Proposed electricity generation developments: peat landslide hazard best practice guide

Second edition of guidance on best practice methods to identify, mitigate and manage peat slide hazards and associated risks.

Appendix C: Site Monitoring Instrumentation

Site monitoring and instrumentation

Various types of instrumentation can be considered for installation on site to allow monitoring of groundwater levels, overland flow (run-off) characteristics, slope movement at tension crack locations and rainfall. The following instruments may be installed:

Table C1 Site instrumentation recommendations

Variable to be monitored Instrumentation Description and purpose
Groundwater Standpipes Installed to monitor groundwater level. Use of data loggers can be helpful in remote sites and also for detailed assessment of how groundwater levels respond to particular rainfall events, which are difficult to interpret from spot water level readings.
Pore water pressure Piezometers Installed to monitor groundwater pressure at a particular depth.
Overland flow Crest stage tubes Installed to monitor overland flow/run-off from the slopes after periods of heavy rainfall.
Rainfall Rain gauges Installed to collect rainfall data via either automated or regularly monitored systems.
Ground movement Tension crack pegs Installed either side of existing tension cracks and regularly monitored to determine rates and frequencies of crack extension and ground movement.
Detailed ground movement Extensometers Automated systems that can be installed in existing tension cracks to establish both the nature and rate of ground movement. Automated systems allow for data collection on ground movement at regular intervals ( e.g. every 3 hrs) and therefore allow collation of ground movement with groundwater and rainfall characteristics on a given site.
Shear surface movement Inclinometers Installed in deep peat landslides (+ 2.5m) in locations where the depth of the shear surface is known to monitor rates of deformation at the shear surface. Where inclinometers may not be appropriate slip indicator methods can be used; Simple polythene tubing which is installed in the peat slope and probed regularly. The depth of deformation in the tubing indicates the potential position of the shear surface.


Email: Energy Consents Unit

Phone: 0300 244 4000 – Central Enquiry Unit

The Scottish Government
St Andrew's House
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