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The City of Granite Shoals
2221 N. Phillips Ranch Road
Granite Shoals, TX 78654
Ph: 830-598-2424
Public Notice
Fair Housing Policy for the City of Granite Shoals
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You can view the Fair Housing Policy for the City of Granite Shoals here.  

Mandatory Language for Maximum Contaminant Level Violation, LRAA/TTHM/HAA5

Public Notice for period of April 1, 2019 to June 30, 2019
The following information is mandatory language required by the TCEQ to inform our customers of the Surface Water System of a result of routine chemical testing of the drinking water. 

The Texas Commission on Environmental Quality (TCEQ) has notified the City of Granite Shoals that the drinking water being supplied to customers has exceeded the Maximum Contaminant Level (MCL) for total trihalomethanes and for haloacetic acids (group of five).  The Environmental Protection Agency (U.S.EPA) has established the MCL for total trihalomethanes (TTHM) to be 0.080 milligrams per liter (mg/L) and the MCL for haloacetic acids (HAA5) to be 0.060 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 TTHM indicates a LRAA compliance value in quarter two 2019 of 0.143mg/L for DBP2-01 and 0.140 for DBP2-02 and for HAA5 LRAA compliance value in quarter one 2019 of 0.102 mg/L for DBP2-01 and 0.105 mg/L for DBP2-02.  

Trihalomethanes and haloacetic acids are groups 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 total 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.  Some people who drink water containing haloacetic acids in excess of the MCL over many years 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: 

We continue to perform routine maintenance on the distribution system by flushing water lines to reduce the disinfection byproducts and have increased the frequency of flushing dead-end mains in the distribution system.  Adjustments have been made to the monitoring process for treatment procedures, as well as adjustments to the chemical treatment procedures have been made based upon the changing characteristics of our source water.  Water quality parameters are monitored daily and analyses performed daily for both regulatory and process control samples by licensed TCEQ water operators.  The TTHM and HAA5 samples  collected on a quarterly basis reflect the chemical concentrations of these groups of volatile organic compounds on one day out of the quarter.  This sample value is used to determine the compliance values.  As the compliance value is based upon a locational running annual average, this value may place the system over the MCL until several quarters of normal sample analysis result in a lower average.  TCEQ requires the City to notify customers each quarter until the LRAA is less than the MCL.

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:  Peggy Smith at 830-598-2424.

Posted/Delivered on 6-27-2019