Environmental Impact Assessment (EIA) studies
An Environmental Impact Assessment (EIA) is an assessment of the possible positive
and negative impact that a proposed project may have on environmental, social and
economic aspects. EIA is the process of identifying, predicting, evaluating and
navigating the biophysical, social and other relevant effects of development proposals
prior to major decisions being taken and commitments made.
Environ, in association with competent organizations has carried out such studies
in the field of ports/harbors, thermal power plants etc.
- Hydrodynamics studies
- Sediment transport studies
- Wave transformation studies
- Wave disturbance studies
- Dredging and dispersion studies
- Oil spill studies
These studies are used to estimate currents, surface elevations due to tides, river
flows and storm surges. This information is used as one of the inputs in the design
of port structures. The currents and surface elevations obtained from these studies
are essential inputs for assessment of sedimentation, dispersion during dredging
This is useful to estimate the backfilling of dredged channels, morphological changes
in sea, river & estuarinee environments.
This involves the transformation of waves from offshore to the near-shore areas.
This near shore wave data is a necessary input for design of coastal structures
and estimation of downtime for transhipment operations.
Wave disturbance studies
This is useful in estimating the disturbance due to short waves in the port basin.
It helps in understanding the total operational days of the port.
Dredging and disposal studies
Dredging studies are used to estimate the extent of spreading of the bed material
which is brought into suspension during dredging operations.
Dredged material disposal studies are used to estimate the changes in seabed level
and ambient sediment concentrations during dumping operations.
Oil spill studies
These studies are carried out to simulate the oil slick mobility, amount of oil
left on the water surface, evaporation and evolution of the oil properties in ambient
environmental conditions. Mitigation measures and response in an emergency can be