As stated in Section 1.4.1, the Contractor shall conduct a new topographical survey for his design works. 

Giresun-Ordu Energy Transmission Line (Single Circuit 474 MCM) is passing over the land of WWTP as shown on the general layout. The construction permission conditions and safety approach distances (SAD) description is given below$^{1}$ : 

“The nearest vertical distance between the land located between the poles of 22-23 of 154 kV Giresun- Ordu ETL (Single Circuit 474 MCM) and passing over the land between 100-142 m distances to 154 kV Giresun-Ordu ETL pole no 23, and energy transmission line is measured as 37 m from the ground. 

Construction height which can be done on the natural ground of the land below the access area borders of the 154 kV Giresun-Ordu ETL (Single Circuit 474 MCM) when safety distance in the Article 44 paragraph h of the Regulation on Electrical Power Current Plants (Safety distance in the Article 44 paragraph h of the Regulation on Electrical Power Current Plants; in the case of the greatest loop of conductors, at the maximum allowed operating voltage 170 kV of the line, the minimum vertical distance to flat-roofed structures that can be accessed by anyone or inclined-roofed structures that can not be accessed by anyone over which the conductors passing is specified as of 5 m) and the conductivity of the conductor is calculated at a temperature of 45°C, the outer phase conductors of the line (both side conductors of the line are outer phase conductors) can not exceed a height of 26 m between points at 24 m distance measured perpendicularly from the projections on the natural ground to the outside of the line. 

Since, beyond points at 24 m distance of the outer phase conductors of the 154 kV Giresun-Ordu ETL (Single Circuit 474 MCM) measured perpendicularly from the projections on the natural ground to the outside of the line, would be gone out of the access area of the line there is no risk in building construction in desired height from these points.” 

The layout of the plant shall be logical and feasible, thereby reducing the extent of piping and facilitating the access to the main equipment. The area requirement shall be kept as low as possible. 

There shall be easy access for trucks to all buildings for maintenance as well as to all containers. 

The most critical mechanical equipment such as inlet pumps, all sludge pumps, blowers, mechanical thickeners, decanters etc. will all have a stand-by unit to be taken into operation in case of breakdown, maintenance or repair. 

The administration building shall be located in such a way that major parts of the plant, including traffic through the main entrance gate, shall be visible from the control room. The administration building shall be constructed including staff facilities, laboratory, control room, meeting rooms etc. In addition, a separate building with workshops will be constructed. 

If possible, all buildings shall be located in one area for the operational simplicity. 

