Mr. Onyeukwu is currently a Geophysicist in the Geophysical and UXO Services Branch Office of FPM Remediations, located in San Antonio, TX. He has professional experience in the fields of geophysics, geological engineering, and environmental engineering. His most recent experience has focused on environmental/engineering geophysics with emphasis on unexploded ordnance (UXO) geophysical surveys, environmental media sampling and analysis, and development of field standard operating procedures (SOPs) in compliant with regulatory requirements. His educational and professional background emphasizes geophysical investigation and imaging of environmental site characterization, environmental data sampling, hydrogeologic mapping, utility mapping and designation, and detection of shallow subsurface targets and UXO. Mr. Onyeukwu has conducted geophysical projects at federal government facilities as well as various commercial properties throughout the U.S. His geophysical training and experience includes site investigations using magnetic, spontaneous potential (SP), time- and frequency-domain electromagnetic (EM) induction, ground penetrating radar (GPR), DC electrical resistivity, induced polarization (IP), seismic refraction, refraction microtremor (ReMi), and borehole geophysical logging techniques. He commonly uses robotic total station (RTS), differential global position system (DGPS) and survey-grade RTK-GPS land surveying techniques coupled to geophysical sensors, and has sound knowledge of Geographic Information System (GIS) applications to integrate and present geophysical and other data. He is advanced geophysical classification oriented and has a working knowledge of applicable federal, state, and local laws, regulations, and guidance.

Functional Role

Title

Years of Experience

Geophysicist

Geophysicist

11

Personal Data

Education

MS/Geological Engineering/2007/South Dakota School of Mines & Technology

MS/Geophysics/2003/Federal University of

Technology, Owerri, Nigeria

BS/Physics/1996/Abia State University, Nigeria

Registration and Certifications

Professional Geophysicist: PGp, CA/2017

HAZWOPER Annual Physical: OSHA/2017

First AID/Adult CPR & AED: OSHA/2017

8-Hour Health and Safety Training: OSHA/2017

40-Hour Health and Safety Training: OSHA/2008

ATV/UTV Operator Certification

Employment History

2011-Present FPM Remediations, Inc.

2007-2010 Earth Resources Technology Inc.

2005-2007 SD School of Mines & Tech. /USFS

2001-2002 Geovinda Geophysical Services

Detailed Experience

Geophysicist FPM Geophysical & UXO Services/Division of the FPM Remediations, Inc. (FPM), San Antonio, TX

Responsible for conducting geophysical surveys, performing geophysical data analysis and developing maps and figures using various software packages including GIS and Geosoft Oasis Montaj, preparation of interpretative reports, work plans, RODs, assisting with proposals and marketing items, development of various field SOPs including those of Military Munitions Response Program (MMRP) electromagnetic-induction (EMI) based Munitions Classification, and performing other duties on the following select projects:

Munitions Response Geophysical Mapping at Lunga Shore/MCB, Quantico, VA. - For APTIM/NAVY, March 2018 - Recent. Field Project Leader: Responsibility included overseeing and supervising geophysical field activities, troubleshooting and providing applicable technical solutions, installation of site control points using RTK and RTS positioning systems, performing Geophysical System Verification (GSV), performing high-resolution DGM using EM61-MK2A system integrated with RTK GPS and RTS, EM61 data management, preparing daily fieldwork progress reports, positioning systems QC protocols and assisting in EM61 target management and presentations.

MMRP Remedial Investigation/Remedial Action at Holloman AFB, NM. - For AFCEE, Nov 2014- 2018. Project geophysicist: Responsibility included installing and performing Geophysical System Verification (GSV), installation of site grids, performing high-resolution DGM using both single and multi- sensor (5-coiled) towed array EM61 and 5-sensor array magnetometers integrated with RTK GPS, creating daily GIS work progress figures, processing EM61 and G858 data, and utilization of MetalMapper 2x2 geophysical advanced classification system for cued and dynamic survey at certain sites. Other responsibilities included assisting in development of work plans (RI, NTCRA, and QUAPP, etc.), and preparing reports.

MMRP Remedial Investigation/Remedial Action at Barksdale AFB, Bossier City, LA. - For AFCEE, May 2012- June 2017. Project geophysicist: Responsibility included managing and performing Geophysical System Verification (GSV), installation of site local and global grids, performing high-resolution G-858G magnetic surveys using real-time RTK-GPS/DGPS/TS integrated with geophysical sensor, GIS integration to geophysical data, and geophysical data processing using Geosoft Oasis Montaj Other responsibilities included assisting in development of work plans, preparation of Remedial Action Reports for various sites, and generation of high quality map figures.

