As a result of private-public joint testing for water quality of 3,456 facilities including filtration plants, faucets, and village waterworks, 99.7 percent of them, 3,447, satisfied drinking water quality standards.

According to the result of water quality testing of the first half of this year, there was no filtration plant or faucet which exceeded water quality standards but 1.4 percent of small water service facilities exceeded the standards.