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Ecology

Brad Fritz

Brad Fritz

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352

Biography

Brad has spent his entire professional career at PNNL working on a wide variety of research and development projects. After initially working on Hanford Site projects associated with environmental monitoring and land release, Brad transitioned into other environmental research projects. As evidenced by his publication record (below), these projects spanned a variety of media and scales, ranging from regional atmospheric modeling and monitoring to groundwater-surface water interaction and groundwater remediation. The majority of these environmental projects were field-based, which led to an education in systems engineering from the school of hard knocks. This applied experience has since resulted in expanded involvement in National Security projects ranging from detection of underground explosions to development and testing of engineering improvements for radiation detection equipment.

Research Interests

  • Air Quality
  • Contaminant Fate and Transport
  • Hyporheic Zone

Education and Credentials

  • B.S., Eastern Oregon University, Physics - 1999
  • M.S., Washington State University, Environmental Engineering - 2001
  • Certified Engineer-in-Training - 2002

PNNL Publications

2020

  • Fritz B.G., D.P. McFarland, and N. Phillips. 2020. "Evaluation of a Geotechnical Compaction Model to Estimate Sediment Deformation." Archaeological Prospection 27, no. 1:55-62. PNNL-SA-139906. doi:10.1002/arp.1757

2019

  • Johnson C.M., C.E. Aalseth, T.R. Alexander, T.W. Bowyer, V. Chipman, A.R. Day, and S. Drellack, et al. 2019. "Migration of noble gas tracers at the site of an underground nuclear explosion at the Nevada National Security Site." Journal of Environmental Radioactivity 208-209. PNNL-SA-143881. doi:10.1016/j.jenvrad.2019.106047

2018

  • Fritz B.G., C.E. Aalseth, H.O. Back, J.C. Hayes, P.H. Humble, P. Ivanusa, and E.K. Mace. 2018. "Prediction of sub-surface 37Ar concentrations at locations in the Northwestern United States." Journal of Environmental Radioactivity 181. PNNL-SA-124417. doi:10.1016/j.jenvrad.2017.10.005

2017

  • McIntyre J.I., C.E. Aalseth, T.R. Alexander, H.O. Back, B.J. Bellgraph, T.W. Bowyer, and V.D. Chipman, et al. 2017. "Measurements of Argon-39 at theU20az Underground Nuclear Explosion Site." Journal of Environmental Radioactivity 178-179. PNNL-26326. doi:10.1016/j.jenvrad.2017.07.013

2016

  • Duncan J.P., M.R. Sackschewsky, H.T. Tilden, T.W. Moon, J.M. Barnett, B.G. Fritz, and G.A. Stoetzel, et al. 2016. Pacific Northwest National Laboratory Annual Site Environmental Report for Calendar Year 2015. PNNL-25738. Richland, WA: Pacific Northwest National Laboratory.
  • Fritz B.G., D.G. Abrecht, J.C. Hayes, and D.P. Mendoza. 2016. Soil Gas Sample Handling: Evaluation of Water Removal and Sample Ganging. PNNL-26196. Richland, WA: Pacific Northwest National Laboratory. Soil Gas Sample Handling: Evaluation of Water Removal and Sample Ganging
  • Fritz B.G., R.D. Mackley, and E.V. Arntzen. 2016. "Conducting Slug Tests in Mini-Piezometers." Ground Water 54, no. 2:291-295. PNNL-SA-105423. doi:10.1111/gwat.12335