MMRP Remedial Action at Kimama Training Site, Lincoln County, Idaho. - For AFCEE, Nov 2016. Project Geophysicist: Responsibility included installing and performing Geophysical System Verification (GSV), installation of site grids, performing high-resolution DGM using both 1-coiled man-portable and 5-coiled towed-array EM61 systems integrated with RTK GPS, daily data uploads, data evaluations and compilations, and timely preparation of reports.

Groundwater Sampling at Shaw AFB, Sumter SC. – For URS/AECOM, March 2015. Environmental Engineer: Responsibility included well inspection, groundwater level completion, groundwater sampling, and documentation of field activities. Completed 550 wells during the groundwater sampling event.

UXO Target /Anomaly Clearance at Alpha 4 Area, McClellan, Anniston, Alabama - Matrix Environmental Services LLC (MES), October 2012 - February 2013. On-site UXO geophysicist for FPM Remediations Inc., subcontracted by EOD Technology, Inc. (EODT); Responsibility included assessing geophysical anomaly status during excavation, and clearance of target holes using EM61-MK2 instrumentation. Worked with UXO dig team and successfully cleared anomaly holes, spoils, and data gaps as deemed reasonable based on established work-plan acceptance criteria.

2011 Annual Groundwater Monitoring/Landfills Inspection at the Combined Southeast Landfills and Solid Waste Management Units (SWMUs), Former Bergstrom AFB, Austin, TX - For AFCEE, December 2011 - July 2012. On-site Environmental Scientist and GIS Analyst: Performed landfill inspection, landfill drain-support and concrete repair, vegetation clearing, mapping repair features with DGPS and integration with photographic images, assisting in groundwater sampling work, and generation of work-plan and report maps using GIS and other software.

MMRP Remedial Investigation/Feasibility Study at Vancouver Barracks, VA. - For USACE Omaha District, Omaha, NE, August 2011- March 2012. Project geophysicist: Responsibility included geophysical data management, GIS integration to geophysical (DGM) data, geophysical and surveillance video anomaly interpretation, and assisted in coordinating and writing RI/FS report.

Geophysical survey in support of FUDs MMRP Remedial Investigations/Feasibility Study at Pole Mountain, Albany County, WY - For USACE Omaha District, Omaha, NE, May 2011 - October 2011. UXO site geophysicist: Major responsibilities included leading a geophysical team for DGM using EM61-MK2 unit integrated with RTK-GPS positioning system, provided field assistance to geophysical reacquisition team, and maintained field data management system.

Excavation and Removal of Lead-/PAH- contaminated soil at Former England AFB, Alexandria, LA - For USACE Omaha District, Omaha, NE, August 2011. Environmental Scientist at sites (ORD-2205 and SWMU-28): Performed site restoration work (backfilling, compaction, re-seeding, and straw spreading) and assisted with After Action Report.

Geophysical survey in support of MMRP /MEC Removal Action at MRS GR047, Homestead Air Force Base, FL - For AFCEE as a sub to CAPE Inc., May 2011 - June 2011. UXO site geophysicist: Responsibility included Digital Geophysical Mapping (DGM) and target reacquisition using EM61-MK2 integrated with data positioning equipment (RTK-GPS and robotic total station [RTS]).

Staff Geophysicist / Environmental Engineer, Earth Resources Technology Inc. (ERT), Laurel, MD

Responsibilities included executing various geophysical investigations (seismic refraction, magnetic - G858 & G856, resistivity tomography, ground penetrating radar (GPR), Utility designation, SP, EM61 & EM31) for environmental and engineering purposes. His responsibilities included fieldwork and data acquisition, data processing and interpretation, and assisted with development of work plans, generation of geophysical interpretive reports, training of new staff, field sampling of groundwater, and scientific research. He managed the ERT GIS database for environmental site characterization and mapping. Work performed included the following selected projects:

Geophysical Survey in Support of MMRP/ MEC/CWM at Dalecarlia Woods, Spring Valley FUDS, Washington, DC - For USACE Baltimore District, Washington DC, and U.S. Army Engineering and Support Center, Huntsville, Alabama, April 2009 – September 2010. Major responsibilities included leading a geophysical team for DGM using EM61-MK2 and G-858 (with G-856) based on fiducial techniques, and preliminary data processing using EM61-MK2 and Magmap2000 software. He developed and maintained sound overall data management system as well as creation of geodatabase for site characterization and survey findings using GIS. Assisted in work plan development, report production and delivery.

