Is my drinking water safe? Yes, our water meets all of EPA’s health standards. We have conducted numerous tests for over 80 contaminants that may be in drinking water. As you’ll see in the chart, we only detected five of these contaminants. We found all of these contaminants at safe levels. What is the source of my water? Your water, which is ground water, comes from the Memphis Sand Aquifer. Our goal is to protect our water from con- taminants and we are working with the State to determine the vulnerability of our water source to potential contamination. The Tennessee Department of Environment and Conservation (TDEC) has prepared a Source Water Assessment Program (SWAP) Report for the untreated water sources serving water to this water system. The SWAP Report assesses the susceptibility of untreated water sources to potential contamination. To ensure safe drinking water, all public water systems treat and routinely test their water. Water sources have been rated as reason- ably susceptible, moderately susceptible or slightly susceptible based on geologic factors and human activities in the vicinity of the water source. The McKenzie Water Dept. sources rated as reasonably susceptible to potential contamination. An explanation of Tennessee’s Source Water Assessment Pro- gram, the Source Water Assessment summaries, susceptibility scorings and the overall TDEC report to EPA can be viewed online at https://www.tn.gov/environment/program-areas/ wr-water-resources/water-quality/source-water-assessment. html or you may contact the Water Dept. to obtain copies of specific assessments. A wellhead protection plan is available for your review by con- tacting Earnest Umstead at the McKenzie Water Dept. between 7:00 a.m. to 5:00 p.m. weekdays. Why are there contaminants in my water? Drinking water, including bottled water, may reasonably be ex- pected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information about contami- nants and potential health effects can be obtained by calling the Environmental Protection Agency’s Safe Drinking Water Hotline (800-426-4791). Este informe contiene información muy importante. Tradús- calo o hable con alguien que lo entienda bien. For more information about your drinking water, please call Earnest Umstead or Billy Wood at 352-3114. How can I get involved? Our City Council meets on the second Thursday of each month at 7:00 p.m. at the City Hall. Please feel free to participate in these meetings. Is our water system meeting other rules that govern our operations? The State and EPA require us to test and report on our water on a regular basis to ensure its safety. We have met all of these requirements. Results of unregulated contaminant analysis are available upon request. We want you to know that we pay at- tention to all the rules. Other information The sources of drinking water (both tap water and bottled wa- ter) 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, and can pick up substances resulting from the presence of animals or from human activity. Contaminants that may be present in source water: • 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 stormwater 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 stormwater 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 gas stations, urban stormwater runoff, and septic systems. • Radioactive contaminants, which can be naturally-occuring or be the result of oil and gas production and mining activities. In order to ensure that tap water is safe to drink, EPA and the Tennessee Department of Envi- ronment and Conservation pre- scribe regulations which limit the amount of certain contaminants in water provided by public water systems. FDA regulations establish limits for contaminants in bottled water which must provide the same protection for public health. Do I Need To Take Special Precautions? Some people may be more vulnerable to contaminants in drink- ing water than the general population. Immuno-compromised persons such as persons with cancer undergoing chemothera- py, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about not only their drinking water, but food preparation, personal hygiene, and precautions in handling infants and pets from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-426-4791). Lead in Drinking Water If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and compo- nents associated with service lines and home plumbing. The McKenzie Water Dept. is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you may wish to have your water tested. Infor- mation on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at http://www.epa.gov/lead/protect- your-family%23water%23water. Water System Security Following the events of September 2001, we realize that our customers are concerned about the security of their drinking water. We urge the public to report any suspicious activities at any utility facilities, including treatment plants, tanks, fire hydrants, etc. to the police dispatcher at 351-2264. Think before you flush! Flushing unused or expired medicines can be harmful to your drinking water. Properly disposing of unused or expired medica- tions helps protect you and the environment. Keep medications out of Tennessee’s waterways by disposing in one of our perma- nent pharmaceutical take back bins. There are nearly 100 take back bins located across the state, to find a convenient location please visit: https://tdeconline.tn.gov/rxtakeback/. McKenzie Water Department Water Quality Report for 2018 1 During the most recent round of Lead and Copper testing, only 0 out of 20 households sampled contained concen- trations exceeding the action level. Wa t e r Q u a l i t y D a t a What does this chart mean? • MCLG - Maximum Contaminant Level Goal, or the level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety. • MCL - Maximum Contaminant Level, or the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology. To understand the possible health effects described for many regulated constituents, a person would have to drink 2 liters of water every day at the MCL level for a lifetime to have a one-in-a-million chance of having the described health effect. • MRDL - Maximum Residual Disinfectant Level or MRDL: The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for the control of microbial contaminants. • MRDLG - Maximum residual disinfectant level goal. The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contaminants. • AL - Action Level, or the concentration of a contaminant which, when exceeded, triggers treatment or other requirements which a water system must follow. • Below Detection Level (BDL) - Laboratory analysis indicates that the contaminant is not present at a level that can be detected. • Non-Defects (ND) - Laboratory analysis indicates that the contaminant is not present. • Parts per million (ppm) or Milligrams per liter (mg/l) - Explained as a relation to time and money as one part per million corresponds to one minute in two years or a single penny in $10,000. • Parts per billion (ppb) or Micrograms per liter - Explained as a relation to time and money as one part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000. Total Coliform Bacteria Copper 1 Combined radium Fluoride Lead 1 TTHM (Total Trihalomethanes) Haloacetic Acids (HAA5) Chlorine N N N N N N N N 0 90 th % = .01 .51 AVG 1.46 90 th % = .5 1.3 Avg. BDL 1.0-1.3 0.39- 0.64 2018 2016 2012 2018 2018 ppm ppm PCi/1 ppb ppb ppb ppm 0 0 1.3 4 0 0 MRDLG = 4 <2 positive samples AL=1.3 4 5 AL=15 80 60 Naturally present in the environment Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives Erosion of natural deposits Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories Corrosion of household plumbing systems, erosion of natural deposits Erosion of natural deposits; used in water treatment By-product of drinking water chlorination By-product of drinking water disinfection Water additive used to control microbes Contaminant Violation Yes/No Level Found Range of Detections Date of Sample Unit Measurement Likely Source of Contamination MCLG MCL MRDL = 4 2016 BDL 2018 0 2018 Sodium N 9.13 2018 ppm N/A N/A A467/19-1
