In some water-scarce cities, a large amount of high-quality tap water is used for green irrigation, road cleaning, construction dust reduction, etc. In some cities, the utilization rate of reclaimed water, which is regarded as solving the problem of water shortage and water pollution, is low.

In a city in the east, tap water has accounted for about 85% of the total amount used for public greening watering and municipal road sanitation and cleaning in recent years. In one city in central China, a cadre of the local garden and sanitation department told Banyuetan that the city's urban reclaimed water reuse project did not begin construction until 2020, and the relevant facilities and equipment were very limited.