Removal and management of floating plants and debris in the hartbeespoort dam (RFB/MW/SS-08/2026-27/01)

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Tender Queries: Mr. Rabelani Mulaudzi, Telephone: 014 597 4636, E-mail: [email protected]. Technical Queries: Mr. Tshepo Molebatsi, Telephone: 012 381 6600, E-mail: [email protected].

All documentation must be in English. Bids must be signed by a duly authorised person, with a certified copy of the Board resolution. Bidders must check page numbers for missing or duplicated pages. The bid response must include a valid tax clearance certificate or SARS PIN. Copies of valid and current certificates from professional organisations/bodies must be included. Bids must be submitted with an electronic copy in the form of a USB. The Bill of Quantities/Pricing schedule must be filled completely with permanent ink, preferably black ink. Late bids will not be accepted. Bidders not registered on the Central Supplier Database (CSD) at the time of bidding will not be considered. Compulsory briefing session attendance is required. POPIA consent form must be signed and completed.

Evaluation is in stages. Stage 1A (Administrative): CSD report, signed SBDs, certificate of signatory authority, JV agreement and Power of Attorney if applicable, tax PIN/SARS tax certificate. Stage 1B (Mandatory): compulsory briefing attendance, USB submission, POPIA consent, valid COIDA certificate, completed Bill of Quantities, valid land lease agreement/Hartbeespoort Dam Accessing Permit, General Authorization Permit (DWS/DFFE), Public Liability Insurance, Waste Management License, Waste Transportation License, and evidence of owning or leasing two (2) of each machinery (Tipper, Harvester, Excavator, TLB, Barge, Tractor, small outboard boat) in good operational condition. Stage 2 (Functionality, 100 points, minimum 70%): 1) Relevant experience (projects completed for removal of floating plants and debris) – 0, 5, 10, or 15 points based on number of projects; 2) Qualifications and experience of key personnel – Project Manager with Bachelor of Science Degree in Environmental Science/Environmental Management (NQF Level 7) – 5 points for proof, plus experience points (0, 3, or 5); 3) Specific plant and equipment – points based on number of ownership/lease agreements (0-1, 2, or 3+ of each); 4) Methodology and programme of works – 0, 5, or 10 points based on addressing 5 key principles; 5) Job creation for local inhabitants in Madibeng Local Municipality – 0, 5, 10, or 20 points based on number of jobs. Stage 3 (80/20 preference): Price 80 points, Specific Goals 20 points. Specific goals: Black ownership equity 5, Women equity 3, Youth equity 2, Disability 2, Promotion of small businesses (Medium 2, Small 3, Micro 4, Other 0), Locality within 100km 3, Military Veterans 1. Total 20 points.

The scope includes identification, containment, physical and mechanical removal, transportation, and beneficiation of alien invasive aquatic plants (water hyacinth and common salvinia) from Hartbeespoort Dam. Maintain invasive plant surface coverage at less than 10% in winter and less than 20% in summer. Remove annual and perennial herbaceous invasive plants (e.g., Persicaria senegalensis) upon instruction by DWS. Obtain and maintain all statutory permits, licences, and authorisations (NEMA, NEMBA, National Water Act, OHS, SAMSA). PPE required: Life Jackets, Waders, Gum Boots, Rubber gloves, reflective acid-resistant work suits, sun hats. Tools: modified nets, machetes, hooks, rakes, wheelbarrows. Install noodle/floating booms or traps of approximately 1-2 km where necessary. Inspect, maintain, repair, and clean litter nets, floating booms, and debris interception structures. Monitor invasive plant coverage, biomass removed, environmental conditions, and operational performance; submit regular progress and technical reports. Develop technical designs and operational plans for floating containment systems. Utilise environmental monitoring tools. Maintain a project risk assessment and risk register. Beneficiate harvested biomass through compost, mulch, bioenergy, or other approved end uses. Excavator and TLB buckets must be porous for dewatering. Harvester must remove both water hyacinth, salvinia, and debris.

