1. 1June 19, 2002 Bioventing (7) Incineration (18) Soil Vapor Extraction (33) Bioremediation (16) Land Treatment (9) Composting (4) Slurry-Phase Bioremediation (3) Thermal Desorption (25) Electrokinetics (5) Physical/Chemical Treatment (17) Physical Separation/Segmented Gate System (7) Solidification/Stabilization (3) Solvent Extraction (3) Vitrification (2) Acid Leaching (1) Soil Washing (1) Other (11) Phytoremediation (4) Vitrification (2) Fracturing (2) Chemical Reduction (1) Drilling (1) Lasagna™ (1) FRTR Soil Remediation Case Studies Ex Situ Soil Treatment In Situ Soil Treatment Thermal Treatment (5)

2. 2June 19, 2002 Pump and Treat (44) Drinking Water Treatment (3) Flushing (6) Monitored Natural Attenuation (6) Multi-Phase Extraction (7) Chemical Oxidation (8) Air Sparging (11)) Permeable Reactive Barrier (13) Bioremediation (32) Other (12) In-Well Air Stripping (3) Phytoremediation (3) Thermal Treatment (3) Bioslurping (1) Constructed Wetlands (1) Membrane Filtration (1) FRTR Groundwater Remediation Case Studies Ex Situ Groundwater Treatment In Situ Groundwater Treatment

3. 3June 19, 2002 51 92 1 33 27 12 38 21 9 9 3 18 19 2 13 3 5 2 2 0 20 40 60 80 100 120 140 160 FRTR Remediation Case Studies — Contaminants and Media Treated * * Some case studies address more than one type of media/contaminant Contaminant Types Number of Case Studies Chlorinated Solvents Metals BTEX and/ or TPH PAHs Radioactivity PCBs Pesticides/ Herbicides Explosives SoilGroundwaterDebris/Solid 34

4. 4June 19, 2002 22 11 7 21 18 0 24 1 21 12 2 1 43 18 14 35 28 1 26 1 6 0 5 10 15 20 25 30 35 40 45 FRTR Remediation Case Studies — Full-Scale and Field Demonstration Projects Technology Types Number of Projects Soil Vapor Extraction (33) Other In Situ Soil Treatment (28) Incineration (on-site) (18) Thermal Desorption (25) Other Ex Situ Soil Treatment (33) Drinking Water Treatment (3) Pump and Treat (44) In Situ Groundwater Bioremediation (32) Other In Situ Groundwater Treatment (63) Debris/Solid Media Treatment (27) Containment (7) Full-Scale Field Demonstration 1

5. 5June 19, 2002 FRTR Site Characterization and Monitoring Case Studies (Based on 110 total reports) Inorganic Chemical Characterization Organic Chemical Characterization Geophysical Techniques-Surface (EM, Radiation, GPR) Radionuclide Characterization PCB/Pesticides Characterization Strategies for Field-Based Site Characterization Explosives Characterization Unexploded Ordnance Characterization Barriers/Liners/Capping Cone Penetrometer/ Drilling/Direct Push Geophysical Techniques- In Situ/Borehole Type of Technology Number of Case Studies 20 18 13 12 11 6 5 33 1 0 5 10 15 20 25