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Accelerated Remediation Technologies, Inc.

ART. Accelerated Remediation Technologies, Inc. “Soil and Groundwater Remediation is our art” Mohamed Odah , Ph.D., P.E., ART (913) 438-4384 Ext. 102 Todd Giffrow M.S., ART 612-202-8644 WWW.ARTinwell.com. Technology Overview. Integrated, synergistic technology suite

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Accelerated Remediation Technologies, Inc.

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  1. ART Accelerated Remediation Technologies, Inc. “Soil and Groundwater Remediation is our art” Mohamed Odah, Ph.D., P.E., ART (913) 438-4384 Ext. 102 Todd Giffrow M.S., ART 612-202-8644 WWW.ARTinwell.com

  2. Technology Overview • Integrated, synergistictechnology suite • Contaminated soil and groundwater • ART Integrated Remediation System – proprietary PATENTED technology • Minimal site impact • Expedite site closure • Utilizes proven technologies

  3. IntroducingART Integrated Remediation System • In-well Air Stripping • Air Sparging • Soil Vapor Extraction • Bioremediation/Oxidation • Dynamic Subsurface Circulation • Plus, UV & Ozone Injection proprietary - patented

  4. ` Air Sparging SoilVaporExtraction In-Well Air Stripping Grade Simplified System Diagram Vault Pump

  5. Sparging Soil Vapor Extraction Cleaner, low density water Cleaner, low density water Air Stripping/Hydraulic Delivery Groundwater level from sparging and vacuum Groundwater level from sparging Negative Gradient Negative Gradient ` Grade Amendments Amendments Vault Effects Dynamic Subsurface Circulation™ Pump

  6. Installation Photos

  7. Installation Photos

  8. MTBE/BTEX/TPH Case History Site Location: Gardena, California Contaminants: BTEX/TPH/MTBE Site History: Former gas station, now major retail chain store Soil types: silty to clayey sand with sandy silt and sandy clay layers Groundwater: 25 feet bgs Remediation History: Dual phase SVE/sparge/pump and treat installed in 1998 Client Goals: Jump start stalled remediation

  9. 90 Day Demo Results Average mass removal over the time period was approx. 12.5 lbs/day

  10. MTBE/BTEX/TPH Site Closure Site Location: Isleton, California Contaminants: Gasoline, Diesel, MTBE Site History: Tanker spill (750 gallons), downgradient receptors Soil types: Sands, silts Groundwater: fluctuating 10-15 feet bgs Client Goals: Quick response, fast remediation, protect drinking water wells

  11. Cleanup Std. 13 ppb MTBE Remediation Summary • Reduced MTBE to below primary, secondary cleanup standards • ART system shut down in August 2003 • Sampling to identify rebound • Testing confirmed no rebound • Concentrations continued to decrease • Well pulled, closure letter received

  12. New Jersey BTEX Demo • Site Location:New Jersey • Contaminants:BTEX • Site Description: Shallow groundwater – silty, non-homogeneous sand formation • Remediation History: 6 years of Air Sparging / SVE; Levels reached asymptote • Corrective Action: Retrofitted ART Technology to existing blower, compressor, and off-gas treatment; 2 ART wells installed in Sept. 04

  13. ART Remediation Results 99 99 98 99 99 99 99 99 99 98 78 Days  Average 98% Contaminant Reduction

  14. TCE Case History • Site Location: South Bend, Indiana • Contaminants: TCE • Site History: Aerospace parts manufacturing facility • Site Description: Shallow groundwater “hot spot”; soil source area concern • Client Goals: Voluntary Cleanup Program

  15. System Recovery Rates • Recovered > 450 lbs. in 34 days (source 350 pounds estimated) • Total VOCs recovered: 1200 pounds to date • After 2 years, only one MW is slightly above MCLs

