Trench Assessments & Underground Storage Tanks

Trench Assessments

Organisations that excavate trenches and pits for the installation, relocation or removal of underground services, such as cables or pipes, require a process for the management of the excavated material, particularly where the spoil cannot be returned to the excavation or re-used elsewhere on site.

This situation is further complicated where it is not possible to stockpile the soil on site while the assessment for disposal is being undertaken. Under these circumstances, the soil must be characterised in situ before excavation starts, to inform appropriate disposal.

LogiCamms’ specialist consultancy, Monarc Environmental, has developed a simple, cost and time-effective process for the in situ assessment of soil along trench alignments and at proposed pit locations. The output is a brief report with NATA-accredited analytical data that has proved highly acceptable to our clients, to the facilities receiving the waste soil and to the EPA.

Areas of Expertise

Trench Assessments

  • Classification of excavated material for reuse and or disposal offsite to the appropriate receiving facility (recycling facility, treatment facility or landfill)
  • Environment Management Plans for directional drilling
  • Delineation sampling to reduce and refine the volumes of contaminated soils going to landfill
  • Liaison with the receiving facility (recycling, treatment or landfill)
  • Provide assistance with the completion of a waste transport certificate
  • Field marking of contaminated areas prior to excavation
  • Site supervision for the excavation and removal of contaminated material

Our clients include:

  • Power distribution and transmission utilities
  • Gas networks and owners of former gasworks sites
  • Water
  • Property developers
  • Road, rail and infrastructure networks
  • Councils
  • Construction companies and contractors

Underground StorageĀ Tanks

Underground storage tanks (USTs) can be a major source of soil and ground water contamination. EPAs around Australia and the Australian Institute of Petroleum have extensive Guidelines and Codes of Practice for the design, installation, management, and decommissioning/removal of USTs.

Monarc Environmental has extensive experience in the management of sites containing USTs and has been a principal consultant for the removal of USTs from a broad range of properties, using processes that ensure our clients’ obligations with regard to current guidelines and regulations are met.

Areas of Expertise

Underground Storage Tanks

  • Determine the location and size of the UST using Ground Penetrating Radar (GPR)
  • Decommissioning of UST in-situ or ex-situ and associated structures
  • Ex-situ management from removal of remaining liquid, excavation, tank removal, disposal to an appropriate facility, excavation validation and reinstatement
  • In-situ management from removal of remaining liquid, in-situ sampling, filling tank with inert material, design and installation of groundwater monitoring wells
  • Classification of surround material for reuse or disposal offsite
  • Project management, sampling and investigation, evaluation and reporting

Our clients include:

  • Petrol station owners and operators
  • Power distribution and transmission utilities
  • Electricity generators
  • Gas networks and owners of former gasworks sites
  • Property developers
  • Road, rain and infrastructure networks
  • Councils and Government departments
  • Construction companies and contractors