2017 ANNUAL DRINKING WATER QUALITY REPORT

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High Hills Rural Water Company, Inc. 2017 Annual Drinking Water Quality Report SC#4320003 Prepared June 2018 We are pleased to present to you this year's Annual Quality Water Report as required by the Safe Drinking Water Act (SDWA). This report is designed to inform you about the quality water and services we deliver to you every day. Included are details about where your water comes from, what it contains and how it compares to the Environmental Protection Agency (EPA) and The South Carolina Department of Health and Environmental Control (SCDHEC) standards. 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. This Annual Drinking Water Quality Report will provide you with accurate facts and will be distributed to you on an annual basis as required by EPA and SCDHEC. Our sourcewater assessment is available at the SCDHEC website: www.scdhec.gov/HomeAndEnvironment/Water/SourceWaterProtection/mindex.htm. If you do not have internet access, please contact John Loney at (803) 499-4118 to make arrangements to review this document. We want our valued customers to be informed about your water utility company. If you want to learn more, please attend any of our regularly scheduled meetings. The meetings are held on the second Monday of each month at the High Hills Rural Water Company office at 7:00 PM. We ask that you call in advance if you wish to attend the meeting as space is limited. If you have any questions about this report or concerning the company, Please contact John Loney at (803) 499-4118, Monday through Friday, 8:00AM-5:00PM. WHERE DOES YOUR WATER COME FROM? Your water source is derived from 5 (five) deep water wells which draw from the Black Creek and Upper Tuscaloosa Aquifers. WATER QUALITY As water travels over the land or underground, it can pick up substances or constituents such as microbes, inorganic and organic chemicals, and radioactive substances. All drinking water, including bottled drinking water, may be reasonably expected to contain at least small amounts of some contaminants. It's important to remember that the presence of these constituents does not necessarily pose a health risk. High Hills Rural Water Company routinely monitors for constituents in your drinking water according to Federal and State laws. This table shows the results of our monitoring for the period of January 1st to December 31st, 2016. The following list of definitions will be helpful to you in understanding the table of constituents. We’re pleased to report that our drinking water is safe and meets federal and state requirements. Tables for Unit Description and Important Drinking Water Definitions Unit Descriptions Term Definition ppm ppm: parts per million, or milligrams per liter (mg/L) ppb ppb: parts per billion, or micrograms per liter (µg/L) NA NA: not applicable ND ND: Not detected NR NR: Monitoring not required, but recommended. Important Drinking Water Definitions Term Definition MCLG MCLG: Maximum Contaminant Level Goal: 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 MCL: Maximum Contaminant Level: 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. TT TT: Treatment Technique: A required process intended to reduce the level of a contaminant in drinking water. AL AL: Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow. Variances and Exemptions Variances and Exemptions: State or EPA permission not to meet an MCL or a treatment technique under certain conditions. MRDLG MRDLG: Maximum residual disinfection 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. MRDL MRDL: Maximum residual disinfectant level. The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants. MNR MNR: Monitored Not Regulated MPL MPL: State Assigned Maximum Permissible Level WATER QUALITY DATA TABLE Contaminants (unit of measure) MCLG or MRDLG MCL, TT, or MRDL Detect in Your Water Range Violation (Yes or No) Sample Date Typical Source Nitrate (ppm) 10 10 0.24 0.12 – 0.24 No 2017 Runoff from fertilizer use; Leaching from septic tanks, sewage. Erosion of natural deposits. Sodium (ppm) NA NA 4.5 3.4 – 4.5 No 2017 Erosion of natural deposits. Beryllium (ppb) 4 4 1.1 0 – 1.1 No 2017 Discharge from metal refineries and coal-burning factories; Discharge from electrical, aerospace, and defense industries Fluoride (ppm) 4 4 1.9 0.97 – 1.9 No 2017 Erosion of natural deposits. Combined Radium (pCi/L) 0 5 3 0 – 3 No 2017 Erosion of natural deposits. Lead and Copper – Inorganic Contaminants Contaminants (unit of measure) MCLG or MRDLG AL Your Water # Samples Exceeding AL Exceeds AL (Yes/No) Sample Date Typical Source 567 .3 1.3 0.22 0 No 2016 Corrosion of household plumbing systems. Erosion of natural deposits. Lead-action