The following details are required prior to commencing the design of the plant:

• Tender documents with all the corrigendum and files
• Survey Requirements:
  • Contour mapping of the entire plant plot boundary, extending 50 metres on all four sides.
  • Ground level (GL) of the discharge pipeline.
  • High Flood Level (HFL) of both the plant location and the discharge point (these are separate items).
  • Ground water table below NGL
  • L Section of the ground level profile of discharge pipeline route as well as rising main
  • Discharge condition
• Geotechnical investigation: Please request the SBC testing provider to furnish a report with the following specifications:
  • Depth of investigation: 10 metres for all structures (except for MPS, which should be invert level minus 10 metres).
  • Required values for various foundations:
  • Continuous Strip Foundation at depths of 1, 1.5, 2.5, 3, and 3.5 metres; widths of 1, 1.5, 2, and 2.5 metres.
  • Isolated Footing at depths of 1, 1.5, 2, 2.5, and 3 metres; widths of 1.2 x 1.2, 1.5 x 1.5, 2 x 2, and 2.5 x 2.5 metres.
  • Raft Foundation at depths of 1, 1.5, 2, 2.5, and 3 metres; width greater than or equal to 6 metres.
  • Pile Foundation capacity for piles with diameters of 250, 300, 350, and 400 mm at depths of 3 and 4 metres. (In case if required)

Disclaimer – This however is the most exhaustive list, based on new information received from after the survey & SBC, more information may be required to be collected at latter stage