Digital Geophysical Mapping in Support of Quality Assurance Activities for MEC Investigations, Alpa Area, McClellan, Anniston, Alabama - UXO site geophysicist for ERT, a sub to NAEVA Geophysical Inc. under contract with Matrix Environmental Services LLC (MES), May 2009 - May 2010. Collected geophysical data using EM61-MK2 integrated with robotic total station (RTS) for data positioning.

Shear Wave Velocity Determination at Army Aviation Support Facility, Aberdeen Proving Grounds, Edgewood, MD – Geophysicist for ERT, a sub to Haley & Aldrich, Inc., February 2010. Responsibility included using Refraction Microtremor (ReMi) seismic technique to determine shear wave velocity for geotechnical engineering purposes. Data were processed using SeisOpt ReMi and Surfer. Generated 1-D S-wave velocity profiles along with average velocity calculated per IBC 2000, which were relevant for National Earthquake Hazards Reduction Program site classification.

Ground Penetrating Radar Investigation at Orchard Place, Rothschild Court, Gaithersburg, MD - for Professional Consulting Corporation, April 2010. Geophysicist for ERT; performed GPR survey using a 400 MHz antenna, processed data using Radan software, and mapped debris in the subsurface of a parking lot that was suspected to be causing subsidence. Survey area was approximately 25,200 square feet of concrete and asphalt-paved parking lot located in Rothschild Court.

UST Investigation at Nike C61 Site, DuPage County IL - Conducted in service of MWH Americas, under contract with the Louisville District of USACE, February 2009. Geophysicist for ERT Responsibilities included using Geonics EM31, Geometrics G-858 Cesium Vapor Magnetometer, and GSSI SIR-3000 Ground Penetrating Radar (GPR) units integrated with a Topcon HyperLite Pro real-time kinematic differential global positioning system (RTK DGPS) to record survey data. Data were processed using Radan, MagMap2000, DAT31, Corpscon, and Surfer software. Results were used to determine the presence or absence of any underground storage tanks (USTs) on site.

Void Investigation at May Chapel Reservoir, Baltimore County, MD - for Baltimore County, January 2009. Geophysicist for ERT, a sub to KCI Technology Inc. Responsibility included performing GPR Survey, data processing, and interpretation to identify and delineate the extent of possible subsurface voids below the concrete floor of May Chapel reservoir basin. Data were collected over 70,000 square feet of concrete floor and steep sides of the basin using SIR-3000 GPR with1500 MHz antenna.

Refraction Seismic Survey at Odor Control Building, Montgomery County, MD - for EBA Engineering inc., July 2009. ERT Geophysicist – performed refraction seismic survey using both standard refraction seismic and Refraction Microtremor (ReMi) techniques to map the variation in overburden thickness on site. Used results from generated 2-D P-wave velocity - and 1-D S-wave velocity profiles to determine depth to bedrock at the proposed Odor Control Building for the Potomac Interceptor along Clara Barton Parkway Montgomery County, Maryland.

Resistivity Tomography and EM Survey at Constellation Landfill, Rossville, MD – For Constellation Landfill, July 2009. Geophysicist for ERT subcontracted by EA Inc. Responsibility included performing geophysical investigation using resistivity tomography (RT), combined with electromagnetism (EM31) is to map resistivity anomalies that may be indicative of perched aquifers at the landfill site. Results showed no evidence of water table at the site but broad subsurface metallic object was discovered on site.

Seismic Survey at MD Rt. 24, Rocks State Park, Harford County, MD – For Axiom Decision Systems Inc., May 2009. Geophysicist for ERT; responsibility included utilizing conventional refraction technique and Refraction Microtremor (ReMi) seismic technique to map the variation in overburden thickness on site. Data were processed using SeisOpt Picker, SeisOpt Inversion and Optimization, SeisOpt ReMi, and Surfer software. Results from generated 2-D S-wave velocity - and 2-D P-wave velocity profiles aided in determining depth to bedrock, which was needed for geotechnical purposes.

Geophysical Investigation for York Rd Water Main Phase II Project, Timonium, Baltimore County, MD - For Baltimore County, September 2008. Geophysicist for ERT, a sub to EBA engineering Inc. Responsibility included collection, processing and interpretation of Refraction Microtremor (ReMi) and Ground Penetrating Radar (GPR) data, which were used to map buried concrete pad and subsurface impediments. Results provided an aid to installation of a new 24-inch water main along the alignment.