NB: Attach SAQA accreditation for Foreign Qualifications equivalent to NQF Level 7

No Proof of Qualifications attached 0 points

Proof of Qualifications attached 5 points 10

II. Project Manager’s Experience.

Contract: manual and mechanical removal of water hyacinth, salvinia, floating

Aquatic vegetation and debris

A. Preliminary

And general

Item description unit qty rate (r) amount (r)

Mobilisation of personnel, plant and

A.1 Sum 1

equipment

Establishment of site, storage areas

A.2 Sum 1

and access arrangements

Demobilisation of personnel, plant and

A.3 Sum 1

equipment

Submission of Health and Safety File,

A.4 Risk Assessments and Compliance Sum 1

Documentation

Contractor's time-related obligations in

respect of the Occupational Health and

A.5 Month 3

Safety Act and Construction

Regulations

Cost of medical certificates and medical

A.6 Sum 1

surveillance

(80/20 system)

Black people ownership 5 Central Supplier Database (CSD) report

equity

Women equity 3 Central Supplier Database (CSD) report

Youth equity 2 Central Supplier Database (CSD) report

Disability 2 Medical certificate or (CSD)

Promotion of small 4 Signed Financial Statements

businesses

Medium- 2 Points

Small- 3 Points

Micro- 4 Points

Other- 0 Points

Locality 3 Proof of address (Municipal rates, invoice

or statement of account, tribal authority Within 100km radius of

letter or Lease agreement accompanied by where goods/service is

municipal rates invoice/statement) required

Military Veterans (MVA) 1 MVA force number/CSD

Total 20

(Note to organs of state: Where either the 90/10 or 80/20 preference point system is applicable,

corresponding points must also be indicated as such.

Note to tenderers: The tenderer must indicate how they claim points for each preference point

system.)

Medium- 2 Points

Small- 3 Points

Micro- 4 Points

Other- 0 Points

Locality 3 Proof of address (Municipal rates, invoice

or statement of account, tribal authority Within 100km radius of where

letter or Lease agreement accompanied by goods/service is required

municipal rates invoice/statement)

Military Veterans (MVA) 1 MVA force number/CSD

Total 20

NB: For JV, consortium and partnerships, agreement should be attached for points allocations.

or service provider, the bidder must notify MW Procurement within five (5) days after

publication of the RFP.

1.2 Bidders shall provide full and accurate answers to the questions posed in this RFP

document and must substantiate their response to all questions, including full details on

how their proposal/solution will address specific functional/ technical requirements; failure

to substantiate will disqualify the bidder as non-responsive. All documents as indicated

should be supplied as part of the bid response.

1.3 Failure to comply with Mandatory Requirements will disqualify the bidder as non-

responsive

2. Background

2.1 Magalies Water is a state-owned business enterprise that operates within the South

Pricing Schedule

Contract: manual and mechanical removal of water hyacinth, salvinia, floating

their number of local labourers to be

employed (General labourers for

manual removal of floating plant and

debris). For example, if a bidder

B.1.1 Days

employs twenty-one (21) local

labourers (21 labourers x 66 days)

=1386. Bidder to then indicate quantity

of 1386 and his rates to determine the

total amount.

B.2 Team leader / Supervisor Days 66

Provision of hand tools (rakes, hooks,

B.3 Sum 1

ropes, nets, machetes, etc.)

Pricing Schedule includes sections: A. Preliminary and General (mobilisation, site establishment, demobilisation, health and safety file, risk assessments, compliance documentation, contractor's time-related obligations for 3 months, medical certificates and surveillance); B. Manual Removal Operations (general labourers – quantity based on number of labourers x 66 days, e.g., 21 labourers x 66 days = 1386; team leader/supervisor 66 days; hand tools; PPE; small workboard boats); C. Mechanical Removal Operations (aquatic weed harvester 2 units for 66 days = 132 days, barge/workboat 132 days, excavator with fine-meshed bucket 132 days, tractor and trailer 132 days, transportation of plant and equipment); D. Collection, Loading and Transportation (collection and loading of harvested biomass 3,300 tons, transportation to approved stockpile/disposal facility 6,600 km, establishment and management of temporary stockpile area); E. Disposal and Beneficiation (disposal of floating plants and debris 3,300 tons, beneficiation/composting/processing 3,300 tons, disposal of non-organic debris 100 tons); F. Project Management and Reporting (contract management and project supervision 3 months, environmental compliance reporting 3 months, progress reporting and close-out documentation). Summary includes subtotal, add 10% contingencies, total excluding VAT, add 15% VAT, total tender price including VAT.

Valid tax clearance certificate or SARS PIN number. TCS PIN may be made via e-filing through SARS website. CSD number must be provided. CSD report submission required. Joint Venture Agreement and Power of Attorney, if applicable. Valid COIDA Certificate. Bill of Quantities/Pricing schedule must be filled completely with permanent ink, preferably black ink. Valid land lease agreement/Hartbeespoort Dam Accessing Permit. General Authorization Permit (DWS/DFFE) for harvesting, handling, transporting, processing, beneficiation of floating plants and recycling/disposal of debris. Public Liability Insurance. Waste Management License. Waste Transportation License. Bidders must own or provide evidence of leasing two (2) of each machinery (Tipper, Harvester, Excavator, TLB, Barge, Tractor, small outboard boat) in good operational condition, with proof of ownership (tax invoices) or verifiable letter of intent to lease supported by proof of ownership from lessor. B-BBEE Minimum Level: 7. Points allocation: 90 points (note: this appears inconsistent with the 80/20 system stated elsewhere; the document states 80/20 preference point system).

