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The Contractor shall specify in his tender the exact number of tools, etc. the make, type, etc. All equipment shall be for professional application only. 

Roads, parking areas and walkways etc. 

Road works comprise the construction of service roads, parking areas, walkways and surface water drainage systems inside the treatment plant site. Service roads shall be at least 5 m in width and pavements shall be 1 m width. 

Along the roads, drainage pipes or channels shall be installed to collect the surface water on the roads and building roofs. The surface water shall be discharged to the next creek. 

## 3.3.10 Heating and Ventilation 

## General 

Proper heating and ventilating systems shall be provided in several buildings and units in the wastewater treatment plant. A boiler system or independent combi boiler for each building shall be used for the heating system. Air conditioners and electrical heaters shall not be used. All buildings shall be heated by either diesel/light fuel or natural gas. In addition air conditioning system shall be provided for Administrative building, guard house and all offices in the other buildings. 

The units to be heated: 

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When the weather is cold, the following temperature values shall be ensured in the buildings: 

a) Administrative building, guard house, laboratories and control room: 24°C 

b) Equipment and machinery rooms, pump rooms : 20°C 

c) Kitchens, stairs, corridors and toilets : 20°C 

d) Workshop and Storage : 24°C 

