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Dewey Loeffel Landfill

Dewey Loeffel Landfill. Fish Monitoring Update February 2009. Site Location Map. Operable Units. O.U. 3 Drainageways. O.U. 1 Landfill. O.U. 2 Groundwater and Leachate. Remedial Program. Operable Unit 03 Removal of PCBs in Drainageways

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Dewey Loeffel Landfill

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  1. Dewey Loeffel Landfill Fish Monitoring Update February 2009

  2. Site Location Map

  3. Operable Units O.U. 3 Drainageways O.U. 1 Landfill O.U. 2 Groundwater and Leachate

  4. Remedial Program Operable Unit 03 • Removal of PCBs in Drainageways • Sediment Removals (Tributary 11A & Area 28 of Valatie Kill) • Monitoring of Residual PCBs in the Ecosystem • Inspection Program for Nassau Lake Dam

  5. Remedial Measures Undertaken in theOU-3 Drainageways To-Date • GE implemented the Mead Road Pond Interim Remedial Measure between June and October 2001, which resulted in the removal of approximately 9600 tons of PCB contaminated soils and sediments in the area immediately adjacent to the disposal site and in Mead Road Pond, a short distance downgradient of the site. • GE implemented the T11A remedial removal action between October 2002 and February 2003, which resulted in removal of virtually all of the PCB-contaminated sediments from the former Mead Road Pond to the confluence of the Valatie Kill. Approximately 1,200 tons of PCB-contaminated soil was removed and disposed of at a permitted off-site facility.

  6. Site Location Map

  7. Remedial Measures Undertaken in theOU-3 Drainageways To-Date (con’t) • .GE implemented the Area 28 remedial removal action between August 2003 and May 2004, which resulted in removal of approximately 4000 tons of PCB-contaminated soil and sediments from the Valatie Kill. • .A total of approximately 15,000 tons of PCB-contaminated soil and sediments have been removed from the drainageway upstream of Nassau Lake. Effectiveness of the source PCB to Nassau Lake is now being evaluated.

  8. Site Location Map

  9. Five Year Review • Start Date for 5-Year Fish Monitoring: 2006 • Fish Collected in 2006 Represent Baseline Conditions: No longer exhibit short-term adverse environmental impacts caused by intrusive construction activities in Area 28 in 2004 -2005.

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