforms, erosion patterns that surrounds

the proposed site.

• Existing geotechnical information available of the area in the surrounds of the site.
• Data on the performance of existing engineered structures in the area.
• Data on the bodies of groundwater levels in the surrounds of the proposed site.
• Data on seismic aspects, such as ground motion, liquefaction potential.

2.2.1.2 Scanning for underground services

CONTRACT - viii - PSC3 COVER PAGES

Qualifications:

Experience:

2 Name:

Qualifications:

Experience:

Only if CV's (and further key persons data including

required CVs) are appended to Tender Schedule

entitled .

11.2(3) The completion date for the whole of the

services is

11.2(10) The following matters will be included in

the Risk Register

2 Available from Engineering Contract Strategies Tel 011 803 3008 Fax 011 803 3009 or www.ecs.co.za

PART C2: PRICING DATA PAGE xviii C2 PSC3/A COVER

Period of 8 months

3 (Phase 2) Geotechnical 8 weeks after

Investigations phase 1

completion

4 (Phase 3) Drilling of 8 weeks after

boreholes phase 2

completion

Laboratory Testing 4 weeks

Contractors report 2 weeks

31.1 The Consultant is to submit a first

programme for acceptance within Two weeks of the Contract Date.

32.2 The Consultant submits revised

programmes at intervals no longer than As and when required

occupational hygiene inspection body, i.e. a SANAS accredited and Department of

(Reg No. 2021/539129/30)

and [Insert at award stage]

(Reg No. )

for INVESTIGATE POTENTIAL SUBSURFACE INSTABILITY IN THE VICINITY OF

The ntcsa vulcan substation for a period of 8 months

Contents: No of

pages

Part C1 Agreements & Contract Data [●]

Part C2 Pricing Data [●]

Part C3 Scope of Work: The Scope [●]

CONTRACT No. [Insert at award stage]

DOCUMENT C2.1 PAGE i PRICING

pages

C1.1 Form of Offer & Acceptance [●]

[to be inserted from Returnable Documents at award stage]

C1.2a Contract Data provided by the Employer [●]

C1.2b Contract Data provided by the Consultant [●]

[to be inserted from Returnable Documents at award stage]

C1.3 Securities proforma [●]

PART C2: PRICING DATA PAGE ii C2 PSC3/A COVER

signature of Date

witness

PART C2: PRICING DATA PAGE iii C2 PSC3/A COVER

Part C1 Agreements and Contract Data, (which includes this Form of Offer and Acceptance)

Part C2 Pricing Data

Part C3 Scope of Work: The Scope

and drawings and documents (or parts thereof), which may be incorporated by reference into the above listed

PART C2: PRICING DATA PAGE v C2 PSC3/A COVER

Tel No. [●]

Fax No. [●]

1 Available from Engineering Contract Strategies Tel 011 803 3008 Fax 011 803 3009 and www.ecs.co.za

PART C2: PRICING DATA PAGE vi C2 PSC3/A COVER

caption “Money Rates” in The Wall Street Journal

for the applicable currency or if no rate is quoted

for the currency in question then the rate for

it shall not be necessary to prove

PART C2: PRICING DATA PAGE viii C2 PSC3/A COVER

Arbitrators (Southern Africa) or its successor

body.

The place where arbitration is to be held is [●] South Africa

PART C2: PRICING DATA PAGE ix C2 PSC3/A COVER

appropriate action to prevent or remedy the situation, without limiting any other rights or

remedies the Employer has. It is not required that the Committing Party had to have been

PART C2: PRICING DATA PAGE xiii C2 PSC3/A COVER

PART C2: PRICING DATA PAGE xv C2 PSC3/A COVER

Period of 8 months

11.2(13) The staff rates are: name/designation rate

11.2(14) The activity schedule is in

11.2(18) The tendered total of the Prices is R (in figures)

(in words), excluding VAT

PART C2: PRICING DATA PAGE xix C2 PSC3/A COVER

Period of 8 months

Part 2: pricing data

PSC3 Option A

reference pages

C2.1 Pricing assumptions: Option A [●]

C2.2 The activity schedule [●]

PART C2: PRICING DATA PAGE xx C2 PSC3/A COVER

Period of 8 months

C2.1 Pricing assumptions: Option A

The Activity Schedule is only a pricing document. Clause 53.1 in Option A states: “Information in the Activity

Schedule is not Scope”. Specifications and descriptions of the service or any constraints on how it is to be

done are included in the Scope and per Clause 21.1, “The Consultant Provides the Services in accordance

with the Scope” and therefore not in accordance with the Activity Schedule.

• Has taken account of the guidance given in the PSC3 Guidance Notes;
• Understands the function of the Activity Schedule and how work is priced and paid for;
• Is aware of the need to link the Activity Schedule to activities shown on each programme which he

submits for acceptance by the Employer;

• Has listed and priced activities in the activity schedule which are inclusive of everything necessary

and incidental to Providing the Service in accordance with the Scope, as it was at the Contract Date,

as well as correct Defects except correcting a Defect for which the Consultant is not liable;

• Has priced work he decides not to show as a separate activity within the Prices of other listed

activities in order to fulfil the obligation to complete the service for the tendered total of the Prices.

• Understands there is no adjustment to the lump sum Activity Schedule price if the amount, or

quantity, of work within that activity later turns out to be different to that which the Consultant

Part c2: pricing data c2.1 PSC3/A pricing assumptions

staff rates.

Rate adjustment for inflation of expenses is explained in the PSC3 Guidance Notes.

appropriate to that rate properly spent on work in this contract. (Clause 11.2(13))

Tendering consultants are advised to consult the NEC3 Professional Services Contract Guidance Notes and

Flow Charts before entering staff rates into Contract Data, or in C2.2 below.

• rates for named staff,
• rates for categories of staff or
• rates related to salaries paid to staff.

Option X1: Price adjustment for inflation. See pages 13 and 14 in the PSC3 Guidance Notes.

Part c2: pricing data c2.1 PSC3/A pricing assumptions

DOCUMENT C2.1 PAGE ii PRICING

Pricing: NEC3 PSC3 Option A — lump sum priced contract with activity schedule. The tenderer must complete the activity schedule (C2.2) with lump sum prices for each activity, and provide staff rates in Contract Data. The offered total of the Prices must be stated exclusive of VAT, with VAT at 15% added, and the total inclusive of VAT. Payment: assessments between the 25th day of each successive month; payments made within 4 weeks. Interest on late payments at the prime rate of Standard Bank (for ZAR) or LIBOR (for other currencies). Expenses are not included in activity schedule items and are assessed separately unless a Z-clause requires inclusion. Delay damages: 2% of contract value per day, capped at 10% of contract cost, for each of the five activities (geotechnical investigation and methane gas studies, geotechnical investigations report, drilling of boreholes, laboratory test and report, contractor's report). The Consultant's total liability to the Employer is limited to the total of the Prices. Liability for indirect or consequential loss is limited to R0.00. Liability for defects found after the defects date is limited to the total of the Prices. End of liability date is 5 years after Completion.

The tenderer must be a professionally registered geologist with SACNASP (South African Council for Natural Scientist Professions). The contract requires compliance with the NEC3 Professional Services Contract (April 2013) and its Z-clauses. B-BBEE: any change in B-BBEE status must be notified to the Employer within 7 days, with an updated verification certificate within 30 days; a decrease in status may lead to renegotiation or termination. Insurance: the Consultant must provide professional indemnity insurance (as deemed necessary), public liability, and employer's liability as per Insurance Table A; the Employer provides assets all risk, contract works, environmental liability, general and public liability, transportation, motor fleet, terrorism, cyber liability, and nuclear-related insurances as per Insurance Table B. Asbestos: the Consultant must comply with the Employer's Asbestos Standard 32-303 and the Asbestos Regulations under the OHS Act; personnel may stop work if asbestos is identified. Ethics: no coercive, collusive, corrupt, fraudulent, or obstructive actions are permitted; breach may lead to termination. Joint ventures: if the Consultant is a JV, all parties are jointly and severally liable; the key person with authority to bind must be notified within 2 weeks of the Contract Date. Cession, delegation, or assignment requires the Employer's written consent. Confidentiality: the Consultant must not disclose information arising from the contract; images of the Employer's project works require prior written consent.

signature of Date

witness

Note: If a tenderer wishes to submit alternative tenders, use another copy of this Form of Offer and Acceptance.

PART C2: PRICING DATA PAGE iv C2 PSC3/A COVER

227), refer to SOW (List of drawings)

• Capture the extent of the phenomenon and

its impacts to other critical infrastructure

in the area as defined in bullet above.

• Compile and issue detailed report of the

finding and proposed solutions to mitigate

the potential risk/s

11.2(10) The following matters will be included in the 1. Site access issues

Risk Register 2. Rainy weather conditions

11.2(11) The Scope is in Part 3: Scope of Work

12.2 The law of the contract is the law of the Republic of South Africa

13.1 The language of this contract is English

13.3 The period for reply is 5 working days

13.6 The period for retention is Three months (3) following Completion or earlier

termination.

2 The Parties’ main responsibilities

25.2 The Employer provides access to the access to access date

following persons, places and things

1 Vulcan Site (Kendal) After contract

award

2 Eskom Park (Induction) After safety file

approval

31.2 The starting date is. TBC

11.2(3) The completion date for the whole of the

services is. TBC

11.2(6) The key dates and the conditions to be met Condition to be met key date

are:

1. Safety file Approval 4 weeks after

contract award

2 (Phase 1) Geotechnical 2 weeks after

investigation and methane safety file

gas studies approval

PART C2: PRICING DATA PAGE vii C2 PSC3/A COVER

clauses

X7 Delay damages

X7.1 Delay damages for late Completion of the 2% of contract value capped at 10% of the

whole of the services are contract cost for each activity listed below.

section Activity/Services amount per day

1 Geotechnical 2% of contract

investigation and value capped at

methane gas studies 10%

(invasive and non-

invasive methods)

report submission as

per accepted

program

2 Geotechnical 2% of contract

submission as per 10%

accepted program

3 Drilling of boreholes 2% of contract

report submission as value capped at

per accepted 10%

program

4 Laboratory test and 2% of contract

report submitted as value capped at

per the accepted 10%

program

5 Contractors report as 2% of contract

per accepted value capped at

program 10%

X9 Transfer of rights There is no reference to Contract Data in this

images vests exclusively in the Employer.

Z5 Waiver and estoppel: Add to core clause 12.3:

Z5.1 Any extension, concession, waiver or relaxation of any action stated in this contract by the

the regulations published in GNR February 2002, under the Occupational Health

and Safety Act, 1993 (Act ) (“Asbestos Regulations”). The OEL for asbestos is 0.2

regulated asbestos fibres per millilitre of air as a 4-hour TWA, averaged over any continuous

period of four hours, and the short term exposure limit of 0.6 regulated asbestos fibres per

millilitre of air as a 10-minute TWA, averaged over any 10 minutes, measured in accordance

with HSG248 and monitored according to HSG173 and OESSM.

Z14.2 Upon written request by the Consultant, the Employer certifies that these conditions prevail.

and related control measures at the Consultant’s expense. For the purposes of compliance

the results generated from Parallel Measurements are evaluated only against South African

statutory limits as detailed in clause Z14.1. Control measures conform to the requirements

stipulated in the AAIA-approved asbestos work plan.

Z14.3 The Employer manages asbestos and ACM according to the Standard.

Z14.4 In the event that any asbestos is identified while Providing the Services, a risk assessment is

conducted and if so required, with reference to possible exposure to an airborne concentration

of above the AL for asbestos, immediate control measures are implemented and relevant air

monitoring conducted in order to declare the area safe.

PART C2: PRICING DATA PAGE xvi C2 PSC3/A COVER

emergency asbestos work plan, if applicable.

Z14.6 The Consultant continues to Provide the Services, without additional control measures

presented, on presentation of Safe Levels. The contractually agreed dates to Provide the

risk to the powerline structures cannot be fully established. Numerous factors can contribute to spontaneous

combustion, such as a substantial electrical short beneath the surface or soil composition containing easily

combustible materials. Hence the Employer intends to investigate as subsidence at Vulcan substation and

adjacent areas caused by spontaneous combustion, to define the severity of the risk to NTCSA infrastructure.

geological services that impact public safety, environmental health, and engineering project registered with

SACNASP (South African Council for Natural Scientist Professions).

(i.e. Vulcan substation and Arnot Kendal tower 227), refer to figures 1 and 2(List of drawings)

• capture the extent of the phenomenon and its impacts to other critical infrastructure in the area as

defined in bullet above.

• Compile and issue detailed report of the finding and proposed solutions to mitigate the potential

risk/s

Stage 1 Preparation

1.1 Site walkover

The Contractor (and all necessary team members/sub-contractors):

• conduct a site walkover of the impacted area/s,

• identifies areas of notable ground features and contributing environmental factors,

• identifies areas of notable adjacent and bisecting infrastructure,

• makes notes and observations to ensure that the works are not encumbered by the overall site

conditions,

ensures works take into consideration the necessary safety considerations for the stability of the area.

1.2 Safe working procedure

The Contractor produces a Safe Work Procedure (SWP) prior to commencement of any works on site. The

dates are extended by the notification periods required by regulations 3 and 21 of the

Asbestos Regulations, 2001.

Z14.7 Any removal and disposal of asbestos, asbestos containing materials and waste, is done by a

registered asbestos contractor, instructed by the Employer at the Employer’s expense, and

conducted in line with South African legislation.

PART C2: PRICING DATA PAGE xvii C2 PSC3/A COVER

concentration, and migration of methane within and surrounding the affected mining areas, including:

a) Compilation and review of historical methane gas data from previous investigations, including borehole

gas readings, mine ventilation records, and any prior gas monitoring studies conducted within the affected

mining blocks.

b) Validation and reconciliation of historical datasets with current site conditions to identify trends, data

gaps, and potential changes in methane migration behaviour over time.

• Identification of gas accumulation zones and potential high-risk areas where methane concentrations

may approach explosive limits

c) Baseline and continuous monitoring of methane concentrations in subsurface voids, boreholes, and at

surface interfaces; for methane gas release (ventilation)

• Assessment of methane migration pathways, including fractures, faults, and old mine workings that

may facilitate gas movement toward surface or infrastructure.

d) Evaluation of explosion and asphyxiation risks in relation to Eskom NTCSA infrastructure and

surrounding communities.

• e) Recommendations for mitigation measures, including controlled venting, gas drainage

systems, and monitoring protocols to ensure ongoing safety and regulatory compliance.

• Land subsidence and methane emission risk Assessment Report
• Potential Rehabilitation Strategies

f) Rehabilitation Strategy

• Guidance on the feasibility of open-cast mining as a potential rehabilitation intervention, including:
• Technical and economic feasibility considerations.
• Environmental authorisation and regulatory requirements.
• Highwall stability and geotechnical modelling; and
• Clarification regarding handling, extraction, and potential commercial treatment of coal exposed

during rehabilitation

2.2 Geotechnical Investigations

Liability of the Consultant for claims made Whatever the Consultant From the starting

against him arising out of his failure to deems necessary in date until the earlier

use the skill and care normally used by respect of each claim, of Completion and

professionals providing services similar to without limit to the number the date of the

the services of claims. termination

certificate.

Liability for death of or bodily injury to a Loss of or damage to From the starting

person (not an employee of the property: date until the earlier

Consultant) or loss of or damage to The replacement cost of Completion and

property resulting from an action or failure where not covered by the the date of the

to take action by the Consultant Employer’s insurance termination

certificate.

The Employer’s policy

deductible, as at Contract

Date, where covered by

the Employer’s insurance

Bodily injury to or death

of a person:

The amount required by

the applicable law.

Liability for death of or bodily injury to The amount required by From the starting

employees of the Consultant arising out the applicable law date until the earlier

of and in the course of their employment of Completion and

in connection with this contract the date of the

certificate.

81.3 The Employer provides the insurances stated in the Insurance Table B.

PART C2: PRICING DATA PAGE xiv C2 PSC3/A COVER

NTCSA SOC Ltd CONTRACT NO.

