The 6th International Conference on Remediation - Environmental ...

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Kennedy Space CenterCenter Operations DirectorateCritical Points Regarding Site Impacts♦ DNAPL source area encompasses ~2 acres (norecoverable product present)♦ Dissolved groundwater plume of ~330 acres♦ Groundwater modeling results‣ No Action – >900 yrs to reach MCLs‣ 85% DNAPL Source Removal and Dissolved Plume HydraulicControl – 750 yrs to reach MCLs‣ 99% DNAPL Source Removal (feasible?) and Dissolved PlumeHydraulic Control – 250 yrs to reach MCLs♦ So how much do you spend to reduce the cleanuptimeframe from “very long” to “long” on a barrier islandwith no exposure pathway?June 21, 2007 16
Kennedy Space CenterCenter Operations DirectorateTechnology Screening♦ Divided site into three areas‣ DNAPL Source Zone (DSZ)‣ High Concentration Plume‣ Low Concentration Plume♦ Aquifer was split vertically based upon technologylimitations and lithology (
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