2015

  • Cameron R.J., B.G. Fritz, C. Hurlbut, R.T. Kouzes, A. Ramey, and R. Smola. 2015. "Fogging in Polyvinyl Toluene Scintillators." IEEE Transactions on Nuclear Science 62, no. 1:368-371. PNNL-SA-105192. doi:10.1109/TNS.2015.2390076
  • Duncan J.P., M.R. Sackschewsky, H.T. Tilden, J. Su-Coker, J.L. Mendez, M.Y. Ballinger, and B.G. Fritz, et al. 2015. Pacific Northwest National Laboratory Annual Site Environmental Report for Calendar Year 2014. PNNL-24668. Richland, WA: Pacific Northwest National Laboratory. Pacific Northwest National Laboratory Annual Site Environmental Report for Calendar Year 2014
  • Fritz B.G., J.M. Barnett, S.F. Snyder, L.E. Bisping, and J.P. Rishel. 2015. "Development of criteria used to establish a background environmental monitoring station." Journal of Environmental Radioactivity 143. PNNL-SA-107340. doi:10.1016/j.jenvrad.2015.02.010
  • Tran T.T., P.J. Jensen, B.G. Fritz, F.C. Rutz, and R. Devanathan. 2015. Evaluation of DUSTRAN Software System for Modeling Chloride Deposition on Steel Canisters. PNNL-24500. Richland, WA: Pacific Northwest National Laboratory. Evaluation of DUSTRAN Software System for Modeling Chloride Deposition on Steel Canisters
  • Truex M.J., V.R. Vermeul, D. Adamson, M. Oostrom, L. Zhong, R.D. Mackley, and B.G. Fritz, et al. 2015. "Field Test of Enhanced Remedial Amendment Delivery Using a Shear-Thinning Fluid." Ground Water Monitoring and Remediation 35, no. 3:34-45. PNNL-SA-101736. doi:10.1111/gwmr.12101
  • Zheng F., R. Diver, D.D. Caldwell, B.G. Fritz, R.J. Cameron, P.H. Humble, and W.E. TeGrotenhuis, et al. 2015. "Integrated solar thermochemical reaction system for steam methane reforming." Energy Procedia 69. PNNL-SA-104155. doi:10.1016/j.egypro.2015.03.204

2014

  • Bunn A.L., B.G. Fritz, and D.M. Wellman. 2014. 100-OL-1 Operable Unit Field Portable X-Ray Fluorescence (XRF) Analyzer Pilot Study Plans. DOE/RL-2014-38 Rev. 0; PNNL-23471. Richland, WA: Pacific Northwest National Laboratory. 100-OL-1 Operable Unit Field Portable X-Ray Fluorescence (XRF) Analyzer Pilot Study Plans
  • Bunn A.L., B.G. Fritz, B.A. Pulsipher, A.M. Gorton, L.E. Bisping, J.M. Brandenberger, and C. Pino, et al. 2014. 100-OL-1 Operable Unit Pilot Study: XRF Evaluation of Select Pre-Hanford Orchards. PNNL-23868. Richland, WA: Pacific Northwest National Laboratory. 100-OL-1 Operable Unit Pilot Study: XRF Evaluation of Select Pre-Hanford Orchards
  • Duncan J.P., M.R. Sackschewsky, H.T. Tilden, J.M. Barnett, J. Su-Coker, M.Y. Ballinger, and B.G. Fritz, et al. 2014. Pacific Northwest National Laboratory Annual Site Environmental Report for Calendar Year 2013. PNNL-23523. Richland, WA: Pacific Northwest National Laboratory. Pacific Northwest National Laboratory Annual Site Environmental Report for Calendar Year 2013
  • Vermeul V.R., C.E. Strickland, P.D. Thorne, B.N. Bjornstad, R.D. Mackley, M.E. Kelley, and E.C. Sullivan, et al. 2014. "FutureGen 2.0 Monitoring Program: An Overview of the Monitoring Approach and Technologies Selected for Implementation." Energy Procedia 63. PNWD-SA-10395. doi:10.1016/j.egypro.2014.11.438
  • Vermeul V.R., J.E. Szecsody, B.G. Fritz, M.D. Williams, R.C. Moore, and J.S. Fruchter. 2014. "An Injectable Apatite Permeable Reactive Barrier for In Situ 90Sr Immobilization." Ground Water Monitoring and Remediation 34, no. 2:28-41. PNNL-SA-96257.

2013

  • Duncan J.P., M.Y. Ballinger, B.G. Fritz, H.T. Tilden, G.A. Stoetzel, J.M. Barnett, and J. Su-Coker, et al. 2013. Pacific Northwest National Laboratory Annual Site Environmental Report for Calendar Year 2012. PNNL-22691. Richland, WA: Pacific Northwest National Laboratory. Pacific Northwest National Laboratory Annual Site Environmental Report for Calendar Year 2012
  • Fritz B.G., and N.R. Phillips. 2013. "Use of CAP88 PC to infer differences in the chemical form of I-129 emitted from a fuel reprocessing facility." Journal of Environmental Radioactivity 120. PNNL-SA-92940. doi:10.1016/j.jenvrad.2013.01.015

