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Using Bleach for Disinfecting Drinking Water and Water Wells

Guidance for determining which bleaches may be used for disinfecting water that is to be used for drinking, preparing foods, or other forms of consumption.

 

When used to treat water supplied by public water systems, liquid bleaches must conform to American National Standards Institute / National Sanitation Foundation (ANSI/NSF) Standard 60. Per 30 TAC 290.42(j)

Treatment chemicals and media. All chemicals and any additional or replacement process media used in treatment of water supplied by public water systems must conform to American National Standards Institute/National Sanitation Foundation (ANSI/NSF) Standard 60 for direct additives and ANSI/NSF Standard 61 for indirect additives. Conformance with these standards must be obtained by certification of the product by an organization accredited by ANSI.

How Can I Tell?

If the label does not indicate that the bleach meets ANSI/NSF Standard 60, contact the manufacturer to confirm whether the bleach is manufactured to standards.

ANSI/NSF Standard 60-Certified Bleaches

ANSI/NSF Stadndard 60-certified bleaches are marked as follows:

  • The label, Material Safety Data Sheet, or packaging will state that the product meets ANSI/NSF Standard 60.
  • Please click here for a list of ANSI accredited companies that may be approved for ANSI/NSF Standard 60 - Certified bleach. 

 

What If I Use A Brand not Certified to ANSI/NSF Standard 60?

Using any brand of bleach not manufactured to ANSI/NSF Standard 60 for public water systems is a violation of  the Public Drinking Water Rules, 30 TAC 290.42(j).

Questions? Contact Us.

If you have any questions, contact the TCEQ regional office that serves your county and ask to speak with an investigator in the Public Water Supply Program.