  16. Groundwater Flow Potential Remedy Configuration ART Source Control ART Flow Through Treatment ART Well

  17. PCE Case History • Site Location: Colorado • Contaminants: tetrachloroethene (PCE) – 4 mile plume impacting surface water/drinking water wells • Site History: Industrial manufacturing facility • Soil Types: fine, silty, heterogeneous sand; steep gradient • Groundwater: 3 ft saturated thickness; paleo channels • Regulatory agency: State of Colorado - Significant regulatory scrutiny – lawsuits pending • Client’s Goals: pilot test numerous “new” technologies and select remedy

  18. Demo Results Current Site Wide Status • Significant reduction in PERC/7 weeks • Outperformed: SVE, P&T, AS, Anaerobic Degradation Compound injection • “Radius of Influence” about 50 feet • Pleased clients/consultants • Phase II: 15 additional ART wells installed • Source control – two areas • Downgradient flow through treatment cell(s) • 85% reduction in contamination leaving source area in first 6 months operation

  19. PCE Frac Bedrock Site Closure • Site location:Allentown, PA • Contaminants:PCE at 403 ppb • Site History: Industrial dry cleaning facility • Soil type: Silty clay underlain by dolomite • Groundwater:GW at 90 feet, secondary porosity in fractured bedrock • Regulatory agency: PA DEP • Client’s Goals: Retrofit wells to ART Tech

  20. Action Level PCE Fractured Bedrock PCE Concentrations 500 400 300 Micrograms/liter 200 100 0 Months Feb 2002 Nov 2004 Latest Results @ND

  21. Final Results • “Radius of Influence” at least 40 feet in fractured bedrock • Proves significant reduction of lower levels in very challenging setting • Reduction in PERC to below Action Level in less than 9 months • Reached ND within two years • Received letter of closure from PADEP

  22. 1,4-Dioxane.. Facts • Henry Const. 4.88 x 10-6 atm.m3/mole 10-7 < H < 10-5 volatilize slowly • Stripping rate > 30% • Biodegradation potential ???

  23. 100 ppm 70 ppm Once through stripping of 1,4 Dioxane Based on: 30% Air stripping efficiency of 1,4 dioxane Not acceptable!

  24. 100 ppm 50 ppm 25 ppm 12.5 ppm 6.25 ppm 3.12 ppm 1.56 ppm 0.78 ppm 0.39 ppm ART Well ART Removal Rate Approximate ART Efficiency 30% Air stripping 20% In-well sparging 50% Total 9 In-well stripping passes >99% removal

  25. Sparging Soil Vapor Extraction Cleaner, low density water Cleaner, low density water Groundwater level from sparging and vacuum Groundwater level from sparging Negative Gradient Negative Gradient ` Grade Amendments Amendments Vault Effects Pump

  26. 1,4 Dioxane Case History • 1,4 dioxane and VOC impacted site • Bedrock overlain by saprolitic soils • Levels reached asymptote • Numerous technologies screened • ART demonstration project • Selection based on past recalcitrant/VOC performance history

  27. 1,4 Dioxane Demo Results • 1,4 Dioxane vapor concentrations exceeded 1.1 PPMV • 2.25 pounds removed

  28. AS/SVE vs. ART – Total VOC • ART system (one well) outperformed the AS/SVE system (six AS and nine SVE wells operating since ‘94).

  29. Technology Limitations • Hydraulic Conductivity • 10-5 cm/sec or go to LowPerma Technology • Mechanical means to move water • Groundwater Depth • Can well be completed above grade?

  30. The LowPerma Technology • In-well Air Sparging • Soil Vapor Extraction • Bioremediation/Oxidation • Dynamic Subsurface Circulation • Plus, amendments (when necessary)

  31. AcceleratedRemediation Technologies, Inc.

  32. AcceleratedRemediation Technologies, Inc. Check Valve - water in

  33. AcceleratedRemediation Technologies, Inc.

  34. The Question Is… Why rely on only one… when you can install more than six technologies for the same cost!?

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