Remediation Options Appraisal
What is geo-environmental remediation options appraisal?
Remediation options appraisal is a process of evaluating the various options available for remediating contaminated land. It considers a range of factors, including the type and extent of contamination, the site's geology and hydrogeology, the proposed end use of the site, the technical feasibility, cost, and environmental impact of each remediation option.
Why is a geo-environmental remediation options appraisal important?
Geo-environmental remediation options appraisal is important because it helps ensure that the most appropriate and effective remediation solution is selected for each site. The wrong remediation strategy can waste time and money, and may not even be successful in addressing the contamination.
What are the benefits of using Igne for geo-environmental remediation options appraisal?
Igne is a leading provider of geo-environmental services, with a team of experienced and qualified professionals. We have a proven track record of success in delivering on over 7,000 project sites across England, Wales, Scotland, Northern Ireland, the Isle of Man, Isle of Wight and Jersey.
Our geo-environmental remediation options appraisal services offer the following benefits:
Comprehensive assessment: We undertake a comprehensive assessment of the site conditions and the type and extent of contamination. This allows us to identify the full range of remediation options available to you.
Expert advice: Our team of experts have a deep understanding of the latest remediation technologies and best practices. We can provide you with sound advice on the best remediation option for your site.
Tailored solutions: We develop tailored remediation solutions that meet the specific needs of your site and your budget.
Project management: We can provide full project management services for your remediation project, from start to finish.
Igne has provided site remediation options appraisal for clients including Britain’s leading house builders and major retailers.
Igne’s geo-environmental consulting services include:
Preliminary risk assessment (PRA)
A PRA is a detailed assessment of the potential for contamination at a site, based on a review of historical records, site surveys, and other available information. PRAs are typically used to identify sites that may require further investigation or remediation.
Generic quantitative risk assessment (GQRA) environmental site assessment
A GQRA is an assessment of the potential risks posed by contamination at a site. GQRA uses generic assessment criteria to estimate the likelihood and consequences of potential risks.
Detailed quantitative risk assessment (DQRA)
A DQRA is the most detailed type of quantitative risk assessment and uses site-specific assessment criteria to estimate the likelihood and consequences of potential risks.DQRA is often used to support remediation decisions for complex or highly contaminated sites.
Coal mining risk assessment
A coal mining risk assessment is a specialised assessment of the risks posed by abandoned coal mines. Coal mining risk assessments typically consider the potential for subsidence, ground gas emissions, and acid mine drainage.
Flood risk assessment
A flood risk assessment assesses the potential for flooding at a site. Flood risk assessments are typically used to support planning decisions for new developments, and to identify and mitigate flood risks to existing infrastructure.
Hydrological modelling is the use of mathematical models to simulate the movement and storage of water in the environment. Hydrological modelling is used for a variety of purposes, including flood risk assessment, water resource management, and contaminated land remediation.
Site environmental audit/due diligence
A site environmental audit/due diligence is a comprehensive assessment of the environmental condition of a site. Site environmental audits are typically required for commercial real estate transactions and other development projects.
Foundation design recommendations
Foundation design recommendations are provided by our geotechnical engineers to support the design of new structures and the repair of existing structures. Foundation design recommendations are based on the geotechnical properties of the soil and rock at the site.
Pavement design recommendations
Pavement design recommendations are also provided by our geotechnical engineers to support the design of new and rehabilitated pavements. Pavement design recommendations are based on the traffic loading and geotechnical properties of the subgrade soil.
Slope stability assessment
A slope stability assessment is an assessment of the risk of slope failure. Slope stability assessments are typically required for development projects involving steep slopes or excavations.
These are just brief descriptions of each service. For more detailed information, please contact us and speak to a qualified geotechnical or environmental engineer.
Igne’s geo-environmental contracting services include:
Ground investigation is the process of gathering information about the ground conditions at a particular site. This information is used to assess the suitability of a site for a proposed development, and to design the foundations and other structures that will be needed to support it.
Ground investigation can be carried out using a variety of methods, including:
- Desk studies: This involves reviewing existing information about the site, such as historical maps, geological reports, and aerial photographs.
- Site walkovers: This involves inspecting the site, literally on foot, to identify any potential hazards, such as slopes, sinkholes, or evidence of previous mining activity.