Investigate potential subsurface instability in the vicinity of the ntcsa vulcan substation for a

Period of 8 months

Insurance table b

Insurance against or name Minimum amount of cover or minimum limit of indemnity

of policy

Assets All Risk Per the insurance policy document

Contract Works insurance Per the insurance policy document

Environmental Liability Per the insurance policy document

General and Public Liability Per the insurance policy document

Transportation (Marine) Per the insurance policy document

Motor Fleet and Mobile Plant Per the insurance policy document

Terrorism Per the insurance policy document

Cyber Liability Per the insurance policy document

Nuclear Material Damage and Per the insurance policy document

Business Interruption

Nuclear Material Damage Per the insurance policy document

Terrorism

Z13 Nuclear Liability

Z13.1 The Employer is the operator of the Koeberg Nuclear Power Station (KNPS), a nuclear

installation, as designated by the National Nuclear Regulator of the Republic of South Africa,

and is the holder of a nuclear licence in respect of the KNPS.

Z13.2 The Employer is solely responsible for and indemnifies the Consultant or any other person

against any and all liabilities which the Consultant or any person may incur arising out of or

resulting from nuclear damage, as defined in Act , save to the extent that any

liabilities are incurred due to the unlawful intent of the Consultant or any other person or the

presence of the Consultant or that person or any property of the Consultant or such person at

or in the KNPS or on the KNPS site, without the permission of the Employer or of a person

acting on behalf of the Employer.

Z13.3 Subject to clause Z13.4 below, the Employer waives all rights of recourse, arising from the

aforesaid, save to the extent that any claims arise or liability is incurred due or attributable to

the unlawful intent of the Consultant or any other person, or the presence of the Consultant or

that person or any property of the Consultant or such person at or in the KNPS or on the

KNPS site, without the permission of the Employer or of a person acting on behalf of the

Employer.

Z13.4 The Employer does not waive its rights provided for in section 30 (7) of Act , or any

replacement section dealing with the same subject matter.

Z13.5 The protection afforded by the provisions hereof shall be in effect until the KNPS is

decommissioned.

Z14 Asbestos

For the purposes of this Z-clause, the following definitions apply:

AAIA means approved asbestos inspection authority.

PART C2: PRICING DATA PAGE xv C2 PSC3/A COVER

NTCSA SOC Ltd CONTRACT NO.

Investigate potential subsurface instability in the vicinity of the ntcsa vulcan substation for a

Period of 8 months

ACM means asbestos containing materials.

AL means action level, i.e. a level of 50% of the OEL, i.e. 0.1 regulated asbestos

fibres per ml of air measured over a 4 hour period. The value at which proactive

actions is required in order to control asbestos exposure to prevent exceeding the

Oel.

Ambient Air means breathable air in area of work with specific reference to breathing zone,

which is defined to be a virtual area within a radius of approximately 30cm from the

nose inlet.

Compliance means compliance sampling used to assess whether or not the personal exposure

Monitoring of workers to regulated asbestos fibres is in compliance with the Standard’s

requirements for safe processing, handling, storing, disposal and phase-out of

asbestos and asbestos containing material, equipment and articles.

OEL means occupational exposure limit.

Parallel means measurements performed in parallel, yet separately, to existing

Measurements measurements to verify validity of results.

Safe Levels means airborne asbestos exposure levels conforming to the Standard’s

requirements for safe processing, handling, storing, disposal and phase-out of

asbestos and asbestos containing material, equipment and articles.

Standard means the Employer’s Asbestos Standard 32-303: Requirements for Safe

Processing, Handling, Storing, Disposal and Phase-out of Asbestos and Asbestos

Containing Material, Equipment and Articles.

SANAS means the South African National Accreditation System.

TWA means the average exposure, within a given workplace, to airborne asbestos

fibres, normalised to the baseline of a 4 hour continuous period, also applicable to

short term exposures, i.e. 10-minute TWA.

Z14.1 The Employer ensures that the Ambient Air in the area where the Consultant will Provide the

Services conforms to the acceptable prescribed South African standard for asbestos, as per

the regulations published in GNR February 2002, under the Occupational Health

and Safety Act, 1993 (Act ) (“Asbestos Regulations”). The OEL for asbestos is 0.2

regulated asbestos fibres per millilitre of air as a 4-hour TWA, averaged over any continuous

period of four hours, and the short term exposure limit of 0.6 regulated asbestos fibres per

millilitre of air as a 10-minute TWA, averaged over any 10 minutes, measured in accordance

with HSG248 and monitored according to HSG173 and OESSM.

Z14.2 Upon written request by the Consultant, the Employer certifies that these conditions prevail.

All measurements and reporting are effected by an independent, competent, and certified

occupational hygiene inspection body, i.e. a SANAS accredited and Department of

Employment and Labour approved AAIA. The Consultant may perform Parallel Measurements

and related control measures at the Consultant’s expense. For the purposes of compliance

the results generated from Parallel Measurements are evaluated only against South African

statutory limits as detailed in clause Z14.1. Control measures conform to the requirements

stipulated in the AAIA-approved asbestos work plan.

Z14.3 The Employer manages asbestos and ACM according to the Standard.

Z14.4 In the event that any asbestos is identified while Providing the Services, a risk assessment is

conducted and if so required, with reference to possible exposure to an airborne concentration

of above the AL for asbestos, immediate control measures are implemented and relevant air

monitoring conducted in order to declare the area safe.

PART C2: PRICING DATA PAGE xvi C2 PSC3/A COVER

NTCSA SOC Ltd CONTRACT NO.

Investigate potential subsurface instability in the vicinity of the ntcsa vulcan substation for a

Period of 8 months

Z14.5 The Consultant’s personnel are entitled to stop working and leave the contaminated area

forthwith until such time that the area of concern is declared safe by either Compliance

Monitoring or an AAIA approved control measure intervention, for example, per the

emergency asbestos work plan, if applicable.

Z14.6 The Consultant continues to Provide the Services, without additional control measures

presented, on presentation of Safe Levels. The contractually agreed dates to Provide the

Services, including the Completion Date, are adjusted accordingly. The contractually agreed

dates are extended by the notification periods required by regulations 3 and 21 of the

Asbestos Regulations, 2001.

Z14.7 Any removal and disposal of asbestos, asbestos containing materials and waste, is done by a

registered asbestos contractor, instructed by the Employer at the Employer’s expense, and

conducted in line with South African legislation.

PART C2: PRICING DATA PAGE xvii C2 PSC3/A COVER

NTCSA SOC Ltd CONTRACT NO.

Investigate potential subsurface instability in the vicinity of the ntcsa vulcan substation for a

Period of 8 months

C1.2 Contract Data

Part two - Data provided by the Consultant

[Instructions to the tendering consultant: (delete these notes in the final draft of a contract)

1. The tendering consultant is advised to read both the NEC3 Professional Services Contract, April

2013 and the relevant parts of its Guidance Notes (PSC3-GN)2 in order to understand the

implications of this Data which the tenderer is required to complete. An example of the completed

Data is provided on pages 158 & 159 of the PSC3 April 2013 Guidance Notes.

2. The number of the clause in the PSC3 which requires the data is shown in the left hand column for

each statement however other clauses may also use the same data.

3. Whenever a cell is shaded in the left hand column it denotes this data is optional in PSC3 and would

be required in relation to the option selected. The Employer should already have made the selection

and deleted the rows not required.

Completion of the data in full, according to Options chosen, is essential to create a complete contract.

Clause Statement Data

10.1 The Consultant is (Name):

Address

Tel No.

Fax No.

22.1 The key people are:

1 Name:

Job:

Responsibilities:

of Deviations (if any), contact the Employer’s agent (whose details are given in the Contract Data) to arrange

the delivery of any securities, bonds, guarantees, proof of insurance and any other documentation to be

provided in terms of the conditions of contract identified in the Contract Data at, or just after, the date this

agreement comes into effect. Failure to fulfil any of these obligations in accordance with those terms shall

constitute a repudiation of this agreement.

clauses and the clauses for main Option

A: Priced contract with activity schedule

dispute resolution Option W1: Dispute resolution procedure

and secondary Options

X7: Delay damages

X9: Transfer of rights

X10 Employer’s Agent

X18: Limitation of liability

Z: Additional conditions of contract

of the NEC3 Professional Services Contract

(April 2013)1

10.1 The Employer is (Name): NTCSA SOC Ltd (reg no: 2021/539129/30), a state

owned company incorporated in terms of the

company laws of the Republic of South Africa

in The Wall Street Journal then the rate as quoted

by the Reuters Monitor Money Rates Service (or

such service as may replace the Reuters Monitor

Money Rates Service) on the due date for the

payment in question, adjusted mutatis mutandis

every 6 months thereafter and as certified, in the

event of any dispute, by any manager employed in

the foreign exchange department of The Standard

section of the core clauses and terms in italics

used in this section are identified elsewhere in

this Contract Data.

82.1 The Consultant’s total liability to the The total of the Prices

dispute to him. (see www.ice-sa.org.za). If the

Period of 8 months

The authority of the Employer’s Agent is Acts for the Employer for all purposes of this

contract

X18 Limitation of liability

X18.1 The Consultant’s liability to the Employer for R0.00 (Zero Rand)

indirect or consequential loss is limited to:

X18.2 The Consultant’s liability to the Employer for The total of the Prices

defects date is limited to:

X18.3 The end of liability date is five years after Completion of the whole of the

services/task order.

Period of 8 months

Z3.4 Failure by the Consultant to notify the Employer of a change in its B-BBEE status may constitute

a reason for termination. If the Employer terminates in terms of this clause, the procedures on

termination are those stated in core clause 91. The payment on termination includes a deduction

of the forecast of the additional cost to the Employer of completing the whole of the services in

addition to the amounts due in terms of core clause 92.1.

Z4 Confidentiality

Z4.1 The Consultant does not disclose or make any information arising from or in connection with this

contract available to Others. This undertaking does not, however, apply to information which at

the time of disclosure or thereafter, without default on the part of the Consultant, enters the public

domain or to information which was already in the possession of the Consultant at the time of

disclosure (evidenced by written records in existence at that time). Should the Consultant

disclose information to Others in terms of clause 23.1, the Consultant ensures that the provisions

of this clause are complied with by the recipient.

Z4.2 If the Consultant is uncertain about whether any such information is confidential, it is to be

regarded as such until notified otherwise by the Employer.

Z4.3 In the event that the Consultant is, at any time, required by law to disclose any such information

which is required to be kept confidential, the Consultant, to the extent permitted by law prior to

disclosure, notifies the Employer so that an appropriate protection order and/or any other action

can be taken if possible, prior to any disclosure. In the event that such protective order is not, or

cannot, be obtained, then the Consultant may disclose that portion of the information which it is

required to be disclosed by law and uses reasonable efforts to obtain assurances that

confidential treatment will be afforded to the information so disclosed.

Z4.4 The taking of images (whether photographs, video footage or otherwise) of the Employer’s

project works or any portion thereof, in the course of Providing the Services and after

estoppel unless the Parties agree otherwise and confirm such agreement in writing.

Z6 Provision of a Tax Invoice. Add to core clause 51

Z6.1 The Consultant (if registered in South Africa in terms of the companies Act) is required to comply

with the requirements of the Value Added Tax Act, no (as amended) and to include

the Employer’s VAT number 4710303126 on each invoice he submits for payment.

Z7 Notifying compensation events

Z7.1 Delete from the last sentence in core clause 61.3, “unless the Employer should have notified the

event to the Consultant but did not”.

Z8 Employer’s limitation of liability

Z8.1 The Employer’s liability to the Consultant for the Consultant’s indirect or consequential loss is

limited to R0.00 (zero Rand)

PART C2: PRICING DATA PAGE xii C2 PSC3/A COVER

Period of 8 months

Termination: Add to core clause 90.1, at the second main bullet point, fourth sub-bullet

Z9

point, after the words "against it":

Z9.1 or had a business rescue order granted against it.

Z10 Delay damages: Addition to secondary Option X7 Delay damages (if applicable in this

contract)

Z10.1 If the Consultant’s payment of delay damages reaches the limits stated in this Contract Data for

Option X7 or Options X5 and X7 used together, the Employer may terminate the Consultant’s

obligation to Provide the Services.

Z10.2 If the Employer terminates in terms of this clause, the procedures on termination are those stated

in core clause 91. The payment on termination includes a deduction of the forecast of the

additional cost to the Employer of completing the whole of the services in addition to the amounts

due in terms of core clause 92.1.

Z11 Ethics

Period of 8 months

found guilty, in court or in any other similar process, of such Prohibited Action before the

Employer can terminate the Consultant’s obligation to Provide the Services for this reason.

Z11.3 If the Employer terminates the Consultant’s obligation to Provide the Services for this reason,

the amounts due on termination are those intended in core clauses 92.1 and 92.2.

Z11.4 A Committing Party co-operates fully with any investigation pursuant to alleged Prohibited

Z12 Insurance

Z12.1 Replace core clause 81 with the following:

81.1 When requested by a Party, the other Party provides certificates from his insurer or broker stating

that the insurances required by this contract are in force.

81.2 The Consultant provides the insurances stated in the Insurance Table A from the starting date

until the earlier of Completion and the date of the termination certificate.

whole of the

services or earlier

termination

against him arising out of his failure to deems necessary in date until the earlier

use the skill and care normally used by respect of each claim, of Completion and

professionals providing services similar to without limit to the number the date of the

the services of claims. termination

certificate.

person (not an employee of the property: date until the earlier

Consultant) or loss of or damage to The replacement cost of Completion and

property resulting from an action or failure where not covered by the the date of the

to take action by the Consultant Employer’s insurance termination

certificate.

The Employer’s policy

deductible, as at Contract

the Employer’s insurance

employees of the Consultant arising out the applicable law date until the earlier

of and in the course of their employment of Completion and

in connection with this contract the date of the

termination

certificate.

81.3 The Employer provides the insurances stated in the Insurance Table B.

PART C2: PRICING DATA PAGE xiv C2 PSC3/A COVER

Transportation (Marine) Per the insurance policy document

Z13 Nuclear Liability

Z13.1 The Employer is the operator of the Koeberg Nuclear Power Station (KNPS), a nuclear

installation, as designated by the National Nuclear Regulator of the Republic of South Africa,

and is the holder of a nuclear licence in respect of the KNPS.

Z13.2 The Employer is solely responsible for and indemnifies the Consultant or any other person

against any and all liabilities which the Consultant or any person may incur arising out of or

resulting from nuclear damage, as defined in Act , save to the extent that any

liabilities are incurred due to the unlawful intent of the Consultant or any other person or the

presence of the Consultant or that person or any property of the Consultant or such person at

or in the KNPS or on the KNPS site, without the permission of the Employer or of a person

acting on behalf of the Employer.

Z13.3 Subject to clause Z13.4 below, the Employer waives all rights of recourse, arising from the

aforesaid, save to the extent that any claims arise or liability is incurred due or attributable to

the unlawful intent of the Consultant or any other person, or the presence of the Consultant or

that person or any property of the Consultant or such person at or in the KNPS or on the

The provided document is a method statement template, not the full tender pack. It contains no submission instructions, closing address, format requirements, or disqualification rules. Bidders must obtain the complete RFQ/tender document from Eskom for submission details.

The provided document is a method statement template, not the full tender pack. It contains no evaluation criteria, scoring split, preference point system, minimum qualifying thresholds, or evaluation stages. Bidders must obtain the complete RFQ/tender document from Eskom for evaluation details.

The method statement template requires bidders to address the following when preparing their submission:

• Scope of work and objectives: outline the scope as detailed in the Works Information of the NEC document/RFQ and list 2-3 SMART objectives related to the scope outputs.
• Customer focus: describe how customer needs are identified and communicated to affected personnel.
• Competency and human resources: provide details of skills, competencies, and training required to deliver the scope of work.
• Infrastructure and PPE: list required PPE, tools, equipment, and infrastructure (including testing/measurements).
• Leadership and organisational context: state the organisation's mission, vision, values, and how these are communicated.
• Risk management: list all risks associated with delivering the scope of work and mitigation actions.
• Continuous improvement: explain how the organisation identifies gaps for improvement in business processes.
• Data and analysis: describe what data will be collected and analysed for decision-making.
• Relationship management: identify other stakeholders affected by the service, assess impact (low/medium/high), and describe actions to address them; indicate if outsourcing is involved and explain supplier selection, evaluation, and performance monitoring.

The provided document is a method statement template and does not state any compliance requirements such as CSD registration, tax clearance, B-BBEE level, CIDB grading, professional registrations, or local content. Bidders must obtain the complete RFQ/tender document from Eskom for compliance details.

