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In Situ Remediation Technologies and Site Reuse

ConSoil 2005 October 4, 2005 Bordeaux, France Carlos Pachon U.S. Environmental Protection Agency pachon.carlos@epa.gov. In Situ Remediation Technologies and Site Reuse. Technology Innovation Program Technology Transfer Efforts. Why Innovate?. Key drivers in contaminated site restoration:

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In Situ Remediation Technologies and Site Reuse

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  1. ConSoil 2005 October 4, 2005 Bordeaux, France Carlos Pachon U.S. Environmental Protection Agency pachon.carlos@epa.gov In Situ Remediation Technologies and Site Reuse

  2. Technology Innovation Program Technology Transfer Efforts

  3. Why Innovate? • Key drivers in contaminated site restoration: • Cost • Uncertainty • Still a relatively young industry experiencing change in several areas, mainly: • Technology innovation • Advances in project management • Shifting market drivers • This presentation touches on each of these areas • Snap shot of the drivers for innovation • The Triad: Synthesizing practitioner experience in smart project management to reduce cost and uncertainty • Technology innovation: Demand and supply side information • Brownfield Technology & Redevelopment Support Center

  4. $ $ $ $ $ $ $ $ $ $ $ $ $ Innovative Site Management Approaches & The Land Reuse Equation Purchase Costs + Redevelopment Costs vs. Clean Value • Revenues • Resale/asset value • Social/political • Transaction costs • Site prep • Construction • Development • Taxes/admin. • Marketing • Etc., etc., etc.

  5. $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ Innovative Site Management Approaches & The Land Reuse Equation Purchase + Redevelopment vs. Clean Value • Revenues • Resale/asset value • Social/political • Transaction costs • Site prep • Construction • Development • Taxes/admin. • Marketing • Etc., etc., etc. + • Assessment • Cleanup • Liability issues

  6. Real-Time Analytical and Sampling Technologies • Field analytical, rapid sampling, mobile labs, quick turnaround off-site all allow real-time or near real time analysis • Rapid turnaround results support dynamic decision making • Lower costs of field methods support increased density (address sampling uncertainty) • Field results guide confirmation (address analytical uncertainty) • Decision support software can help organize and process data, plan field activities

  7. Subsurface CSM from high density data (DP-MIP sensing) Slide adapted from Columbia Technologies, Inc., 2003

  8. Remedy Types at NPL Sites (FY82-02)* Total Sites(a) = 1,499 No Decision (158) 11% Treatment (931) 62% Containment and Other (410) 27% ROD = Record of Decision *Includes information from an estimated 70% of FY 2002 RODs. (a) NPL sites include current sites and former NPL sites that were deleted or removed from the NPL between FY 1982 and 2002.

  9. Trends in NPL Soil Remedies

  10. NPL Soil Treatment Projects In situ 364 (42%) Ex situ 499 (58%)

  11. In Situ Technologies for Soil Treatment * Includes information from an estimated 70% of FY 2002 RODs.

  12. Groundwater Remedies We’ve broken the P&T “monopoly” • In situ remedies are more mature, diverse and specific • In 1991, 5% in situ GW remedies; in 2002, 24% • Time, experience, and technology are allowing us to optimize the pumping, treating, and monitoring components of long term P&T systems. • As with source control, we are using a “rich” mix of remedies, with a more robust tool box to address each scenario

  13. Groundwater Remedies in The NPL * Each ROD may have multiple remedies

  14. Trends in the % of GW RODs Selecting In Situ Treatment (FY86- 02)* * Includes information from an estimated 70% of FY 2002 RODs.

  15. GW Treatment Remedies in Superfund Sites with P&T, In Situ Treatment, or MNA Selected as Part of a Groundwater Remedy (Total Sites = 851)

  16. Becoming “Main Stream”; In Situ Groundwater Treatment Remedies Selected in2000 -- 2002* N= 66

  17. In Situ Treatment TechnologiesGroundwater • Established • Air Sparging (fuels, organics) • Bioslurping (fuels, organics) • Enhanced Bioremediation (organics, fuels) • Multiphase Extraction (fuels, organics) • Emerging • Chemical oxidation (fuels, organics) • Electrokinetics (metals) • Phytoremediation (organics) • Recirculating Wells (fuels, organics) • Steam stripping (fuels, organics) Permeable Reactive Barriers (metals, organics)

  18. EPA REACH IT System • Meant to be a screening tool to identify potentially applicable innovative technologies and vendors • Open online database released in 1998 • Combined VISITT, VendorFACTs, & ITT systems into a web-based, searchable system (www.epareachit.org) • Remediation And Characterization Innovative Technologies • Ongoing updates and periodic streamlining efforts

  19. Characterization/Monitoring Technologies Listed In EPA REACH IT

  20. Remediation Technologies Listed In EPA REACH IT

  21. CLU-IN Web Site http://clu-in.org Cluin.org

  22. Technology Information ServiceHighlights • Broadcasts monthly e-mail messages to a list of over 21,000. • Highlights events of interest to site remediation and site assessment professionals. • Describes new products and provides instructions on how to obtain them.

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