- Trial pits and trenches: These are shallow excavations that are used to expose the ground conditions and collect soil samples for testing.
- Boreholes: These are deeper excavations that are drilled into the ground to collect soil or groundwater samples for testing and to measure the depth to bedrock and other important features.
Once the ground investigation is complete, we will produce a report that summarises the findings and provides recommendations for your proposed development.
To learn more about the site investigation services Igne offers, visit our dedicated Site Investigation section.
Mine entry investigation and treatment
Mine entry investigation and treatment is the process of identifying and treating mine entries, such as shafts, adits, and drifts. These entries can pose a number of hazards, including:
- Subsidence: The ground above a mine entry can collapse, causing damage to property and infrastructure.
- Gases: Mine entries can release harmful gases, such as methane and carbon dioxide, which can pose a risk to human health.
- Water: Mine entries can flood, which can damage property and infrastructure.
Mine entry investigation and treatment can be carried out using a variety of methods, including:
- Desk studies: This involves reviewing existing information about the mine, such as mining plans and geological reports.
- Site walkovers: This involves inspecting the site on foot to identify any potential mine entries.
- Geophysical surveys: These surveys use a variety of non-intrusive techniques such as ground penetrating radar, to detect mine entries that are buried beneath the ground surface.
- Boreholes: These are drilled into the ground to collect samples for testing and to determine the condition of mine entries and to check for possible voids.
Once the mine entry investigation is complete, we will produce a report that summarises the findings and provides recommendations for treatment. Treatment methods can include:
- Capping and filling: This involves filling in the mine entry with material to prevent subsidence and to prevent the release of gases and water.
- Grouting: This involves injecting grout into the ground around the mine entry to seal it off and prevent subsidence.
- Venting: This involves installing vents to allow gases to escape safely from the mine.
- Pumping: This involves pumping water out of the mine to prevent flooding.
Ground investigation and mine entry investigation and treatment are important services that can help to protect people and property from the hazards associated with mines and other underground workings.
How it works
How does Igne's geo-environmental remediation options appraisal process work?
Our geo-environmental remediation options appraisal process typically involves the following steps:
We undertake a site investigation to identify the type and extent of contamination, as well as the site's geology and hydrogeology.
We carry out a risk assessment to evaluate the risks posed by the contamination to human health and the environment.
Remediation options appraisal:
We evaluate a range of remediation options and assess each option based on its technical feasibility, cost, environmental impact, and ability to mitigate the risks identified in the risk assessment.
Remediation strategy development:
We work with you to develop a remediation strategy that meets your specific needs and budget.
You have questions?
We have answers!
What are some of the most common geo-environmental remediation options?
Excavation and disposal:
This involves excavating contaminated soil and disposing of it at a licensed landfill.
This involves treating the contamination in situ using a variety of techniques, such as soil washing, bioremediation, or thermal desorption.
This involves placing a layer of clean soil or other material over the contaminated soil to prevent it from coming into contact with people.
This involves placing restrictions on the use of the site, such as limiting access or prohibiting certain activities.
Which geo-environmental remediation option is best for my site?
The best geo-environmental remediation option for your site will depend on a range of factors, including the type and extent of contamination, the site's geology and hydrogeology, the proposed end use of the site, and your budget. Igne's team of experts can help you to identify the best remediation option for your specific needs.
Frequently asked questions
Q: How long does it take to complete a geo-environmental remediation options appraisal?
The time it takes to complete a geo-environmental remediation options appraisal will vary depending on the complexity of the site and the type of contamination. However, we typically aim to complete our appraisal within 4-6 weeks.
Q: How much does a geo-environmental remediation options appraisal cost?
The cost of a geo-environmental remediation options appraisal will vary depending on the size and complexity of the site. However, we offer competitive rates and can provide you with a fixed-price quote for our services.
Q: What happens after the geo-environmental remediation options appraisal is complete?
Once the appraisal is complete, we will provide you with a report that outlines the various remediation options available, the pros and cons of each option, and our recommendations for the best remediation strategy for your site. We can also help you develop a detailed remediation plan and to implement the remediation solution.
We offer a free initial consultation to assess your site and to discuss your remediation options.