Dual Phase Extraction & BioSparging – Hampshire

A loss of 2000 litres of heating oil occurred adjacent to a grade A chalk stream in Hampshire. The property is located on a chalk stream flood plain. The flint gravels underlying the site allowed the rapid migration of the oil to the chalk stream, which runs through the garden of the property.
Ecologia undertook a detailed survey to assess the spread of the contamination and to delineate the plume. The plume was found to have migrated beneath an engineered section of the river to the opposite side. Free product was also found to have migrated beneath a listed building which precluded excavation of the contaminants. A traditional dual phase extraction system would not be effective in the highly permeable gravels, so the development of an innovative technique was required.

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The HorseBridge Development

A short video about the work done at the HorseBridge Development in Whitstable, Kent.
Open Video

Askern Colliery

Ecologia video on the remediation work under taken at Askern colliery.
Open Video

Air Sparging – West London

Following a loss of a significant quantity of kerosene from an above ground storage tank inWest London, Ecologia were initially contracted to remove free phase oils form the surface of the groundwater. This work was undertaken by Ecologia within 4 months of instruction.

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Domestic Property SVE Following a Kerosene Spill – East Anglia

Ecologia were instructed to provide a remediation options appraisal of contamination in the rear garden of a domestic property in East Anglia. The groundwater was determined to not be at risk due to the limited vertical migration of the contamination, leaving land and structures as the receptors. Excavation and disposal were rejected on the basis of costs
and Ecologia proposed the use of a Soil Vapour Extraction system. The project was organised using a fixed price contract and Ecologia were responsible for regulator liaison to achieve ‘sign off’ for the project and remove liability for the client.

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RF Soil Heating – North London

Many current remediation technologies in the UK have limited efficiency, are time consuming and costly in removing Volatile Organic Contaminants (VOCs), Semi Volatile Organic Contaminants (SVOCs). Soil Vapour Extraction (SVE) is commonly used but can require significant timescales.

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Technology Development Trials – Sittingbourne

Many current remediation technologies in the UK have limited efficiency and costly in removing Volatile Organic Contaminants (VOCs), Semi Volatile Organic Contaminants (SVOCs) and Dense Non-Aqueous Phase Liquids (DNAPLs) especially from tightly compacted soils and from hard to reach areas such as below permanent structures or in
fractured bedrock.

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Acton- West London

Ecologia Environmental Solutions were recently given instruction to undertake the remediation of soil and groundwater at a former factory site in Acton. The site is being redeveloped for residential use and hydrocarbon contamination of the soil and groundwater was identified as being a risk.

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The Horsebridge Development – Whitstable

Ecologia Environmental Solutions Ltd were initially appointed by Consultants 2020 to carry out a site investigation and human health and groundwater risk assessments at the Horsebridge Development, Whitstable. This followed the discovery of historical contamination in the soil and groundwater. The investigative work revealed that the
majority of the contamination was restricted to the coarse gravel present at approximately 2.5-2.9 m below ground level.

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Industrial Site – Tewskebury

Ecologia Environmental Solutions were given instruction in 2005 to undertake the remediation of two adjacent sites at an industrial estate in Tewkesbury. The ground beneath the sites had become contaminated following a large loss of diesel from a transfer pump. The system, that Ecologia designed and built at its workshop, uses a multi technology
approach to solve the combined problems of:

• free product on the water table;
• soil contamination and dissolved phase contamination.

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