Mandatory Public Reporting of TCEQ Violation regarding Drinking Water Q4 2021

Mandatory Language for a Maximum Contaminant Level Violation

MCL, LRAA / TTHM

The Texas Commission on Environmental Qua1ity (TCEQ) has notified the CITY OF SAN AUGUSTINE TX2030001 that the drinking water being supplied to customers had exceeded the Maximum Contaminant Level (MCL) for total trihalomethanes. The U.S. Environmental Protection Agency (U.S. EPA) has established the MCL for total trihalomethanes to be 0.080 milligrams per liter (mg/L) based on locational running annual average (LRAA), and has determined that it is a health concern at levels above the MCL. Analysis of drinking water in your community for total trihalomethanes indicates a compliance value in Quarter four 2021 of 0.088 mg/L for DBP2-01.

Trihalomethanes are a group of volatile organic compounds that are formed when chlorine, added to the water during the treatment process for disinfection, reacts with naturally-occurring organic matter in the water.

Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kidney, or central nervous systems, and may have an increased risk of getting cancer.

You do not need to use an alternative water supply. However, if you have health concerns, you may want to talk to your doctor to get more information about how this may affect you.

We are taking the following actions to address this issue:

1.To prevent the possibility of pathogenic microorganisms entering into our distribution system, we are closely monitoring the chlorine disinfection levels that we are maintaining in our distribution system.

2. We are flushing large water mains to remove any water that has the potential of forming THMs in excess of 80 ppb. 

Please share this information with all people who drink this water, especially those who may not have received this notice directly (i.e., people in apartments, nursing homes, schools, and businesses). You can do this by posting this notice in a public place or distributing copies by hand or mail.

If you have questions regarding this matter, you may contact Chris Anding or Jeaneyse Mosby at 936-675-2121 or to email at info@cityofsaugustinetx.gov.

Posted with the billings, online and in the usual places January 31, 2022.