SOW - Water Tank Integration Booster Pump System Installation _ 30 Gemsbok.pdf

U N C L A S S I F I E D

Scope of Work:

Water Tank Integration & Booster Pump System Installation

30 Gemsbok Street, Koedoespoort Industrial, Pretoria, Prepared by: Robert Tshabalala, Residential Maintenance Supervisor

U.S Mission South Africa, Pretoria, 100 Totius Street, Groenkloof, 0027

(+27) 012 452 2188 / (+27) 079 111 6868

Date: June 2026

U N C L A S S I F I E D P a g e 1

SCOPE OF WORK

Project: Water Tank Integration & Booster Pump System Installation

Location: 30 Gemsbok Street, Koedoespoort Industrial, Pretoria, 0186

Project Overview

The purpose of this project is to connect the existing water storage tank to the warehouse water distribution system. The installation will ensure water circulation throughout the building to prevent stagnation and water quality deterioration, and to provide a reliable water supply during municipal water outages.

1. Water Tank Connection

• Connect the existing water storage tank to the building's internal water distribution system.

• Install inlet and outlet pipework as required to integrate the tank into the system.

• Install a ball valve on the inlet pipe and a ball valve on the outlet pipe to allow isolation of the tank for maintenance purposes.

• Install a bypass valve arrangement to allow the backup water system to be isolated and bypassed without interrupting water supply to the building.

2. Three-Stage Industrial Water Filtration System

• Supply and install a three-stage industrial water filtration system, comprising:

o Stage 1: Sediment pre-filter (to remove suspended solids, sand, and particulates) o Stage 2: Activated carbon filter (to remove chlorine, odours, and organic compounds) o Stage 3: Fine filtration/polishing filter (to ensure water quality suitable for building use)

• All filter housings, fittings, and associated pipework to be supplied and installed by the contractor.

• Filter housings to be rated for the operating pressures of the system.

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3. Booster Pump System

• Supply and install two (2) DAB Esybox Max booster pumps mounted on the DAB

Esytwin platform.

• The Esytwin platform shall allow both pumps to operate in tandem or independently, providing redundancy and variable flow capacity.

• Electrical connections to the pump system to be carried out by a registered electrician in accordance with applicable standards.

• The contractor shall commission the pump system and confirm correct operation, pressure settings, and flow rates upon completion.

4. Pipework & Fittings

• Supply and install all pipework, fittings, connectors, and supports required to complete the installation.

• All pipework to be appropriately sized for the system's flow and pressure requirements.

• All joints and connections to be pressure-tested upon completion.

5. Bypass System

• Install a valve arrangement to enable the backup water system (tank and pumps) to be fully bypassed, allowing direct municipal supply to the building when the backup system is not required or is undergoing maintenance.

• Bypass valves to be clearly labeled for ease of operation.

6. Commissioning & Testing

• The contractor shall commission the complete system upon installation.

• Pressure testing of all pipework and connections shall be conducted and documented.

• The contractor shall demonstrate the operation of the system to the CO's representative, including normal operation, bypass mode, and filter maintenance procedures.

• A commissioning report shall be submitted to the client upon project completion.

U N C L A S S I F I E D P a g e 3

7. Applicable SANS Standards

The contractor shall carry out all work in accordance with the latest editions of the following

South African National Standards (SANS):

SANS Code Description

SANS

10252-1

Water supply installations for buildings – Part 1: Water supply installations for buildings

SANS

10254

The installation, maintenance, replacement and repair of fixed electric storage water heating systems

SANS

10400-P

National Building Regulations – Part P: Drainage

SANS

10400-W

National Building Regulations – Part W: Fire Protection (where applicable to water systems)

SANS 241-1 Drinking water – Part 1: Microbiological, physical, aesthetic, and chemical determinands

SANS 1200 Standardized Specification for Civil Engineering Construction (applicable sections for pipework and civil works)

SANS

10142-1

The wiring of premises – Part 1: Low-voltage installations (for electrical connections to pump system)

SANS

10086-1

The installation, maintenance and management of pumping systems

Note: The contractor is responsible for ensuring compliance with all applicable local municipal bylaws and regulations governing water installations in the Tshwane Metropolitan Municipality area.

U N C L A S S I F I E D P a g e 4

8. Contractor Responsibilities

• Supply all materials, equipment, tools, and labour required to complete the works.

• Ensure all work is carried out by suitably qualified and registered tradespeople (plumbers registered with the Institute of Plumbing South Africa (IPSA) or equivalent).

• Obtain all necessary permits and approvals prior to commencement of work.

• Ensure the work site is kept clean, safe, and compliant with applicable health and safety regulations under the Occupational Health and Safety Act (OHSA), Act 85 of 1993, and the Construction Regulations 2014.

• Remove all waste materials and debris from site upon completion.

• Provide the COR with all manufacturer warranties, manuals, and documentation for installed equipment.