level at consumer taps (ppb) 0 15 1.5 0 No Corrosion of household plumbing systems. Erosion of natural deposits. Disinfection & Disinfection By-Products (There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.) Contaminants (unit of measure) MCLG or MRDLG MCL, TT, or MRDL Detect in Your Water Range Violation (Yes or No) Sample Date Typical Source Chlorine (ppm) 4 4 1.0 RAA 1.09 – 1.45 No 2017 Water Additive used to control microbes. Haloacetic Acids (HAA5) (ppb) NA 60 1.0 LRAA 0 – 1.23 No 2017 By-product of drinking water chlorination. TTHMs [Total Trihalomethanes] (ppb) NA 80 1.0 LRAA 0 – 1.71 No 2017 By-product of drinking water disinfection. Additional Monitoring Unregulated contaminant monitoring helps EPA to determine where certain contaminants occur and whether the Agency should consider regulating those contaminants in the future. Unregulated Contaminant Monitoring (2014) Reported Level Range Low High Chromium (ppb) 0.27 0.23 0.27 Cobalt (ppb) 1.9 1.2 1.9 Hexavalent Chromium (dissolved) (ppb) 0.23 0.035 0.23 Strontium (ppb) 27 20 27 Vanadium (ppb) 0.67 0.2 0.67 WHAT DOES THE ABOVE INFORMATION MEAN? 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. If present, elevated lead levels can cause serous health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. High Hills Rural Water Company 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 drinking water, you may wish to have your water tested. Information 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/safewater/lead All sources of drinking water are subject to potential contamination by substances that are naturally occurring or man made. These substances can be microbes, inorganic or organic chemicals and radioactive substances. All 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 the water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency’s Safe Drinking Water Hotline at 1-800-426-4791. 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 1-800-426-4791. How can I get involved? Water Conservation Tips Did you know that the average U.S. household uses approximately 400 gallons of water per day or 100 gallons per person per day? Luckily, there are many low-cost and no-cost ways to conserve water. Small changes can make a big difference - try one today and soon it will become second nature. Take short showers - a 5-minute shower uses 4 to 5 gallons of water compared to up to 50 gallons for a bath. Shut off water while brushing your teeth, washing your hair and shaving and save up to 500 gallons a month. Use a water-efficient showerhead. They're inexpensive, easy to install, and can save you up to 750 gallons a month. Run your clothes washer and dishwasher only when they are full. You can save up to 1,000 gallons a month. Water plants only when necessary. Fix leaky toilets and faucets. Faucet washers are inexpensive and take only a few minutes to replace. To check your toilet for a leak, place a few drops of food coloring in the tank and wait. If it seeps into the toilet bowl without flushing, you have a leak. Fixing it or replacing it with a new, more efficient model can save up to 1,000 gallons a month. Adjust sprinklers so only your lawn is watered. Apply water only as fast as the soil can absorb it and during the cooler parts of the day to reduce evaporation. Teach your kids about water conservation to ensure a future generation that uses water wisely. Make it a family effort to reduce next month's water bill! Visit www.epa.gov/watersense for more information. Source Water Protection Tips Protection of drinking water is everyone's responsibility. You can help protect your community's drinking water source in several ways: Eliminate excess use of lawn and garden fertilizers and pesticides - they contain hazardous chemicals that can reach your drinking water source. Pick up after your pets. If you have your own septic system, properly maintain your system to reduce leaching to water sources or consider connecting to a public water system. Dispose of chemicals properly; take used motor oil to a recycling center. Volunteer in your community. Find a watershed or wellhead protection organization in your community and volunteer to help. If there are no active groups, consider starting one. Use EPA's Adopt Your Watershed to locate groups in your community, or visit the Watershed Information Network's How to Start a Watershed Team. Organize a storm drain stenciling project with your local government or water supplier. Stencil a message next to the street drain reminding people "Dump No Waste - Drains to River" or "Protect Your Water." Produce and distribute a flyer for households to remind residents that storm drains dump directly into your local water body
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