Acquisition of ISO Certification
Daegu Metropolitan City Waterworks Headquarters Acquires International Certification for Food Safety Management System (ISO 22000). International Standardization Organization Recognizes "Cheongnasu" as Safe "Food"

ISO 22000 Certification (November 2023)
What is the Food Safety Management System (ISO 22000)?
- This is an international standard, established by the International Standardization Organization (ISO), that specifies the requirements for a food safety management system that prevents and eliminates potential hazards at every stage of food handling, production, and supply, thereby ensuring the production and supply of safe, hygienic food.
Purpose for obtaining Food Safety Management System Certification (ISO 22000)
- Secure a foundation for production and supply of high-quality safe tap water
- Shift paradigm of tap water hygiene management
- Enhance the status and credibility of Daegu City tap water both domestically and internationally
Overview of Daegu Metropolitan City Waterworks Headquarters' Acquisition of Food Safety Management System Certification (ISO 22000)
- Name of certification: Food Safety Management System (ISO 22000)
- Scope covered by certification: The entire tap water production and supply process, from intake to tap, at five water purification plants (Maegok, Munsan, Gosan, Gachang, and Gongsan), as well as the entire production facility for “Cheongnasu,” which is the city’s bottled tap water
- Date acquired: November 30, 2023
Criteria met for Food Safety Management System Certification (ISO 22000)
- Entire process of tap water production and supply certified by the International Standardization Organization
- Strict management of tap water through systematic hygiene management and focused control of food hazards
- Completed maintenance projects to prevent foreign substance inflow into water purification plants and implemented follow-up management
- Completed facility improvement projects for water purification plant hygiene management and implemented follow-up management




