Kuressaare reoveepuhasti rekonstrueerimise projekteerimistööd

The contract timeline is as follows:

The contractor must sign the contract within 7 calendar days after receiving the contract signed by the contracting authority. The contractor is obligated to commence work on the working day immediately following the signing of the contract. The total duration for the contractor to hand over the project documentation is 8 months from the signing of the contract. An additional period for the designer's author supervision during the construction works extends until December 31, 2028.

Key milestones and phases include:

Within ten working days, the designer must submit a plan for initial data, studies, and approvals, along with a detailed design schedule. This detailed schedule should include initial data control, studies, a technical solution memo, 50% and 90% intermediate versions, the construction permit procedure, approvals, the final working project, and the submission of the estimated work volume list. SCADA design activities, views, functional descriptions, I/O, and the migration plan must be integrated into the same schedule as other project parts. The client should be given at least ten working days to review each substantial intermediate version, unless specified otherwise in the contract. The process for obtaining technical conditions and approvals for the construction permit should start sufficiently early, and the construction permit application must be submitted before the deadline for the final version of the design contract. The schedule is required to be updated at least once a month.

The core scope of work for this tender is the design of the reconstruction of the Kuressaare Wastewater Treatment Plant.

The core deliverables and scope include:

• General design tasks: Project management, analysis of the existing situation, initial data registration, necessary studies, measurements, inventories, and planning/execution of operational tests.
• Comprehensive balances: Process, hydraulic, mass, sludge, air, and energy balances for the entire plant, and verification of the combined effect of the measures.
• Permit procedures: Handling of construction permits, technical conditions, and approvals until the construction permit is issued.
• Measure 1: Complete design for replacing mixers and optimizing their operation.
• Measure 2: Complete design for the reconstruction of aeration systems.
• Measure 3: Complete design for replacing pumps and optimizing their control.
• Measure 4: Complete design for the reconstruction of sludge thickening and dewatering.
• Measure 5: Complete design for a unified automation, SCADA, and process control system.
• Energy audit monitoring plan: Complete design for its implementation.
• Budgeted work volumes: Preparation of a list of budgeted work volumes covering all project parts in XLSX format, including estimated unit prices and total costs.
• Construction tender support: Answering technical questions and providing technical evaluation of proposed solutions.
• Designer's supervision: Supervision over all project parts during the construction period, including automation and SCADA construction, testing, and commissioning, as well as checking project changes, equivalence, and execution documentation, and providing a final report.

The project's objective is to prepare a complete, coordinated, constructible, and construction-permit-approved working design with sufficient detail to organize a construction tender, allow for clear comparison of bids, and enable all planned construction works without requiring further basic or working designs. SCADA design and implementation are to occur concurrently with other reconstruction works. The designer is responsible for verifying existing conditions, dimensions, quantities, loads, operating points, electrical capacities, control interfaces, reliability, and projected energy efficiency from the energy audit.