Before 1949, the population using water (tap water) in Beijing was only 630,000; At present, the water penetration rate of Beijing residents has reached100%; Compared with 1949, the total water consumption in Beijing has increased by 40 times, and the sales volume of urban tap water has increased by 85 times. The daily water consumption of Beijing residents has increased from 60-70 liters in the past to100-10 liters now. 1992 Beijing residents' water consumption was150.84 million cubic meters, and 1998 reached 23,362 cubic meters, an increase of 54% in six years; The proportion of domestic water consumption of Beijing residents has accounted for about 37% of the city's water consumption, and it is increasing at an annual rate of 4.4%. At present, the water consumption population in Beijing has exceeded140,000, and the contradiction between supply and demand of water resources is becoming more and more difficult to adjust. Facing the serious shortage of water resources, the Beijing Municipal Party Committee and Municipal Government has been strengthening the management of urban water supply for a long time to ensure the safety of urban water supply and strive to create a water-saving city.

According to the analysis of tap water consumption structure in 2003, (1) residential water consumption was 2459 1 10,000 cubic meters, accounting for 44.55% of the water sold. (2) The water sold by restaurants and hotels is 654.38+0095300 cubic meters, accounting for 654.38+09.84% of the water sold; (3) Water sold by industrial and commercial institutions193.6 million cubic meters, accounting for 35.07% of the water sold; (4) The sales volume of bathing industry is 6.5438+0.67 million cubic meters, accounting for 0.3% of the sales volume; (5) The sales volume of car washing and purified water was 654.38+10,000 cubic meters, accounting for 0.02% of the sales volume; (6) The sales volume of reclaimed water is1150,000 cubic meters, accounting for 0.2% of the sales volume; (7) The sales volume of agricultural compensation water is 50,000 cubic meters, accounting for 0.0 1% of the sales volume.

According to the resources, the target population, Beijing Water Supply Group Company, has waterworks 1 1 in the urban area, with an annual water supply of nearly 600 million cubic meters, a total length of 6,330 kilometers of water supply pipelines, a water supply service area of nearly 1 0,000 square kilometers, a service population of more than 8 million, and an urban water consumption rate of 1 0,000%.