Aaron Puente

Project Geophysicist


Bachelor of Science, Geology, 2005, University of California, Santa Barbara, California


OSHA 40-Hour Health and Safety Training (with annual updates)

Refinery Safety Overview (RSO)

Los Angeles Clean Card (LACC)

American Petroleum Institute (API) WorkSafe


EarthImager, MagMap, Microsoft Office, Pathfinder, Photoshop, SIPwin, Surfer


Mr. Puente’s experience includes both geophysical and geotechnical studies. Responsibilities include managing staff, processing data, preparing project reports and creating site data maps using Surfer. He has over 6 years of experience in conducting evaluations for such projects as schools, medical centers, refineries, pipelines, transportation corridors, residential developments, and landfills. Areas of geophysical expertise include electromagnetics, magnetics, ground penetrating radar, seismics, and electrical resistivity. Specific project experience includes:

  • California State Prison, Lancaster, California: Field Geophysicist for the proposed design and construction of power generating facilities at the prison. Services included the performance of electrical resistivity soundings in accordance with ASTM G 57 and the evaluation of underground utilities in the study area. The purpose of the services was to provide grounding information to the design electrical engineer, and to delineate underground lines in the area of proposed improvements
  • THUMS Facility, Pier J, Port of Long Beach, California: Geophysicist overseeing the geophysical evaluation of potential obstructions in the area of proposed subsurface activities. The specific purpose of the evaluation was to assess the presence of detectable underground utilities, lines, and construction debris along the access road at the southwest perimeter of the site, where trenching activities are planned. The survey included the use of a Schonstedt GA-52 magnetic gradiometer, Geonics model EM61 time domain instrument, Fisher M-Scope TW-6 pipe and cable locator, RD4000 line tracer, and GSSI SIR 3000 GPR unit using a 400 MHz transducer.
  • ConocoPhillips Refinery, Carson California: Field Geophysicist assessing the presence of underground utilities, voids, and subsurface obstructions in the crane lifting and staging areas at the facility. Due to the enormous earth pressures generated by the cranes, potential sagging or toppling of the cranes are a significant concern. Geophysical services included conducting detailed GPR surveys to assess the presence of voids or other subsurface features, which could cause loss of support. In addition, near surface utility lines and product piping, which could be crushed by the heavy loads, were detected and mapped using electromagnetic, magnetic, and line tracer instruments.
  • UST Search, Southern California: Field Geophysicist for survey services and geophysical analysis for the evaluation of numerous potential underground storage tank (UST) sites throughout southern California. Sites have included former gasoline service station sites, active fueling stations, industrial properties, and maintenance facilities. Services typically included conducting EM and/or magnetometer surveys across the site as well as GPR. In addition, line tracer methods were also used to detect product lines. The results were marked on the ground surface and presented in written illustrated reports.
  • Four Corners Generating Station, Fruitland, New Mexico: Field Geophysicist evaluating a former construction debris landfill. The primary purpose of the study was to assess the nature and limits of landfill debris including the presence of asbestos debris pods within the study area. Services included conducting electromagnetic (EM), magnetic and high resolution electrical resistivity (Sting) surveys at the site. Instrumentation included a Geonics EM61 MK2 time domain instrument, Geonics G-858 Cesium Vapor magnetometer, and AGI R8 SuperSting resistivity meter with 56 electrodes. The results from the evaluation were presented in an illustrated report.