INVESTIGATION FOR MARINE SAND BURROW AREA OFFSHORE OF DAMAN IN CONNECTION WITH VADHVAN PORT PROJECT

Mobilizing and demobilizing of vessels/ equipment, all other necessary machinery, including jack up/ floating barge for marine holes, and personnel for boring work including all other enabling works including site establishment etc for Marine investigation (60% of the total amount under this item shall be released upon mobilization and balance 40% after demobilization)

Multibeam swath bathymetric survey with seamless coverage having 50% side overlap between adjacent lines for 60 sq. km area as per map.

Shallow seismic profiles /sub bottom profiler across the block indicating the disposition of subsurface sedimentary units/ rocks at 500 m interval, presented in a horizontal scale of and vertical scale of 1:500 scale.

Seabed sediment/ rock sampling using suitable corer or any other device at 500 X 500 m grid spacing extending to a depth upto at least 6 mts or till the depth of mineralisation whichever is less.

Details of Environmental Setting(Upload the report if any): Current, wave, noise levels, deleterious elements if any present in the surface and sub-surface sediments, details about sea water quality, suspended solids, Total Dissolved Solids (TDS), salinity, temperature, Dissolved Oxygen (DO), Biological Oxygen Demand (BOD), light availability, Marine Biota, density, pH, Turbidity, heavy metal studies etc. and any other data as may be required by the Ministry of Environment, Forest and Climate.

Laboratory Test (Physical & Chemical Both)

Comprehensive Report

Total (Figures)

GST @ 18%

GRAND TOTAL (Quoted Amount + GST)