The URL can be used to link to this page

Home My Public Portal About2006TybeeCCR.pdfAnnual Drinking Water Quality Report The City of Tybee Island 2006 We're pleased to present to you this year's Annual Drinking Water Quality Report. This report is designed to inform you about the quality water and services we deliver to you every day. Our constant goal is to provide you with a safe and dependable supply of drinking water. We want you to understand the efforts we make to continually improve the water treatment process and protect our water resources. We are committed to ensuring the quality of your water. Our wells draw groundwater from the Upper Floridan Aquifer. We’re pleased to report that our drinking water is safe and meets federal and state requirements. If you have any questions about this report or concerning your water utility, please contact George Reese at (912) 786-4573 . We want our valued customers to be informed about their water utility. If you want to learn more, please attend any of our regularly scheduled Town Council meetings. They are held on the second and fourth Thursday of each month at 7:30 P.M. at the Tybee Island City Hall. This report will not be mailed to consumers but copies may be obtained from City Hall. The Tybee Island Water Department routinely monitors for constituents in your drinking water according to Federal and State laws. The Test Results table shows the monitoring results for the period of January 1st to December 31st, 2006 or as shown in the table. The 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, and can pick up substances resulting from the presence of animals or from human activity. Contaminants that may be present in source water include the following:  Microbial contaminants, such as viruses and bacteria that 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 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- occurring or be the result of oil and gas production and mining activities. In order to ensure that tap water is safe to drink, EPA prescribes regulations that limit the amount of certain contaminants in water provided by public water systems. Food and Drug Administration regulations establish limits for contaminants in bottled water which must provide the same protection for public health. The Test Results table lists the contaminants which were detected and the level at which the detection occurred. For brevity, we have only listed the contaminants which were detected within the past year’s tests or the latest test for the contaminant. In this table you will find many terms and abbreviations you might not be familiar with. To help you better understand these terms we've provided the following definitions: Parts per million (ppm) or Milligrams per liter (mg/l) - 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 (µg/l) - one part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000. Maximum Contaminant Level (MCL): “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. Maximum Contaminant Level Goal (MCLG): “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.” Maximum Residual Disinfectant Level (MRDL): “The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbiological contaminants.” Maximum Residual Disinfectant Level Goal (MRDLG): “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.” Action Level (AL) - the concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow. MNR - Monitoring not required, but recommended. As you can see by the table, our system had no violations. We’re proud that your drinking water meets or exceeds all Federal and State requirements. We have learned through our monitoring and testing that some constituents have been detected. The EPA has determined that your water IS SAFE at these levels. Drinking water, including bottled water, may reasonably be expected 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 contaminants and potential health effects can be obtained by calling the EPA’s Safe Drinking Water Hotline (1-800-426-4791). MCL’s are set at very stringent levels. 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. Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno- compromised persons such as persons with cancer undergoing chemotherapy, 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 drinking water 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). Please call our office if you have questions. We at the Tybee Island Water Department work around the clock to provide top quality water to every tap. We ask that all our customers help us protect our water sources, which are the heart of our community, our way of life and our children’s future. Georgia Source Water Assessment Program is currently pending of this area. This report will be made available to the public once completed by the GA Environmental Protection Division (EPD). EPD has determined that the concentration of certain water quality monitoring parameters does not change frequently within our system therefore, some of the data represented in this report are greater than one year old. Trihalomethane is less than 80 ppb and in compliance with reporting standards. Test Results Parameter MCL MCLG Tybee Island Water System Range of Detections Sample Date Violation Typical Source of Contamination Inorganic Contaminants Fluoride (ppm) 4 4 0.83 NA 2005 NO Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories Lead and Copper Parameter MCL MCLG Tybee Island Water System Range of Detections Sample Date Violation Typical Source of Contamination Lead (ppm) Copper (ppm) 15 1.3 0 1.3 2.7 0.120 0 out of 10 sites sampled 0 out of 10 sites sampled 2005 2005 NO NO Corrosion of household plumbing systems; erosion of natural deposits Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives Organic Contaminants Parameter MCL MCLG Tybee Island Water System Range of Detections Sample Date Violation Typical Source of Contamination Total Trihalomethanes (TTHMS/ppb) 100 n/a 0.73 25-135 2006 NO By-product of drinking water chlorination process