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Expediting Brownfields Redevelopment by Applying TRIAD for Source Area Delineation utilizing the Membrane Interface Probe ...
Overview  <ul><li>Brownfields </li></ul><ul><li>TRIAD Approach </li></ul><ul><li>MIP Technology </li></ul><ul><li>Site Bac...
Brownfields  <ul><li>Brownfields have been defined as underused or abandoned properties often located in urban and economi...
Triad Approach  <ul><li>Objective--Management of Decision Uncertainty </li></ul><ul><li>TRIAD Elements </li></ul><ul><ul><...
Benefits of TRIAD <ul><li>Expedites complete delineation  </li></ul><ul><li>Avoids late discovery of unknown sources </li>...
Critical Components of Successful Implementation of TRIAD <ul><li>Accurate daily Interpretation of real-time data </li></u...
Confirmatory Sampling to Confirm Plume Geometry <ul><li>Properly place confirmatory samples (not just random percentage of...
MIP Setup
Membrane Interface Probe (MIP) How It Works <ul><li>Measures volatile organic compounds (VOCs)  </li></ul><ul><li>Semi-per...
MIP SYSTEM
MIP Detection Limits MIP DETECTORS Contaminates  Detection Limit Carrier Gas PID BTEX 1 PPM Nitrogen, Helium FID Methane, ...
Site Background <ul><li>An 85-acre municipal landfill is located within a 200- acre brownfield development area (BDA).  </...
Brownfield Site Map
Systematic Planning - Transects
MIP Locations <ul><ul><li>Real-time Measurement </li></ul></ul>
Sampling Locations <ul><ul><li>Dynamic Work Strategies </li></ul></ul>
FID ECD PID Conductivity MIP Log <ul><ul><li>Real-time Measurement </li></ul></ul>Pre log  Response Post log  Response
Lithology Cross-Section
Solid Lithology Model
ECD Plan View Animation
 
3
3
Clay 1X Clean up Standard
Solid and Fence Model 1X
 
Sustainable Attributes <ul><li>MIP fuel was switched from diesel to biodiesel, which is a clean burning alternative fuel, ...
CONCLUSIONS <ul><li>The use of the MIP as part of a TRIAD approach was proven an effective tool for horizontal and vertica...
Site Photos
Site Photos
Site Photos
Questions and Answers <ul><ul><li>Brad Carlson,  [email_address]  (813) 731-5916 </li></ul></ul><ul><ul><li>Maria Watt, Wa...
Groundwater Concentrations
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Zebra/CDM/NJDEP HAL Triad Presentation

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Zebra/CDM/NJDEP HAL Triad Presentation

