FIELD: withdrawal of underground water. SUBSTANCE: when taking water from each layer of water-bearing bed, its flow rate is regulated proportionally to conductivity of respective layer during water taking. Ratio of flow rates when taking water from different layers is maintained equal to ratio of conductivities of these layers. Additional holes, are made on the boundary of contaminated zone through which, during water withdrawal, simultaneous separate injection of pure water is carried-out into each layer of water-bearing bed with flow rate for each layer equalling the flow rate when taking water from respective layer. EFFECT: higher efficiency. 2 cl, 4 dwg
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