Re-Advertisement: Proposals are hereby invited for the appointment of a turnkey contractor for the upgrade of civil engineering services at Lenz Military Base, Johannesburg. The Scope of Work entails Upgrades of Civil Engineering services such as Water Reticulation, Fire, Bulk Water Supply, Sewer Reticulation, Bulk sewer, Stormwater Management and three (3) Pump Stations as outlined below: 1. Water Reticulation: a) Assessment of Existing Infrastructure: Evaluate the current water reticulation system to determine the condition and capacity limitations. b) Design and Engineering Improvements: Develop engineering designs that incorporate modern materials and technologies to enhance efficiency. c) Pipe Replacement and Installation: Replace outdated pipes with Unplasticized Polyvinyl Chloride (uPVC) or high-density polyethylene (HDPE) as required or any other suitable pipe as may be recommended by the bidder. d) Flow Monitoring: Implement flow measurement devices to monitor usage and identify leaks. e) Quality Control: Ensure compliance with local standards for water quality throughout the distribution system. f) Upgrade all isolation valves, old water metres, and all other water related structures as required. g) Design, supply, and upgrade where applicable all fire water tanks, pumps, and associated piping & Fire Hydrants etc. 2. Secondary Main Water Supply: a) Infrastructure Assessment: Analyse the existing bulk / secondary main water supply system"s capabilities, including reservoir storages (Tanks), treatment facilities, and pumping stations. b) Capacity Expansion: Design and implement upgrades to increase the overall capacity to meet future demands. c) Storage Solutions: Evaluate and enhance water storage solutions, including additional tanks or reservoirs. d) Pumping Upgrades: Upgrade existing pumping infrastructure to improve efficiency and reliability, including the installation of variable frequency drives (VFDs) for energy savings where possible. 3. Sewer Reticulation: a) Network Evaluation: Assess the existing sewer reticulation system to identify bottlenecks and areas needing improvement. b) Pipe Rehabilitation: Use trenchless technology where possible for rehabilitation of existing sewer pipes where applicable, minimising surface disruption. c) New Installations: Install new sewer lines as per the updated design, ensuring adequate capacity for future growth. 4. Secondary Sewer Main: a) Treatment Plant Analysis: Review and optimize the existing sewer treatment facilities to handle increased volumes and enhance treatment processes. b) Infrastructure Design: Upgrade infrastructure to facilitate efficient transport of sewage to treatment plants, including pumping stations if necessary. c) Regulatory Compliance: Ensure upgrades comply with environmental and health regulations, including effluent quality standards. 5. Three Pump Stations: a) Site Assessment: Conduct a site assessment for the current conditions of the three (3) existing sewer pump stations. b) Design and Specifications: Prepare detailed designs for the pump stations, including mechanical, electrical, and structural components. c) Upgrades and Installation: Oversee the upgrades and installation of the pump stations, ensuring they are equipped with modern automation and monitoring systems. d) Testing and Commissioning: Perform comprehensive testing and commissioning of each pump station before being brought online 6. Stormwater Management: a) Assessment of Current Systems: Assess existing stormwater management systems to determine current capacity and functioning. b) Design Improvements: Create new designs for stormwater management features such as detention basins, swales, and permeable pavements. c) Retention Solutions: Implement green infrastructure solutions to enhance stormwater retention and reduce runoff impact. d) Clean existing channels and clear trees and rubble and strip & seal joints. (Oferta №125467561es)