Hardness of tap water in Gongshu District of Hangzhou

The hardness of tap water in Gongshu District of Hangzhou is 450mg per liter. According to the water quality monitoring results of Gongshu District Health Bureau, the water hardness is qualified, and the normal water hardness should not be greater than 450mg per liter. Gongshu District belongs to Hangzhou, Zhejiang Province, and is one of the downtown areas of Hangzhou, located in the middle of Hangzhou.