Mr. Truex has ten years of experience in bioremediation research and field applications. He provides technical direction and management for field design and operation of accelerated in situ bioremediation systems, evaluations and applications of natural attenuation, and remediation-related research projects. Field experience in accelerated bioremediation and natural attenuation includes work at Department of Energy, Department of Defense, and private remediation sites. Research experience includes determining microbial reaction kinetics, examining contaminant partitioning behavior, and refinement of the Reactive Transport in 3 Dimensions (RT3D) reactive transport code.

Since 1997, Mr. Truex has also been a technical liaison between Pacific Northwest National Laboratory and Bechtel Hanford Inc (BHI). BHI is responsible for implementing soil and groundwater remediation at the Department of Energy Hanford Site. In this liaison position, Mr. Truex provides technical and programmatic support for assessing and implementing improved remediation and characterization technologies.

• M.S. Environmental Engineering, Washington State University (Pullman, Washington), 1991
• B.S. Mechanical Engineering, University of Illinois (Urbana, Illinois), 1986

• In Situ Biofilm Coupon Device:  Patent # 5,641,642

Truex, M.J., C.D. Johnson, J.R. Spencer, and T.P Clement, "Evaluating Natural Attenuation Of Chlorinated Solvents At A Complex Site", accepted for presentation, Remediation of Chlorinated and Recalcitrant Compounds, Monterey, CA, May 20-23, 2002.

Spencer, J.R., C.D. Johnson, M.J. Truex, and T.P. Clement. "Modeling Biological Transformation of Chlorinated Ethanes and Ethenes in Support of Natural Attenuation", accepted for presentation, Remediation of Chlorinated and Recalcitrant Compounds, Monterey, CA, May 20-23, 2002.

Truex, M.J., C.D. Johnson, D.P. Leigh, and S.S. Granade, "Pulsed Injection Flow Strategy For Aerobic Co-Metabolism Of Vinyl Chloride", accepted for presentation, Remediation of Chlorinated and Recalcitrant Compounds, Monterey, CA, May 20-23, 2002.

Johnson, C.D., M.J. Truex, and SS. Granade, "In Situ Treatability Test for Biotransformation of High-Concentration Chloroethene Contamination", accepted for presentation, Remediation of Chlorinated and Recalcitrant Compounds, Monterey, CA, May 20-23, 2002.

Huesemann, M.H., T.S. Hausmann, T.J. Fortman, and M.J. Truex, "Thermophilic Biodegradation In Conjunction with In Situ Thermal Soil Treatment", accepted for presentation, Remediation of Chlorinated and Recalcitrant Compounds, Monterey, CA, May 20-23, 2002.

Truex, M.J., C.J. Murray, C.R. Cole, R.J. Cameron, M.D. Johnson, R.S. Skeen, and C.D. Johnson. 2001. "Assessment of Carbon Tetrachloride Groundwater Transport in Support of the Hanford Carbon Tetrachloride Innovative Technology Demonstration Program". PNNL-13560, Pacific Northwest National Laboratory, Richland, WA.

Riley, R.G., C.J. Thompson, M.H. Huesemann, Z. Wang, B. Peyton, T. Fortman, M.J. Truex, and K.E. Parker. 2001. "Artificial Aging of Phenanthrene in Porous Silicas Using Supercritical Carbon Dioxide". Environ. Sci. Technol 35:3707-3712.

Z. Wang, D.M. Friedrich, M.R. Beversluis, S.L. Hemmer, A.G. Joly, M.H. Huesemann, M.J. Truex, R.G. Riley, C.J. Thompson and B.M. Peyton. 2001. "A Fluorescence Spectroscopic Study of Phenanthrene Sorption on Porous Silica". Environ. Sci. Technol. 35:2710-2716.

Clement, T.P., M.J. Truex, and P. Lee. 2001. "Application of U.S. EPA’s Natural Attenuation Screening Process at a Hazardous Waste Site in Louisiana: Part 1 – Biodegradation Assessment". submitted to J. Contam. Hydrol.

Clement, T.P. and M.J. Truex. 2001. "Application of U.S. EPA’s Natural Attenuation Screening Process at a Hazardous Waste Site in Louisiana: Part 2 – Fate and Transport Assessment". submitted to J. Contam. Hydrol.

Huesemann, M.H., T.J. Fortman , R.G. Riley, C.J. Thompson, Z. Wang, M.J. Truex , and B.M. Peyton. 2001. "Slow Desorption of Phenanthrene from Silica Particles: Influence of Pore Size, Pore Water, and Aging Time". submitted to J. Contam. Hydrol.

Petersen, S.W., R.J. Cameron, M.D. Johnson, and M.J. Truex. 2001. "Technology Alternatives Baseline Report for the 618-10 and 618-11 Burial Grounds, 300-FF-2 Operable Unit" BHI-01484, Bechtel Hanford Inc., Richland, WA.

