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Contingency Plan Comparisons

Contingency Plan Comparisons. Fire Data Evaluation Report _______________________________________________________________________ Temperatures over 165°F indicate heating event CO levels above 1000 ppm indicate subsurface landfill fire Republic’s Contingency Plan

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Contingency Plan Comparisons

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  1. Contingency Plan Comparisons

  2. Fire Data Evaluation Report _______________________________________________________________________ • Temperatures over 165°F indicate heating event • CO levels above 1000 ppm indicate subsurface landfill fire Republic’s Contingency Plan _______________________________________________________________________ • Temperatures must be 220°F before action is taken. • Difference of 55°F • CO levels must be 3000ppm before action is taken • 3X higher CO levels

  3. Fire Data Evaluation Report _______________________________________________________________________ • Fire has moved from 3ft/day but currently moves .5ft/day • Suggests Capping the North Quarry NOW • North Quarry should NOT be used as fire break Republic’s Contingency Plan _______________________________________________________________________ • Only using the minimum rate of 1ft/day to determine time and distance from fire hitting the wastes. • Waiting until Trigger 2 to complete North Quarry cap

  4. Fire Data Evaluation Report _______________________________________________________________________ • Jan. 22, 2013: Dr. Stark recommended a Vertical Barrier Wall be built between the neck and the North Quarry. • Thalhammer re-recommends to build the wall within the next 60 days (June 17, 2013). Republic’s Contingency Plan _______________________________________________________________________ • If the fire reaches Trigger 3, halfway into the North Quarry, Republic intends to dig an isolation barrier inside of OU-1.

  5. Isolation Barrier Placement The isolation barrier “should completely isolate potentially combustible materials between the Bridgeton Landfill and Operable Unit 1.”(Thalhammer, 26) The contingency plan suggests cutting the isolation barrier INSIDE of OU-1, the location of the wastes.

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