Our Drinking Water Meets or Exceeds All Federal (EPA) Drinking Water Requirements
Providing safe and reliable drinking water is our highest priority. We are proud to produce and deliver water that meets or exceeds state and federal standards. This report is a summary of the quality of the water we provide our customers. The analysis was made by using data from the most recent U.S. Environmental Protection Agency (EPA) required tests and is presented in the following pages. We hope this information helps you become more knowledgeable about what is in your drinking water.
Special Notice for the Elderly, Infants, Cancer Patients, People with HIV/AIDS or Other Immune Problems:
You may be more vulnerable than the general population to certain microbial contaminants, such as Cryptosporidium, in drinking water. Infants, some elderly, or immunocompromised persons such as those undergoing chemotherapy for cancer; those who have undergone organ transplants; those who are undergoing treatment with steroids; and people with HIV/AIDS or other immune system disorders can be particularly at risk from infections. You should seek advice about drinking water from your physician or health care provider. Additional guidelines on appropriate means to lessen the risk of infection by Cryptosporidium are available from the Safe Drinking Water Hotline at 800.426.4791 or at http://www.epa.gov/safewater/
All Drinking Water May Contain Contaminants
Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of these contaminants does not necessarily indicate that water poses a health risk. When drinking water meets federal standards, there may not be any health based benefits to purchasing bottled water or point of use devices. More information about contaminants and potential health effects may be obtained by calling EPA’s Safe Drinking Water Hotline at 800.426.4791 or at http://www.epa.gov/safewater/
The City of Grapevine received the EPA Award for Excellence in 1992, 1995, and 1998 for the best maintained and operated water system for Region VI for water systems of similar size. Region VI consists of Texas, New Mexico, Arkansas, Louisiana and Oklahoma. In 1991, 1998, 2001 and 2004, the City of Grapevine’s water was awarded the best tasting water award in North Central Texas, by the North Texas Laboratory Association. The City of Grapevine was awarded the best tasting water in Texas in March 2002. In 1994 and 2013, the Trinity River Authority water was awarded the best tasting water in North Central Texas by the North Texas Laboratory Association. The Trinity River Authority was awarded the best tasting water in Texas in March 2014.
Where do we get our drinking water?
Sources of drinking water (both tap and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs and wells. As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases, radioactive material. It can pick up substances resulting from the presence of animals or from human activity.
Contaminants that may be present in source water include:
- Microbial contaminants – such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations and wildlife.
- Inorganic contaminants – such as salts and metals, which can be naturally-occurring or result from urban storm water runoff.
- Industrial or domestic wastewater discharges- oil and gas production, mining, or farming.
- Pesticides and herbicides – which may come from a variety of sources such as agriculture, urban storm water runoff, and residential uses.
- Organic chemical contaminants – including synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, and can also come from stations, urban storm water runoff, and residential uses.
- Radioactive contaminants – which can be naturally-occurring or be the result of oil and gas production and mining activities.
Grapevine uses surface water from Lake Grapevine and purchased water from the Trinity River Authority (TRA). TRA raw water is pumped from Cedar Creek Reservoir and Richland-Chambers Reservoir into Lake Arlington.
A Source Water Susceptibility Assessment for your drinking water source(s) is currently being updated by the Texas Commission on Environmental Quality. This information describes the susceptibility and types of constituents that may come into contact with your drinking water source based on human activities and natural conditions. The information contained in the assessment allows us to focus source water protection strategies.
TCEQ classified the risks to our source water as “High” for most contaminants. “High” susceptibility means events or activities near sources of the City of Grapevine drinking water make it very likely that chemical constituents may come into contact with our source water. It does not mean there are any health risks present.
For more information on source water assessments and protection efforts of our system, call 817.410.3330.
For more information about your sources of water, please refer to the Source Water Assessment Viewer available at the following URL: http://www.tceq.texas.gov/gis/swaview
Further details about sources and source-water assessments are available in Drinking Water Watch at the following URL: http://dww2.tceq.texas.gov/DWW/
Lake Water Treatment
At the Grapevine and TRA water treatment plants, the lake water goes through several treatment processes where chemicals such as chlorine, ozone, alum, fluoride, caustic soda, ammonia, potassium permanganate and polymer are added to purify the water. After the water is purified, it is pumped into your homes through more than 299 miles of distribution pipelines.