2012

2011

  • Bernacki B.E., N.C. Anheier, A. Mendoza, B.G. Fritz, and T.J. Johnson. 2011. "Visible/Near-Infrared Hyperspectral Sensing of Solids under Controlled Environmental Conditions." In Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XII, April 26, 2011, Orlando, Florida. Proceedings of the SPIE, edited by AW Fountain III and PJ Garnder, 8018, Article No. 80180K. Bellingham, Washington:SPIE. PNNL-SA-79500. doi:10.1117/12.884031
  • Fritz B.G., and R.D. Mackley. 2011. "Author's Reply: Discussion on 'A wet/wet differential pressure sensor for measuring vertical hydraulic gradient'." Ground Water 49, no. 6:782. PNNL-SA-74887. doi:10.1111/j.1745-6584.2011.00801.x
  • Fritz B.G., V.R. Vermeul, J.S. Fruchter, J.E. Szecsody, and M.D. Williams. 2011. 100-NR-2 Apatite Treatability Test: An update on Barrier Performance. PNNL-20252. Richland, WA: Pacific Northwest National Laboratory. 100-NR-2 Apatite Treatability Test: An update on Barrier Performance
  • Simmons M., T.M. Poston, B.G. Fritz, and L.E. Bisping. 2011. Radionuclide Concentrations in Terrestrial Vegetation and Soil Samples On and Around the Hanford Site, 1971 Through 2008. PNNL-20577. Richland, WA: Pacific Northwest National Laboratory. Radionuclide Concentrations in Terrestrial Vegetation and Soil Samples On and Around the Hanford Site, 1971 Through 2008
  • Truex M.J., T. Macbeth, V.R. Vermeul, B.G. Fritz, D.P. Mendoza, R.D. Mackley, and T.W. Wietsma, et al. 2011. "Demonstration of Combined Zero-Valent Iron and Electrical Resistance Heating for In Situ Trichloroethene Remediation." Environmental Science & Technology 45, no. 12:5346-5351. PNNL-SA-76701. doi:10.1021/es104266a
  • Truex M.J., V.R. Vermeul, D.P. Mendoza, B.G. Fritz, R.D. Mackley, M. Oostrom, and T.W. Wietsma, et al. 2011. "Injection of Zero Valent Iron into an Unconfined Aquifer Using Shear-Thinning Fluids." Ground Water Monitoring and Remediation 31, no. 1:50-58. PNNL-SA-70324.
  • Vermeul V.R., B.G. Fritz, J.S. Fruchter, W.J. Greenwood, T.C. Johnson, J.A. Horner, and C.E. Strickland, et al. 2011. 100-NR-2 Apatite Treatability Test: Fall 2010 Tracer Infiltration Test (White Paper). PNNL-20322. Richland, WA: Pacific Northwest National Laboratory. 100-NR-2 Apatite Treatability Test: Fall 2010 Tracer Infiltration Test (White Paper)

2010

2009

2008

  • Fritz B.G., and J.D. Whitaker. 2008. "Evaluation of sprayable fixatives on a sandy soil for potential use in a dirty bomb response." Health Physics 94, no. 6:512-518. PNWD-SA-7879. doi:10.1097/01.HP.0000305822.94646.8e
  • Fritz B.G., and R.D. Mackley. 2008. "A wet/wet differential pressure sensor for measuring vertical hydraulic gradient." Ground Water 48, no. 1:117-121. PNNL-SA-63832.
  • Fritz B.G., R.D. Mackley, E.V. Arntzen, D.P. Mendoza, and G.W. Patton. 2008. Methods for Assessing the Relative Amounts of Groundwater Discharge into the Columbia River and Measurement of Columbia River Gradients at the Hanford Site's 300 Area. PNNL-17836. Richland, WA: Pacific Northwest National Laboratory. Methods for Assessing the Relative Amounts of Groundwater Discharge into the Columbia River and Measurement of Columbia River Gradients at the Hanford Site's 300 Area
  • Shaw W.J., K.J. Allwine, B.G. Fritz, F.C. Rutz, J.P. Rishel, and E.G. Chapman. 2008. "An Evaluation of the Wind Erosion Module in DUSTRAN." Atmospheric Environment 42, no. 8:1907-1921. PNNL-SA-55201. doi:10.1016/j.atmosenv.2007.11.022
  • Truex M.J., V.R. Vermeul, R.D. Mackley, B.G. Fritz, D.P. Mendoza, C.D. Johnson, and R.P. Elmore, et al. 2008. Hanford 100-D Area Biostimulation Soluble Substrate Field Test: Interim Data Summary for the Substrate Injection and Process Monitoring Phases of the Field Test. PNNL-17619. Richland, WA: Pacific Northwest National Laboratory. Hanford 100-D Area Biostimulation Soluble Substrate Field Test: Interim Data Summary for the Substrate Injection and Process Monitoring Phases of the Field Test
  • Vermeul V.R., J.S. Fruchter, B.G. Fritz, R.D. Mackley, D.M. Wellman, and M.D. Williams. 2008. "In-Situ Uranium Stabilization Through Polyphosphate Injection: Pilot-Scale Treatability Test at the 300 Area, Hanford Site - 8187." In Waste Management 2008: HLW, TRU, LLW/ILW, Mixed, Hazardous Wastes & Environmental Management, 1-13. Tucson, Arizona:Arizona Board of Regent. PNNL-SA-58147.
  • Williams M.D., B.G. Fritz, D.P. Mendoza, M.L. Rockhold, P.D. Thorne, Y. Xie, and B.N. Bjornstad, et al. 2008. Interim Report: 100-NR-2 Apatite Treatability Test: Low Concentration Calcium Citrate-Phosphate Solution Injection for In Situ Strontium-90 Immobilization. PNNL-17429. Richland, WA: Pacific Northwest National Laboratory. Interim Report: 100-NR-2 Apatite Treatability Test: Low Concentration Calcium Citrate-Phosphate Solution Injection for In Situ Strontium-90 Immobilization

