Source Excavation and Soil Vapour Extraction in The Chalk Ecologia was contracted to assess and remediate a site where approximately 1500 litres of heating oil had leaked into the Chalk aquifer upgradient of a major public water supply abstraction. The site presented a number of difficulties, being located on a steep gradient and immediately adjacent to a residential property. Groundwater was known to be at depth within fractured Chalk, but

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