Subsurface Utility Designation & Mapping

Providing the horizontal locations of existing buried utilities and structures, a critical step to initial design and civil engineering phases.

Services Include:
  • Identification of and contact with utility owners within the project limits
  • Detailed investigation of any available records, plans, and maps
  • Thorough electronic search of the site for buried facilities
  • Accurate mapping of all locatable subsurface utilities utilizing the latest in surveying technology combined with utility records research, resulting in precise horizontal and vertical coordinates of all structures
  • Coordinates can be plotted and provided in ASCII, AutoCAD DWG, and MicroStation format
Subsurface Utility Designation and Mapping


Subsurface Utility Locating

Excavating test holes to determine the exact horizontal and vertical location of existing utilities, a critical step to final design and early construction phases.

Subsurface Utility Locating
Advantages & Services Include:
  • Test holes determine the exact horizontal and vertical location of existing utilities
  • Non-destructive, vacuum excavation exposes the utility at all points of possible conflict
  • Field staking of the exact location of the proposed features and possible utility conflicts
  • Restoration of the test hole and marking of the location, utilizing established utility designating color codes and ASCE Standards of Practice
  • Formal Test Hole Report and Inventory for all structures found
  • Total station survey of test hole locations for CADD mapping


Ground Penetrating Radar (GPR)

Non-destructively locates subsurface targets prior to digging, trenching, or conducting site assessments.

  • An accurate and necessary tool for damage prevention on construction sites
  • Successful in a variety of difficult applications, such as locating drain fields, USTs, and non-metallic utilities (eg, A/C, PVC water mains, terracotta pipelines)
  • Cost effective for projects requiring a quick turn-around
Ground Penetrating Radar (GPR)


Pipe Inspection

Accumark offers full color CCTV inspection services for sewer/drain line pipes and empty electrical/telecommunication conduits as small as 2″. The system provides recorded color video data, and can electronically designate the horizontal location of the CCTV camera head by means of a built in Sonde.

Pipe Inspection
  • Inspection of recently built or re-constructed sewers to ensure that construction met specifications and to document as-built conditions.
  • Routine Inspections: Done as a way to pro-actively inspect and identify potential problems. Also to help plan routine operations, maintenance, and renovation programs.
  • Troubleshooting: Investigation of problem incidents to select remedial action.
  • Compliance: Inspection and data collection to comply with mandated programs.