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Preliminary & Detailed Site Investigations

As part of environmental assessments, Preliminary Site Investigations (PSI) and Detailed Site Investigations (DSI) play important roles in evaluating and managing contaminated land. These investigations are indispensable steps in understanding the environmental health of a site, assessing potential risks, and formulating effective remediation strategies.

When Preliminary and Detailed Site Investigations are required

Preliminary Site Investigations are typically the initial step, conducted to identify and assess potential environmental risks associated with a site. They are often a regulatory requirement during the early stages of land development or prior to property transactions. On the other hand, Detailed Site Investigations follow if further in-depth analysis is warranted, aiming to provide a comprehensive understanding of the extent and nature of contamination.

Preliminary Site Investigations (PSI)

In the early stages of environmental due diligence, Preliminary Site Investigations act as a crucial precursor to comprehensive assessments. These investigations serve the purpose of identifying potential environmental hazards, gauging contamination risks, and providing an initial overview of the site's environmental health.

Key Components of a Preliminary Site Investigation:

  1. Site Walkovers and Historical Analysis: Conducting a physical site walkover and delving into historical records are fundamental steps. This aids in identifying past land uses, potential sources of contamination, and any existing environmental concerns.
  2. Soil and Groundwater Sampling: Preliminary sampling of soil and groundwater is undertaken to analyse the presence of contaminants. This initial assessment helps determine the need for further, more detailed investigations.
  3. Regulatory Compliance Check: Ensuring compliance with local environmental regulations is integral. A PSI helps in identifying potential legal obligations and requirements for more extensive investigations.

Raw Earths Preliminary Site Investigation Services

At Raw Earth Environmental, our Preliminary Site Investigation services are tailored to meet the unique needs of each project. We offer:

  • Comprehensive Site Assessments: Our team conducts thorough site walkovers, leveraging advanced technologies to identify potential risks and contamination sources.
  • Environmental Sampling: Utilising state-of-the-art equipment, we perform soil and groundwater sampling, providing accurate data for initial risk assessments.
  • Regulatory Expertise: We navigate the complex landscape of environmental regulations, ensuring your project aligns with legal requirements.
An environmental consultant drilling a soil sample.

Detailed Site Investigations (DSI)

As a more comprehensive phase following Preliminary Site Investigations, Detailed Site Investigations delve deeper into the intricacies of site contamination. Detailed Site Investigations are undertaken when the findings from a Preliminary Site Investigation indicate the need for a more thorough understanding of the nature, extent, and potential risks associated with contaminants.

  1. Detailed Sampling Protocols: Detailed Site Investigations involve a meticulous sampling strategy, including additional sampling points and a broader range of contaminants. This detailed approach provides a more accurate representation of the site's environmental condition.
  2. Advanced Laboratory Analysis: Samples collected during Detailed Site Investigations undergo advanced laboratory analysis. This step is crucial for identifying specific contaminants and their concentrations, aiding in the formulation of targeted remediation strategies.
  3. Risk Assessment and Mitigation Strategies: Detailed risk assessments are conducted to understand the potential impact of contaminants on human health and the environment. Raw Earth Environmental works closely with clients to develop effective mitigation and remediation strategies based on these assessments.

Raw Earth Detailed Site Investigation Services

Our Detailed Site Investigation services are designed to provide clients with a comprehensive understanding of environmental risks. We offer:

  • Specialised Sampling and Analysis: Utilising cutting-edge technology, we conduct detailed sampling and analysis, ensuring accurate and reliable data.
  • Risk Management Strategies: Our team of experts assesses the potential risks associated with contaminants, developing customised strategies for effective risk management and mitigation.
  • Regulatory Compliance: Raw Earth Environmental ensures that all investigations align with local and national environmental regulations, providing clients with confidence in the legality and sustainability of their projects.

By combining expertise, advanced technology, and a commitment to environmental stewardship, Raw Earth Environmental delivers unparalleled Detailed Site Investigation services, empowering clients to make informed decisions about their projects.

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Frequently Asked Questions Regarding Preliminary & Detailed Site Investigations

What is the purpose of a preliminary site visit?

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A preliminary site visit serves as the initial step in understanding the environmental conditions of a site. The primary purpose is to identify potential environmental risks and contaminants. During this phase, a physical walkover of the site is conducted, historical records are analysed, and initial soil and groundwater samples may be taken. The goal is to provide a broad overview of the site's environmental health, helping stakeholders determine the necessity for further, more detailed investigations.

What is the difference between preliminary and detailed site investigation?

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The main distinction lies in the depth and scope of the assessment. Preliminary Site Investigations (PSI) are a broad examination aimed at identifying potential contamination risks. In contrast, Detailed Site Investigations (DSI) are more extensive and involve in-depth analysis, advanced sampling, and comprehensive laboratory testing. While PSI provides an initial snapshot of environmental conditions, DSI offers a detailed understanding of the nature, extent, and potential risks associated with contaminants, enabling informed decision-making and tailored remediation strategies.

What are the 5 components of a site analysis?

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  1. Site Walkover: A physical examination of the site to identify visible environmental features and potential sources of contamination.
  2. Historical Analysis: Reviewing historical records to understand past land uses and potential environmental impacts.
  3. Soil and Groundwater Sampling: Collecting samples for analysis to determine the presence and concentration of contaminants.
  4. Regulatory Compliance Check: Ensuring adherence to local environmental regulations and identifying legal obligations.
  5. Risk Assessment: Evaluating the potential risks associated with contaminants to human health and the environment.

What is the purpose of a detailed site investigation?

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A Detailed Site Investigation (DSI) serves the purpose of providing a comprehensive understanding of environmental risks. It involves advanced sampling, in-depth laboratory analysis, and detailed risk assessments. The goal is to identify specific contaminants, their concentrations, and potential impacts on the site. This information is crucial for the development of targeted and effective remediation strategies, ensuring that any environmental challenges are addressed in a thorough and sustainable manner.