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 p

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