34 of 74  Construction of Giresun Wastewater Treatment Plant  Tender Dossier Volume 3 Employer’s Requirements  Section 3: Plant Description  3.3.4.21.2 Intermediate Flow Measurement  3.3.4.21.3 Effluent Flow Measurement  3.3.4.22 Treated wastewater for reuse  3_Vol3_d4.3_Section 3_Plant Description_GIR_rev08  Treated effluent shall be used for washing screens, screen presses, grit classifiers, pipe cleaning (e.g.  rod eye application), FeCl$_{3}$ preparation and dilution, mechanical thickening and sludge dewatering  plant wash water requirements, watering for landscaping, sprinkler system installed on units, cleaning  of tanks, indoor and outdoor cleaning purpose and any other process wise water requirements. Treated  wastewater shall be taken from outlet of the disinfection UV system coming after the microfiltration  unit. However, the Tenderer shall make his own calculations for quality, quantity and pressure  requirements and comply with the local and EU regulations to provide the system with all the  necessary units and auxiliaries. A standard open channel measurement (ultrasonic) unit or in-line flow meter (electromagnetic) shall  be installed for continuous flow monitoring and recording. Regardless of type, easy access to flow  meter for installation, dismantling and maintenance shall be secured and unhindered. For this purposes  suitable lifting system shall be provided. The accuracy of flow measurement device for electromagnetic type shall be ±0.5 % of the measured  flow.  All by-pass lines shall have enough capacity to carry at least maximum flow of second stage.  The flow measurement devices on all bypass lines within the WWTP shall have a minimum capacity  of 30% higher than the capacity of by-pass lines.  3.3.4.21.4 Bypass Line Flow Measurements  The accuracy of flow measurement device for electromagnetic type shall be ±0.5 % of the measured  flow.  The effluent discharge line to receiving body shall have enough capacity to carry at least the  maximum flow of second stage. The flow measurement devices on effluent discharge line shall have a  minimum capacity of 30% higher than the capacity of the effluent discharge line.  A standard open channel measurement (ultrasonic) unit or in-line flow meter (electromagnetic) shall  be installed before outlet structure for continuous flow monitoring and recording. Regardless of type,  easy access to flow meter for installation, dismantling and maintenance shall be secured and  unhindered. For this purposes suitable lifting system shall be provided. The accuracy of flow measurement device for electromagnetic type shall be ±0.5 % of the measured  flow.  The flow measurement device shall have a minimum capacity of 30% higher than the maximum  flow of second stage.  A standard open channel measurement (ultrasonic) unit or in-line flow meter (electromagnetic) shall  be installed downstream of the primary clarifier tanks for continuous flow monitoring and recording.  Regardless of type, easy access to flow meter for installation, dismantling and maintenance shall be  secured and unhindered. For this purposes suitable lifting system shall be provided. The accuracy of flow measurement device for electromagnetic type shall be ±0.5 % of the measured  flow.  The flow measurement device shall have a minimum capacity of 30% higher than the maximum  flow of second stage. 