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DGM (UXO Detection)


Military Munitions Response (MMR) Digital Geophysical Mapping (DGM) Services

MMR DGM picture caption:

In the presences of potential UXO, FPM's trained geophysicists and UXO staff can find exactly what we are looking for.


The principal objective of Military Munitions Response (MMR) Digital Geophysical Mapping (DGM) is to detect the presence of Unexploded Ordinance (UXO) and/or safety remediate UXO contaminated areas. Accuracy is critical; we achieve accuracy by adhering to stringent Standard Operating Procedures (SOP’s), selecting the most appropriate geophysical instrumentation to detect munition items for a specific site, and using the highest resolution land survey systems available [e.g., survey-grade RTK Global Positioning Systems (GPS), robotic total station (RTS) systems, and psuedo-satellite systems (PSS) or “psuedolites”].


Typical objectives of a MMR DGM survey include:

  • Detection of location and depth of UXO/MEC
  • Relocating / Reacquiring UXO/MEC target items
  • Characterize the distribution, type, depth, and condition of UXO across a site
  • UXO Remediation or remedial planning / design / investigation (target density & extent)


We often integrate the geophysical and land survey data into a Geographic Information System (GIS) to capture all the attributes (e.g., aerial photos, utility plans, and cultural resource information) and provide a “one-stop” data management tool used by our customers. Prior to performing a UXO survey, we usually conduct a geophysical prove-out (GPO) employing multiple geophysical systems to determine which system is best suited for site specific objectives, soil conditions and other factors. The GPO also provides several unique data sets that aid with UXO discrimination, confirmation and quality assurance of production survey results.


Key benefits of using FPM for your UXO project include:

  • Cost-effectively identify and delineate any areas of concern with imminent UXO/OE hazards, and sweep, remediate and dispose of UXO/OE.
  • Provide detailed subsurface information that can be used to refine Munitions Response Site (MRS) or Range boundaries.
  • Update existing conceptual site models (CSM).
  • Determine if No Further Action (NFA) is required, or to refine the Scope of Work (SOW) cost estimates for subsequent remedial investigations (RI) or EE/CA reporting.
  • Provide information on the subsurface that is not economically obtainable by other means.
  • Can be used to follow up destructive methods in the most effective manner.
  • Minimize and more effectively plan your coring program and other evaluation techniques.
  • Obtain accurate location and characterization of hidden anomalies and buried structures.
  • All personnel are current with OSHA Health and Safety HAZWOPER Training(29 CFR 1910. 120).
  • Typical methods used by FPM during a UXO survey include:
  • Frequency Domain Electromagnetics
  • Potential Field (Magnetics)