Construction of Giresun Wastewater Treatment Plant VOLUME 4 – Schedules of Payments 7 of 9 4.1.6 Schedule of Guarantees  4.1.6.1 Guarantee for Process Performance  4.1.6.2 Test on Completion 4.1.6.3 Test after Completion  The Tenderer shall complete and sign each of the Schedules of Commitments together with his Ten- der. These commitments shall be binding as explained below.  Commitments for Process Performance shall be verified during Test on Completion and Test after  Completion during the Defects Notification Period in accordance with procedures outlined in Volume  3. Once the pre-commissioning tests have been completed to the satisfaction of the Engineer, the Con- tractor shall operate and maintain the plant in accordance with the draft operation and maintenance  manuals for a trial period of approximately three months. During this period, the Engineer shall have  the opportunity to witness all operation and maintenance activities, the objectives of which are to op- timise the functioning and operation of the entire plant. Details of the trial operation period including  operational conditions, assessment of treatment performance and compliance with effluent criteria etc.  are described in Volume 3.  Details of the defects notification period including operational conditions, assessment of treatment per- formance and compliance with effluent criteria etc. are described in Volume 3.  The undersigned Tenderer guarantees that the effluent from the Giresun Wastewater Treatment Plant  during Test on Completion and Defects Notification Period shall comply with the following effluent  standards as the conditions, compliance criteria are stipulated in Volume 3.  $^{1}$  All discharge criteria except total coliform bacteria shall be fulfilled before the filtration $^{2}$  TSS concentration shall be 35 mg/l at the outlet of final clarifiers and 5 mg/l at the outlet of filtration and UV disinfection unit $^{3}$  This criterion shall be applicable for the temperatures of the wastewater ≥12 $^{o}$C August 2020 d4w_finoffer_4.2_en.doc Page 7 of 9  Guarantee values for Giresun Wastewater Treatment Plant  Indicators  Value$^{1}$  Stage  BOD$_{5}$   25 mg/l  Test on Completion and Test after Completion  COD    125 mg/l  Test on Completion and Test after Completion  TSS   35 mg/l$^{2}$  Test on Completion and Test after Completion  Total-N   10 mg/l$^{3}$  Test on Completion and Test after Completion  Total P   1 mg/l  Test on Completion and Test after Completion  Dry solid content of the final de- watered sludge    22%  Test on Completion and Test after Completion  Dry solid content at the outlet of the  sludge drying  ≥ 90% Test on Completion  Chemical consumption for additional  P removal to reach the guaranteed  Total-P concentration at the outlet …….  kg dry chemical  /kg P removed (to be filled in  by the tenderer)  Test on Completion 