Our equipment for pumping tests and tests in wells and groundwater monitoring wells

• More than 40 types of submersible and special pumps of < 0.1 I/s to 20 I/s
• Pumps up to 250 m of pressure head
• Pumps for borehole and/or monitoring well diameters of 2", 3", 4", 5" and more
• Packer installations for horizontal pumping tests in boreholes and monitoring wells from 2"
• Piezoresistive pressure sensors for digital determination of the water level (automatic compensation of atmospheric pressure), precision of measurements of 1 mm to 5 mm, depending on the survey area
• Electromagnetic meters for flow rates of 0.0001 to 10 I/s (20 I/s mech.)
• Measuring chains for automatic monitoring of temperature, pH-value, electric conductivity, oxygen and redox potential in water delivered
•  AquiTronic multi and single channel data logger systems for continuous registration of all parameters measured from 1 s of measuring frequency
• Mobile and fixed groundwater treatment plants (solvents recycling, strip units, catalytic oxidation plants for catalytic afterburning, light liquid separators, activated carbon filters, combined groundwater and soil gas decontamination, 2-phase pumping systems

Our special equipment for geohydraulic borehole tests

• Pneumatic packers for borehole diameters of 50 - 270 mm, Comdrill system
• Packer arrangement as single point or straddle packers down to depths of 400 m
• Pneumatic and hydraulic test valves down to depths of 400 m
• Pressure registration by piezoresistive pressure probes, precision of measurement 1 - 5 mm, depending on survey area
• Permanently operated submersible motor pumps for grouting pressures up to 20 bar
• Electromagnetic flow meters for rates of 0.0001 to 5 l/s
• AquiTronic data logger system, measuring frequency from 0.01 sec
• Pumps up to 250 m of pressure head
• Pumps for borehole and/or monitoring well diameters of 2", 3", 4", 5" and more
• Packer installations for horizontal pumping tests in boreholes and monitoring wells from 2"
• Piezoresistive pressure sensors for digital determination of the water level (automatic compensation of atmospheric pressure), precision of measurements of 1 mm to 5 mm, depending on the survey area
• Electromagnetic meters for flow rates of 0.0001 to 10 I/s (20 I/s mech.)
• Measuring chains for automatic monitoring of temperature, pH-value, electric conductivity, oxygen and redox potential in water delivered
•  AquiTronic multi and single channel data logger systems for continuous registration of all parameters measured from 1 s of measuring frequency
• Mobile and fixed groundwater treatment plants (solvents recycling, strip units, catalytic oxidation plants for catalytic afterburning, light liquid separators, activated carbon filters, combined groundwater and soil gas decontamination, 2-phase pumping systems

Our testing types
(according to recommendations of the German Association for Geotechnical Engineering DGGT 1-4, DIN 18130-2 and DIN EN ISO 22282)

Testing in wells, groundwater monitoring wells or boreholes

• Pumping test / aquifer test
• Capacity pumping test/ well test         
• Injection test
• Refill or recovery test         
• Slug-bail test
• Transient response test
• Conductivity fluid logging

Testing in boreholes with packers

• Pumping test
• Water pressure test
• Injection test
• Slug test
• Drill-stem test
• Pulse test