Field Equipment & Software
ENVIRONMENTAL AND GEOPHYSICAL EQUIPMENT AND SOFTWARE
GROUNDWATER EQUIPMENT AND SOFTWARE
Equipment and software includes:
Borehole Siting Equipment
EnviroXcellence Services uses a combinations of Electromagnetic, resistivity profiling, Magnetics and Vertical Electrical Soundings to investigate the different rock types and associated aquifers.
Resistivity Profiling
Constant separation surveys are conducted at 20m and 40 01 station spacing to confirm magnetic data. Reference surveys may be carried out along existing boreholes to establish the array parameters, which are applicable to a particular area. The overall profiling depth is at least equal to the average water strike depth in an area.
Vertical Electrical Sounding(VES)
Vertical electrical soundings are carried out at anomalies identified from the profiling techniques to determine formation thickness and depths. As with the resistivity profiling where possible reference surveys are carried out at existing boreholes for data calibration purposes.
Geophysical Equipment and Software that is issued in geophysical surveys including ground water investigations:
- Multirae Multigas Monitor: measures five different kinds of pollution gases i.e. Volatile Organic Carbons (VOC), S0x, CO, NOx.
- HNU-Photo Ionization Detector (PID) - for measuring volatile gases at Hydrocarbon contaminated sites.
- Corning & HYDAC (DO) Dissolved Oxygen, pH, Electrical Conductivity (EC), Temperature water quality monitoring equipment.
- Environmental Management Software, Geographic Information System software and remote sensing for digital special mapping.
Borehole Siting Equipment
EnviroXcellence Services uses a combinations of Electromagnetic, resistivity profiling, Magnetics and Vertical Electrical Soundings to investigate the different rock types and associated aquifers.
Resistivity Profiling
Constant separation surveys are conducted at 20m and 40 01 station spacing to confirm magnetic data. Reference surveys may be carried out along existing boreholes to establish the array parameters, which are applicable to a particular area. The overall profiling depth is at least equal to the average water strike depth in an area.
Vertical Electrical Sounding(VES)
Vertical electrical soundings are carried out at anomalies identified from the profiling techniques to determine formation thickness and depths. As with the resistivity profiling where possible reference surveys are carried out at existing boreholes for data calibration purposes.
- Electromagnetics:
Electromagnetic readings are taken every 10m along the geophysical profile at different frequencies per station, with each frequency having the IN and OUT phase readings. The overall profiling depth is in the maximum of 300m depending on the frequencies selected. - Magnetic Traversing:
Magnetic data will be collected at 10 01 station spacing to determine the lateral extent and dimensions of dykes, fractures, shear zones and faults.
Geophysical Equipment and Software that is issued in geophysical surveys including ground water investigations:
Equipment:
- l x Apex Parametrics Max-min II
- 2 x G5 Magnetomete rs
- 3 x G41 Resistivity Meter
- 4xTarametre(VES)
Software:
- MAG2DC software for modeling magnetometer data ,
- VES for Windows Schlumberger Soundings Modeling and Inversion Software for resistivity data.
- AQUITEST
- Geosoft Oasis Montaj -processing and modeling software
- Interpex software – Resixplus