REMEDIAL ACTIONS IN RESPONSE TO A KEROSENE RELEASE IMPACTING A WETLAND

摘要

Web Engineering Associates, Inc. (Web Engineering) has conducted remedial actions in response to a release of an estimated 50,000 gallons (189,250 liters) of kerosene that had migrated to a wetland area. The remedial actions were designed with the following objectives: to recover separate phase kerosene in order to prevent any impact on down gradient receptors and any further impact on the wetland area; reduce the levels of dissolved groundwater contamination; and to degrade the petroleum hydrocarbons in the wetland sediments in a manner that would not cause significant damage to the wetland ecology. Implementation of the remedial actions, which included the operation of a groundwater treatment / product recovery system and in situ bioremediation, have resulted in the recovery of nearly all non-aqueous phase liquids (NAPL) and a full recovery of the wetland vegetation. This was accomplished with minimal impact on the wetland and required no excavation of wetland sediments or wetland replication.