regulations on where you can postion a treatment plant or septic tank

[scottishjohn]

any one a aet of regs frp placement of septic tank or treatmneplant 

and all minimum distance for house and  dimensions for a leak filed

[Kelvin]

By ‘leak filed’ do you mean a soakaway? If so you need a percolation test done to determine if the ground is suitable and where best to build it. Soakaway’s need to be 10m from a watercourse and 50m from a borehole and 15m from a house. The size needs to be calculated. Treatment plants need to 7m from a house. You also need to consider trees. 

[ProDave]

5M from a building or boundary, 10M from a road or watercourse.

[saveasteading]

https://www.gov.scot/publications/building-standards-technical-handbook-2020-domestic/3-environment/3-9-private-wastewater-treatment-systems-infiltration-systems/