The tender seeks professional services to investigate potential subsurface instability near the NTCSA Vulcan Substation. Bidders must demonstrate a documented quality management system aligned to ISO 9001:2015 and submit specific quality deliverables including a method statement, quality policy, quality objectives, organisational responsibility matrix, external provider control procedures, and a signed Form A.

Eskom representative: Siyabulela Nciweni. Date issued: 01-Jul-26. No SCM or technical contact details, email, phone, or submission address are provided in the document.

Returnable documents required:

• Quality method statement based on the scope of work, using the Eskom Method Statement Template (Ref 240-126469599).
• Quality policy approved by top management.
• Quality objectives approved by top management.
• Documented information for defined roles, responsibilities and authorities, including an organisation chart and responsibility matrix that covers the quality management function (ISO 9001:2015 Clause 5.3).
• Documented information for control of externally provided processes, products and services, including criteria for evaluation, selection, monitoring of performance, and re-evaluation of external providers (ISO 9001:2015 Clause 8.4).
• Form A completed and signed.
• Any additional requirements specified in the scope of work or specification.

All returnables must be submitted with the tender; omission of any listed item may lead to disqualification.

Mandatory returnables:

• Quality method statement (Eskom template Ref 240-126469599).
• Quality policy approved by top management.
• Quality objectives approved by top management.
• Organisation chart and responsibility matrix including quality management function (ISO 9001:2015 Clause 5.3).
• Documented procedure for control of externally provided processes, products and services (ISO 9001:2015 Clause 8.4).
• Form A completed and signed.
• Any additional requirements per the scope of work or specification.

Quality evaluation is scored across three sections:

• Section A (Quality Management System Requirements – ISO 9001): three indicators, each scored 1 point (method statement, quality policy, quality objectives). Section A total = 3 points.
• Section B (Evidence of QMS in Operation): two indicators, each scored 1 point (roles/responsibilities/authorities documentation; control of externally provided processes). Section B total = 2 points.
• Section E (User-defined Additional Requirements): two indicators, each scored 1 point (Form A completed and signed; additional scope-specific requirements). Section E total = 2 points.

Overall quality score = 7 points. No price/functionality split, preference point system, or minimum qualifying threshold is stated in the provided document.

Scope: Provide professional services to investigate potential subsurface instability in the vicinity of the NTCSA Vulcan Substation.

Quality deliverables required:

• Quality method statement aligned to the scope (using Eskom template Ref 240-126469599).
• Quality policy and quality objectives, both approved by top management.
• Organisation chart and responsibility matrix defining roles, responsibilities and authorities, including the quality management function (per ISO 9001:2015 Clause 5.3).
• Documented procedure for control of externally provided processes, products and services, covering evaluation, selection, performance monitoring and re-evaluation of external providers (per ISO 9001:2015 Clause 8.4).
• Completed and signed Form A.
• Any further requirements arising from the scope of work or specification.

Quality management system must comply with ISO 9001:2015 (certification not mandatory; documented QMS that meets the standard is acceptable).

Mandatory returnable documents as listed in submissionGuidelines.

No CSD registration, tax compliance, B-BBEE, CIDB, CIPC, professional registration, or local-content requirements are mentioned in the provided document.

Bidders must meet the following requirements:

• Documented QMS compliant with ISO 9001:2015 (certification not required).
• Submission of all quality deliverables listed in the returnable documents.
• Compliance with any further requirements specified in the scope of work or specification (to be confirmed from the full scope document).

Quality evaluation uses a 7-point scoring model across three sections:

• Section A (ISO 9001 QMS Requirements): 3 points (method statement, quality policy, quality objectives).
• Section B (QMS in Operation): 2 points (roles/responsibilities/authorities documentation; external provider control).
• Section E (Additional Requirements): 2 points (Form A signed; scope-specific requirements).

Each indicator scores 1 point if compliant. No minimum threshold or price/functionality weighting is specified.

Returnable documents: completed and signed Annexure B — Acknowledgement Form for Eskom OHS Legal and Other Requirements (Eskom Identifier 240-43921804 Rev 5). The form must be signed by an authorised person (CEO, Director or Managing Director) and witnessed by two witnesses. No other submission instructions, closing details or delivery address are provided in this document.

Bidders must sign the Acknowledgement Form for Eskom OHS legal and other requirements (Annexure B, Eskom Identifier 240-43921804 Rev 5). No other eligibility criteria are stated in the provided document.

Professional services to investigate potential subsurface instability in the vicinity of the NTCSA Vulcan Substation. The main contractor must demonstrate the process and selection criteria used when appointing subcontractors or suppliers, notify Eskom before appointing them, ensure they have adequate resources and competencies, and remain accountable for their OHS compliance. The main contractor must monitor subcontractors through audits and assessments, define grounds for termination of subcontractor work, and manage all non-conformances through performance and penalty processes. Eskom reserves the right to verify subcontractor management and may request testimonials, references and client contact details for similar previous work.

Mandatory compliance with: Eskom Contractor Health and Safety Requirements Standard 32-136; project-specific OHS specification/requirements; Occupational Health and Safety Act (Act 85 of 1993); Compensation for Occupational Injuries and Diseases Act (Act 130 of 1993). After contract award, the supplier must fully align its processes to Eskom's OHS requirements (policies, procedures, standards). Penalties apply to the main supplier for any non-conformance with Eskom or statutory OHS requirements by the main supplier, its contractors or suppliers. All employees (including contractors and suppliers) must undergo the relevant Eskom induction and the company's own induction. Signed acknowledgement of understanding and acceptance of these requirements (Annexure B) is required.

OHS legal and other requirements (Annexure B, Eskom Identifier 240-43921804 Rev 5, effective May 2021):

• Comply with Eskom Contractor Health and Safety Requirements Standard 32-136.
• Comply with project-specific OHS specification/requirements provided.
• Comply with the Occupational Health and Safety Act (Act 85 of 1993).
• Comply with the Compensation for Occupational Injuries and Diseases Act (Act 130 of 1993).
• After contract award, fully align company processes to Eskom's OHS requirements (policies, procedures, standards).
• Penalties enforced on the main supplier for non-conformances pertaining to Eskom and/or statutory OHS requirements by the main supplier, its contractors or suppliers.
• Ensure all employees (including contractors/suppliers) undergo relevant Eskom induction and the company's own induction.
• Signed acknowledgement (Annexure B) confirming understanding of requirements and consequences of non-compliance is mandatory.

Main contractor obligations for subcontractor management:

• Demonstrate to Eskom the process and selection criteria applied when appointing contractors and suppliers.
• Notify Eskom prior to the appointment of contractors or suppliers for commencement of work.
• Ensure contractors/suppliers have adequate resources and competencies.
• Remain accountable for management of contractors/suppliers to ensure compliance with applicable legal and Eskom requirements during contract execution.
• Monitor contractors/suppliers through audits and assessments for OHS compliance during work execution.
• Define grounds for termination of work done by contractors/suppliers.
• Deal directly with all non-conformances/non-compliance by contractors/suppliers (all tiers) through performance and penalty processes.
• Eskom reserves the right to verify subcontractor management and may request copies of testimonials/references and client contact details (including Eskom) for similar previous work.

The document is a supplier declaration of interest form for NTCSA procurement. It requires the signatory to certify under oath that the information provided is true and correct. NTCSA reserves the right to take action against the supplier or the signatory if the declaration proves false. The form defines key terms: private work, commercial activity, close family, associate, participation in the procurement process, and business courtesy. It also requires disclosure of any other services the supplier is currently rendering to NTCSA business units, subsidiaries, suppliers of primary energy or strategic commodities, and key industrial customers, if the supplier is acting as a consultant.

Returnable documents: the NTCSA Supplier Declaration of Interest form must be completed, signed, and submitted with the bid. The form requires the signatory's full name, capacity, and the supplier's registered legal name and company registration number. The declaration must be submitted under oath. Bidders must delete inapplicable options (e.g., enquiry/tender/negotiation) where indicated. No other submission instructions are stated in the available document.

The only stated evaluation-related requirement is the submission of the Supplier Declaration of Interest form. The form requires disclosure of: (1) any interest holder employed by or serving as a director at NTCSA; (2) any close family member or associate of an NTCSA employee/director participating in the procurement; (3) any business courtesy given to or received from an NTCSA employee/director in the last 12 months; and (4) any other services currently provided to NTCSA business units, subsidiaries, or related entities. No other evaluation criteria (e.g., price, functionality, B-BBEE points) are stated in the available document.

The document is solely a supplier declaration of interest form. It does not contain technical specifications for the investigation of subsurface instability at the NTCSA Vulcan Substation. No scope, deliverables, quantities, standards, or service levels are stated.

Bidders must complete and submit the NTCSA Supplier Declaration of Interest form. The form requires an oath certifying the truthfulness of the information. Bidders must disclose any conflicts of interest, including employment with NTCSA, family or associate relationships with NTCSA employees/directors, business courtesies exchanged in the last 12 months, and other services provided to NTCSA or related entities. No other compliance requirements (e.g., CSD registration, tax clearance, B-BBEE level, CIDB grading) are stated in the available document.

Closing date and time: 9 October 2026 at 10:00. Submission method and address not stated in the available text.

Scope: professional services to investigate potential subsurface instability in the vicinity of the NTCSA Vulcan Substation. No further deliverables, quantities, standards or service levels are provided in the available text.

Insufficient searchable text - AI extraction recommended

Controlled Disclosure

When downloaded from the document management system, this document is uncontrolled and the responsibility rests

with the user to ensure it is in line with the authorized version on the system. No part of this document may be reproduced

in any manner or form by third parties without the written consent of NTCSA SOC Ltd, © copyright NTCSA SOC Ltd, Reg

No 2021/539129/30

of 74

File name: 559-235050781 1.01_NTCSA Invitation_to_Tender_(ITT)_ eTendering Template- Vulcan sinkhole (003)

Template ID: 240-43921804 (Rev 7) Header and Footer portrait template

Document 559-235050781 Rev 3

Invitation to Tender/ Request Identifier

for Proposal Effective Date July 2024

Review Date July 2027

Refer to

contractual

1. Tenderer must submit a design Technical Demonstrate compliance to the

proposal and method statement proposal/Construction full scope of works, National

report for the Vulcan Substation method statement which Standards and Eskom

Sinkhole Rehabilitation, addressing outlines method Technical Requirements.

ALL scope as outlined in 240- statement of how the

Controlled Disclosure

When downloaded from the document management system, this document is uncontrolled and the responsibility rests

with the user to ensure it is in line with the authorized version on the system. No part of this document may be reproduced

in any manner or form by third parties without the written consent of NTCSA SOC Ltd, © copyright NTCSA SOC Ltd, Reg

No 2021/539129/30

of 74

File name: 559-235050781 1.01_NTCSA Invitation_to_Tender_(ITT)_ eTendering Template- Vulcan sinkhole (003)

Template ID: 240-43921804 (Rev 7) Header and Footer portrait template

Document 559-235050781 Rev 3

Invitation to Tender/ Request Identifier

for Proposal Effective Date July 2024

Review Date July 2027

98155775 scope and specification sinkhole will be

document. rehabilitated and

concrete drainage

channels will be

constructed.

2. Professional Registration for Copy of Professional Legislative Compliance (SANS

Geotechnical Certification with 1936: 1-4; National

Engineering/Geohydrology/Engineeri SACNASP/ECSA and Environmental Management

ng Geology with ECSA/SACNASP. copy of degree/diploma. Act, ).

The support technical staff involved

in compiling of the document and

generating of designs need to have a

degree/diploma in Civil

Engineering/Geology/Geohydrology.

3. Filled in BOQ. BOQ issued out with BOQ filled in with To ensure pricing of services is

the 240-98155775 scope and projected values for all within market-related prices.

specification document. the investigation.

4. Tenderer must submit evidence of Reference letters To ensure that the tenderer is

completing a minimum of 3-4 detailing the completion competent in executing the

projects for geotechnical of the geotechnical works outlined in 240-

investigations similar with the scope investigations. 98155775 scope and

outlined in 240-98155775 scope and Appointment letters and specification document.

specification document. list of projects will not be

considered without

reference letters.

Note: A response of “NO” to any of the Mandatory Evaluation Criteria would results in immediate

disqualification of the Tender and discontinue further evaluation

3.13 Functionality requirements are applicable

The following criteria will be applicable for this transaction under functionality criteria

No Description Weightin Sub- Tender Returnable Scoring criteria

g weightin

g

6.1 Geotechnical 100%

Engineering

Professional

Services

Issue date: 28 August 2026

Closing date and time: 09 October 2026 at 10:00 SAST

Tender validity period: 120 days from closing date (extendable by NTCSA; tenderers agreeing may not modify tender)

Non-compulsory site clarification meeting: 16 September 2026 at 11:00 at Vulcan Substation (Witbank). Address link: https://maps.app.goo.gl/nPJR21SuEyERUUJ18?g_st=ac

Clarification queries deadline: 10 working days before tender closing date

Addenda and clarifications posted on e-tender portal and Tender Bulletin

Non-compulsory site clarification meeting required at Vulcan Substation (Witbank) on 16 September 2026 at 11:00am. Address link: https://maps.app.goo.gl/nPJR21SuEyERUUJ18?g_st=ac. Clarification queries must be submitted 10 working days before tender closing date. Addenda and clarifications posted on e-tender portal and Tender Bulletin.

NTCSA Representative: Tshifhiwa Modau

Tel: 011 629 5553

Email: [email protected]

Procurement Manager: Vukosi Maluleke

Escalation path:

1. NTCSA Representative
2. Procurement Manager
3. Middle Manager or Senior Manager Procurement
4. Group Executives or Group Chief Executive Officer (last resort only)

Communication restrictions: Tenderers must not contact any NTCSA employee involved in the tender other than the NTCSA Representative. Escalation must follow the defined path.

Submission method: Electronic only via NTCSA Tender Bulletin site on Eskom E-tendering platform. Documents must be uploaded under Technical, Commercial, Financial, and Other folders. All documents in PDF format; price list also required in Excel format. Upload size limit: 500 MB per document, 4 GB total. No zip/condensed files. No hard copies accepted. Resubmission replaces previous submission; only latest version considered. Submission status must show as complete. Tender closing: 09 October 2026 at 10:00 SAST. Late tenders not accepted.

Returnable documents (disqualifiable if missing at closing):

• Basic Compliance: electronic PDF copy of tender; price list in PDF and Excel
• Authorisation Form (Annexure A)
• Acknowledgement Form (Annexure B)
• Tenderer's Particulars (Annexure C)
• Integrity Declaration Form (Annexure D) – includes Supplier Integrity Pact from www.ntcsa.co.za
• CPA Requirements for Local Goods/Services (Annexure E)
• SBD 1 Invitation to Bid (Annexure H)
• SBD 4 Bidders Disclosure (Annexure J)
• SBD 6.1 Preference Points Claim Form (Annexure I)
• JV documents (if applicable): letter of intent/JV agreement, confirmation of single incorporated entity, single designated bank account
• E-tendering Help Manual Acknowledgement Form
• Supplier Non-Disclosure Agreement
• SD&L Undertaking
• Mandatory Contractual Requirement: Proof of valid CSD Registration (CSD number/report)

Returnable documents (non-disqualifiable at closing; 5 working days to remedy if missing):

• Tax Clearance Certificates (foreign tenderers with SA footprint not on CSD; local tenderers without SARS e-filing PIN/CSD profile)
• Tax Evaluation Questionnaire (services contracts only)
• Specific Goals proof (failure = zero points, not disqualification)
• Compliance with Employment Equity Act (SA tenderers only)

Returnable documents for evaluation (zero score if missing):

• Scope of Work
• NEC/Contract
• Pricing Schedule/BOQ (must be filled in full; incomplete = non-responsive)
• Functionality/Technical requirements

Not applicable: CIDB grading, Reverse e-auction, Building/Civil CSDG, CIDB Indirect Targeting, Contract Participation Goals, Insurance Deductibles, List of Acceptable Guarantors, Standard Terms and Conditions, Additional documents (ECSA/SACPCMP/CVs/permits/licenses).

