Construction, operations and maintenance of polokwane regional wastewater treatment works (prwwtw) – phase 2b

Returnable Documents: (specific documents not listed in extracted text).

Closing date: 17 July 2026 at 10H00. Compulsory site briefing: 02 June 2026 at 10H00, New Peter Mokaba Stadium Complex, Executive Lounge, 1st Floor, Polokwane. Clarification requests must be submitted no later than 5 working days before closing time.

Supply Chain Enquiries: Mr. Tiro Pilusa, Email: [email protected], Phone: 015 290 2212/2693. Technical Enquiries: Mr. Ramaramela Sebaka, Email: [email protected], Phone: 015 290 2335. Employer’s Agent (Principal Agent): Dr. Talent Diotrefe Banda, ZAKUMI Consulting Engineers (Pty) Ltd, Physical Address: ZCE House, 21 Compensatie Street, CBD, Polokwane, Limpopo, 0699, Postal Address: PO Box 3154, Polokwane, 0700, Phone: (015) 291 1776, Fax: (015) 291 1993, Email: [email protected].

Submit bids in a sealed envelope marked 'PM18 - 25/26: Construction, Operations and Maintenance of The Polokwane Regional Wastewater Treatment Works (PRWWTW): Phase 2B' to the bid box at Polokwane Municipality, Civic Centre, corner Bodenstein and Landdros Mare Street, Ground Floor, Polokwane, Limpopo, 0699 by 10H00 on 17 July 2026. Late bids will not be accepted. Bids must be completed in black ink on official forms (not re-typed). Include a soft copy (USB) with the submission. Bids remain valid for 90 days after closing. Disqualification risks: pencil-completed documents, late submission, influence attempts, unsatisfactory past performance, state employees, bid defaulters, SCM system abuse, incomplete/inaccurate certificates, or unpaid municipal rates/taxes in arrears for >3 months.

Evaluation follows a 90/10 preference point system: 90 points for price, 10 points for specific goals (e.g., B-BBEE, local content). Stages: Phase 1 – Administrative and eligibility compliance (mandatory). Phase 2 – Functionality criteria (minimum 80 points required). Phase 3 – Price and preference points. Bids are evaluated under the Preferential Procurement Policy Framework Act and 2022 Regulations. Non-responsive bids (e.g., missing returnable schedules, CIDB grading, or tax compliance) are disqualified. Refer to Annexure A for detailed criteria.

Scope: Construction, operations, and maintenance of the Polokwane Regional Wastewater Treatment Works (PRWWTW): Phase 2B. Contract governed by FIDIC Yellow Book 2017. Key deliverables: Civil, mechanical, electrical, and C&I design; wastewater treatment plant operations; compliance with environmental and OHS standards. Required team: Civil Design Engineer (15+ years’ experience, Pr. Eng/Pr. Tech Eng, ECSA-registered), Mechanical Design Engineer (15+ years’ experience, Pr. Eng/Pr. Tech Eng, ECSA-registered), Electrical Design Engineer (15+ years’ experience, Pr. Eng/Pr. Tech Eng, ECSA-registered), WWTW Operations Manager (8+ years’ WWTW experience, BSc/BEng/BTech in relevant field, regulatory compliance experience). Site coordinates: S 23° 47' 42.42", E 029° 27' 19.27".

Submit an original, unconditional, irrevocable bid guarantee (form in Returnable Schedule C1.3). Failure to provide this renders the bid non-responsive. Pricing: Fixed rates in ZAR for the contract duration, inclusive of all duties/taxes (except VAT, which must be shown separately). Payment terms: Per payment certificates, variations, and final accounts as per contract. Alternative designs permitted if original design is fully priced and submitted in the same envelope with a comparison schedule. VAT is excluded from base pricing but must be itemized. Prices must align with FIDIC Yellow Book 2017 conditions.

Mandatory: CIDB grading 9CE or higher (no PE status exceptions). Proof of CIDB grading required for tenderer and all subcontractors. CSD registration for all members and declared subcontractors (submit CSD Summary Report). Tax Compliance: Submit SARS TCS PIN or CSD number. Foreign suppliers must complete pre-award questionnaire (Part B:3). Joint ventures/consortia: Submit signed JV/Consortium Agreement, member organogram, proportional participation details, and board authorization letters. Each member must be CIDB-registered; lead partner must have grading no lower than one level below 9CE. B-BBEE: Minimum Level 7. Submit audited/reviewed financial statements for the past 3 years. All returnable schedules (T2.1) must be completed and signed. Compulsory site briefing attendance (02 June 2026). Professional registrations: ECSA (Pr. Eng/Pr. Tech Eng) for engineers; SACPCMP for construction managers. Foreign qualifications require SAQA verification.

Issued for Tender: August 2025. Refer to the official tender document for additional dates such as briefings or site visits.

Polokwane Municipality. Address: Cnr Landdros Mare & Bodenstein Streets, Polokwane, 0700; PO Box 111, Polokwane, 0700; PO Box 3154, Polokwane, Limpopo, 0699. Phone: +27 15 290 2000/1, +27 15 291 1176. Fax: +27 15 290 2218, +27 15 291 1993. Website: www.polokwane.gov.za

Returnable Documents: Not specified in the provided text. Refer to the official tender document for submission requirements.

