Environmental monitoring in the exploration and research phases of a mine project

In Ylitornio, three measuring stations have been installed to monitor the water level, flow, weather and groundwater conditions in Palokkaanlampi and Palokkaanjoki. Continuous measurement data from the stations provides a comprehensive overview on environmental conditions and extreme weather events in the area, such as heavy rains and floods.

Automatic measurements have significantly reduced the workload and uncertainties compared to manual measurements. Data collected throughout the year can be used to create reliable models for long time periods. The predictability of hydrological conditions in different seasons is highly improved with models based on real data from the site. Manual measurements can further supplement the results obtained with automatic measurements, if necessary, and correspondingly, automatic measurements can be used to verify the accuracy of the results obtained with manual measurements.

Reliable hydrological models make exploration and site design easier and more secure. Precipitation, discharge and surface and groundwater levels can have major annual variations. Automatic measuring stations located in the target area ensure that reliable basic information can be accurately obtained. Identification of natural hydrological cycles is a very important part of mining project planning and also helps in identifying, timing and planning the need for further environmental research. Long-term monitoring and measurement results also confirm previous, manually collected hydrological data and its reliability by showing clear correlations with previous data.

Mawson intends to continue using automatic measurements in the design of surveys and mining projects and in the collection of water-related information. In the environmental impact evaluation phase, possible supplementary measurements are also being considered, especially in the area affected by the mining project.