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Develop your conceptual model You need to develop a conceptual model. This will form the basis for your risk assessments and will help you successfully evaluate environmental risks.
Conceptual models for groundwater protection describe important hydraulic, hydro-chemical and biological processes that are at work in the soil, the unsaturated zone and the groundwater itself. Your model should describe potential environmental impacts associated with the site, and any uncertainties in how the activity will interact with the hydrogeological setting.
The nature and scale of these uncertainties will determine the need for any subsequent site investigations and guide the development of any monitoring programmes.
What your model should show Your model should aim to demonstrate the: The conceptual model must explicitly identify whether there is potential for a direct or indirect input of any hazardous substances or non-hazardous pollutants to groundwater.
All hazardous substances and non-hazardous pollutants with the exception of ammoniacal nitrogen, ammonium and suspended solids are known as specific substances. If your discharge includes specific substances, a specific substances assessment will be needed as part of your risk assessment.
If you identify the potential for a direct discharge in the conceptual model and risk screening stage, then you must carry out a risk assessment that is correspondingly more detailed.
The main stages to developing an effective conceptual model include: Collect together all available and relevant information to characterise the site and its surroundings from literature, public registers and site reconnaissance.
Sources of information include: Water features survey You should undertake a water features survey to include the details of any private and licensed groundwater abstractions in the vicinity of the proposed activity including their: Where the geology and hydrogeology of the area is layered, you need to ascertain the construction details of wells and springs to check whether the abstraction is from a shallow vulnerable layer or deeper, confined and protected layer.
Your water features survey should also include information on surface water receptors. The nature and scale of these uncertainties will determine your need for site investigations and guide the development of any site investigation programme. Use this information to form an initial site conceptual model.
You should get preliminary views from the Environment Agency and other interested parties such as local authorities through a pre-application meeting using the initial site conceptual model as a basis for discussion. You may need to update your conceptual understanding of the activity and its potential impact on the environment accordingly.
You can then use this information to produce a more detailed conceptual model.
For example, a landfill source will need to include a range of hazardous substances and non-hazardous pollutants.An environmental risk assessment allows you to assess the likelihood of your business causing harm to the environment. This includes describing potential hazards and impacts before taking precautions to .
Risk Assessment Information System - a toolkit for environmental professionals and novices alike. Radiological Risk Assessment and Environmental Analysis comprehensively explains methods used for estimating risk to people exposed to radioactive materials released to the environment by nuclear facilities or in an emergency such as a nuclear terrorist event.
This is the first book that merges the diverse disciplines necessary for estimating where radioactive materials go in the environment. The purpose of a London fire risk assessment is to identify the fire hazards, identify people at risk, evaluate, remove or reduce the risks, record your findings, prepare an emergency plan and provide training and review and update regularly.
To complete an air emissions risk assessment you need to follow these steps. The figures the tool gives you are ‘worst case’ estimates. So the figures you get may be higher than if you. Green Leaves III is the latest edition of the Government’s Guidelines for Environmental Risk Assessment and Management.
This document is intended to guide policy and regulatory staff in.