Scope: Construction, operations, and maintenance of Polokwane Regional Wastewater Treatment Works (PRWWTW) Phase 2B. Key technical details:

• Screens: Apertures of 15mm, 6mm, 3mm, and 5mm with specified drive powers (e.g., 1.5kW, 1.1kW, 0.37kW).
• Valves: Various types including gate, globe, butterfly, check, and pinch valves. Materials and sizes to be finalized post-engineer approval.
• Pipes: Steel pipes must be anchored to walls/floors using puddle flanges or thrust collars. Pipe and valve sizes to be confirmed after equipment selection.
• Materials: Hydraulic screenings launder channels must be manufactured from 304 or 316 stainless steel. Grit launder channels must also meet this standard.
• Flow Rates: Specified for various components (e.g., sludge management plant: 200-450 m³/hr; grit classifiers: 400 kg/day; wash compactors: 6.0m³ storage volume).
• Equipment: Includes vortex degritters, blowers (0.625 m³/hr, 2.2kW), compressors, pumps (flow rates 45-833 m³/hr, heads 1.2-29.3m), axial pumps, and mechanical/chemical dosing systems.
• Civil Works: Civil contractor to provide pipe flanges, T-piece connection points, and structural supports for mechanical contractor.
• Mixing Systems: Velocity gradients of 80-100 1/sec for biological reactors; mixing volumes range from 13.0-5m³ to 562m³.
• Aeration: Fine bubble aeration system design (pipe size, valve placement, material) to be submitted by contractor for engineer approval. Oxygen requirements range from 1,140 to 4,320 kgO₂/day.
• Notes: All valve and pipe sizes, equipment selection, and anchor methods require engineer approval prior to installation.

Engineer: Zakumi Consulting. Phone: +27 (015) 000 0700 / +27 (015) 000 0699. Website: www.zce.co.za. Address: 1176 St., Polokwane, Limpopo, 0700.

Returnable Documents: Submit all required drawings, specifications, and supporting documents as per the tender drawings (e.g., PK278-CP-2-EW series) and specifications. Ensure clarity, accuracy, and full compliance with the provided technical details, dimensions, and installation methods.

Scope: Construction, operations, and maintenance of Polokwane Regional Wastewater Treatment Works (PRWWTW) Phase 2B. Key deliverables: Earthworks, pipeline installation (uPVC Class 9/6), structural works (tanks, chambers, buildings, fencing), roadworks, and wetland rehabilitation. Materials: Use approved materials such as galvanized steel, uPVC pipes, concrete (RC, Class 35/40 MPa), and protective coatings (e.g., Sikagard, EpoCem). Standards: Adhere to engineering drawings (PK278-CP-2-EW series) for dimensions, elevations, and installation. Site-specific: Follow floodline, boundary, and servitude demarcations. Environmental: Comply with wetland rehabilitation, erosion control, and safety standards.

B-BBEE Minimum Level: 1. Local content and transformation compliance required as per municipal and national regulations.

Consulting Engineer: T. Banda. Address: 21 Compensation Street, Polokwane, Limpopo, 0699. Postal: P.O. Box 3154, Polokwane, Limpopo, 0700. Website: www.zce.co.za. Phone: +27 15 291 1176. Fax: +27 15 291 1993.

Returnable Documents: None explicitly listed. Guidance: - Do not scale drawings; verify all dimensions on-site before manufacturing or ordering equipment. - Read all drawings and specifications in conjunction with each other. - Report any discrepancies or omissions to the consulting engineer immediately.

Scope: Construction of Polokwane Regional Wastewater Treatment Works (PRWWTW) Phase 2B, including sludge digesters, concrete structures, and associated mechanical/electrical works. Key Requirements: - Reinforcement: Must be properly positioned and maintained with correct concrete cover using approved patent spacers (not stones, offcut reinforcement, or bricks). Minimum concrete cover: 60mm for walls, floors, and slabs. Minimum splice length: 45x the lesser bar diameter. - Concrete: Exposed faces must be Class F3; all other faces Class F1. Unformed concrete faces: Class U2. Mechanically compacted using vibrators. Cast as continuous strips; construction joints required for stoppages >40 minutes. Exposed corners: 25x25mm chamfer. Non-shuttered surfaces: wood float finish. Curing: Continuous wetting for minimum 7 days (or as instructed by the resident engineer). - Earthworks: Over-excavate, rip, and scarify to founding level by 150mm, then recompact in-situ material to 93% Mod AASHTO. Backfill with select G5+ material (or better) in layers ≤150mm, compacted to 93% Mod AASHTO. Blinding layer: 50mm with 250μm polyurethane membrane on top. - Materials: uPVC, stainless steel, and reinforced concrete as specified. - Structural: Anti-corrosion measures, proper joint finishing, and smooth surfaces required. - Discrepancies: Must be resolved with the engineer. All dimensions must be verified on-site prior to work. Do not scale drawings.

B-BBEE Minimum Level: 1. Other compliance requirements (e.g., CSD, tax, CIDB, CIPC) are not explicitly stated in the provided text.