The Remediation of Chemical Groundwater Contamination at Harwell
The Remediation of Chemical Groundwater Contamination at Harwell
The Remediation of Chemical Groundwater Contamination at Harwell
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<strong>The</strong> <strong>Remedi<strong>at</strong>ion</strong> <strong>of</strong> <strong>Chemical</strong> <strong>Groundw<strong>at</strong>er</strong> <strong>Contamin<strong>at</strong>ion</strong> <strong>at</strong> <strong>Harwell</strong>120Ground level: approx. 120 mAOD115groundw<strong>at</strong>er level (metres AOD)110105100Total w<strong>at</strong>er table range approx. 18 metresW<strong>at</strong>er Table (Chalk Aquifer)95Jan-91Jan-92Jan-93Jan-94Jan-95Jan-96Jan-97Jan-98Jan-99Jan-00Jan-01Jan-02Jan-03Jan-04Jan-05Jan-06Jan-07Jan-08Jan-09Jan-10Figure 3<strong>Groundw<strong>at</strong>er</strong> levels (“w<strong>at</strong>er table”) in the Chalk <strong>at</strong> <strong>Harwell</strong> (BoreholeHWS9), 1991 to 2009120115<strong>Groundw<strong>at</strong>er</strong> levelincrease due to heavyrain, June 200820072008<strong>Groundw<strong>at</strong>er</strong> Level (m AOD)11010510095Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecFigure 4 Annual vari<strong>at</strong>ion in groundw<strong>at</strong>er levels in Borehole HWS9 during 2007and 2008 in comparison to d<strong>at</strong>a since 1991LSG <strong>Groundw<strong>at</strong>er</strong> Report 4 March 2009
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