Truex, M.J., T.P. Clement, and R.S. Skeen. 1999. "Initial Screening Assessment of Natural Attenuation Potential at the Brooklawn Site" PNWD-3016, Battelle Pacific Northwest Division, Richland, WA..

Patello, G.K., M.J. Truex, and K.D. Wiemers. 1999. "Low-Activity Waste and High-Level Waste Feed Processing Data Quality Objectives" PNNL-12163, Pacific Northwest National Laboratory, Richland, WA.

April, J.G., L.M. Bagaasen, and M.J. Truex. 1999. "Technology Alternatives Baseline: 618-4 Burial Ground Drum Treatment and Disposal Project" BHI-01275, Bechtel Hanford Inc., Richland, WA.

Truex, M.J. and K.D. Wiemers. 1998. "Low-Activity Waste Feed Data Quality Objectives" PNNL-12064, Pacific Northwest National Laboratory, Richland, WA.

Hooker, B.S., R.S. Skeen, M.J. Truex, C.D. Johnson, B.M. Peyton, and D.B. Anderson. 1998. "In Situ Bioremediation of Carbon Tetrachloride: Field Test Results." Bioremediation Journal, 3: 181-193.

Workman, D.J., S.L. Woods, Y.A. Gorby, J.K. Fredrickson, and M.J. Truex. 1997. "Microbial Reduction of Vitamin B12 by Shewanella alga Strain BrY with Subsequent Transformation of Carbon Tetrachloride." Environ. Sci. Technol., 31: 2292-2297.

Clement, T.P., M.J. Truex, and B.S. Hooker. 1997. "Two-Well Test Method for Determining Hydraulic Properties of Aquifers." Ground Water, 35:698-703.

Truex, M.J., B.M. Peyton, N.B. Valentine, and Y.A. Gorby. 1997. "Kinetics of U(VI) Reduction by a Dissimilatory Fe(III)-Reducing Bacterium Under Non-Growth Conditions." Biotechnol. and Bioeng., 55:490-496.

Huesemann, M.H. and M.J. Truex. 1996. "The Role of Oxygen Diffusion in Passive Bioremediation of Petroleum Contaminated Soils." J. Haz. Materials 51:93-113.

Truex, M.J. 1995. "In Situ Bioremediation Destroys Carbon Tetrachloride in a Contaminated Aquifer." Environmental Solutions. 8(11):30-33.

Peyton, B.M., M.J. Truex, R.S. Skeen, and B.S. Hooker. 1995. "The Use of Bench- and Laboratory-Scale Data for Design of an In Situ Carbon Tetrachloride Bioremediation System." In: Bioremediation of Chlorinated Solvents, R. E. Hinchee, A. Leeson, and L. Semprini (eds.), Battelle Press, Columbus, OH, 111-116.

Skeen, R.S., M.J. Truex, J.N. Petersen, and J.S. Hill. 1994. "A Novel Reactor for Monitoring Biodegradation." Environ. Prog. 13:174-177.

Szecsody, J. E., F. J. Brockman, B. D. Wood, G. P. Streile, and M. J. Truex. 1994. "Transport and Biodegradation of Quinoline in Horizontally Stratified Porous Media." J. Contam. Hydrol. 15:277-304.

Truex, M. J., R. S. Skeen, S. M. Caley, and D. J. Workman. 1994. "Comparative Efficiency of Microbial Systems for Destroying Carbon Tetrachloride Contamination in Hanford Ground Water," In: Bioremediation of Chlorinated and Polycyclic Aromatic Hydrocarbon Compounds, R. E. Hinchee, L. Semprini, and S. K. Ong (eds.), Lewis Publishers, Ann Arbor, MI, 80-85.

Truex, M.J., C.D. Johnson, D.R. Newcomer, L.A. Doremus, B.S. Hooker, B.M. Peyton, R.S. Skeen, and A. Chilakapati. 1994. "Deploying In Situ Bioremediation at the Hanford Site." In: In-Situ Remediation: Scientific Basis for Current and Future Technologies, Part 1, G.W. Gee and N.R. Wing (eds.), Battelle Press, Richland, WA, 209-231.

Hooker, B.S., R.S. Skeen, M.J. Truex, and B.M. Peyton. 1994. "A Demonstration of In Situ Bioremediation of CCl₄ at the Hanford Site." In: In-Situ Remediation: Scientific Basis for Current and Future Technologies, Part 1, G.W. Gee and N.R. Wing (eds.), Battelle Press, Richland, WA, 281-292.

Truex, M.J., D.R. Brown, and D.C. Elliott. 1993. "Cost/Benefit Analysis Comparing Ex Situ Treatment Technologies for Removing Carbon Tetrachloride from Hanford Ground Water." PNL-8334, Pacific Northwest Laboratory, Richland, Washington.

Truex, M.J., F.J. Brockman, D.L. Johnstone, and J.K. Fredrickson. 1992. "Effect of Starvation on the Induction of Quinoline Degradation for a Subsurface Bacterium in a Continuous-Flow Column." Appl. Environ. Microbiol. 58:2386-2392.