Phase 3 Remediation &
Phase 4 Validation

Phase 3 remediation is undertaken if the Phase 1 and Phase 2 investigations have determined it is required.

The aim of any Phase 3 remediation works is to remove or break all the viable identified pollutant linkages on contaminated sites. The Phase 3 assessment aims to develop a land remediation strategy to demonstrate how the site will be safely developed for its purpose.

The end result being to make previously contaminated land ‘suitable for use’. Remediation could be required to contaminated soils, contaminated controlled waters (ground of surface water) and hazardous ground gases.

How Is Phase 3 Undertaken?

Phase 3 investigations aim to identify the physical extent of contamination. This will be based on recommendations made in Phase 2 investigation and may include intensive testing, monitoring, sampling and the design of feasibility studies for remediation and remedial plans.

What is Phase 4 Validation?

A Validation (sometimes referred to as ‘Verification’) report is vital to ensure that planning conditions associated with contaminated land are able to be satisfied and allow proposed developments to proceed.

The Validation Report details information relating to the work undertaken as part of the remediation. It will demonstrate the success of any Phase 3 remediation measures used to break pollutant linkages identified in Phase 1 & 2.

How Can EMS Geotech Help?

The nature of Phase 3 remediation is individuality, as such requires consultants who are experienced at finding innovative solutions to individual concerns.

In the first instance, EMS Geotech’s experienced Geo-Environmental Engineers will produce a detailed Remediation method Statement outlining the objectives, methodology and procedures required for the proposed on-site remediation works.

Based on this, we are able to organise, oversee and manage remediation onsite works throughout the entirety of the project effectively and to budget. We have positive relationships with the Environment Agency and Local Authorities which further assist us on delivery.

Upon completion of the remediation works, a validation report will be produced to demonstrate that the works have been carried out satisfactorily and remediation targets achieved. The validation report will typically include:

• A summary of the works undertaken;

• Copies of photographic and documentary records undertaken during the remediation works;

• Laboratory chemical analysis certificates for all validation analysis undertaken; and

• Details of further contamination identified during the site works (if applicable)

The Environment

EMS are mindful of our impact on the environment and reducing wastage and pollution through our activities. We do this by being mindful of fuel usage and economy. We also ensure good route planning to ensure that we make the most economic use of our vehicles to minimise pollution caused by our vehicle emissions.

EMS also have a dedicated environmental policy and continue to make regular improvements to minimise our impact on our environment. Alongside this we also have a working at home policy which allows us to minimise our employees fuel emissions. EMS are also currently working towards ISO14001.


EMS value safeguarding and all of our staff are DBS (Disclosure and Barring Service) checked. EMS ensures that these are renewed every three years to ensure that these records are kept up to date. EMS keeps records of all DBS checks, and these are kept in electronic form on the company server. Paper copies are also kept of all employee certificates. These are stored electronically and physically at our head office.

Examples of Project EMS Geotech Have Conducted:

• Removal of asbestos impacted soils from a former farm site intended for a proposed residential development.

• Numerous projects involving the removal of disused below ground fuel tanks from former fuel station forecourts for proposed residential developments.

• Numerous projects employing engineered cover systems (combined impermeable membranes and clean soil) for proposed residential and commercial developments.


Ground Investigation, Herefordshire

Ground Investigation for proposed commercial effluent management infrastructure, Herefordshire Client: Large beverage manufacturer Information on ground conditions was needed by the client’s engineers for the design of a high level pipeline and effluent pumping plant.



Desk Study & Ground Investigation

Desk Study and Ground Investigation for a proposed residential development in Oxfordshire Client: Strategic land development company A desk study and ground investigation was undertaken on an agricultural field in order to assist with the sale of the land for residential development.



Desk Study & Ground Investigation

Desk Study and Ground Investigation for a proposed car park in Gloucestershire Client: Construction company A desk study followed by an intrusive ground investigation was required to assess the contaminated land liabilities in relation to the renewal of a large car park.



Ground Investigation, Bedfordshire

Ground Investigation for a drainage scheme for a church conversion in Bedfordshire Client: Drainage engineer EMS were instructed to undertake soakaway testing (in accordance with BRE365:2016) and foundation inspection pits to provide information for the design of a drainage scheme for a church conversion in Bedfordshire.



Soil Contamination Investigation

Soil Contamination Investigation of a former garage site in Oxfordshire Client: Landowner A small residential development is proposed at this site. EMS had previously produced a desk study report which had identified a former garage with fuel pumps as a likely source of contamination. As a result, an intrusive soil contamination investigation...


here to assist you from initial risk assessment through to ongoing management and remediation