0300

Tender Queries: Technical Queries:

Contact Name: Mr. Rabelani Mulaudzi Contact Name: Mr. Tshepo Molebatsi

Telephone: 014 597 4636 Telephone: 012 381 6600

E-MAIL ADDRESS [email protected]. E-MAIL ADDRESS [email protected]

• That he/she is notified of the purpose and reason for the collection and processing of such

information in so far as it relates to the tendering and evaluation process,

• That he/she consents and authorizes Magalies Water to undertake the collection, processing,

and further processing of the bidder ’s personal information and any information supplied to

called for in this RFP.

8.3 The bidder agrees that the offer contained in its bid shall remain binding upon them and

receptive for acceptance by MW during the bid validity period indicated in the RFP

and

8.4 calculated from the bid closing hour and date such offer and its acceptance shall

be subject to the terms and conditions contained in this RFP document read with the bid.

8.5 The bidder furthermore confirms that he/she has satisfied himself/herself as to the

correctness and validity of his/her bid response; that the price(s) and rate(s) quoted

cover all the work/item(s) specified in the bid response documents; and that the price(s)

and rate(s) cover all his/her obligations under a resulting contract for the services

contemplated in this RFP; and that he/she accepts that any mistakes regarding price(s)

and calculations will be at his/her risk.

8.6 The successful bidder accepts full responsibility for the proper execution and fulfillment

of all obligations and conditions devolving on supplier under the supply agreement

and SLA to be concluded with MW, as the principal(s) liable for the due fulfillment of

such contract.

8.7 The bidder accepts that all costs incurred in the preparation, presentation and

demonstration of the solution offered, shall be for the account of the bidder. All

supporting documentation and manuals submitted with its bid will become MW property

unless otherwise stated by the bidder/s at the time of submission.

Please attach Certified Copies of Vehicle Registration Certificates (Tipper, Excavator,

Barge, Tractor and TLB).

➢ Zero (0) to one (1) ownership/ lease agreements of (Tipper, Harvester,

Excavator, TLB, Barge, Tractor, small outboard boat)

➢ Two (2) ownership/ lease agreements of each (Tipper, Harvester,

Excavator, TLB, Barge, Tractor, small outboard boat)

➢ Three (3) or more ownership/ lease agreements of each (Tipper,

Harvester, Excavator, TLB, Barge, Tractor, small outboard boat)

customers.

2.2 Magalies Water is a Schedule 3B public entity established in terms of the Public Finance

Management Act (PFMA) and in terms of the Water Services Act (the Act),

which stipulates the mandate of water boards. These are summarized as follows:

a) To provide bulk water services as the primary activity in terms of Section 29 of the Water

Services Act ;

b) And other activities in terms of Section 30 of Water Services Act ;

2.3 Magalies Water is actively involved in project management and implementation of projects

on behalf of Municipalities and the Department of Water and Sanitation (as implementing

agents). Magalies Water often requires the services of capable service providers to play

the role of consulting engineer on behalf of Magalies Water in projects requiring

construction, refurbishment, evaluation, and or capital projects implementation.

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of regrowth, rehabilitation of disturbed areas, compliance with environmental and occupational health

and safety requirements, and coordination with biological control and catchment management

initiatives to achieve long-term control of invasive aquatic vegetation and improve the ecological

health of Hartbeespoort Dam.

3.3 Expectation from the Service Provider

The Service Provider (SP) shall provide a comprehensive service for the physical and mechanical

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removal, management, monitoring, and beneficiation of alien invasive aquatic plants at

• Provide effective project management to ensure the successful implementation of all project

objectives and performance targets.

• Remove floating alien invasive plants using a hybrid approach comprising both manual and

mechanical removal methods, supported by a robust methodology that addresses seasonal

variations in plant growth.

• Deploy appropriate mechanical equipment and technologies to maintain invasive plant

surface coverage at less than 10% in winter and less than 20% in the summer season of the

dam surface, as verified through remote sensing and other approved monitoring techniques.

• Upon instruction by the Department of Water and Sanitation (DWS), remove annual and

perennial herbaceous invasive plants, including species such as Persicaria senegalensis,

from shallow areas and shorelines, subject to environmental assessments and applicable

wetland management requirements.

