Beijing's largest water quality test starts

Open valve water, disinfection, sampling, sealing, numbering? ? Yesterday's Guo Gongzhuang Water Plant was equipped with a pump room, and three "white coats" were working in an orderly manner. At the beginning of this month and early next month, the water department will sample and test at 165 monitoring sites in two batches and conduct 106 tests. This is the largest water quality inspection in the city.

The Guogongzhuang Water Plant was one of the first 92 monitoring sites. The staff only spent more than 20 minutes and filled more than 30 sterile bottles of various sizes. After being registered, they were sent within 4 hours. The water quality testing center conducts all 106 tests according to national standards. The water samples were in triplicate and each consisted of a dozen sampling bottles. A person in charge at the scene explained that a water quality monitoring center of the Water Group conducted self-inspection; one used barcodes to block serial numbers, and in random order, randomly sent them to the county water quality monitoring stations for blind screening; the third was Alternate sample. "Once the difference between the two test results is too large, a third set of backup water samples is used for review. The comparison test is to make the results more accurate and to prevent false reports."

At the beginning of next month, the staff of the water department will also sample the second batch of 73 monitoring sites. According to the staff, previous inspections focused on water supply companies with a water supply capacity of 10,000 tons or more, and some companies with small scales often became blind spots for testing. This year, the scope of inspections has been further expanded, involving all public water plants. A total of 17 township centralized water supply plants with a large amount of water supply have also been added, and a full-process inspection of water sources, processing links and user terminals has been established. In addition, since the beginning of last year, the city's water quality monitoring has also introduced a third-party organization, independent sampling testing, all test results will be announced to the public.