CITY OF CAMERON 100 S. Houston Avenue , P. O. Box 833 Cameron, Texas 76520 254-697-6646 254-697-3040 Fax MANDATORY LANGUAGE FOR A MAXIMUM CONTAMINANT LEVEL VIOLATION MCL, LRAA/TTHM The Texas Commission on Enviromental Quality (TCEQ) has notified the City Of Cameron TX1660001 that the drinking water being supplied to customers had exceeded the Maximum Contaminant Level (MCL) for total trihalmethanes. The U.S. Enviromental Protection Agency (U.S. EPA) has established the MCL for total trihalmethanes 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 valve in quarter one 2015 of 0.084 mg/L for DBP2-02. Trihalmethanes 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 trihalmethanes in excess of the MCL over many years may experience problems with the liver, kidney, or central nervous system, and may have a increased risk of getting cancer. You do not need to use and 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 issues: NEW PRETREATMENT INSTALLATION TO REDUCE ORGANIC DEMAND IS BEING IMPLEMENTED. If you have questions requarding this matter, you may contact the City of Cameron utility director Jerald Brunson at Cameron City Hall at 254-697-6646. Please note: This is NOT a boil notice & you do NOT need to use an alternative water supply. La Comisión de Texas Sobre Calidad Ambiental (TCEQ) ha notificado a la ciudad de Cameron TX1660001 que el agua potable suministrada a sus clientes excedido el nivel máximo de contaminante (MCL) para trihalometanos totales. La Agencia de Protección Ambiental de los Estados Unidos (US EPA) ha establecido el MCL para trihalometanos totales a 0,080 miligramos por litro (mg/L) basado en promedio de corriente anual de localización (LRAA) y ha determinado que es una preocupacion de salud peligrosa a niveles por encima del MCL. Análisis de agua potable en su comunidad para trihalometanos totales indica una válvula de cumplimiento en el trimestre uno del 2015 de 0,084 mg/L para DBP2-02. Trihalometanos son un grupo de compuestos orgánicos volátiles que se forman cuando el cloro, agregado al agua durante el proceso de tratamiento de desinfección, reacciona con la materia orgánica que ocurre naturalmente en el agua. Algunas personas que beben agua que contiene trihalometanos en exceso del MCL durante muchos años pueden experimentar problemas con el hígado, riñón o el sistema nervioso central y pueden tener un riesgo mayor de contraer cáncer. No se necesitas usar una fuente de agua alternativa. Sin embargo, si usted tiene problemas de salud, debería hablar con su médico para obtener más información acerca de cómo esto puede afectarle. Estamos tomando las siguientes acciones para abordar este tema: nueva instalación de tratamiento previo para reducir la demanda organica se esta implementado. Si tienes pregunta con respecto a este asunto, puede comunicarse con el director de utilidad de la ciudad de Cameron, Jerald Brunson a City Hall 254-697-6646. Nota: esto no es un aviso de ebullición y no se necesita usar una fuente alternativa de agua. To: Residents of Cameron From: Jerald Brunson – Utility Director Subject: TTHM Violation The attached violation for TTHM’s in our potable water is a result of our use of free chlorine to disinfect the water before putting it in the distribution system. Our water is tested quarterly by an independent agency for this disinfection by-product. Over the last three years we have steadily reduced the amount of TTHM’s by modifying our disinfection process. However, the varying makeup of the source water (Little River) makes this a very difficult endeavor. Our most recent city average of 0.0737 milligrams per liter (average of two sample points) was below the violation threshold of 0.080 milligrams per liter. But one sample point was slightly higher and did not meet the running annual average of 0.080 milligrams per liter. The most recent test results represent a sixty-one percent improvement from the highest level recorded in our system in 2012 at 0.1885 milligrams per liter. We are currently beginning the implementation of a new pre-treatment process that will allow the free chlorine to disinfect without producing disinfection by-products such as TTHM’s. If you have any questions, please do not hesitate to contact me.