  1. 1. Expediting Brownfields Redevelopment by Applying TRIAD for Source Area Delineation utilizing the Membrane Interface Probe Brad Carlson ZEBRA ENVIRONMENTAL Maria Watt, Melissa Koberle and Jessica Beattie Camp Dresser & McKee, Inc. Edison NJ More
  2. 2. Overview <ul><li>Brownfields </li></ul><ul><li>TRIAD Approach </li></ul><ul><li>MIP Technology </li></ul><ul><li>Site Background </li></ul><ul><li>Results </li></ul><ul><li>Sustainable Attributes (Green Project) </li></ul><ul><li>Conclusion </li></ul>
  3. 3. Brownfields <ul><li>Brownfields have been defined as underused or abandoned properties often located in urban and economically distressed areas that may contain environmental contamination. </li></ul><ul><li>425,000 brownfield sites in the United States </li></ul><ul><li>Remediation, redevelopment, and reuse of these properties have been discouraged by real or perceived environmental contamination </li></ul><ul><li>State and federal Brownfields funding as well as liability limitation has spurred the redevelopment of these impaired sites nationwide. </li></ul>
  4. 4. Triad Approach <ul><li>Objective--Management of Decision Uncertainty </li></ul><ul><li>TRIAD Elements </li></ul><ul><ul><li>Systematic Planning </li></ul></ul><ul><ul><li>Dynamic Work Strategies </li></ul></ul><ul><ul><li>Real-time Measurement </li></ul></ul>
  5. 5. Benefits of TRIAD <ul><li>Expedites complete delineation </li></ul><ul><li>Avoids late discovery of unknown sources </li></ul><ul><li>Accurate evaluation of risks, remedial alternatives and remedy selection </li></ul><ul><li>Optimize design for increased efficiency </li></ul><ul><li>Increased probability of remedial success </li></ul>
  6. 6. Critical Components of Successful Implementation of TRIAD <ul><li>Accurate daily Interpretation of real-time data </li></ul><ul><li>Use of lines of evidence in evaluation </li></ul><ul><li>Properly place confirmatory samples (not just random percentage of samples) </li></ul><ul><li>Accurately select location of confirmatory samples to confirm plume geometry (high, mid, low range) </li></ul>
  7. 7. Confirmatory Sampling to Confirm Plume Geometry <ul><li>Properly place confirmatory samples (not just random percentage of samples) </li></ul><ul><li>Confirmatory Sampling Collected at </li></ul><ul><ul><li>Source Zone (high levels) </li></ul></ul><ul><ul><li>Core Zone (medium levels) </li></ul></ul><ul><ul><li>Distal Zone (low levels-fringe of plume-defines complete delineation) </li></ul></ul><ul><li>Well Distributed Database Yields Accurate Assessment of Risk and Contaminant Mass Removal Requirements </li></ul>
  8. 8. MIP Setup
  9. 9. Membrane Interface Probe (MIP) How It Works <ul><li>Measures volatile organic compounds (VOCs) </li></ul><ul><li>Semi-permeable membrane attached to direct push probe. </li></ul><ul><li>Carrier gas is sent down tubing through the probe rods. </li></ul><ul><li>Membrane heated to 250 o F </li></ul><ul><li>Contamination (soil, vapor or ground water) diffuses through polymer membrane on the probe </li></ul><ul><li>Transported to surface via inert carrier gas. </li></ul>
  10. 10. MIP SYSTEM
  11. 11. MIP Detection Limits MIP DETECTORS Contaminates Detection Limit Carrier Gas PID BTEX 1 PPM Nitrogen, Helium FID Methane, Butane NA Nitrogen, Helium ECD Chlorinated Substances 250PPB Nitrogen
  12. 12. Site Background <ul><li>An 85-acre municipal landfill is located within a 200- acre brownfield development area (BDA). </li></ul><ul><li>The BDA consists of eight abandoned brownfield sites along 2 miles of the New Jersey shoreline along the Delaware River, overlooking the Philadelphia skyline and within a highly urbanized area of New Jersey. </li></ul><ul><li>The unlined landfill operated from 1952 until </li></ul><ul><li>An area of industrial chemical waste material saturated with chlorobenzene (CB) and dichlorobenzenes (DCB) was identified in the southeast portion of the landfill. </li></ul><ul><li>This material is approximately 20 to 30 feet below ground surface (bgs) and acts as a continuing source of groundwater contamination and localized soil vapor contamination. </li></ul>
  13. 13. Brownfield Site Map
  14. 14. Systematic Planning - Transects
  15. 15. MIP Locations <ul><ul><li>Real-time Measurement </li></ul></ul>
  16. 16. Sampling Locations <ul><ul><li>Dynamic Work Strategies </li></ul></ul>
  17. 17. FID ECD PID Conductivity MIP Log <ul><ul><li>Real-time Measurement </li></ul></ul>Pre log Response Post log Response
  18. 18. Lithology Cross-Section
  19. 19. Solid Lithology Model
  20. 20. ECD Plan View Animation
  21. 22. 3
  22. 23. 3
  23. 24. Clay 1X Clean up Standard
  24. 25. Solid and Fence Model 1X
  25. 27. Sustainable Attributes <ul><li>MIP fuel was switched from diesel to biodiesel, which is a clean burning alternative fuel, produced from domestic, renewable resources. Biodiesel is biodegradable, nontoxic, and essentially free of sulfur and aromatics (NBB, 2009). </li></ul><ul><li>The MIP, Geoprobe® track unit, and support vehicles used 5-percent biodiesel as their main fuel. The project also involved the replacement of all petroleum-based hydraulic fluids with bio-hydraulic fluids. These are non-hazardous, high-performance, hydraulic fluids engineered as drop-in replacements for petroleum-based hydraulic fluid formulas. </li></ul><ul><li>Using the TRIAD approach, we were able to expedite characterization with fewer borings. Instead of having to grid the site with borings, we were able to target specific sampling locations and depths using real-time data. We completed full delineation of the source area within a 6-week field program as opposed to several phased investigations extending over several months to years. </li></ul>
  26. 28. CONCLUSIONS <ul><li>The use of the MIP as part of a TRIAD approach was proven an effective tool for horizontal and vertical delineation of hot spots and source areas at the landfill. The real-time data allowed placement of screening and sampling points more effectively, and resulted in a well-defined source areas to be further analyzed for remedial feasibility </li></ul><ul><li>Because of detector sensitivity limitations, the MIP may not be appropriate at all sites. The tool is geared toward sites with known contamination at concentrations above detection limits. In this investigation, it was critical that the temperature be maintained above 132ºC (boiling point of CB) in order that it would volatilize and be detected by the ECD. The MIP contributed to meeting sustainability objectives for the project, and overall project objectives were met on an expedited basis due to real-time field measurements and dynamic work strategies. </li></ul><ul><li>Reduction of the investigation’s carbon footprint included using biodiesel, decreasing the amount of IDW produced from soil and groundwater sampling (e.g., bottleware, shipping materials, and decontamination fluids), by only collecting confirmatory samples, and requiring one mobilization and demobilization. This was aided by streamlining the investigation using real-time screening data during the TRIAD approach. </li></ul>
  27. 29. Site Photos
  28. 30. Site Photos
  29. 31. Site Photos
  30. 32. Questions and Answers <ul><ul><li>Brad Carlson, [email_address] (813) 731-5916 </li></ul></ul><ul><ul><li>Maria Watt, WattMD@cdm.com (732) 590-4659 </li></ul></ul><ul><ul><li>Jessica Beattie, [email_address] (732) 590-4609 </li></ul></ul>THANK YOU!
  31. 33. Groundwater Concentrations

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