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  1. Products
  2. Phase 1 Desk Study

Phase 1 Desk Study

In line with the Land Contamination Risk Management Strategy (Environment Agency, 2020), BS5930 and Eurocode 7 (EN 1997) all ground investigations should be preceded with a suitable Phase 1 Desk Study and Site Walkover to provide a baseline information package about any site. 

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Stage 1 LCRM – Preliminary Risk Assessment

This preliminary risk assessment should be carried out by a suitably qualified and competent person and here at Kiwa our staff are trained in providing this service. The conceptual model provided from this study informs what further stages of investigation are necessary in order for the site to be developed for a suitable and safe end use. This is of particular importance with the drive toward re-use of Brownfield Land.

What is the process?

The Land Contamination Risk Management (EA, 2020) guidance Stage 1 process requires a preliminary information gathering and risk assessment process for the Source – Pathway – Receptor contamination linkage at a site.

Where access and conditions allow, we will aim to provide a comprehensive Phase 1 Geo-Environmental desk study including a site walkover survey report within 12-15 working days.

We will endeavour to liaise with the relevant local authority Environmental Health Officer regarding the site.

What is contained within a Phase 1 Desk Study?

In line with guidance including the Environment Agency’s Land Contamination Risk Management Strategy, baseline GIS data and Historical Mapping and an assessment of these to provide an overall Conceptual Model of the Site in order to gain an insight into what further steps are necessary to investigate the site. The baseline information includes, but is not limited to, Geology, Preliminary Coal Mining and Brine information, Environmental Permitting, Water Bodies, Aquifers, Flood Risk, Radon and Contaminative Land Use data. Additional searches can include more site-specific Coal Mining Information and a Petroleum Officer (Trading Standards) records search.

All of this data will assist in the decision-making process. We interpret all the information collected, so you understand what the risks and hazards for your development on your proposed site are.

A site walkover survey will (and must) be conducted as part of each report and this is required to ground-truth some of the data obtained, understand likely logistics on site for any further investigation and assist with the programming of any further works.

What is the output?

The Site Conceptual Site Model can be developed once the data has been suitably scrutinised. This will allow for environmental and geotechnical hazards to be assessed and preliminarily categorised.  Any potential pollutant linkages can then be understood for a Phase II Site Investigation, if that is required.

What is not included?

Services and Utilities Searches are a separate operation service to this.

How are the reports presented?

Our reports are provided in PDF format via email.

What we require from our clients to process the site.

  • We require a clear plan highlighting the site boundary/area of interest.
  • Current site use and a proposed development plan.
  • Any planning application information. Any previous communications relating to this.
  • Any preliminary information assists our process: e.g. are you the landowner, is there known information: fuel tanks, materials storage, historic use information, existing service and utility information, previous site investigation information, etc.
  • Are there any obvious health and safety hazards present on site that we need to consider?

Related Products

  • Phase 2 Intrusive Investigation

    The Land Contamination Risk Management (EA, 2020) guidance Stage 1 process requires further information and refinement on the risk assessment process for the Source – Pathway – Receptor contamination linkage.
    Show
  • Remediation Method Statements

    Remediation Method Statements and Watching Brief (Stages 2 and 3 LCRM – remediation feasibility and development of a final remediation strategy).
    Show
  • Verification of Remediation

    Verification of Remediation Site Works and Reporting (Stage 3 LCRM – verification and future works)
    Show
  • Gas Monitoring & Assessment

    Kiwa can provide a standalone Ground Gas Monitoring service, or as part of a more detailed Phase 2 Intrusive investigation where assessment is made to BS8485 (Code of practice for the design of protective measures for methane and carbon dioxide ground gases for new buildings).
    Show
  • Site Investigation

    Whether it be for contamination, geotechnical profiling, coal authority rotary boreholes, trial pitting, etc. we can help you achieve your technical goals. Our dedicated and qualified teams are only a telephone call away, so whatever your requirements, large or small, we are ready to help you deliver.
    Show
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