• Obtain and maintain all statutory permits, licences, and authorisations required for the

harvesting, handling, processing, storage, transportation, beneficiation, and disposal of

harvested biomass, while complying with all applicable legislation, including the National

Environmental Management Act (NEMA), the National Environmental Management:

Biodiversity Act (NEMBA), the National Water Act, Occupational Health and Safety

legislation, and South African Maritime Safety Authority (SAMSA) requirements.

• PPE required for employees includes Life Jackets, Waders, Gum Boots, Rubber gloves,

reflective acid-resistant work suits and sun hats. It is the Service Provider’s responsibility to

ensure that torn or worn-off PPE is replaced timeously.

• Tools of trade such as modified nets for manual labour, machetes, hooks, rakes and

wheelbarrows must be available for manual removal.

• Ensure that all operations are conducted in an environmentally responsible manner and do

not contribute to pollution or degradation of the dam.

• Equipment such as noodle/floating booms or traps of approximately (1- 2) km must be

installed where deemed necessary to enhance removal of the floating plant and/or debris.

• Inspect, maintain, repair, and clean litter nets, floating booms, and other debris interception

structures located at the dam inlets and strategic locations, including the collection,

transportation, and lawful disposal or beneficiation of captured litter and debris.

• Monitor invasive plant coverage, biomass removed, environmental conditions, and

operational performance, and submit regular progress and technical reports to the Project

A.4 Risk Assessments and Compliance Sum 1

respect of the Occupational Health and

A.5 Month 3

B.4 Sum 1

Equipment (PPE)

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B.5 Small workboard Boats Sum 1

A.7 Sum 1

Compliance and Monitoring

Remove all site establishment on

A.8 Sum 1

completion

R - Total Carried Forward To Summary

B. Manual

Removal

Operations

Item description unit qty rate (r) amount (r)

Bidders to indicate their rates based on

the number of local labourers to be

B.1 employed (General labourers for

manual removal of floating plant and

debris).

Bidders to indicate their rates based on

their number of local labourers to be

employed (General labourers for

manual removal of floating plant and

debris). For example, if a bidder

B.1.1 Days

employs twenty-one (21) local

labourers (21 labourers x 66 days)

=1386. Bidder to then indicate quantity

of 1386 and his rates to determine the

total amount.

B.2 Team leader / Supervisor Days 66

Provision of hand tools (rakes, hooks,

B.3 Sum 1

ropes, nets, machetes, etc.)

Provision of Personal Protective

B.4 Sum 1

Equipment (PPE)

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B.5 Small workboard Boats Sum 1

R Total Carried Forward To Summary

C. Mechanical

Removal

Operations

Item description unit qty rate (r) amount (r)

Aquatic weed harvester including

C.1 operator, fuel and maintenance (2 units Days 132

for 66 days)

Barge/workboat including operator, fuel

C.2 Days 132

and maintenance (2 units for 66 days)

Excavator fitted with fine-meshed

C.3 bucket including operator, fuel and Days 132

maintenance (2 units for 66 days)

Tractor and trailer including operator,

C.4 fuel and maintenance (2 units for 66 Days 132

days)

Transportation of plant and equipment

C.5 Sum 1

to and from site

R - Total Carried Forward To Summary

D. Collection,

Loading and

Transportation

Item description unit qty rate (r) amount (r)

Collection and loading of harvested R

D.1 Ton 3 300

biomass (50 tons per day) -

Transportation of harvested biomass to

R

D.2 approved stockpile/disposal facility (10 km 6600

Loads per day at 10km radius)

Establishment and management of R

D.3 Sum 1

temporary stockpile area -

R

Total Carried Forward To Summary -

E. Disposal and

Beneficiation

Item description unit qty rate (r) amount (r)

Disposal of floating plants and debris at R

E.1 Ton 3 300

approved disposal facility -

Beneficiation, composting, processing R

E.2 Ton 3 300

or reuse of biomass -

Disposal of non-organic debris and R

E.3 Ton 100

waste materials -

R

Total Carried Forward To Summary -

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F. Project

Management

And reporting

Item description unit qty rate (r) amount (r)

Contract management and project R

F.1 Month 3

supervision -

R

F.2 Environmental compliance reporting Month 3

Progress reporting, meetings and R

F.3 Sum 1

close-out documentation -

R

Total Carried Forward To Summary

Summary of sections

Description amount (r)

Section A: Preliminary and General

Section B: Manual Removal Operations

Section C: Mechanical Removal Operations

Section D: Collection, Loading and Transportation

Section E: Disposal and Beneficiation

Section F: Project Management and Reporting

Subtotal a

Add 10% Contingencies

Total excluding VAT

Add 15% VAT

Total tender price including VAT

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Science/Environmental Management (NQF Level 7).

