12VAC5-590-515: Use of chemicals

A. All chemicals used in water treatment shall be compliant with NSF/ANSI/CAN Standard 60-2020. These chemicals shall include the following:

1. Corrosion and scale inhibitors;

2. Coagulants and flocculants;

3. Disinfectants and oxidants;

4. pH adjustment chemicals;

5. Regenerating agents; and

6. Membrane cleaning compounds.

B. Chemical containers shall bear the proper certification mark and identification consistent with the Safety Data Sheet for the chemical used.

C. The owner shall maintain documentation verifying that all chemicals meet NSF/ANSI/CAN Standard 60-2020 certification requirements.