January 12, 2023, Shandong Province, the national key monitoring enterprise monitoring information release platform shows that Zouping ** Water Co. Ammonia nitrogen in 1.8, 1.9, 1.11 suspected of exceeding the emission standards. PECC reflected the situation to the local environmental protection bureau through 12369 and Weibo, see below:

February 8, 2023 received feedback from the local Environmental Protection Bureau: for the company's discharge of pollutants automatic monitoring data ammonia nitrogen appeared to exceed the standard in a timely manner to start exceeding the emergency response, to carry out traceability investigation, and the exceedance of the case filed for investigation.