9. Exclusions

Unless explicitly stated otherwise, the following are excluded from this scope of work:

• Structural or civil works beyond what is necessary for pipe supports and equipment mounting.

• Replacement or repair of the existing water storage tank.

• Municipal connection upgrades or works outside the property boundary.

• Ongoing maintenance of the installed system (unless a separate maintenance agreement is concluded).

10. Deliverables

Upon completion, the contractor shall provide:

1. As-built drawings of the installed system.

2. Pressure test certificates.

3. Commissioning report.

4. Equipment warranties and manuals.

5. Compliance certificate from a registered plumber.

U N C L A S S I F I E D P a g e 5

6. Warranty

The Contractor shall warrant all workmanship and materials for a period to be agreed upon in the contract.

11. Safety & Health

All contractors and subcontractors performing duties on behalf of the U.S. Government at U.S.

Government-held sites are required to do so safely and healthfully. This is in accordance with

South African law via the Occupational Health and Safety Act 85 of 1993 and American regulations via the U.S. Army Corps of Engineers’ EM 385-1-1: Safety and Occupational

Health Requirements (accessible at https://www.publications.usace.army.mil/USACE-

Publications/Engineer-Manuals/) and U.S. Mission South Africa’s Mission Policy P-070B-

24, Safety Requirements for Contractors & Subcontractors. The U.S. Embassy Pretoria Post

Occupational Safety & Health Officer (POSHO) must ensure strict compliance with current safety regulations as well as the overall health and safety of personnel, avoiding any damage or injury. The Contractor must accept all legal requirements and/or regulations currently enforced concerning safety for staff, technicians, other workers, and the public whom the work may directly or indirectly impact.

Contractors must submit a detailed, site-specific safety plan for POSHO review as part their tender documents, addressing hazard mitigation and control methods. The safety plan, which must always be accessible at the U.S. Government-held work site, must address the following requirements:

• General Safety

• Barricading and Warning Signs

• Personal Protective Equipment

• Safety Inspections

• Hand & Power Tool Safety

• Emergency Response

• High-Risk Work

• Electrical Safety

• Fall Protection

• Scaffolding

• Hazard Communication & Chemical Substances Safety

• Lifting Loads, Use of Cranes, or Elevating Work Platforms Safety

• Welding & Open Flame Operation Safety

• Confined Spaces Safety

The following items are generally included in the site-specific safety plan:

• Contractor appointment letter

• Agreement between Client and Contractor https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.publications.usace.army.mil%2FUSACE-Publications%2FEngineer-Manuals%2F&data=05%7C02%7CTshabalalaRE%40state.gov%7C07d2c12b12c34c79d03a08dd5bd0bb51%7C66cf50745afe48d1a691a12b2121f44b%7C0%7C0%7C638767674229541180%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=YgvgMBdsC1SKMGqUuyf2XXS9A%2BCakPwcTRBkjOhhsjc%3D&reserved=0 https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.publications.usace.army.mil%2FUSACE-Publications%2FEngineer-Manuals%2F&data=05%7C02%7CTshabalalaRE%40state.gov%7C07d2c12b12c34c79d03a08dd5bd0bb51%7C66cf50745afe48d1a691a12b2121f44b%7C0%7C0%7C638767674229541180%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=YgvgMBdsC1SKMGqUuyf2XXS9A%2BCakPwcTRBkjOhhsjc%3D&reserved=0

U N C L A S S I F I E D P a g e 6

• Notification of construction work (if applicable)

• Copy of the Occupational Health and Safety Act 85 of 1993

• Occupational Health and Safety Policy (company-specific)

• Occupational Health and Safety Management Plan (company-specific)

• Letter of Good Standing

• Material Safety Data Sheets (for all chemicals and hazardous materials, where applicable)

• Tax clearance certificate

• Risk assessments

• Safe work procedure (site-specific)

• Fall protection plan (site-specific, where applicable)

• Legal appointments (e.g., CEO, Risk Assessor, First Aider) [must include proof of training]

• Incident reporting procedures

• Emergency preparation documents

• First aid documents

• List of employees (site-specific) [must include proof of training and issued protective equipment, where applicable]

• Log of incident reports and accidents

Inquiries concerning contractor safety requirements at U.S. Government work sites can be directed to the U.S. Embassy Pretoria Safety Office at PretoriaPOSHO@state.gov.

12. Point Of Contact (Poc)

• Primary POC: Robert E Tshabalala

• Phone: 010 452 2188 / 079 111 6868

• Email: TshabalalaRE@state.gov

• Alternate POC: Zander Smuts

• Phone: 079 111 7150

• Email: SmutsZ@state.gov

This scope of work is subject to site inspection and may be revised following a joint site visit between the contractor and the CO's representative.

End of SOW_______________________________________________________ mailto:PretoriaPOSHO@state.gov mailto:SmutsZ@state.gov