Environmental Assessment Services Ltd ::: Projects
Rivers and flooding
eas have provided services to Water Authorities (now NRA), local authorities and private bodies mainly on the ecology, water quality and flood risk of rivers. Projects have included:
Whether a site has been contaminated by historic or existing land use and whether the ownership of the site carries significant risks of liability for damage to third parties is of great interest to both potential purchasers and vendors.
Our preliminary contamination assessments (PCAs) provide answers to the above and include:
We can normally carry out such PCAs at short notice if required.
Power station cooling systems and control structures.
eas input for coastal power station projects includes:
Projects studied include locations in the Philippines, Pakistan, the Bahamas and the Red Sea. eas have particular expertese in the analysis of cooling water emissions at sites of very low tidal flow.
Ports and the marine environment
eas have broad experience in the environmental assessment and engineering of ports and marinas in the UK and around the world. Areas of particular expertise are:
Numerical modelling is a modern computer technique. Complex natural systems are represented by mathematical equations. These equations are then solved for the required physical system and input conditions to give predictions of the future situation. Models mostly take one of two forms:
The study area is divided into a 1, 2 or 3 dimensional grid of cells.
The information required to set up the grid depends on the type of model
being built. Inputs into the system and flows between the cells are
described by appropriate equations and solved by finite element or finite
difference techniques. Flows over long periods are represented by many
small time steps. Models are calibrated against existing site data and
verified against known situations.
Plume models have no fixed grid but have the emission treated as a
free moving buoyant plume. The size, shape and orientation of the plume
is derermined by the background water or air flows. Mixing within the
plume and the entrainment or deposition of solids from the plume can
all be calculated. Calibration and verification are applied as appropriate.
Examples of plume models are stack emissions and near fields of marine
eas have access to and are experienced in the use of a wide range of standard UK and US numerical models.
The use of standard models offers regulatory acceptability and enables eas to provide a cost effective modelling service suitable for the majority of situations. Special and adapted models can usually be constructed for other situations.
eas have provided a number of environmental statements for marina developments.
Services provided have included:
eas undertake a wide range of contaminated land studies for pre-aquisition audit, risk assessment or for development planning:
eas have provided the following services in connection with industrial projects:
eas have been involved in a wide range of industrial projects ans services from COSHH assessments on small production plants to environmental statements for planning enquiry on large industrial complexes.
Building and development
eas has longstanding relationships with developers and builders to provide input for planning proposals and for the identification and remediation advice concerning problem sites.
eas have provided advice on the highway aspects of complete environmental assessments and on particular aspects of highway planning and design for major road projects. Services include:
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