Returnable documents categorised as: (1) Disqualifiable at tender closing: Basic Compliance (electronic PDF copy, price list in PDF and Excel), Authorisation Form (Annexure A), Acknowledgement Form (Annexure B), Tenderer's Particulars (Annexure C), Integrity Declaration Form (Annexure D), CPA Requirements for Local Goods/Services (Annexure E), SBD 1 Invitation to Bid (Annexure H), SBD 4 Bidders Disclosure (Annexure J), SBD 6.1 Preference Points Claim Form (Annexure I), JV documents (letter of intent, JV agreement, single entity confirmation, single bank account), E-tendering Help Manual Acknowledgement Form, Supplier Non-Disclosure Agreement, SD&L Undertaking, Mandatory Contractual Requirement - Proof of valid CSD Registration. (2) Non-disqualifiable at tender closing: Tax Clearance Certificates, Tax Evaluation Questionnaire, Specific Goals proof, Compliance with Employment Equity Act. (3) For evaluation (zero score if missing): Scope of Work, NEC/Contract, Pricing Schedule/BOQ (must be filled in full), Functionality/Technical requirements. Additional: CIDB grading (not applicable), Reverse e-auction (not applicable), Building/Civil CSDG (not applicable), CIDB Indirect Targeting (not applicable), Contract Participation Goals (not applicable), Insurance Deductibles (not applicable), List of Acceptable Guarantors (not applicable), Standard Terms and Conditions (not applicable), Additional documents (ECSA/SACPCMP/CVs/permits/licenses - not applicable). Mandatory contractual supporting evidence: COIDA certificate of good standing (SA tenderers only), Quality, Safety, Environmental documents per scope, Due Diligence/Financial Analysis - Audited Financial Statements for previous 18 months (or last year), JV/SPV participants each to submit audited statements, start-ups within 12 months exempt initially but must furnish first year statements if awarded.

Two-stage evaluation:

1. Mandatory technical criteria (disqualifying if any response is "NO"):

• Design proposal and method statement for Vulcan Substation Sinkhole Rehabilitation addressing all scope per document 240-98155775
• Professional registration for Geotechnical Engineering/Geohydrology/Engineering Geology with ECSA/SACNASP; support staff with degree/diploma in Civil Engineering/Geology/Geohydrology
• Filled BOQ with projected values for all investigations
• Evidence of 3-4 completed geotechnical investigation projects similar to scope (reference letters required; appointment letters/project lists insufficient)

2. Functionality evaluation (threshold 70%):

• 6.1.1 Proposal detailing execution method (40%): 5=100% excellent, 4=80% good, 2=40% barely adequate, 0=0% less than minimum
• 6.1.2 Company background and experience on similar projects (30%): 5=100% >5 projects, 4=80% 5 projects, 2=40% 3-4 projects, 0=0% 0 projects (testimonials/reference letters/completion certificates required)
• 6.1.3 Project Programme (10%): 5=100% compliant, 4=80% compliant with qualifications, 2=40% non-compliant, 0=0% deficient
• 6.1.4 CVs of key personnel (20%): Registered Geotechnical/Engineering Geologist (15%), Engineering Geologist/Geotechnical Engineer (5%); 5=100% Level 4 expert (registered +10 years), 4=80% Level 3 (registered 5 years), 3=60% registered professional, 0=0% deficient

Scoring method: 5=100% compliant, 4=80% compliant with qualifications, 2=40% non-compliant, 0=0% deficient. Scores 1 and 3 not used.

Price evaluation (80 points): inclusive of VAT, corrected for arithmetic errors, excluding contingencies, adjusted for variations, NPV comparison based on tendered programme, price adjustment factors, exchange fluctuations, risk. Unconditional discounts considered; conditional discounts not considered for evaluation but implemented at payment.

Specific Goals (20 points) per PPPFA 80/20 system. B-BBEE status points: Level 1=20, 2=18, 3=14, 4=12, 5=8, 6=6, 7=4, 8=2, Non-compliant=0. Failure to submit proof = 0 points (not disqualified).

Ranking: Combined price + specific goals score, highest to lowest.

Objective criteria may justify award to other than highest scoring tenderer if clearly stated. Designated Sector and CIDB Skills Development not applicable. Reverse e-auction not applicable.

Scope: Professional services to investigate potential subsurface instability in the vicinity of NTCSA Vulcan Substation (Witbank) and design sinkhole rehabilitation with concrete drainage channels. Full scope defined in document 240-98155775.

Mandatory technical deliverables:

• Design proposal and method statement report for Vulcan Substation Sinkhole Rehabilitation addressing all scope per 240-98155775, outlining sinkhole rehabilitation method and concrete drainage channel construction
• Project Programme containing: SHE file compilation by consultant and auditing by ESKOM; mobilising and establishing contractors and subcontracts
• Filled BOQ with projected values for all investigations
• Evidence of 3-4 completed geotechnical investigation projects similar to scope (reference letters required)

Professional registration requirements:

• Lead engineer/geologist: Registered Geotechnical Engineer or Registered Engineering Geologist with ECSA/SACNASP
• Support technical staff: Degree/diploma in Civil Engineering/Geology/Geohydrology
• Only one key person needs registered geo-professional status

Key personnel experience levels:

• Level 4 Expert: Registered +10 years post-registration experience in geotechnical investigations and reporting/Dolomitic Stability investigations
• Level 3 Experienced: Registered 5 years post-registration experience in geotechnical investigations and reporting/Dolomitic Stability investigations
• Registered Professional: Registered with ECSA/SACNASP

Legislative compliance: SANS 1936: 1-4; National Environmental Management Act.

Referenced documents: 240-68099512 Form A_Cat 4_Rev 9, 240-105658000 Supplier Quality Management Specification, 240-126469599 Method Statement template final.

proposal and method statement proposal/Construction full scope of works, National

report for the Vulcan Substation method statement which Standards and Eskom

240-68099512 Form A_Cat 4_ Rev 9 - Investigate subsurface instability at Vulcan Substation

240-105658000 Supplier Quality Management Specification (3)

240-126469599_Method Statement template final

Financial Sustainability - Financial Analysis of Tenderers Financial Statements (to determine the

contractors’ financial viability).

for Proposal Effective Date July 2024

Review Date July 2027

Any addenda or clarifications to the Invitation to Tender (ITT) will be

posted on the e-tender portal and the Tender Bulletin. Tenderers must

review these platforms for updates before finalizing their bid

submissions. NTCSA will not be responsible for any disadvantages or

disqualifications resulting from Tenderers not accessing the latest ITT

information.

2.22 Alternative tenders Alternative tenders are not allowed

2.33 Cataloguing The successful tenderer may be required to provide the cataloguing

information per item after contract award, and in that instance, will need

will to ensure that all materials delivered to NTCSA are labelled in line

with NTCSA’s labelling specifications as may be stipulated. Where

cataloguing is a requirement, the Pricing Schedule must also include a

line item for cataloguing, which tenderers are required to quote for.

for Proposal Effective Date July 2024

Review Date July 2027

work detailed in out based on 240- clearly how the service will be

the scope and 985775 scope and delivered above and beyond

minimum requirements specification specification

2 = 40% = Barely adequate levels of document document. Please

required scope proposal

see attached 0 = 0% = less than minimum level

addendum for how required scope proposal or irrelevant

the score will be

determined

6.1.2 Company's 30% Demonstrate 5 = 100% = More than 5 completed

background and experience on projects of similar nature

experience on similar projects. 4 = 80% = 5 completed projects of

for Proposal Effective Date July 2024

Review Date July 2027

6.1.4 CV's of key 20% Provide CV's (with 5 = 100% = Level 4 Expert geo-

personnel evidence of professional (registered + 10 years

attached post registration experience in

certificates) of key geotechnical investigations and

personnel as reporting/Dolomitic Stability

specified below: The investigations where necessary)

lead engineer or 4 = 80% = Level 3 experienced geo

lead engineering professional (registered 5 years post

geologist required to registration experience in

meet minimum geotechnical investigations and

criteria as registered reporting/Dolomitic Stability

geo-professional. investigations where necessary)

A geotechnical 3 = 60% = Registered geo-

engineer and professional

engineering 0 = 0% = TOTALLY DEFICIENT OR

geologist should be NON-RESPONSIVE

assigned to the

project. Only one

needs to be a

registered geo-

professional.

• Registered

2. The CV’s of Key Personnel should have experience which is comparable in nature to the Works specified

in this tender.

5 100 compliant

• Meet technical requirement(s)/AND;
• No foreseen technical risk(s) in meeting technical

requirements.

4 80 compliant with associated qualifications

• Meet technical requirement(s) with;
• Acceptable technical risk(s) AND/OR;
• Acceptable exceptions AND/OR;
• Acceptable conditions.

2 40 non-compliant

• Does not meet technical requirement(s) AND/OR;
• Unacceptable technical risk(s) AND/OR;
• Unacceptable exceptions AND/OR;
• Unacceptable conditions.

0 0 totally deficient or non-responsive

Note 1: The scoring does not allow for 1 and 3

Note 2: Foreseen acceptable and unacceptable risk(s), exceptions and conditions shall be

unambiguously defined in the relevant Tender Technical Evaluation Strategy

3.14 Evaluation of Price Prices will be evaluated as follows:

1. Inclusive of VAT;
2. Corrected for arithmetical errors;

Quality requirements referenced per contractual requirements. Legislative compliance per SANS 1936: 1-4 and National Environmental Management Act. Professional registration with ECSA/SACNASP required as quality assurance.

1.1.28 Pricing Attached Y √ NB: The Bill

Schedule/BOQ (if of Quantities

not contained in must be

Contract) filled in full

and failure

to complete

the BOQ in

full will be

regarded as

non-

responsive

1.1.29 Additional Not Applicable

documents

required (ECSA/

evaluation criteria

6.1.1 Proposal which 40% Technical proposal 5 = 100% =Excellent response

details how which includes demonstrates ability to deliver

service far in excess of minimum company will method in which

requirement execute scope of scope will be carried

4 = 80% = Good response detailing

Goal, it will not be disqualified. However, it will be awarded 0 points for

that Specific Goal.

3.19 Ranking of tenders Tenderers will be ranked by applying the preferential point scoring for

the [80/20] system. NTCSA will add the score from Pricing and Specific

Pricing Schedule/BOQ attached and must be filled in full; failure to complete BOQ in full regarded as non-responsive. Price list to be submitted in PDF and Excel format.

Price evaluation basis:

• Inclusive of VAT
• Corrected for arithmetic errors
• Excluding contingencies in BOQ/activity schedule
• Adjusted for acceptable variations, deviations, alternative tenders
• NPV comparison based on tendered programme, price adjustment factors, exchange fluctuations, risk
• Unconditional discounts considered for evaluation
• Conditional discounts not considered for evaluation but implemented at payment
• Price scored out of 80 points

Payment terms:

• Contracts below R50 million (incl. VAT): payment within 30 days of receipt of undisputed invoices
• Contracts above R50 million (incl. VAT): payment within 60 days of receipt of undisputed invoices

Financial due diligence: Audited Financial Statements for previous 18 months (or last year if 18 months not available). JV/SPV participants each to submit audited statements. Start-ups formed within last 12 months exempt initially but must furnish first year statements if awarded.

Tender validity: 120 days from closing date. NTCSA may extend; tenderers agreeing may not modify tender (modification leads to disqualification).

Provision of Security for Performance: Not applicable.

Cataloguing: Successful tenderer may be required to provide cataloguing information post-award with labelling per NTCSA specifications; pricing schedule must include cataloguing line item.

Mandatory eligibility:

• Not restricted from doing business with NTCSA or State-Owned Companies
• Not a national of a sanctioned country
• Not submitting more than one tender (individually or as JV partner)
• JV/consortium agreement must state joint and several liability
• No conflict of interest (common controlling partner/majority shareholder, or relationship enabling access to competitor info/influence on employer decisions)
• Tender signed by authorised person
• Not restricted by National Treasury
• Not on Tender Defaulters list
• Not sub-contracting 100% of Scope of Work
• Not a flagged supplier (Zondo Report/SIU misconduct, forensic report breach of Supplier Integrity Pact, or on National Treasury Restricted Suppliers/Defaulters list per PRECCA)

Mandatory contractual supporting evidence:

• Proof of valid and current CSD Registration (CSD number/report) – all local and foreign tenderers with local footprint
• COIDA: Original certificate of good standing or proof of application from Compensation Fund or licensed compensation insurer (SA tenderers only)
• Quality, safety, environmental documents as required per scope of works
• Audited Financial Statements (previous 18 months/last year)

Tax compliance:

• Foreign tenderers with SA footprint not on CSD and without SARS PIN: certified tax clearance certificate
• Local tenderers without SARS e-filing PIN/CSD profile: certified tax clearance certificate
• Foreign suppliers with no SA footprint: complete SBD 1 only, no tax compliance proof required
• Tax Evaluation Questionnaire (services contracts only)

B-BBEE and Specific Goals:

• SBD 6.1 Preference Points Claim Form (Annexure I)
• Valid B-BBEE certificate (SANAS accredited/sworn affidavit/CIPC affidavit), proof of ownership/shareholding (CIPC documentation with breakdown), certified ID copies of shareholders, proof of disability (where applicable)
• Failure to submit = 0 points for Specific Goals (not disqualification)

Local content:

• CPA Requirements for Local Goods/Services (Annexure E) – if not submitted, prices evaluated as fixed and firm for contract duration
• CPA(IG) for Foreign Goods/Services (Annexure F) – if not submitted, prices evaluated as fixed and firm for contract duration
• SBD 6.2 Declaration for Local Production and Content (Annexure G1-G4) – not applicable unless designated materials included

Employment Equity Act compliance (SA tenderers only): Proof of compliance and submission of Employment Equity report to Department of Labour (if designated employer).

JV requirements: Letter of intent/JV agreement, confirmation of single incorporated entity, single designated bank account.

Standard forms required: SBD 1, SBD 4, SBD 6.1, SBD 6.2 (if applicable), Supplier Non-Disclosure Agreement, SD&L Undertaking, E-tendering Help Manual Acknowledgement Form.

CIDB grading: Not applicable.

CSDG, CPG, Indirect Targeting: Not applicable.

B-BBEE evaluation under 80/20 PPPFA system. Specific Goals scored out of 20 points. B-BBEE status level points: Level 1=20, 2=18, 3=14, 4=12, 5=8, 6=6, 7=4, 8=2, Non-compliant=0. Required documentation: Valid B-BBEE certificate (SANAS accredited verification agency/sworn affidavit/CIPC affidavit), proof of ownership/shareholding (CIPC documentation with breakdown), certified ID copies of shareholders, proof of disability (where applicable). Failure to submit proof = 0 points for Specific Goals (not disqualified). SBD 6.1 Preference Points Claim Form (Annexure I) required. SBD 6.2 Declaration for Local Production and Content (Annexure G1-G4) not applicable unless designated materials included. CPA Requirements for Local Goods/Services (Annexure E) and CPA(IG) for Foreign Goods/Services (Annexure F) required; if not submitted, prices evaluated as fixed and firm for contract duration.

Annexure B-to be completed and signed

NTCSA - Annexure T 1 OHS Tender Evaluation Template (High risk)- Sinkhole Investigation Project

SHE Specification -Vulcan Sinkhole Investigation Project

Sinkhole Investigation_BRA

Quality Requirements

240-12248652_List of Tender Returnables_Cat 4_ Rev 7 - Investigate subsurface instability at Vulcan

Controlled Disclosure

When downloaded from the document management system, this document is uncontrolled and the responsibility rests

with the user to ensure it is in line with the authorized version on the system. No part of this document may be reproduced

in any manner or form by third parties without the written consent of NTCSA SOC Ltd, © copyright NTCSA SOC Ltd, Reg

No 2021/539129/30

of 74

File name: 559-235050781 1.01_NTCSA Invitation_to_Tender_(ITT)_ eTendering Template- Vulcan sinkhole (003)

Template ID: 240-43921804 (Rev 7) Header and Footer portrait template

Document 559-235050781 Rev 3

Invitation to Tender/ Request Identifier

for Proposal Effective Date July 2024

Review Date July 2027

Substation

240-68099512 Form A_Cat 4_ Rev 9 - Investigate subsurface instability at Vulcan Substation

240-105658000 Supplier Quality Management Specification (3)

240-126469599_Method Statement template final

Financial Sustainability - Financial Analysis of Tenderers Financial Statements (to determine the

contractors’ financial viability).

Contractual Requirements are not evaluation criteria. They will be assessed after the evaluation and

ranking of the tenders. Proof that the tenderer recommended for award has met the stipulated

contractual requirements must be submitted prior to contract award.

Failure to meet stipulated Contractual Requirements by the stipulated deadlines may result in the

tenderer being regarded as non-responsive and ineligible for contract award.