The methodology for removal of alien invasive aquatic species must include the following 10

(5) key principles: (1) Understanding of challenges associated with physical removal and

regulatory constraints associated with removal of aquatic alien invasive species (2)

Removal sequencing and the program of works (3) environmental protection and control

measures. (4) Transportation of removed hyacinth to beneficiation site (5) Beneficiation

from the removed biomass

No methodology and programme of works attached 0

The bidder’s methodology and programme of works address One (1) to Three 5

(3) key principles.

The bidder’s methodology and programme of works address Four (4) or more 10

key principles.

Africa, approximately 35 km northwest of Johannesburg and 20 km west of Pretoria. Completed in

1923, the dam is fed mainly by the Crocodile and Magalies rivers and serves as an important source

of water for irrigation, domestic use, tourism, and recreation. It has a surface area of approximately

20.6 km2 (2,063 hectares), a storage capacity of about 195 million cubic metres, and a catchment

area of approximately 4,120 km2. Over the years, the dam has experienced severe infestations of

alien invasive aquatic plants, particularly water hyacinth (Pontederia crassipes) and common salvinia

(Salvinia minima), which have at times covered more than half of the water surface. These

infestations, driven by excessive nutrient inputs from wastewater, agricultural runoff, and urban

pollution, have contributed to poor water quality, eutrophication, harmful algal blooms, reduced

biodiversity, and disruptions to irrigation, fishing, boating, and tourism. As a result, Hartbeespoort

transportation, and beneficiation of alien invasive aquatic plants, primarily water hyacinth (Pontederia

crassipes) and common salvinia (Salvinia minima), from Hartbeespoort Dam. The work entails

surveying and mapping infested areas, deploying containment booms, harvesting invasive plants

using manual labour and mechanical equipment (such as aquatic weed harvesters, boats, and

excavators), and transporting the biomass to designated processing sites. The removed plant

material will be beneficiated through environmentally sustainable value-added processes, including

compost production, organic mulch, bioenergy generation, livestock feed (where appropriate), or

other approved commercial applications, thereby reducing waste and promoting a circular economy.

• Develop and implement technical designs and operational plans for floating containment

systems, including litter traps, floating booms, nets, and other suitable infrastructure, based

on the type, density, and distribution of invasive vegetation.

• Utilise reliable environmental monitoring tools and technologies to support planning,

operational decision-making, and adaptive management of floating invasive plants.

• Develop, maintain, and regularly update a project risk assessment and risk register, including

mitigation measures, to support efficient implementation and continuous improvement of

removal operations. Risk management outcomes shall be documented and incorporated into

project reporting.

• Beneficiate harvested alien invasive plant biomass through environmentally sustainable

value-added processes, such as compost production, mulch, bioenergy, or other approved

end uses, with the objective of minimising waste and supporting circular economy principles.

• The Excavator and TLB buckets must be porous for the purpose of permitting the dewatering

of Hyacinth and Salvinia when removed from the dam. The Harvester must remove both

water Hyacinth, Salvinia and debris.

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maintenance, environmental compliance, monitoring, reporting, and biomass beneficiation to

achieve sustainable management of Hartbeespoort Dam.

A.6 Sum 1

surveillance

Environmental Management

A.7 Sum 1

E.3 Ton 100

waste materials -

F.1 Month 3

supervision -

R

F.2 Environmental compliance reporting Month 3

Bids must be signed by a person duly authorised by a resolution of the Board of Directors, with a certified copy submitted. The bidder is responsible for all costs incurred in preparing and submitting the bid. The bidder must check page numbers for missing or duplicated pages; no liability accepted for missing or duplicated pages. The bid response must include a valid tax clearance certificate or SARS PIN. Copies of valid and current certificates from professional organisations/bodies must be included. Magalies Water reserves the right to disqualify bidders who submit incomplete, fraudulent, or inaccurate information, receive information through fraudulent means, fail to comply with mandatory requirements, fail to attend compulsory briefing sessions, or submit late bids. Bidders not registered on the Central Supplier Database (CSD) at the time of bidding will not be considered. The bidder agrees that the offer remains binding during the bid validity period. The successful bidder accepts full responsibility for proper execution and fulfilment of all obligations. All costs incurred in preparation, presentation, and demonstration of the solution are for the bidder's account. All supporting documentation and manuals submitted become Magalies Water property unless otherwise stated.