Using Bleach for Disinfecting Drinking Water and Water Wells
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.
How Can I Tell?
If the label does not indicate that the bleach meets NSF Standard 60, contact the manufacturer to confirm whether the bleach is manufactured to standards.
NSF-Certified Bleaches
NSF-certified bleaches are marked as follows:
- The label will read, “meets NSF Standard 60.”
- Or the label will show the NSF symbol:
- Or both.
What If I Use A Brand not Certified by NSF?
Using any brand of bleach not manufactured to NSF Standards for public water systems is a violation of the Public Drinking Water Rules, 30 TAC 290.42(i).
Is This a New Policy?
Yes, this is a change from our policies of the past. At one time, bleaches manufactured to this standard were not available in small quantities throughout Texas. Now they are.
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.