Payment Terms Tenderers are requested to bear in mind NTCSA's standard

payment terms as stipulated hereunder when submitting tenders

and concluding contracts with NTCSA:

For contracts valued below R50 000 000 (Fifty Million Rand) including

VAT, NTCSA is committed to paying Suppliers within 30 days of receipt

of undisputed invoices.

For contracts valued above R50 000 000 (Fifty Million Rand) including

VAT, NTCSA is committed to paying suppliers within 60 days of receipt

of undisputed invoices.

2.29-2.30 Contract Skills Not Applicable

Development Goal (CSDG) and

Contract Participation Goals (CPG)

2.28 CIDB Requirements (where CIDB Requirements are not applicable

applicable for Engineering and

Construction Works Contracts)

3.22. Contractual Conditions The conditions of contract are the NEC3 Term Service Contract.

3.24 Sign Form of Agreement Not Applicable

Controlled Disclosure

When downloaded from the document management system, this document is uncontrolled and the responsibility rests

with the user to ensure it is in line with the authorized version on the system. No part of this document may be reproduced

in any manner or form by third parties without the written consent of NTCSA SOC Ltd, © copyright NTCSA SOC Ltd, Reg

No 2021/539129/30

of 74

File name: 559-235050781 1.01_NTCSA Invitation_to_Tender_(ITT)_ eTendering Template- Vulcan sinkhole (003)

Template ID: 240-43921804 (Rev 7) Header and Footer portrait template

Document 559-235050781 Rev 3

Invitation to Tender/ Request Identifier

for Proposal Effective Date July 2024

Review Date July 2027

Please note:

Tenderers are requested to bear in mind NTCSA's standard payment terms as stipulated

hereunder when submitting tenders and concluding contracts with NTCSA:

For contracts valued below R50 000 000 (Fifty Million Rand) including VAT, NTCSA is committed

to paying Suppliers within 30 days of receipt of undisputed invoices.

For contracts valued above R50 000 000 (Fifty Million Rand) including VAT, NTCSA is committed

to paying suppliers within 60 days of receipt of undisputed invoices.

NTCSA reserves the right to negotiate with preferred bidders after a competitive bidding process

or price quotations should the tendered prices not be market-related.

Main contractors/ suppliers are discouraged from subcontracting with their subsidiary

companies as this may be interpreted as subcontracting with themselves and / or using their

subsidiaries for fronting. Where a main contractor subcontracts with a subsidiary, this must be

declared in its tender documents.

A report containing a list of potential sub-contractors may be drawn by accessing the following

link: www.csd.gov.za

“proof of B-BBEE status level of contributor” means-

(a) the B-BBEE status level certificate issued by an authorised body or person; or

(b) a sworn affidavit as prescribed by the B-BBEE Codes of Good Practice; or

(c) any other requirement prescribed in terms of the Broad-Based Black Economic

Empowerment Act

Controlled Disclosure

When downloaded from the document management system, this document is uncontrolled and the responsibility rests

with the user to ensure it is in line with the authorized version on the system. No part of this document may be reproduced

in any manner or form by third parties without the written consent of NTCSA SOC Ltd, © copyright NTCSA SOC Ltd, Reg

No 2021/539129/30

of 74

File name: 559-235050781 1.01_NTCSA Invitation_to_Tender_(ITT)_ eTendering Template- Vulcan sinkhole (003)

Template ID: 240-43921804 (Rev 7) Header and Footer portrait template

in excel format

(The upload size

per document is

500 megabytes

and total

submission is

restricted to 4

gigabytes))

(Excel

spreadsheet will

be submitted on

request)

1.1.2 *Authorisation Annexure A Y √

Form

1.1.3 *Acknowledgeme Annexure B Y √

nt form

1.1.4 *Tenderer’s Annexure C Y √

particulars

1.1.5 *Integrity Annexure D Y √

shall achieve in

the performance

of the contract

the CSDG

established in

the CIDB

contracts

published in GN

1779,

Goals (CPG)

(if applicable)

[Note that the

requirements of

a contract

participation

goal relating to

the engagement

of targeted

enterprises as

established in

the aforesaid

standard applies

to:

(a) construction

works contracts

in the General

Building (GB)

and to Civil

(Csd

number/CSD

Report)

[applicable to all

tenderers of local

origin and foreign

tenderers with

local footprint]

ADDITIONAL CONTRACTUAL REQUIREMENTS SUPPORTING EVIDENCE [where applicable

and as stipulated under tender Data]

1.1.36 Safety √

contractual

requirements

below.

1.1.38 Other √

safety/quality

documents as

required per

scope of works

completed projects

consisting of the

following

information:

• Name of company

where project is

executed

• Project description
• Dates when

investigation was

carried out and

completed

• Contract value
• Contact person

(reference) and

Minimum 3-4

projects

6.1.3 Project 10% Project Programme 5 = 100% = COMPLIANT

Programme containing the

• Meet technical

following activities: requirement(s)/AND

SHE file compiling

• No foreseen technical risk(s)

by consultant and in meeting technical

auditing by ESKOM requirements

Mobilising and 4 = 80% = COMPLIANT WITH

establishing of ASSOCIATED QUALIFICATIONS

contractors and

2 = 40% = NON-COMPLIANT subcontracts

0 = 0% = totally deficient or

Copy of 240-43921804 Environmental Management Tender Returnable Vulcan Sinkholes

contractual

requirements

below.

1.1.39 Environmental √

Environmental Requirements

Copy of 240-43921804 Environmental Management Tender Returnable Vulcan Sinkholes

Safety Requirements

1.1.33 Insurance Not Applicable

sanctions list. A tenderer shall be found to have the nationality of a

country if the tenderer is a national or is constituted, incorporated, or

registered and operates in conformity with the provisions of the laws

of that country. This criterion shall also apply to the determination of

the nationality of proposed subcontractors or suppliers for any part of

the Contract including related services.

2. Tenderers submit more than one [tender/proposal] either individually

or as a partner in a joint venture (JV) or consortium, except on an E-

Tendering system where there is a limit size (The upload size per

document is 500 megabytes and total submission is restricted to 4

gigabytes).

measures against these suppliers; and

b) Other suppliers implicated in serious misconduct and a breach of

the Eskom Supplier Integrity Pact by a forensic report or other

source of credible information, such as the SAPS, the NPA, the SIU

or other related source.

c) List of Restricted Suppliers and Defaulters as per PRECCA as

issued by National Treasury

The implications of this “flag” are as follows:

o No new contracts or extension of existing contracts may be

awarded to the supplier pending finalisation of supplier disciplinary

processes against the supplier. Where a As such, the supplier’s bid

should be removed from any tender evaluation at the “eligibility” or

“compliance” assessment stage of the evaluation.

payment terms as stipulated hereunder when submitting tenders

and concluding contracts with NTCSA:

For contracts valued below R50 000 000 (Fifty Million Rand) including

VAT, NTCSA is committed to paying Suppliers within 30 days of receipt

of undisputed invoices.

For contracts valued above R50 000 000 (Fifty Million Rand) including

VAT, NTCSA is committed to paying suppliers within 60 days of receipt

of undisputed invoices.

2.29-2.30 Contract Skills Not Applicable

Development Goal (CSDG) and

Contract Participation Goals (CPG)

2.28 CIDB Requirements (where CIDB Requirements are not applicable

applicable for Engineering and

Construction Works Contracts)

3.22. Contractual Conditions The conditions of contract are the NEC3 Term Service Contract.

3.24 Sign Form of Agreement Not Applicable

hereunder when submitting tenders and concluding contracts with NTCSA:

For contracts valued below R50 000 000 (Fifty Million Rand) including VAT, NTCSA is committed

to paying Suppliers within 30 days of receipt of undisputed invoices.

For contracts valued above R50 000 000 (Fifty Million Rand) including VAT, NTCSA is committed

to paying suppliers within 60 days of receipt of undisputed invoices.

Eligibility criteria: Tenderers must not be restricted from doing business with NTCSA or State-Owned Companies. Ineligible if: nationality of sanctioned country; submit more than one tender; JV/consortium agreement lacks joint and several liability; conflict of interest (common controlling partner/majority shareholder, or relationship enabling access to competitor's tender info or influence on employer decisions); tender signed by non-authorised person; restricted by National Treasury; on Tender Defaulters list; sub-contracts 100% of Scope of Work; flagged supplier (implicated in Zondo Report/SIU misconduct, forensic report breach of Supplier Integrity Pact, or on National Treasury Restricted Suppliers/Defaulters list per PRECCA). Basic compliance: meet eligibility criteria, submit complete electronic tender with commercial/financial/technical information, submit mandatory commercial returnables by deadline. Mandatory technical criteria (disqualifying if 'NO'): 1) Design proposal and method statement for Vulcan Substation Sinkhole Rehabilitation per scope 240-98155775; 2) Professional registration for Geotechnical Engineering/Geohydrology/Engineering Geology with ECSA/SACNASP, support staff with degree/diploma in Civil Engineering/Geology/Geohydrology; 3) Filled BOQ with projected values; 4) Evidence of 3-4 completed geotechnical investigation projects similar to scope (reference letters required, appointment letters/list of projects insufficient).

Functionality evaluation (threshold 70%): 6.1 Geotechnical Engineering Professional Services (100% weighting). Sub-criteria: 6.1.1 Proposal detailing execution method (40%) - scored 5 (100% excellent), 4 (80% good), 2 (40% barely adequate), 0 (0% less than minimum); 6.1.2 Company background and experience on similar projects (30%) - 5 (100% >5 projects), 4 (80% 5 projects), 2 (40% 3-4 projects), 0 (0% 0 projects) with testimonials/reference letters/completion certificates; 6.1.3 Project Programme (10%) - 5 (100% compliant), 4 (80% compliant with qualifications), 2 (40% non-compliant), 0 (0% deficient); 6.1.4 CVs of key personnel (20%) - Registered Geotechnical/Engineering Geologist (15%), Engineering Geologist/Geotechnical Engineer (5%) - 5 (100% Level 4 expert, registered +10 years), 4 (80% Level 3, registered 5 years), 3 (60% registered professional), 0 (0% deficient). Scoring method: 5=100% compliant, 4=80% compliant with qualifications, 2=40% non-compliant, 0=0% deficient. Price evaluation: inclusive of VAT, corrected for arithmetic errors, excluding contingencies, adjusted for variations, NPV comparison based on programme, price adjustment factors, exchange fluctuations, risk. Unconditional discounts considered, conditional discounts not considered for evaluation but implemented at payment. Price scored out of 80 points. Specific Goals scored out of 20 points per PPPFA. Ranking via 80/20 preferential point system. B-BBEE status points: Level 1=20, 2=18, 3=14, 4=12, 5=8, 6=6, 7=4, 8=2, Non-compliant=0. Failure to submit Specific Goals proof = 0 points (not disqualified). Objective criteria: Designated Sector (not applicable), CIDB Skills Development (not applicable). Reverse e-auction not applicable.

Tender for professional services to investigate potential subsurface instability in the vicinity of the NTCSA Vulcan Substation. The returnable document pack (240-43921804) is an environmental management tender returnable used to assess whether the Contractor/Service Provider has submitted required environmental documentation complying with specified requirements. The evaluation covers Environmental Management System (EMS), Environmental Management Programme (EMPr), Waste Management Plan, Aspect and Impact Register, and employer-defined additional requirements including an Environmental Bill of Quantity and signed Contractor Environmental Requirements Proforma (240-180100129). Minimum threshold for consideration is a weighted average score of 80%. Key personnel must include an environmental monitoring/reporting/incident management officer with minimum N.Diploma or BSc/Bachelor Degree in Environmental Sciences/Management/Nature Conservation or related field. Applicable legislation includes the National Water Act (36 of 1998) and National Environmental Management: Waste Act (59 of 2008). Eskom contacts: Project Manager Geoffrey Small, Eskom Representative Mpho Nnzimeni. Enquiry Number: 240-43921804.

Eskom representative contacts identified in the document:

• Project Manager: Geoffrey Small
• Eskom Representative: Mpho Nnzimeni
• Buyer's Name: Not specified in extracted text

Enquiry Number: 240-43921804

Document Identifier: 240-43921804

Document dates: Revision July 2023, Review Date July 2025

Returnable documents required for evaluation:

• Section A: Environmental Management System (Option 1 or Option 2) — valid EMS certification, environmental/SHEQ policy approved by top management, environmental objectives, documented roles and responsibilities (organogram), resources/competence/awareness/communication (including environmental awareness records), nonconformity and corrective action records, environmental emergency preparedness and response, performance evaluation records, internal audit programme records, management review meeting records.
• Section B: Environmental Management Programme and Environmental Authorisation — draft/example EMPr or Method Statements aligned to Scope of Work; documented evidence for hazardous chemical substances handling, vegetation management, site establishment, water management (consumption, uses, source, storm water, testing, National Water Act compliance), access control and routes, landowner liaison, environmental noise control, ambient air quality/dust control, environmental human resources (CV and competences of environmental monitoring/reporting/incident management person — minimum N.Diploma or BSc/Bachelor Degree in Environmental Sciences/Management/Nature Conservation or related), environmental awareness induction/toolbox talk material, environmental incident reporting (oil spills, fire, biodiversity), complaints/grievance management.
• Section C: Waste Management Plan — draft/example Waste Management Plan aligned to Scope of Work; applicable waste management legislation, waste segregation and minimisation, waste handling and disposal on site, waste reporting template, possible waste types/streams to be generated.
• Section D: Aspect and Impact Register — based on Tender Enquiry/Project Scope and Environmental Requirements for Contractors/Suppliers (240-180100134).
• Section E: Employer defined additional requirements — Environmental Bill of Quantity (items relevant to environmental aspects per scope of work); completed and signed Contractor Environmental Requirements Proforma (240-180100129).

All documents must be submitted as part of the tender returnable pack. A weighted average score of at least 80% is required to be considered.

Evaluation uses a weighted scoring system across five sections:

• Section A (Option 1): Environmental Management System Requirements — weight 30% of Contractor/Service Provider total score. Covers valid EMS, policy, objectives, organogram, resources/competence/awareness, nonconformity/corrective action, emergency preparedness, performance evaluation, internal audit, management review.
• Section A (Option 2): Alternative EMS scoring — weight not explicitly stated but contributes to total.
• Section B: Environmental Management Programme and Environmental Authorisation — weight not explicitly stated but contributes to total.
• Section C: Waste Management Plan — weight not explicitly stated but contributes to total.
• Section D: Aspect and Impact Register — weight not explicitly stated but contributes to total.
• Section E: Employer defined additional requirements — weight not explicitly stated but contributes to total.

Total Contractor/Service Provider Score = 100% (sum of all sections as a percentage).

Threshold: Tenderer must achieve a weighted average score of at least 80% to be taken into consideration. Each tenderer's scores serve as a numerical basis for tender comparison.

Scope: Provide professional services to investigate potential subsurface instability in the vicinity of the NTCSA Vulcan Substation.

Environmental management requirements per Eskom Transmission Environmental Management standards and Environmental Requirements for Contractors and/or Suppliers (document 240-180100134).

Key deliverables required:

• Environmental Management System (EMS) documentation (Option 1 or Option 2)
• Environmental Management Programme (EMPr) or Method Statements aligned to Scope of Work
• Waste Management Plan aligned to Scope of Work and National Environmental Management: Waste Act (Act No. 59 of 2008)
• Aspect and Impact Register based on project scope
• Environmental Bill of Quantity with items relevant to environmental aspects
• Completed and signed Contractor Environmental Requirements Proforma (240-180100129)

Minimum personnel requirement: Environmental monitoring/reporting/incident management person must hold minimum N.Diploma or BSc/Bachelor Degree in Environmental Sciences/Management/Nature Conservation or related field.

Applicable legislation: National Water Act (36 of 1998), National Environmental Management: Waste Act (59 of 2008).

