Land requirements for our surveys


logistics

Unlike seismic or electro-magnetic surveys, we cause virtually no impact or inconvenience to land owners. Our equipment is lightweight and highly portable with the added advantage of only requiring a short duration for on-site operatives.

Our technology is very different to previous forms of geological surveying. It is entirely environmentally passive, producing no vibration, no noise (other than a small portable electrical generator at the source location) and no radio or electrical interference. Our equipment requires minimal land use and is highly flexible in its location, needing little more than access by foot and no heavy site machinery.

It is our priority that when undertaking a survey, we present very little or no disruption to the normal operation of the landowner’s property. Likewise our equipment offers no risk to people, animals or crops in the surveying area.

Our surveys require two independent forms of land access:

The base location – from which we transmit an electrical signal deep underground across the whole survey area:

  • Our ground source equipment comprises an insulated wire stretched to out about 1Km which is grounded at each end. These ends are isolated in rectangular (50m x 5m) areas and fenced off using red plastic barricade to prevent access.
  • These areas contain approximately 30 short grounded metal pipes (40mm x 1.2m), where each needs to be inserted vertically, requiring a hole approximately 1m deep by 150mm diameter (similar to a fence post).
  • These pipes are then packed in the hole using moist compost and removed after completion of the survey, leaving no trace afterward.
  • It is possible to locate the two (50m x 5m) areas on the perimeter of any field, away from growing crops or livestock etc.
  • Vehicle access (Land Rover or Transit Van) will only be required for the setting up and maintenance of a small site generator (where no mains supply is available). This can be positioned anywhere within 100m of either of the two sites.
  • In operation, this cable is energised to produce a signal deep underground, using a 3 phase (60KVA) portable generator or mains supply and controlled using a GPS clock.
  • Our operator will constantly monitor the equipment which would need to be in location for a period of around 2 weeks.

Signal measuring sites – from where we take readings using our ultra sensitive measuring equipment:

  • Our equipment consists of a portable detector unit which can be carried by two people.
  • The detector can be placed almost anywhere, foot path, bridleway or perimeter of a field etc.
  • The equipment needs no more than to be placed on the ground for a period of up to 30mins, to receive the signal from the base location.
  • Multiple sites are required across the survey grid area.

Receiver Station
Our compact (60cm tall) receiver station
  

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