Modelling and technical studies

Overview

Some impacts cannot be measured until a project exists. Modelling predicts them from the design: how a stack plume disperses, how far noise travels, how a discharge mixes into the sea, how groundwater responds to pumping.

We build the models from site data and the project design, test the scenarios that matter and present the results in a form NCEC reviewers and engineers can use.

When you need it

• Your EIA must predict air, noise or water impacts.^{1NCEC guide LO-1-M-005, technical requirements}
• You will discharge to the sea and need to show how the discharge mixes.^{2Marine reg. (1448H)}
• You need to compare design options before committing to one.

What we deliver

• Air dispersion modellingGround-level concentrations from stacks and area sources.
• Noise modellingPropagation to receptors, including outdoor methods based on ISO 9613-2.
• Mixing zone modellingDilution of discharges into the sea or surface water.
• Groundwater modellingDrawdown and flow for dewatering and abstraction.
• Technical reportInputs, assumptions, scenarios and results.

How we work

1. Gather inputs

   Design data, site measurements and meteorology.

2. Build the model

   Set up and checked against measured data where it exists.

3. Run scenarios

   Normal operation, worst case and design options.

4. Report

   Results that feed the EIA and the design.

Guides on this topic

References

Need help with this? Talk to our team.