Mandatory compliance documentation:

• Valid Environmental Management System (EMS) certification (Option 1) or alternative EMS evidence (Option 2)
• Environmental/SHEQ Policy approved by top management
• Environmental Objectives approved by top management
• Documented roles, responsibilities and authorities (organogram)
• Records of environmental awareness training conducted
• Nonconformity and corrective action records with closure evidence
• Environmental emergency preparedness and response documentation
• Performance evaluation records (monitoring, measurement, analysis, evaluation)
• Internal audit programme and records on previous related projects
• Management review meeting records (minutes, attendance registers)
• Compliance with National Water Act (36 of 1998) for water management
• Compliance with National Environmental Management: Waste Act (59 of 2008) for waste management
• Environmental human resources: CV and competences of designated environmental officer (minimum N.Diploma or BSc/Bachelor Degree in Environmental Sciences/Management/Nature Conservation or related)
• Completed and signed Contractor Environmental Requirements Proforma (240-180100129)

The document is an Occupational Health and Safety Baseline Risk Assessment template (identifier 240-70044602) for Eskom's North East Grid, covering the Sinkhole Project and Secondary Plant departments. It lists routine and non-routine activities with associated hazards, risks, existing controls, and additional controls across multiple risk categories including: driving-related risks (vehicle condition, unsecured loads, fatigue, adverse weather, poor roads, distractions, driver behaviour, reversing, idling, speeding); office administration risks (computer glare, poor illumination, ergonomics, ventilation, electrical appliances, fire, slips/trips/falls, structural defects, housekeeping); high voltage plant risks (electricution, uneven surfaces, tool handling, weather, insects/reptiles); secondary plant risks (dust/fly ash exposure, trench covers, workshop housekeeping); and psychosocial risks (work overload, extended hours, harassment, violence). Each risk is rated using consequence, likelihood, and risk control effectiveness matrices with reference to OHS Act 85 of 1993, Eskom SHEQ Policy 32-727, ORHVS regulations, and other Eskom procedures.

The document is an Occupational Health and Safety Baseline Risk Assessment template (identifier 240-70044602) for Eskom's North East Grid, covering the Sinkhole Project and Secondary Plant departments. It lists routine and non-routine activities with associated hazards, risks, existing controls, and additional controls across multiple risk categories including: driving-related risks (vehicle condition, unsecured loads, fatigue, adverse weather, poor roads, distractions, driver behaviour, reversing, idling, speeding); office administration risks (computer glare, poor illumination, ergonomics, ventilation, electrical appliances, fire, slips/trips/falls, structural defects, housekeeping); high voltage plant risks (electricution, uneven surfaces, tool handling, weather, insects/reptiles); secondary plant risks (dust/fly ash exposure, trench covers, workshop housekeeping); and psychosocial risks (work overload, extended hours, harassment, violence). Each risk is rated using consequence, likelihood, and risk control effectiveness matrices with reference to OHS Act 85 of 1993, Eskom SHEQ Policy 32-727, ORHVS regulations, and other Eskom procedures.

CSD registration and valid SARS tax compliance status PIN.

B-BBEE certificate or sworn affidavit for preference points.

Professional registration: Key personnel must be registered with SACNASP (geotechnical/geohydrology) or ECSA (engineering).

CIDB grading: Not specified; confirm if civil/geotechnical works require grading.

OHS compliance: Valid Letter of Good Standing (COIDA), approved health and safety plan, and risk assessments per Eskom Procedure 32-520.

ORHVS authorisation for all personnel accessing high-voltage areas.

Medical surveillance certificates for staff exposed to dust, noise, and confined spaces.

Proof of professional indemnity insurance (amount not specified in source).

This document is the Safety, Health and Environmental (SHE) Specification for the Vulcan Sinkhole Investigation contract (Eskom NTCSA North East Grid). It sets out the minimum SHE requirements that the principal contractor and any appointed contractors must meet for the duration of the contract. The specification covers legal compliance, Eskom-specific requirements, statutory appointments, risk assessments, safe work procedures, site management, training, communication, auditing, incident management, occupational health, working at heights, environmental management, and contract close-out. It references the OHS Act, Construction Regulations, NEMA, COIDA, and a suite of Eskom internal procedures and standards. The contractor remains fully accountable for its own health and safety programme; Eskom does not assume the contractor's legal responsibilities.

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Eskom Contract Manager: Tlholo Mafutsana

Eskom Health and Safety Manager: Thandi Magagula

Eskom Procurement Manager: Busi Mtungwa

Eskom Safety Officer: Beaular Falakahla

Contractors must be registered with the Compensation Commissioner (valid Letter of Good Standing). The construction safety officer must be registered with SACPCMP or similar professional body. Contractors must comply with the OHS Act and all referenced Eskom procedures and standards. No specific B-BBEE, CIDB, or CSD requirements are stated in the provided document.

Scope: Professional services to investigate potential subsurface instability in the vicinity of the NTCSA Vulcan Substation (North East Grid).

Contractor must develop a SHE plan meeting this specification and all applicable legislation.

Key requirements:

• Legal compliance: OHS Act and Regulations, Construction Regulations, NEMA, National Road Traffic Act, Basic Conditions of Employment Act, COIDA, and listed Eskom procedures (32-37, 32-136, 240-62196227, 32-95, 32-727, 32-418, 240-62946386, 32-520, Plant Safety Regulations).
• Section 37(2) agreement required between Eskom and contractor.
• No hazardous work by children (Child Labour).
• Construction professional registration: Construction Manager (CR 8(1)) must be SACPCMP registered; Construction Supervisor (CR 8(7)) requires legal liability, supervisory course, HIRA, OHS Act, COID, incident investigation; Health and Safety Practitioner/Officer requires full SACPCMP registration or National Diploma in safety management.
• SHE policy aligned to Eskom SHEQ Policy (32-727).
• Costing for SHE must be included in project pricing.
• Statutory appointments per OHS Act and Construction Regulations.
• Compliance with Eskom Life-saving Rules (240-62196227).
• Substance abuse programme per Eskom procedure 32-37; zero alcohol/drug tolerance; ad hoc testing.
• Contractor organisational structure: principal contractor organogram and appointed contractor organogram required.
• Risk assessments per procedure 32-520: baseline, issue-based, and daily pre-task assessments by competent person.
• Safe work procedures/method statements for all identified hazards.
• Construction site management: site establishment, vehicle safety, housekeeping, signage, tools/equipment, ladders, fire equipment, flammable liquids, first aid.
• SHE communication: statutory and non-statutory H&S committees, agendas, minutes, toolbox talks/pre-job meetings.
• SHE training: general induction, site-specific induction, visitor induction, task-specific training.
• PPE: risk-based issue, regular inspection, training in use/care/maintenance.
• Incident investigation: timely reporting, competent investigators, contractor involvement in appointed contractor investigations.
• Emergency management plan required.
• Non-conformance and compliance management.
• SHE file: maintained on site, consolidated handover to Eskom project manager on completion (including drawings, designs, material lists, appointed contractor list, agreements, work type).
• Work stoppage authority for unsafe conditions.
• Hours of work: normal, night work, overtime provisions.
• Contract sign-off required.
• Auditing: principal contractor SHE plan approval, Eskom SHE audits, contractor audits.
• Smoking and cellular phone restrictions.
• Occupational health: medical surveillance programme, pre-employment/periodic/exit medicals by registered occupational health practitioner; fitness for work at heights.
• Working at heights: fall protection plan, compliance with procedure 32-418.
• Environmental management: adherence to Environmental Management Plan where applicable, duty of care to environment.

Quality management references:

• Department of Labour (Inspection and Enforcement Services – Provincial office) is the first point of contact for procedure requirements, non-conformances, corrective actions, audits, and inspection schedules; Eskom project manager is the second point.
• Relevant inspection reports must be maintained.
• Substance abuse: zero permissible alcohol/drug level; compliance with Eskom procedure 32-37 (Life-saving Rule 4: BE SOBER); ad hoc alcohol testing of anyone entering Eskom premises; contractors must conduct alcohol testing of their own employees; test records treated as confidential and filed in employee personal files.

Bidders must make detailed provision for the cost of safety and health measures throughout the project (costing for SHE within the project).

Valid Letter of Good Standing from the Compensation Commissioner (COIDA) required before commencement and on renewal; principal contractor must also provide letters for all appointed contractors.

Mandatory compliance:

• CSD registration (implied for Eskom tenders).
• Valid tax compliance status (SARS PIN).
• Compensation Commissioner registration: valid Letter of Good Standing (COIDA) for principal contractor and all appointed contractors.
• Construction Manager (CR 8(1)): SACPCMP registration.
• Construction Supervisor (CR 8(7)): legal liability, supervisory safety course, HIRA, OHS Act/regulations, COID, incident investigation training.
• Health and Safety Practitioner/Officer: full SACPCMP registration or National Diploma in safety management (or equivalent).
• Incident/accident investigator (GAR 9(2)): RCAT and incident investigation training.
• Section 37(2) agreement with Eskom.
• Compliance with OHS Act, Construction Regulations, NEMA, National Road Traffic Act, Basic Conditions of Employment Act, and all referenced Eskom procedures and standards.
• Substance abuse programme aligned to Eskom procedure 32-37 (Life-saving Rule 4: BE SOBER).
• Medical surveillance programme with pre-employment, periodic, and exit medicals by registered occupational health practitioner.
• Environmental duty of care per NEMA and Eskom requirements.
• SHE file compilation and handover.
• No specific B-BBEE level, CIDB grade, or CSD requirement stated in this document; refer to main tender pack.

Comprehensive health and safety specification covering:

• Legal compliance: OHS Act, Construction Regulations, NEMA, National Road Traffic Act, Basic Conditions of Employment Act, COIDA, and Eskom procedures (32-37, 32-136, 240-62196227, 32-95, 32-727, 32-418, 240-62946386, 32-520, Plant Safety Regulations).
• Section 37(2) agreement; prohibition of child labour.
• Construction professional registration requirements (SACPCMP for Construction Manager; specified training for Supervisor, H&S Practitioner, Investigators).
• SHE policy alignment; costing for SHE; statutory appointments; Life-saving Rules compliance.
• Substance abuse programme (zero tolerance, ad hoc testing).
• Contractor organisational structure (organograms).
• Risk assessments (baseline, issue-based, daily pre-task) per procedure 32-520.
• Safe work procedures/method statements.
• Construction site management: establishment, vehicle safety, housekeeping, signage, tools, ladders, fire equipment, flammable liquids, first aid.
• SHE communication: statutory/non-statutory H&S committees, agendas, minutes, toolbox talks/pre-job meetings.
• SHE training: induction (general, site-specific, visitor), task-specific training.
• PPE: risk-based issue, inspection, training.
• Incident investigation: timely reporting, competent investigators, contractor involvement.
• Emergency management.
• Non-conformance and compliance management.
• SHE file: on-site maintenance, consolidated handover on completion.
• Work stoppage for unsafe conditions.
• Hours of work: normal, night work, overtime.
• Auditing: principal contractor SHE plan approval, Eskom SHE audits, contractor audits.
• Smoking and cellular phone restrictions.
• Occupational health: medical surveillance, pre-employment/periodic/exit medicals by registered occupational health practitioner, fitness for work at heights.
• Working at heights: fall protection plan, procedure 32-418 compliance.
• Environmental management: duty of care, Environmental Management Plan adherence.
• Contract sign-off; omissions clause.

Environmental duty of care: any person causing or potentially causing significant pollution or degradation must take reasonable measures to prevent, minimise, and rectify such harm. An Environmental Management Plan must be prepared to enhance positive impacts and limit/prevent negative impacts during the project life-cycle, preferably forming part of Eskom's Environmental Management System. Compliance with NEMA and applicable municipal by-laws/environmental legislation is required. Where an Environmental Management Plan is in place, contractors must adhere to it and ensure minimal environmental damage.

Competency requirements for key appointments:

• OHS Act Section 16(1) Employer: OHS Act/regulations, COIDA, incident investigation, HIRA, legal liability; declaration letter required if no 16(2) appointee.
• OHS Act Section 16(2) Employer/Project Manager: OHS Act/regulations, COIDA, construction manager regulations, incident investigation, HIRA, legal liability.
• Construction Regulation 8(1) Construction Manager: SACPCMP registration, OHS Act/regulations, COIDA, incident investigation, HIRA, legal liability (if applicable).
• Construction Regulation 8(7) Construction Supervisor: legal liability, supervisory safety course, HIRA, OHS Act/regulations, COID, incident investigation (if applicable).
• GAR 9(2) Incident/Accident Investigator: RCAT and incident investigation training.
• OHS Act Section 8(e) Site Supervisor: legal liability, supervisory safety course, HIRA, OHS Act/regulations, COID, incident investigation.
• Health and Safety Practitioner/Officer (full-time): full SACPCMP registration (if applicable) OR National Diploma in safety management or equivalent qualification.

eTendering system is a web based system that allows suppliers bidding for various tenders advertised

on Tender Bulletin system to “upload” their tender documents. Currently the tenderers or suppliers

submit tender documents at various Eskom tender offices. eTendering system replaces the manual or

physical submission of tender documents at various Eskom tender offices. eTendering system in a

nutshell is an electronic box where tender documents can be “dropped” or “uploaded”. Suppliers will

be required to register their details before they can be granted access to the eTendering system. An

OTP (one time pin) will be sent to both their cell phone and email address.

Quick and direct access is also available by using the following links:

• TenderBulletin Public website:

https://tenderbulletin.eskom.co.za or https://tenderbulletin.ntcsa.co.za - this is used by

members of the public, to view and access Eskom published tenders. eTendering hyperlink

will be found on this site. Members of the public may follow prompt instructions once they

have clicked on the eTendering link (https://eTendering.eskom.co.za). This link will allow

them to upload the required tender documentation.

• eTendering website Public website:

https://eTendering.eskom.co.za - this is used by members of the public, to view information

about published tenders and submit their tender documents.

• N.B: Members of the public would need to have a CSD number to gain access to

eTendering system.

2 Problems

A channel of communication has been created in case users of the system experiences a problem

with the system. In a case users come across some difficulties in using Tender bulletin, eTendering

and OpenText systems they need to contact the buyer responsible for the published tender.

3 What’s New

A new functionality of submitting tender documents via an ebox or online application called

eTendering instead of a physical submission.

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Eskom eTendering System

User Manual

4 Getting Started

To gain access to eTendering portal

1. Open your web browser.

2. Type Eskom Tender Bulletin or Eskom Tender Bulletin (ntcsa.co.za) or Eskom E-Tendering

3. Click on the eTendering icon “ ”

4. eTendering system login page will be displayed:

Fig 1

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Eskom eTendering System

User Manual

Registration Form Steps to follow

• Complete all the fields.
• Contact number must start with a

Plus prefix e.g +27

• Ensure that you also fill in the

captcha picture to validate that you

are not a robot.

• Once all columns have been filled

click on register button.

• Pop-up message will be displayed asking

the registerer to verify the email sent to

the provided email address.

• If the email does not come through,

click on “Resend Verification Email”

button.

• email to be resent,
• Once you have received the email click

on link provided on

the email.

• Then you will be directed back to

etendering site with a login screen

displayed, now complete the login

with your verified email address

and password.

Fig1.1

© 2025 Eskom of 19

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Eskom eTendering System

User Manual

Fig2a.

Fig2b.

Fig3.

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Proprietary and Confidential

Eskom eTendering System

User Manual

5. Once the email is verified, login using your registered email address and password then the

OTP page will be displayed.

6. OTP sent to the registered cell phone number and email address.

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Eskom eTendering System

User Manual

7. Insert the otp number then click “Verify OTP” button, to resend OTP click on “Resend OTP”

button.

8. Landing page once OTP is verified.

9. Select the preferred “Ref No”

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Eskom eTendering System

User Manual

10. A page with the preferred Tender information is displayed before tender documentation can

be submitted.

11. Click on “Create New Submission” button to submit required Tender documents.

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Eskom eTendering System

User Manual

12. Landing page once clicked on “Create New Submission” button. Take note of the

mentioned disclaimers.

13. To submit tender documents, click on “Add file” button.

14. Upload required tender documents by:

15. Giving the file a name

16. Select the listed file type e.g.: Technical, commercial, finance and etc

17. Choose the file you need to upload

18. Then click on “Upload” button, Fig5.

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Eskom eTendering System

User Manual

Fig4.

Fig5.

15. Once clicked on “Upload” button, this page will be displayed with the submitted document(s).

Continue to submit all the required documents under the correct category, i.e.: Technical

should be selected if technical documentation is uploaded and etc. Verify all required

documents are uploaded before making ‘Final Submission’ by clicking on ‘Finalize

Submission’ button.

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16. Click on “Finalize Submission” button. A file size cannot exceed 500MB and a total size of

all uploaded files should not exceed 4GB.

17. Once “Finalize Submission” button is clicked the pop-up message confirming the submission

will pop-up.

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Eskom eTendering System

User Manual

18. Click on “Finalise and Close Submission” button to finalize the submission of documents.

If not, all documents were submitted or still wish to add or submit more documents, click on

“No, continue adding files” button.

