The enhancement of dependable water supply to Vladivostok City by using groundwater in dry period with forced water withdrawal

The forced regime of groundwater development is an efficient method of enhancing the reliability of water supply to cities, where it is based on the joint use of surface water and groundwater and suffers from their deficiency in dry years that occur with certain probability. To solve the problem of water supply to Vladivostok, it is planned to use groundwater of the Razdol’ninskii Area of the Pushkinskoe Groundwater Deposit. The possibility to cover water deficiency by changing the operation regime of water intake is proved. The total reserves explored in 1983 are 124.5 thous. m 3 /day. Mathematical modeling was used to substantiate the possibility of the use of periodic forced regime of water intake operation with the capacity of 250 thous. m 3 /day with its subsequent decrease to 60 thous. m 3 /day.