Haloacetic Acids (HAAs) Locational Running Annual Average (LRAA) Remains Above Drinking Water Standards

On Thursday, March 22, 2018, a second Tier II public notice for a non-emergency drinking water violation for haloacetic acids (HAAs) was sent to customers in the Main Lower South Water System. A Tier II public notice is a non-emergency notification because there is no immediate health risk. This is not an emergency situation, and you may continue to drink the water. In December 2017, a public notice was issued for exceedance of the HAA Standard. Sample results continue to show the levels of HAAs is less than 60ppb, however compliance is based on a locational running annual average (LRAA) and this number when calculated remains above 60ppb in two locations due to high numbers received in November 2017.

You can read the public notice from March 2018 here and some FAQs with more detailed information  here.