19. Once the submission is finalised the page with all submitted documents will display with the

submission and closed time and date timestamp at the bottom.

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User Manual

20. To view submitted tenders, click on “My Submissions” menu option. All your individually

submitted tenders will be displayed.

If you want to view or verify the submitted documents, click on “View Submission” button.

21. Once the submission process is complete an email with be sent to the submitter with all

submitted documents on email, Fig6.This is the final step for the submitter or tenderer.

It is vital to save the email with the submission ID for future enquiry if need be.

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--------Originalmessage--------

From:Eskom E-Tender Document Submission 28 [email protected]

Date:Tue,23Aug2022,3:42pm

To:[email protected]

Subject: Response To Submitter

Eskom E-Tender Document Submission 28

Hi Monalisa

You have finalized a new submission with submission id:14 on tender

#MPKUS10086PS closing date : 2022-11-30 10:00:00.

Have started the submission from 2022-08-23 14:28:33 and finalized at 2022-

08-23 15:42:28

Tender Description:

Award for Provision of Office Cleaning and Janitorial Services at Kusile Power

Station Project

Files Submitted:

ID Original Name Title Size Type

38 Test7.pdf testingCom 33141 Commercial

40 Test1.pdf testingTech 33502 Technical

41 Test15.pdf testingFin 33141 Finance

Thanks,

Eskom E-Tender Document Submission 28 Automated Mail

© 2022 Eskom E-Tender Document Submission 28. All rights reserved.

NB: This Email and its contents are subject to the Eskom Holdings SOC Ltd

EMAIL LEGAL NOTICE which can be viewed at

http://www.eskom.co.za/Pages/Email_Legal_Spam_Disclaimer.aspx

Fig6.

5 Edit Registration

To edit already registered information such as Name, Organization, CSD and cell phone number

select “Edit Registration” on the drop down, Fig1. New window with information that needs to be

updated pop ups, Fig2. Click on “Update” button to update registration details.

Fig1.

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Fig2.

6 Log off Button

To logout, click “Log out” on the dropdown next to your name.

Fig1.

7 Password reset

To reset a forgotten password, click “Forgot your password” Fig1. and a new screen will

pop up to enter an alternative email where the new password will be sent Fig2.Confirmation

message will be sent to the user, Fig3.

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Fig1.

Fig2.

Fig3.

An email confirming password reset will be sent to the email provided.

Click on the link or “Reset Password” button to reset the password.

© 2025 Eskom of 19

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Fig4.

A new window will pop up to reset and confirm the new password, Fig5.Enter new

password and confirm then click on “Reset Password” button.

Fig5.

OTP window will pop up, type in the OTP sent to either the cell phone or email address.

Fig6.

OTP successfully goes through and lands on the below screen, password is successfully

reset.

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Fig7.

8 General

This system is compatible to most web browsers however we recommend Ms Edge.

The end.

© 2025 Eskom of 19

Tender closing date: 10:00 on 2022-11-30, as shown in the sample submission receipt (submission #MPKUS10086PS). Refer to the tender documents for the actual closing date for this specific tender.

For problems with the eTendering system, contact the buyer responsible for the published tender. [Source: system user guide only — no direct contact details provided.]

Submission is via the Eskom eTendering system (https://eTendering.eskom.co.za). Suppliers must be registered on the system and have a valid CSD number. Documents must be uploaded and finalised before the closing date/time — the finalised email confirmation is your proof of submission. Upload files individually up to 500MB each / 4GB total. Use Ms Edge for the best experience.

No evaluation criteria are stated in this source document — this is only the eTendering user guide.

No technical specifications are provided in this document; it is the eTendering supplier help manual, not the tender specification document. The actual technical specification and scope must be obtained from the tender documents on the eTendering portal.

To submit tender documents via the eTendering portal: register by completing all fields (contact number must start with +27, fill in captcha), verify email, login with verified email and password, enter OTP sent to cell phone and email, select the preferred tender reference number, click 'Create New Submission', add files by naming the file, selecting the file type (Technical, Commercial, Finance, etc.), choosing the file, and clicking 'Upload'. Continue uploading all required documents under correct categories, then click 'Finalize Submission'. File size cannot exceed 500MB and total size of all uploaded files should not exceed 4GB. Confirm finalization by clicking 'Finalise and Close Submission'. After submission, an email with all submitted documents and the submission ID is sent; save this email for future reference. To view submitted tenders, use 'My Submissions' menu option.

Registration on the eTendering system is required and a CSD number is required to gain access to the eTendering system.

A channel of communication has been created for users experiencing problems with the system. Users encountering difficulties with Tender bulletin, eTendering, or OpenText systems should contact the buyer responsible for the published tender.

For problems with the system, contact the buyer responsible for the published tender.

Project Title: Vulcan Substation. To provide professional services to investigate potential subsurface instability in the vicinity of the NTCSA.

NTCSA SOC Ltd: Megawatt Park, Maxwell Drive, Sunninghill ext.3, Sandton; P O Box 1091, Johannesburg 2000; Tel +27 11 800 ....; Fax +27 11 800 .... Notices deemed received: by hand on delivery date; by pre-paid registered post on 7th business day; by telefax when received in legible form. Parties may change domicilium with 30 business days written notice.

Bidders must be able to enter into a legally binding NDA with NTCSA SOC Ltd. The NDA requires that the receiving party's representatives (employees, agents, officers, directors, subsidiaries, associated companies, shareholders, advisers) agree to abide by the NDA terms. The NDA does not create a joint venture, partnership, or employment relationship. Bidders must not disclose confidential information without prior written consent. The NDA is governed by South African law.

Professional services to investigate potential subsurface instability in the vicinity of the NTCSA Vulcan Substation. Confidential Information includes all technical, commercial, financial, marketing information, strategies, operations, know-how, trade secrets, processes, machinery, designs, drawings, formulae, test data, equipment, notes, memoranda, methods, natural resources, technical specifications and data relating to the Project. Disclosure only to extent deemed necessary by Disclosing Party. Receiving Party may disclose to Representatives (employees, agents, officers, directors, subsidiaries, associated companies, shareholders, advisers) on need-to-know basis for Project purposes, provided they abide by Agreement terms. Receiving Party shall not use Confidential Information for any purpose other than the Project.

Bidders must be able to enter into a legally binding NDA with NTCSA SOC Ltd (Reg No 2021/539129/30). Agreement governed by South African law. No assignment without prior written consent, except NTCSA may cede rights to its departments or entities resulting from ESI restructuring. No publicity without prior written consent. Each party represents authority to enter agreement. Disclosing Party warrants disclosure won't breach other agreements or infringe third-party rights and indemnifies Receiving Party against such claims.

The Vulcan Transmission Substation in Emalahleni (Witbank), Mpumalanga, is located above historic bord-and-pillar coal mining areas with significant underground voids, unstable pillars, spontaneous combustion, and progressive subsidence causing sinkholes. Arnot Kendal 400kV Tower 227 sits on a mine pillar; sinkholes exist northwest of the substation. The area poses material risk to public safety and critical electricity infrastructure. The Employer requires a professionally registered Geologist (Contractor) to conduct comprehensive subsidence investigations at and around Vulcan Substation and adjacent areas to determine risk of failure to NTCSA infrastructure (substation and Tower 227), capture the extent of the phenomenon and impacts on other critical infrastructure, and compile a detailed report of findings and proposed mitigation solutions. The scope outlines minimum assessments using geotechnical investigations and non-invasive subsurface assessment methods. Applicable to Vulcan Substation and surrounding area (~17 ha area of interest).

Closing date and time: 2026-10-09 10:00 (from tender record). No mandatory briefing, site visit, or clarification deadlines are stated in the scope of works document.

No named SCM or technical contacts, emails, phones, or submission address are provided in the scope of works document. The document references NTCSA North East Grid, Geoscience/Real Estate Servitude & Land Management Department, and Environmental personnel from NTCSA for permit advice, but no individual contact details are given.

Submission method and address are not specified in the scope of works document. The closing date and time are provided in the tender record (2026-10-09 10:00). Returnable documents required with the bid: comprehensive technical report (digital PDF, shape files/CAD files, and 2 hard copies), thermal imagery of the study area, 2D geophysical profiles and 3D models, zonation map of areas of incipient instability, methane gas concentration mapping, extent of spontaneous combustion mapping, final report with recommendations highlighting risk mapping. Written consent from the Employer is required for any deviations from the scope of works.

The Contractor report: Assesses the impacted area by intrusive and non-intrusive methods; Consolidates all field information and produces a comprehensive technical report of findings; A thermal imagery of the study area to provide details of surface features that may have high emissivity (thermal hot spot); Provide 2D geophysical profiles and 3D models; Zonation map of areas of incipient instability; Methane gas concentration mapping; Extent of spontaneous combustion mapping; Provide all digital dataset in cad or other agreed geospatial or engineering format; Final report and recommendation highlighting risks mapping. All documentation to be submitted in digital (word-friendly *.pdf format, shape files /Cad files) and hardcopy formats (2 x copies). Written consent must be received from the Employer for any and all deviations from the works as outlined herein.

No evaluation criteria, scoring split, preference point system (80/20 or 90/10), or minimum qualifying thresholds are stated in the scope of works document. The document references ISO 9001 (2015) Quality Management System as a normative reference but does not define evaluation stages or scoring.

Scope: Investigate potential subsurface instability at Vulcan Substation (Emalahleni/Witbank, Mpumalanga) and adjacent areas, including Arnot Kendal 400kV Tower 227, located above historic bord-and-pillar coal mining voids with spontaneous combustion and sinkhole risks. Area of interest: approximately 17 ha (red boundary in Figure 2).

Required investigations:

• Site walkover of impacted areas to identify ground features, environmental factors, adjacent infrastructure, and safety considerations.
• Safe Work Procedure (SWP) produced and accepted by Employer before site works commence.
• Subsurface assessment by non-invasive methods:

a) Drone thermal imaging survey of complete substation perimeter and internal infrastructure; report thermal anomalies/hotspots with location, severity, implications.

b) 2D Electrical Resistivity Tomography (ERT) to identify electrical anomalies in soil indicating combustion sources.

c) Microgravity surveys to map density variations; low-density anomalies indicate combustible materials.

d) Multichannel Analysis of Surface Waves (MASW) to map velocity/density variations.

• Methane gas studies: compile/review historical methane data; validate/reconcile datasets; identify gas accumulation zones and high-risk areas; baseline and continuous monitoring in subsurface voids, boreholes, surface interfaces; assess migration pathways; evaluate explosion/asphyxiation risks to infrastructure and communities; recommend mitigation (controlled venting, gas drainage, monitoring protocols); produce land subsidence and methane emission risk assessment report; outline rehabilitation strategies.
• Rehabilitation strategy: assess feasibility of open-cast mining as rehabilitation intervention (technical/economic feasibility, environmental authorisation, highwall stability, geotechnical modelling, coal handling/extraction/commercial treatment).
• Geotechnical investigations: desk study (topographical/geological maps, aerial photos, existing geotechnical data, structure performance, groundwater, seismic data); underground services scanning; test pits (max 5 m depth, minimum 50 m x 50 m grid, profiled by registered Geotechnical Engineer/Engineering Geologist per Jennings et al. 1973, GPS coordinated WGS84, per SAICE Code of Practice 2007); DPSH testing between trial holes where bedrock depth uncertain or soils loose/soft; gravity survey per SANS 1936:2 covering area 100 m wider than development footprint; rotary core boreholes (3 m into bedrock below coal seam, with SPT N tests, undisturbed Shelby samples for collapse potential/expansiveness/heave, concrete plug after drilling); percussion boreholes (minimum 4 per hectare, to end of coal seam/refusal, 6 m into rock where shallow bedrock, into bedrock on gravity highs, 100 m or 6 m where de-watered, 15 m into rock if depth >15 m, 6 m into dolomite bedrock if applicable); laboratory testing per SANS 3001 (classification, compaction, CBR, DPSH, swelling pressure, free swell, specific gravity, heave, UCS, XRD/XRF, proximate analysis, petrography, gas analysis).

Deliverables: comprehensive technical report consolidating all field data; thermal imagery; 2D geophysical profiles and 3D models; zonation map of incipient instability; methane gas concentration mapping; spontaneous combustion extent mapping; all digital datasets in PDF, shape files/CAD; final report with risk mapping recommendations; 2 hard copies. All in digital (word-friendly PDF, shape files/CAD) and hardcopy (2 copies).

Investigation methodology:

1. Site walkover by Contractor and team/sub-contractors: identify ground features, environmental factors, adjacent/bisecting infrastructure, safety considerations for area stability.
2. Safe Work Procedure (SWP) produced and accepted by Employer before site works.
3. Subsurface assessment by non-invasive methods (approx. 17 ha AOI):

a) Drone thermal imaging survey of complete substation perimeter and internal infrastructure; report thermal anomalies/hotspots with location, severity, implications.

b) 2D Electrical Resistivity Tomography (ERT) to identify soil electrical anomalies indicating combustion sources.

c) Microgravity surveys to map subsurface density variations; low-density anomalies indicate combustible materials.

d) Multichannel Analysis of Surface Waves (MASW) to map surface wave velocity/density variations.

4. Methane gas studies: compile/review historical methane data (borehole readings, mine ventilation records, prior studies); validate/reconcile datasets; identify gas accumulation zones and high-risk areas; baseline and continuous monitoring in subsurface voids, boreholes, surface interfaces; assess migration pathways (fractures, faults, old workings); evaluate explosion/asphyxiation risks to infrastructure and communities; recommend mitigation (controlled venting, gas drainage, monitoring protocols); produce land subsidence and methane emission risk assessment report; outline rehabilitation strategies.
5. Rehabilitation strategy: assess feasibility of open-cast mining as rehabilitation intervention (technical/economic feasibility, environmental authorisation, highwall stability, geotechnical modelling, coal handling/extraction/commercial treatment).
6. Geotechnical investigations:

a) Desk study: topographical/geological maps, aerial photos, existing geotechnical data, structure performance, groundwater, seismic data.

b) Underground services scanning before investigation.

c) Test pits (max 5 m, min 50 m x 50 m grid, profiled by registered Geotechnical Engineer/Engineering Geologist per Jennings et al. 1973, GPS WGS84, per SAICE Code of Practice 2007).

d) DPSH testing between trial holes where bedrock depth uncertain or soils loose/soft.

e) Gravity survey per SANS 1936:2, area 100 m wider than footprint.

f) Rotary core boreholes: 3 m into bedrock below coal seam, SPT N tests, undisturbed Shelby samples for collapse potential/expansiveness/heave, concrete plug after drilling.

g) Percussion boreholes: min 4 per hectare, to end of coal seam/refusal; 6 m into rock where shallow bedrock; into bedrock on gravity highs; 100 m or 6 m where de-watered; 15 m into rock if depth >15 m; 6 m into dolomite bedrock if applicable.

h) Laboratory testing per SANS 3001: classification (grading, Atterberg limits, hydrometer), compaction (bulk density, MDD, OMC), Mod AASHTO, CBR, DPSH, swelling pressure, free swell, specific gravity, heave, UCS on rock, XRD/XRF, proximate analysis, petrography, gas analysis.

Quality management requirements: compliance with ISO 9001:2015 Quality Management System (normative reference). Test pits must be profiled by a registered Geotechnical Engineer or Engineering Geologist per latest South African practice (Jennings et al. 1973). Test pit positions coordinated with calibrated handheld GPS (WGS84). Excavation per SAICE Code of Practice 2007: Safety of Persons Working in Small Diameter Shafts. Gravity survey per SANS 1936:2. Laboratory testing per SANS 3001 methods.

No pricing format, bonds, guarantees, payment terms, or financial capacity thresholds are stated in the scope of works document.

Professional registration: Contractor must be a professionally registered Geologist with SACNASP (South African Council for Natural Scientific Professions). Site work must be undertaken by or supervised by a professionally registered Rock Engineer. Compliance with normative references: 240-47172520 (TRMSCAAC 6.0) Standard for Construction of Overhead Powerlines; SANS 10280 Overhead Power Lines; ISO 9001:2015 Quality Management; ISO 14001:2015 Environmental Management; NEMA (Act No. 107 of 1998); Occupational Health and Safety Act; 240-80605256 Access to Private Property Standard; 32-846 Eskom ORHVS. PPE required: dust mask, hard hat, gum boots, safety pants, safety top coat, apron, safety glasses, face shield, respirator, ear protection, safety harness, gloves, safety boots. Risk assessments with prevention/mitigation measures, emergency procedures, qualification/training requirements. Safety regulations for groundwork under power lines must be followed. Detailed safe work procedures per Construction Regulations. Environmental permits advised by NTCSA environmental personnel (work near active stream). General Environmental Authorisation (EA) and/or Water Use Licence Application (WULA) for any construction. Generic risk assessment matrix (Appendix A) references Construction Regulations 2014 (CR 8-30).

