On January 12, 2022, Shaanxi Province sewage disposal unit self-monitoring information public platform shows that Chengcheng County xxx Water Industry Co. total nitrogen in 2022.1.1-2022.1.2 suspected exceeding emissions. PECC reflected the situation to the local environmental protection bureau through 12369 and Weibo, as detailed in the following chart:

February 18, 2022 received feedback from the local environmental protection bureau: for the enterprise exceeded the standard behavior has been investigated and verified, and require enterprises to carry out rectification, strengthen management, to ensure that the normal operation of the pollution prevention and control measures to achieve water quality standards.