Sinkhole Investigation at SHA Westminster Shop Facility, MD - For Maryland State Highway Administration, September 2009. ERT Geophysicist; geophysical investigation comprised cross-hole resistivity tomography (using AGI SuperSting) and GPR techniques. Data were processed using AGI EarthImager Resistivity and IP inversion software, Excel, Res2dinv, and surfer. Results from the investigation and findings from previous geophysical investigations helped to investigate the stability of the facility area.

GPR Survey at Calvert Cliffs Nuclear Power Plant, Lusby, MD - For Constellation Energy, December 2008. Responsibility included using a 400-MHz GPR to identify abandoned utilities and other anomalies along a proposed trench in a pavement- and grass-covered area of the nuclear power plant site.

Underground Storage Tank Investigation at Corsica Technology Building, North Liberty St., Centreville, MD - For Hillis-Carnes Engineering Associates, Inc., 2008. ERT Geophysicist; conducted geophysical surveys using G-858 magnetometer and 400 MHz antenna GPR instrument, processed data, and interpreted results for possible USTs.

Self-potential (SP) and Electromagnetic (EM31) Surveys at Kings Park West Dam, Fairfax, VA - for Rummel Kepper & Kahl, LLP, December 2007. Performed geophysical surveys along the Kings Park West Dam to identify leakage due to any water seeps or springs in the dam. Results showed no indication of seeps or springs, but SP anomalies suggested water flow due to known culvert.

Resistivity Survey at Millville Quarry, West Virginia - Resistivity Survey carried out along Bloomery Road east of Milliville Quarry, for Aggregate Industries-Mid Atlantic, December 2007. Survey goal was to identify the depth and horizontal location of the path of ground water flow from adjacent Shenandoah River into the quarry bottom (by measuring differences in electrical properties of the subsurface before and during brine injection).

GPR Survey at Lombardi Cancer Center, Georgetown University, Washington, DC - For MACTEC Engineering and Consulting Inc., September 2008. Performed GPR survey using a 400-MHz antenna in to investigate void spaces below a roadway and identified any possible causes of observed subsidence.

Assistant Tutor / Geoscientist, South Dakota School of Mines & Technology (SDSM&T), Rapid City, SD

Employed during pursuit of MS as a graduate teaching assistant (GTA) for undergraduate and graduate level courses including geological engineering and environmental geology classes, Geographic Information System (GIS), and Earth Systems & Engineering Analysis. Responsibilities included conducting weekly fieldwork, laboratory exercises, evaluating and grading papers, assignments and exams for engineering students.

Academic employment included serving as a geophysicist or geoscientist / field engineer for some contract jobs coordinated by civil engineering and geological departments.

Ground-Based Magnetic Survey for Wintrode Estate – South of Interstate 90, Rapid City SD. Acquired magnetic data in approximately 34.5-acre area of the site using Portable Scintrex EnviMag Proton Precision magnetometer. Data were geo-referenced using standard GPS unit, and used to investigate dumped magnetic materials resulting from cleanups following the 1972 flooding in Rapid City, SD.

Environmental Impacts from North Cave Hills abandoned Uranium Mine Sites, Harding County, SD – Joint Venture: USFS SDSMT, and Oglala College. Built a GIS-based database (Geodatabase) for environmental sampling data, collected environmental samples (soil, water, and air/dust), measured nuclear radiation within the area using Geiger Counter, recorded site measurement locations using GPS unit, assisted in Geoprobe™ coring work, prepared GIS maps, collected wind-tunnel-, soil scoop-, and sieved data, and prepared and analyzed samples according to EPA regulatory methods.

Assessment of Lower Cheyenne Watershed - Joint Venture: RESPECT, SD Department of Environment & Natural Resources (DENR) and SDSM&T Civil Engineering Department. Performed measurement of physical habitat parameter (physical habitat assessment) at multiple sites at Lower Cheyenne River watershed, processed habitat data used to develop metrics from which a principal component analysis (PCA) was conducted to describe habitat variability in the watershed.

Assistant Field Geophysicist Geovinda, Geophysical Consultant, Owerri, Imo State, Nigeria

Responsibility included electrical resistivity data collection, processing, and interpretation using curve matching technique, and water bore-hole geophysical (electrical, temperature and SP) logging, data processing and interpretation for groundwater exploration/ exploitation. Other duties included performing environmental and geophysical research work pertinent to the position held.

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