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This call for bids is for a portable water pumping system, capable of groundwater sampling and hydraulic-testing in deep open boreholes. The system must be able to: 1.Fit inside ⌀ 45 mm boreholes/observation wells. 2.Be capable of operating at least 300 m BGS as is, or with additional modifications. If additional modifications are required, at least a rough estimate of modification costs and requirements is to be included in the bid. 3.Have adjustable flow rate, and be capable of both low (~100 ml/min) and high (~30 l/min) flow rates at the above mentioned depth. 4.Have resistance against corrosive liquids. 5. Necessary connections and cables between the pump and generator/control unit. The delivery has to take place on or before 31.3.2020.