2025 Annual Drinking Water Quality Report The Town of Fort Mill PWS ID#: SC461003 The Town of Fort Mill is pleased to present the Annual Drinking Water Quality Report for 2025. This report provides a snapshot of your water quality over the past year, including details about your water sources, what your water contains, and how it compares to standards established by state and federal regulatory agencies. Our top priority is delivering safe and reliable drinking water to our community. Our team of dedicated professionals works continuously to monitor water quality and maintain system reliability. We are committed not only to protecting public health, but also to safeguarding our water resources and enhancing the quality of life in our community. Just as important, we believe that informed customers are our strongest partners. In 2025, the Town of Fort Mill’s drinking water met all state and federal water quality standards. Providing safe drinking water is both a responsibility and a commitment we take seriously, and we appreciate the confidence you place in us to serve you. For more information please contact: Al Huff Phone: 803-396-9726 Spanish (Española) Este informe contiene informacion muy importante sobre la calidad de su agua beber. Traduscalo o hable con alguien que lo entienda bien. Is my water safe? We are pleased to present this year’s Annual Water Quality Report (Consumer Confidence Report) as required by the Safe Drinking Water Act (SDWA). This report is designed to pro- vide details about where your water comes from, what it contains, and how it compares to standards set by regulatory agencies. This report is a snapshot of last year’s water quality. We are committed to providing you with information because informed customers are our best allies. Do I need to take special precautions? Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno- compromised persons such as persons with cancer undergoing chemo- therapy, 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/Centers for Disease Control (CDC) guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Water Drinking Hotline (800-426-4791). Where does my water come from? The Town of Fort Mill purchases its drinking water from City of Rock Hill. Lake Wylie is the City of Rock Hill’s raw water source. Raw water is pumped to the Rock Hill treatment facility where treatment takes place. Rock Hill monitors its water treatment process on a 24-hour basis. The Town of Fort Mill also conducts additional testing throughout its distribution system. Source water assessment and its availability Raw water sources are most susceptible to contamination from runoff or environmental conditions. Why are there contaminants in my drinking water? 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 Environmental Protection Agency’s (EPA) Safe Drinking Water Hotline (800-426-4791). The sources of drinking water (both tap water 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: 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 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 gas stations, urban storm water runoff, and septic systems; and radioactive contaminants, which can be naturally occurring or be the result of oil and gas produc- tion and mining activities. 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 (FDA) regulations establish limits for contaminants in bottled water which must provide the same protection for public health. • Take short showers. • Water plants only when necessary. • Shut off water while brushing your teeth. • Fix leaky toilets and faucets. • Use a water-efficient showerhead. • Adjust sprinklers so only your lawn is watered. • Run clothes washer and dishwasher only when full. • Teach your kids about water conservation. 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. 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. • Dispose of chemicals properly. • Pick up after your pets. • Volunteer in your community. Find a watershed organization and • If you use a septic system, properly maintain your system to reduce volunteer to help. Use EPA’s Adopt Your Watershed to locate groups leaching to water sources or consider connecting to a public system. in your community. • Organize a storm drain stenciling project with your local government or water provider.Additional Information for Lead 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. TOWN OF FORT MILL (SC4610003) 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. 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. Water Quality Data Table In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the amount of contaminants in water provided by public water systems. The table below lists all the drinking water contaminants that we detected during the calendar year of this report. Although many more contaminants were tested, only those substances listed below were found in your water. All sources of drinking water contain some naturally occurring contaminants. At low levels, these substances are generally not harmful in our drinking water. Removing all contaminants would be extremely expensive, and in most cases, would not provide increased protection of public health. A few naturally occurring minerals may improve the taste of drinking water and have nutritional value at low levels. Unless otherwise noted, the data presented in this table is from testing done in the calendar year of the report. The EPA or the State requires us to monitor for certain contaminants less than once per year because the concentrations of these contaminants do not vary significantly from year to year, or the system is not considered vulnerable to this type of contamination. As such, some of our data, though representative, may be more than one year old. In this table you will find terms and abbreviations that might not be familiar to you. To help you better understand these terms, we have provided the definitions below the table. WATER QUALITY DATA TABLE Lead and Copper – Inorganic Contaminants – Town of Fort Mill (SC4610003) MCLG or # Samples Exceeds AL Sample Typical Source AL Your Water Contaminants (unit of measure) MRDLG Exceeding AL (Yes/No) Date Copper-action level at consumer Corrosion of household plumbing systems. taps (ppm) 1.3 1.3 0.068 0 No 2024 Erosion of natural deposits. Lead-action level at consumer Corrosion of household plumbing systems. taps (ppb) 0 15 0 1 No 2024 Erosion of natural deposits. Disinfectants and Disinfection By-Products – Town of Fort Mill (There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.) Range of Disinfectants and Disinfection MCL, TT, or Highest Lev- Violation Sample Typical Source MCLG or MRDLG Levels By-Products MRDL el Detected (Yes or No) Date Detected Chlorine (ppm) MRDLG=4 MRDL=4 1.7 1.0 – 1.3 No 2025 Water additive used to control microbes. Haloacetic Acids (HAA5) (ppb) No goal for the 60 16 8.8 – 26.6 No 2025 By-product of drinking water disinfection. total Total Trihalomethanes (TTHM) No goal for the (ppb) 80 32 17.6 – 93.2 No 2025 By-product of drinking water disinfection. total Unregulated Contaminant Monitoring Rule (UCMR5) Results – Town of Fort Mill Highest level Range of level Typical Source MCLG MCL units Violation Sample Date Analyte detected detected PFHxA Not Regulated Not regulated ppt 3.8 (avg) 3.1 – 4.4 No 2024 Leaching PFPeA Not Regulated Not Regulated ppt 3.9 (avg) 3.2 – 4.6 No 2024 Leaching CHEMICAL AND RADIONUCLIDE CONSTITUENTS FOR DRINKING WATER PURCHASED FROM THE CITY OF ROCK HILL (SC4610002) MCLG or MCL, TT, or Detect in Violation Typical Source Contaminants (unit of Range Sample Date MRDLG MRDL Your Water (Yes or No) measure) Nitrate (ppm) Runoff from fertilizer use; leaching from septic 10 10 0.43 0.43-0.43 No 2025 tanks, sewage; erosion of natural deposits Erosion of natural deposits; water additive which Fluoride (ppm) 4 4 0.64 0.64-0.64 No 2025 promotes strong teeth; discharge from fertilizer and aluminum factories Sodium (ppm) NA NA 5.2 5.2-5.2 No 2025 Erosion of natural deposits. Leaching Unregulated Contaminant Hardness (ppm) (optional) NA NA 35 18-35 No 2025 Erosion of natural deposits. Leaching Tritium (pCi/L)* NA 4 mrem/yr 1910 pCi/L 452-1910 No 2025 Decay of natural and man-made deposits *EPA’s dose-based drinking water standard of 4 mrem/year is based on a maximum contaminant level of 20,000 pCi/L for tritium. Combined Radium 226 & 228 ** 0 5 1.41