According to the "standard for domestic water consumption in residential areas", the maximum daily domestic water consumption per capita in residential areas of this city is 135 L / person / day, and the domestic water consumption in this city is 7900.00m3/d; the total water consumption of industries and enterprises is 5773.95 M3 / D; the total water consumption of public buildings and greening is 2090.00m3/d; the maximum daily water consumption of the city is 18901.90m3/d, and the maximum daily and hourly water consumption is 382.85l/s; the self consumption of the water plant is 5% of the maximum daily water consumption.