Client:
Services: Concerns: | Kerr-McGee,
Savannah, Georgia Emergency Corrective Action Petroleum AST Release–Soil/Groundwater Investigation Soil/Groundwater Remediation for “No Further Action” Letter Georgia USTMP Standards (Default Standards for Petroleum ASTs Clean Water Act (in Relation to Nearby Savannah River) |
Scope of Services:
AEM performed emergency corrective action for no. 2 fuel oil–contaminated soil and free liquids in an area adjacent to a 400,000-gallon aboveground no. 2 fuel oil storage tank. During a three-day period in February 2000, AEM was responsible for the immediate development of the corrective action plan and implementation of the cleanup of contaminated soil and free liquids at the site. The tank is located approximately 100 feet from a major coastal waterway.
The fuel oil tank is located within an earthen secondary containment diking area covered with an impermeable synthetic liner. A drainage pipe equipped with a valve was used to release storm water inside the containment area. Subsequent to a heavy rain, the facility’s staff noted a release of fuel oil through the valve, which had apparently clogged and released rainwater mixed with oil. It was critical that contamination be removed as quickly as possible, because of the proximity to the Savannah River.
AEM implemented, as quickly as feasible, corrective action to address the oil release. The corrective action included (1) the excavation of visibly contaminated soil, (2) the removal of free-floating fuel oil on the standing water in the drainage ditch, (3) the proper off-site transport and disposal of the excavated soil as a special waste, (4) re-grading the excavated area with clean fill, and (5) re-vegetation of the area using native flora. AEM documented sealing off of the storm water release pipe so that any future storm water that collects in the containment will be manually pumped from the containment area for disposal or treatment.
AEM successfully achieved all goals regarding the emergency response activities to the fuel oil spill. The storm water release pipe was repaired to prevent future releases from the fuel oil containment area. The contaminated soil and free liquid fuel oil were removed from the release area. Because of the expedient cleanup, the adjacent area was not impacted by the fuel oil release. The removal of the contaminated soil and free liquids also eliminated the possibility of gradual subsurface migration of fuel oil contaminants in the critical area near the river.
After the emergency remediation of surface contamination, AEM then designed and implemented a pilot test and full-scale remediation system for subsurface soil and groundwater remediation from historic releases from the no. 2 fuel oil AST. Pilot test technologies included bioventing, biosparging, dual-phase vacuum extraction, air sparging, and steam injection; various field and laboratory tests were performed to assess the viability of these technologies. The results indicated that a combination of the technologies could hydraulically control the plume and efficiently reduce the soil and groundwater contamination.
AEM then implemented a full-scale DVE/bioventing system to remediate impacted soil, as well as dissolved-phase and free-phase petroleum. System installation, startup, and O&M activities were conducted by AEM. Corrective action objectives were achieved after 8 months of full-scale remediation system operation. Georgia EPD then issued a "No Further Action Required" letter for the no. 2 fuel oil AST release.
The fuel oil tank is located within an earthen secondary containment diking area covered with an impermeable synthetic liner. A drainage pipe equipped with a valve was used to release storm water inside the containment area. Subsequent to a heavy rain, the facility’s staff noted a release of fuel oil through the valve, which had apparently clogged and released rainwater mixed with oil. It was critical that contamination be removed as quickly as possible, because of the proximity to the Savannah River.
AEM implemented, as quickly as feasible, corrective action to address the oil release. The corrective action included (1) the excavation of visibly contaminated soil, (2) the removal of free-floating fuel oil on the standing water in the drainage ditch, (3) the proper off-site transport and disposal of the excavated soil as a special waste, (4) re-grading the excavated area with clean fill, and (5) re-vegetation of the area using native flora. AEM documented sealing off of the storm water release pipe so that any future storm water that collects in the containment will be manually pumped from the containment area for disposal or treatment.
AEM successfully achieved all goals regarding the emergency response activities to the fuel oil spill. The storm water release pipe was repaired to prevent future releases from the fuel oil containment area. The contaminated soil and free liquid fuel oil were removed from the release area. Because of the expedient cleanup, the adjacent area was not impacted by the fuel oil release. The removal of the contaminated soil and free liquids also eliminated the possibility of gradual subsurface migration of fuel oil contaminants in the critical area near the river.
After the emergency remediation of surface contamination, AEM then designed and implemented a pilot test and full-scale remediation system for subsurface soil and groundwater remediation from historic releases from the no. 2 fuel oil AST. Pilot test technologies included bioventing, biosparging, dual-phase vacuum extraction, air sparging, and steam injection; various field and laboratory tests were performed to assess the viability of these technologies. The results indicated that a combination of the technologies could hydraulically control the plume and efficiently reduce the soil and groundwater contamination.
AEM then implemented a full-scale DVE/bioventing system to remediate impacted soil, as well as dissolved-phase and free-phase petroleum. System installation, startup, and O&M activities were conducted by AEM. Corrective action objectives were achieved after 8 months of full-scale remediation system operation. Georgia EPD then issued a "No Further Action Required" letter for the no. 2 fuel oil AST release.
