In-Situ Chemical Oxidation (ISCO) Workshop

Agenda

9:15 Welcome and Logistics – Jennifer Griffith, NEWMOA

9:30 ISCO Overview [PDF] – Doug Larson, Geosyntec

• Chemistry
• Applicable Contaminants and Site Conditions
• Oxidant Selection
• Remediation Timeframes
• Safety Considerations (including Homeland Security requirements)

10:15 Site Characterization and Data Needs [PDF] – Ian Osgerby, US Army Corps of Engineers

• Contaminants
• Hydrogeology
• How ISCO might affect Ongoing Anaerobic Processes
• Mobilization of Hexavalent Chromium

11:00 Break

11:15 Treatability Testing [PDF] – Gerald Cresap, Groundwater & Environmental Services (GES)

• Bench-Scale Testing
• Interpreting the Results
• Designing a Pilot Study Using Bench-Scale Data
• Case Study and Examples

12:00 Lunch – Provided

12:45 System Design [PDF] – Mike Marley and/or Brant Smith, XDD

• Scaling up from Bench Scale to Pilot Scale to Full Scale
• Delivery and Contact
• Cost Issues

1:30 Implementation and System Operation [PDF] – Tim Andrews, Nobis Engineering and Ed Hathaway, US EPA Region 1

• Monitoring
• Troubleshooting and Lessons Learned
• Rebound – Anticipating, Planning For, Determining, Reacting To

2:15 Case Study

• Autopsy of a Small UST Site in Bedrock: Implications for ISCO Remediation – Bill Brandon, US EPA Region 1
  • Part One [PDF]
  • Part Two [PDF]

2:45 Break

3:00 Monitoring of ISCO Treatment with Time-Series Geophysical Surveys [PDF] – Philip Harte, US Geological Survey

• Borehole Electromagnetic and Surface DC Resistivity
• Case Study Assessment of ISCO Effectiveness in Recalcitrant Zones

3:30 Case Study

• Dry Cleaner Site in Vermont [PDF] – Richard Spiese, VT DEC

4:00 Adjourn