Health and safety requirements: mandatory PPE — dust mask, hard hat, gum boots, safety pants, safety top coat, apron, safety glasses, face shield, respirator, ear protection, safety harness, gloves, safety boots. Risk assessments with prevention/mitigation measures required. Emergency procedures required. Qualification and training requirements for personnel. Safety regulations for groundwork under power lines must be followed. Detailed safe work procedures (SWP) by contractor per Construction Regulations; SWP reviewed and accepted by Employer before site works. Site risks: high security risk; burning/smoking sinkholes; ground hot spots from underground coal combustion; space constraints and access for heavy equipment; detailed inspection of impacted towers required before work; general Environmental Authorisation (EA) and/or Water Use Licence Application (WULA) for construction. Generic risk assessment matrix (Appendix A) references Construction Regulations 2014 (CR 8-30) covering site management, risk assessment, fall prevention, temporary works, rope access, construction vehicles, electrical safety, fire/explosion, drowning, environmental compliance, stacking/storage, fire protection, employee facilities.

Environmental requirements: work in proximity to an active stream — NTCSA environmental personnel to advise on all necessary permits. General Environmental Authorisation (EA) and/or Water Use Licence Application (WULA) required for any construction. Compliance with National Environmental Management Act, 1998 (NEMA) and ISO 14001:2015 Environmental Management System (normative references). Rehabilitation strategy includes environmental authorisation and regulatory requirements for open-cast mining feasibility. Generic risk assessment includes non-compliance with environmental regulations, improper storage, waste disposal, fire causing environmental damage (CR 27, 29).

Contractor requirements: professionally registered Geologist (SACNASP). Provide adequate resources and equipment. Source and review historical undermining information, confirm validity. Ensure timely and adequate recording of materials and ground checks. Manage cost and schedule. Execute full scope. Manage sub-contracted works and outputs. Provide regular progress feedback. Ensure all site work undertaken by or supervised by professionally registered Rock Engineer. Ensure all parties familiarised with Employer safety requirements, mine safety requirements (where applicable), and OHSA before works. Comply with all applicable licences and authorisations. Obtain all necessary approvals and acceptances. Apply discretion in subsidence/sinkhole areas. Promptly inform Employer of notable ground condition changes. Notify Employer immediately of impedance or ruptured services. Ensure work near live lines in NTCSA servitude supervised by Authorised Person (Employer provides). Maintain equipment height/width clearances per Employer/Authorised Person. Ensure equipment earthed to Employer satisfaction (per 240-47172520 Annexure C) overseen by Authorised Person. Implement ground truthing, structure position feasibility, viable foundation systems, ground rehabilitation. No fieldworks to trigger further ground instability (e.g., spontaneous combustion).

No evaluation criteria, scoring methodology, preference point system, or minimum qualifying scores are defined in the scope of works document. The document references ISO 9001:2015 as a normative quality management standard but does not link it to bid evaluation.

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OHS Tender Returnables required — all must be completed, signed and submitted with the tender:

• Annexure B: Acknowledgement of Eskom's OHS legal and other requirements form, fully signed by the tenderer.
• Baseline OHS Risk Assessment (BRA) with methodology used and Risk Rating Matrix.
• Health and Safety Plan addressing project-specific OHS risks and aligned with the health and safety specification.
• Detailed costing for Health and Safety management, broken down by scope of work (not a lump sum).
• Valid Letter of Good Standing (COIDA or equivalent).
• OHS policy signed by the CEO, complying with OHS Act Section 7.
• OHS Competency certificates for the following: Incident Management/Investigation Training; First Aider Level 2; Hazard Identification & Risk Assessment (HIRA); Firefighting; Working at Heights (US 229998) if applicable; Legal Liability for Project Supervisor (including OHS related training); Legal Liability (OHSA) Training for company CEO/MD/16.2 Appointee.

OHS evaluation for this high-risk tender uses a pass/fail returnable checklist. Each returnable is assessed as Yes, No or Not Applicable. Mandatory items include: completed Annexure B; Baseline OHS Risk Assessment with methodology and Risk Rating Matrix; Health and Safety Plan aligned to project risks and specification; detailed OHS costing (not lump sum); valid COIDA Letter of Good Standing; CEO-signed OHS policy per OHS Act Section 7; and all required competency certificates (Incident Management/Investigation Training, First Aider Level 2, HIRA, Firefighting, Working at Heights US 229998 if applicable, Legal Liability for Project Supervisor, Legal Liability OHSA Training for CEO/MD/16.2 Appointee). A recommendation of Recommended or Not Recommended is made by the Eskom OHS Representative.

Scope of work: Vulcan Substation Sinkhole Investigation Project — professional services to investigate potential subsurface instability in the vicinity of the NTCSA Vulcan Substation. The OHS deliverables required are specific to this scope: Baseline OHS Risk Assessment with methodology and Risk Rating Matrix; Health and Safety Plan addressing project-specific OHS risks and aligned with the health and safety specification; and OHS competency certificates relevant to the scope, risks and OHS plan.

Required OHS competency certificates (considering scope of work, risks and OHS plan):

• Incident Management/Investigation Training.
• First Aider Level 2.
• Hazard Identification & Risk Assessment (HIRA).
• Firefighting.
• Working at Heights (US 229998) if applicable.
• Legal Liability for Project Supervisor (including OHS related training).
• Legal Liability (OHSA) Training for company CEO/MD/16.2 Appointee.

Detailed costing for Health and Safety management must be submitted, broken down by scope of work/service to be performed (not provided as a lump sum). The scope of work and risk assessment may serve as a guideline for the costing.

B-BBEE Minimum Level: 2 (from tender record).

Mandatory OHS compliance documents:

• Valid Letter of Good Standing (COIDA or equivalent).
• OHS policy signed by CEO complying with OHS Act Section 7.
• OHS Competency certificates: Incident Management/Investigation Training; First Aider Level 2; Hazard Identification & Risk Assessment (HIRA); Firefighting; Working at Heights (US 229998) if applicable; Legal Liability for Project Supervisor (including OHS related training); Legal Liability (OHSA) Training for company CEO/MD/16.2 Appointee.
• Completed Annexure B: Acknowledgement of Eskom's OHS legal and other requirements form.

This document is the Technical Evaluation Strategy for the Vulcan Underground Fires tender (Unique Identifier: 240-xxx, Revision 0). It establishes the evaluation framework for tenders responding to the request for professional services to investigate potential subsurface instability near the NTCSA Vulcan Substation (scope document 240-98155775). The strategy defines the Technical Evaluation Team (TET), their roles and responsibilities, mandatory and qualitative evaluation criteria, scoring methodology, and acceptable/unacceptable risks, exceptions, and conditions. It applies to Eskom Transmission: Substation Engineering and North East Grid. The document is governed by the Tender Engineering Evaluation Procedure (240-48929482) and references normative standards including SANS 1200, OHS Act Construction Regulations 2014, and SANS 1936.

Closing date: 9 October 2026 at 10:00 (from tender record).

No compulsory briefing session, site visit, or clarification deadline is mentioned in this evaluation strategy document. Bidders must consult the main tender document (240-98155775) for any briefing or site visit requirements.

No SCM or technical contact details, emails, phones, or submission address are provided in this evaluation strategy document. Refer to the main tender document (240-98155775) for enquiry channels.

Submission method and address are not stated in this evaluation strategy document. Bidders must refer to the main tender document (reference 240-98155775) for submission channel, format, closing time, and venue.

Returnable documents required with the bid:

• Technical proposal and construction method statement for Vulcan Substation Sinkhole Rehabilitation addressing all scope in document 240-98155775.
• Completed Bill of Quantities (BOQ) issued with the scope and specification document 240-98155775.
• Copy of professional registration certificates with ECSA and/or SACNASP for geotechnical engineering, geohydrology, or engineering geology, plus copies of degrees/diplomas for support technical staff in civil engineering, geology, or geohydrology.
• Reference letters (not appointment letters or project lists alone) evidencing completion of a minimum of 3–4 geotechnical investigation projects of similar scope to 240-98155775.
• Technical proposal detailing the execution method for the scope based on 240-98155775.
• Testimonials or completion certificates for completed projects showing company name, project description, dates, contract value, and contact person with details.
• Project programme including SHE file compilation by consultant and auditing by Eskom, and mobilisation/establishment of contractors and subcontractors.
• CVs of key personnel: registered geotechnical engineer/registered engineering geologist (15% of personnel weighting) and engineering geologist or geotechnical engineer (5% of personnel weighting).
• An undertaking that identified resources will not be changed after contract award.

Disqualification risks:

• A "NO" response to any mandatory evaluation criterion results in immediate disqualification.
• Failure to submit any of the above returnables.
• Submission after the closing time (not specified in this document).

Returnable documents required (as per mandatory and qualitative criteria):

1. Technical proposal and construction method statement for Vulcan Substation Sinkhole Rehabilitation addressing all scope in 240-98155775.
2. Completed BOQ issued with scope document 240-98155775.
3. Copy of professional registration certificates with ECSA/SACNASP for geotechnical engineering/geohydrology/engineering geology, plus degrees/diplomas for support staff.
4. Reference letters evidencing 3–4 completed geotechnical investigation projects of similar scope (appointment letters or project lists without reference letters not accepted).
5. Technical proposal detailing execution method based on 240-98155775.
6. Testimonials or completion certificates for similar projects with company name, project description, dates, contract value, and contactable references.
7. Project programme including SHE file compilation by consultant and auditing by Eskom, and mobilisation/establishment of contractors and subcontractors.
8. CVs of key personnel: registered geotechnical engineer/registered engineering geologist, and engineering geologist or geotechnical engineer.
9. Undertaking that identified resources will not be changed after contract award.

Standard SBD/MBD forms are not listed in this evaluation strategy; they will be specified in the main tender pack.

Evaluation follows a two-stage gatekeeper and weighted scoring approach per the Tender Engineering Evaluation Procedure (240-48929482).

Stage 1 — Mandatory gatekeepers (all must be met; a single "NO" disqualifies):

1. Design proposal and method statement addressing the full scope in 240-98155775.
2. Professional registration with ECSA/SACNASP for geotechnical engineering/geohydrology/engineering geology; support staff must hold relevant degrees/diplomas.
3. Completed BOQ issued with 240-98155775.
4. Evidence of 3–4 completed geotechnical investigation projects of similar scope, supported by reference letters (appointment letters or lists without reference letters are not accepted).

Stage 2 — Qualitative technical scoring (minimum 70% weighted final score required):

• Scoring scale: 5 = 100% (Compliant, no foreseen risks), 4 = 80% (Compliant with acceptable qualifications/risks/exceptions/conditions), 2 = 40% (Non-compliant/unacceptable risks/exceptions/conditions), 0 = 0% (Totally deficient/non-responsive). Scores 1 and 3 are not used.

Weighted criteria (total 100%):

• 6.1.1 Technical proposal and execution method (40%): assessed on ability to deliver service far in excess of minimum requirements (5), clearly above minimum (4), barely adequate (2), or less than minimum/irrelevant (0).
• 6.1.2 Company background and experience on similar geotechnical investigation projects (30%): more than 5 similar projects (5), 5 projects (4), 3–4 projects (2), 0 projects (0). Testimonials/completion certificates required with company name, project description, dates, contract value, and contactable references.
• 6.1.3 Project programme (10%): must include SHE file compilation by consultant and auditing by Eskom, and mobilisation/establishment of contractors and subcontractors. Scored on same 5/4/2/0 scale.
• 6.1.4 CVs of key personnel (20%): lead engineer/lead engineering geologist must be a registered geo-professional with 10+ years post-registration experience in geotechnical investigations and reporting/Dolomitic Stability investigations (5 = Level 4 Expert); 5+ years experience (4 = Level 3); registered geo-professional only (3 = 60%); totally deficient (0). A geotechnical engineer and engineering geologist (SACNASP member) must be assigned; only one needs to be a registered geo-professional. CVs split: registered geotechnical engineer/registered engineering geologist (15% of the 20%), engineering geologist or geotechnical engineer (5% of the 20%).

Notes to tenderers:

• Resources identified may not be changed after award.
• Key personnel CVs must show experience comparable to the works specified.
• No information offered = no points scored.

Scope of work at Vulcan Substation (per evaluation strategy and referenced scope document 240-98155775):

1. Study the existing Dolomitic Stability Investigation (DSI) for Vulcan Substation and related site visit reports.
2. Develop a comprehensive method statement for detailed underground fires investigation, including:

• Safe working procedures for working in and around sinkholes.
• Appointment of a geo-professional Level 4 to oversee sinkhole rehabilitation work.

3. Re-establishment of the perimeter fence.
4. Liaison with relevant authorities and compliance with applicable legislation.

Normative references governing the work:

• Tender Technical Evaluation Procedure (240-48929482).
• Eskom Procurement and Supply Management Procedure (32-1034).
• SANS 1200: Standard Specification for Civil Engineering Construction.
• OHS Act, 1993: Construction Regulations, 2014.
• SANS 1936 Parts 1–4 and National Environmental Management Act (legislative compliance).

Key technical requirements:

• SHE file compilation by consultant and auditing by Eskom.
• Mobilisation and establishment of contractors and subcontractors.
• Concrete drainage channel construction as part of sinkhole rehabilitation.
• Safe working procedures for sinkhole environments.
• Geo-professional Level 4 oversight mandatory.

Required methodology and approach:

• Bidders must submit a comprehensive method statement detailing procedures for the detailed underground fires investigation.
• The method statement must cover safe working procedures for sinkhole environments and the appointment of a geo-professional Level 4 for oversight.
• The approach must address sinkhole rehabilitation and concrete drainage channel construction.
• Bidders must demonstrate how they will execute the full scope per document 240-98155775.
• Project programme must include SHE file compilation/auditing and contractor/subcontractor mobilisation.
• Liaison with relevant authorities and legislative compliance is required.
• An undertaking that identified key resources will not be changed after contract award is mandatory.

Experience and qualification requirements:

• Mandatory: Evidence of 3–4 completed geotechnical investigation projects of similar scope to 240-98155775, supported by reference letters (appointment letters or project lists without reference letters are not accepted).
• Qualitative (30% weighting): More than 5 similar projects scores 100%; 5 projects scores 80%; 3–4 projects scores 40%; 0 projects scores 0%. Testimonials or completion certificates required with company name, project description, dates, contract value, and contactable references.
• Key personnel (20% weighting):

• Lead engineer or lead engineering geologist must be a registered geo-professional (ECSA/SACNASP) with 10+ years post-registration experience in geotechnical investigations and reporting/Dolomitic Stability investigations (Level 4 Expert = 100%).

• 5+ years post-registration experience = Level 3 experienced geo-professional (80%).

• Registered geo-professional only = 60%.

• Totally deficient = 0%.

• A geotechnical engineer and engineering geologist (SACNASP member) must be assigned; only one needs to be a registered geo-professional.

• CVs required for registered geotechnical engineer/registered engineering geologist (15% of personnel weighting) and engineering geologist or geotechnical engineer (5% of personnel weighting).

• Support technical staff must hold degrees/diplomas in civil engineering, geology, or geohydrology.
• Professional registration with ECSA/SACNASP for geotechnical engineering, geohydrology, or engineering geology is a mandatory gatekeeper.
• Key personnel CVs must show experience comparable to the works specified.
• Undertaking required that identified resources will not be changed after award.

Quality management requirements:

• Compliance with SANS 1200: Standard Specification for Civil Engineering Construction.
• Compliance with SANS 1936 Parts 1–4 and National Environmental Management Act.
• Professional registration with ECSA and/or SACNASP serves as quality assurance for key personnel.
• Support technical staff must hold relevant degrees/diplomas.
• Geo-professional Level 4 oversight of sinkhole rehabilitation work.
• SHE file compilation by consultant and auditing by Eskom.
• Evaluation scoring methodology ensures technical quality through weighted criteria and minimum 70% threshold.