2007

2006

  • Allwine K.J., F.C. Rutz, W.J. Shaw, J.P. Rishel, B.G. Fritz, E.G. Chapman, and B.L. Hoopes, et al. 2006. DUSTRAN 1.0 User's Guide: A GIS-Based Atmospheric Dust Dispersion Modeling System. PNNL-16055. Richland, WA: Pacific Northwest National Laboratory. DUSTRAN 1.0 User's Guide: A GIS-Based Atmospheric Dust Dispersion Modeling System
  • Fritz B.G. 2006. "Aerosol entrainment from a sparged non-Newtonian slurry." Journal of the Air and Waste Management Association 56. PNNL-SA-45366.
  • Fritz B.G., and G.W. Patton. 2006. "Monitoring Iodine-129 in Air and Milk Samples Collected Near the Hanford Site: An Investigation of Historical Iodine Monitoring Data." Journal of Environmental Radioactivity 86, no. 1:64-77. PNNL-SA-44944.
  • Fritz B.G., F. Khan, and D.P. Mendoza. 2006. "Evaluation of airflow patterns following procedures established by NUREG-1400." Health Physics. Operational Radiation Safety 91, no. 8:S18-S23. PNNL-SA-47754.

2005

2004

  • Fritz B.G., and R.L. Dirkes. 2004. Soil Sampling and Analysis Plan for the McGee Ranch-Riverlands and North Slope Units of the Hanford Reach National Monument. PNNL-14950. Richland, WA: Pacific Northwest National Laboratory. Soil Sampling and Analysis Plan for the McGee Ranch-Riverlands and North Slope Units of the Hanford Reach National Monument
  • Fritz B.G., B.K. Lamb, H. Westberg, R. Folk, B. Knighton, and E. Grimsrud. 2004. "Pilot and Full Scale Measurements of VOC Emissions from Lumber Drying of Inland Northwest Species." Forest Products Journal 54, no. 7-8:50-56. PNNL-SA-36007.
  • Fritz B.G., T.M. Poston, and R.L. Dirkes. 2004. Fitzner/Eberhardt Arid Lands Ecology (ALE) Reserve Soil Sampling and Analysis Plan. PNNL-14633. Richland, WA: Pacific Northwest National Laboratory. Fitzner/Eberhardt Arid Lands Ecology (ALE) Reserve Soil Sampling and Analysis Plan
  • Neitzel D.A., A.L. Bunn, S.D. Cannon, J.P. Duncan, R.A. Fowler, B.G. Fritz, and D.W. Harvey, et al. 2004. Hanford Site National Environmental Policy Act (NEPA) Characterization Report. PNNL-6415 Rev. 16. Richland, WA: Pacific Northwest National Laboratory. Hanford Site National Environmental Policy Act (NEPA) Characterization Report
  • Schwartz T.L., and B.G. Fritz. 2004. "Dust monitoring on the Hanford Site: An investigation into the relationship between TSP, PM-10 and PM-2.5." Journal of Undergraduate Research Volume IV, 2004. PNNL-SA-39179.

2003

2002

Ecology

Additional Information