Chemical and Mechanical Cleaning Services of Deep Production and Monitoring Boreholes: Table Mountain Group Aquifer Wellfields, City of Cape Town

195S/2025/26

2026-04-16 11:00

Tender Closed on: 2026-05-07 10:00

Borehole, Exploration and Geotechnical Drilling Services and Equipment, Cleaning and Dredging of Rivers, Dams, Harbours and other waterways, Cleaning Services, Industrial and Plant Cleaning Services, Mechanical Services, Tank, Pipeline, Drain, Grease Trap and Stormwater Cleaning

Cape Town, Western Cape

City of Cape Town

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Tender Number: 195S/2025/26
Department: City of Cape Town
Tender Type: Request for Bid(Open-Tender)
Province: Western Cape
Closing Date: Thursday, 07 May 2026 - 10:00
Place where goods, works or services are required: 12 Hertzog Boulevard - Cape Town CBD, Civic Centre, 2nd Floor (Concourse Level). - Cape Town - 8001
Special Conditions: - A non-refundable fee of R200 is required on collection of the tender document by cash or EFT. - A non-compulsory but strongly recommended clarification meeting will be held on 16 April 2026 at 11:00 at Steenbras TMG Offices (Steenbras wellfield), Coordinates: 34° 09' 34.55"S, 18° 56' 22.98"E.
ENQUIRIES:
Contact Person: SCM Team
Email: [email protected]
Telephone number: 021-000-0000
FAX Number: 000-000-0000
BRIEFING SESSION:
Is there a briefing session?: Yes Is it compulsory? NO
Briefing Date and Time: Thursday, 16 April 2026 - 11:00
Briefing Venue: Steenbras TMG Offices (Steenbras wellfield) MEETING : Coordinates: 34° 9'57.89"S, 18°55'41.02"E .

This tender is also available from www.etenders.gov.za


Tender Summary

Objectives

The tender aims to appoint a contractor responsible for the chemical and mechanical cleaning of deep production and monitoring boreholes within the Table Mountain Group Aquifer Wellfields in the City of Cape Town. The goal is to ensure high standards of borehole maintenance, including inspection, cleaning, and testing, to support the City’s water supply infrastructure.

Scope

The scope includes:

  • Cleaning and inspection of boreholes across various wellfields (Steenbras, Eikenhof-Nuweberg, Klipfontein).
  • Mechanical cleaning (jetting, brushing) and chemical cleaning of boreholes.
  • Monitoring boreholes with water quality sampling and level logging.
  • Coordination with other contractors (electrical/mechanical) for equipment removal and installation.
  • Performing borehole testing, rehabilitation, and sideward cleaning as per standards (SANS 10299-4, 10299-7).
  • Ad hoc maintenance based on instructions from the Client/Engineer.
  • Ensuring environmental protection, health and safety compliance, and reporting.

Technical Requirements

The technical requirements include:

  • Use of rigs capable of testing and cleaning boreholes with yields of 5-70 l/s at depths of 100 m or more.
  • Chemical cleaning with contact times up to 48 hours, achieving baseline conditions.
  • Mechanical cleaning using jetting and brushing techniques, with equipment capable of boreholes up to 18” (450 mm).
  • Inspection, testing, and de-establishment of equipment at boreholes.
  • Adherence to standards (SANS 10299-4, 10299-7) and environmental management plans.
  • Coordination with other contractors for equipment removal and installation.
  • Provision of qualified personnel, equipment, and supporting documentation.
  • Implementation of environmental and safety management measures, including waste, water, noise, and dust control.

Skills Requirements

The tenderer must demonstrate:

  • Relevant experience in borehole testing and cleaning, with references for projects over the past 15 years.
  • Proven capability in chemical and mechanical borehole rehabilitation, including boreholes up to 18” diameter.
  • Qualified key personnel, including a Borehole Cleaning Manager and Rig Operator, with CVs and project experience.
  • Availability of suitable equipment (testing rigs, cleaning rigs, inspection tools) with proof of ownership.
  • Ability to coordinate with other contractors and adhere to environmental, health, and safety standards.
  • Competence in environmental protection, safety procedures, and reporting requirements.
This summary is AI generated. Download the tender documents for all the information.

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