City of De Leon 2023 Annual Drinking Water Report (Also known as the Consumer Confidence Report) Water System Identification Number TX0470002 Annual Water Quality Report for the period of. January: 11 to December 31, 2023 City of De Leon purchases treated surface water from the Upper Leon River MWD which treats surface water from Lake Proctor For more information regarding this report contact: David Denman, City Administrator, (254/893-2065 Este reporte incluye informacion. sobre el agua para tomar. Para asistencia en espanol, favor de llamar at  telephono (254) 893-2065 PUBLIC PARTICIPATION OPPORTUNITIES Date: 2nd Monday of the month. Time: 6:00 pm Sources of Drinking Water  Location: City Council Chambers at 125 S. Texas Street, De Leon, Texas 76444  Thes 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 thel land or through the ground, it dissolves naturally-occuring minerals and, in some cases, radioactive material, and 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 Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban storm water runoff, industrial or Pesticides and herbicides, which may come from a variety ofs 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. Radioactive contaminants, which can be naturally-occurring or be the result of oil and gas production and mining activities. Inc order to ensure that tap water iss safe to drink, EPA prescribes 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 Contaminants may bet found in drinking water that may cause taste, color, or odor problems. These types of problems are not necessarily causes for health concerns. For morei information on taste, odor, or color of drinking water, please contact the system's business office. 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; persons 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 atr risk from infections. You: should seek advice about drinking water from your physician or health care providers. Additional guidelines on appropriate means to lessen the risk of infection by Cryptosporidium are available from the Safe Drinking Water Hotline (800-426-4791). Ifpresent, elevated levels ofl lead can cause: serious health problems, especially for pregnant women and young children. Lead in drinking wateri is primarily from materials and components associated with service lines and home plumbing. We are responsible for providing high quality drinking water, but we 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! leadi in your water, your may wish to have your water tested. Information on lead in drinking water, testing methods, and: steps you can take tor minimize exposure isa available from the Safe Drinking Water Hotline or at P-PEEeA TCEQ completed a Source Water Susceptibility for all drinking water systems that owni their sources. This report describes the susceptibility and types of constituents that may come into contact with the drinking water source based on human activities and natural conditions. The system(s) from which we purchase our water received the assessment reports. For more information on source water assessments and protection efforts at Water Quality Test Results Explanation of Acronyms Used int this Report: Thet following tables contain scientific terms and measures, some of which Maximum Contaminant Level or MCL: The highest! level ofac contaminant thati is allowed inc drinking water. MCLS are set as close to the MCLGS asf feasible Maximum Contaminant Level Goal or MCLG: Thel level ofac contaminant in drinking water below which there is nok known or expected risk tot health. MCLGS allow Maximum Residual Disinfectant Level or MRDL: The highest level ofa disinfectant allowed in drinking water. There is convincing evidence that addition ofa disinfectant Maximum Residual Disinfectant Level Goal or MRDLG: The level ofa drinking water disinfectant below which there is no known or expected risk to health. MRDLGS Level 1 Assessment: Al level 18 assessment isa study of the water system toi identify potential problems and determine (if possible) why total coliform bacteria have been Level 2 Assessment: Al level 2 assessmenti is a very detailed study oft the water system toi identify potential problems and determine (ifp possible why anE E. coli MCL  can pick ups substances resulting from thep presence of animals ori from human activity. be obtained by calling the EPAS Safe Drinking Water Hotline at (800) 426-4791. Contaminants that may be present ins source water include:  operations, and wildlife.  domestic wastewater discharges, oil andg gas production, mining, or farming.  health.  Information about Source Water Assessments  our system contact David Denman, City Administrator, at (254) 893-2065.  explanation. available treatment technology. margin of safety.  may require best using the fora do  Avg: Regulatory compliance with some MCLS are based onr running annual average of monthly samples.  is necessary for control ofn microbial contaminants. foundi ino our water system.  not reflect the benefits of the use ofd disinfectants to control microbial contaminants.  violation has occurred andlor why total coliform bacteria have been found in our water system onr multiple occasions.    Treatment' Technique or TT:A A required process intended tor reduce the level ofac contaminant in drinking water.  MFL: million fibers perl liter (ar measure ofa asbestos) mrem: millirems per year (ar measure ofr radiation absorbed byt the body) pCi/L: picocuries perl liter (ar measure of radioactivity) ppq: parts perc quadrillion, orp picograms per liter (pg/L)  na: nota applicable  NTU: nephelometric turbidity units (ar measure oft ppb: micrograms per liter or parts per billion-or one ounce turbidity). in7,350,000  ppm: miligrams perl liter orp parts perr million or one ounce in7 7,350 gallons ofv water ppt: parts pert trillion, or nanograms per liter Disinfectant (Chloramine) levels Testing Results in the City of De Leon Distribution System Disinfectant Year of Average Minimum Maximum MRDL MRDLG Unitof  gallons ofv water  (ng/L)  Violation Source of chemical N Disinfectant used to control microbes Source Likely of Contaminant  the Range  Level 1.93  Level 0.6  Level 5.0  Measurement ppm  Chloramines 2023  4.0  4.0  Microbiological (Coliforms) Testing Results in the City of De Leon System  Type of Contaminant  Year of Range Total  E. coli Maximum Contaminant coli or  Total Number Violation of Positive E. Positive Total Coliform Samples Collected  Coliform Maximum Contaminant Level Level One positive monthly sample  Coliform bacteria 2023  N  Naturally present in environment.  2023 Water Loss Audit Information 7,001,691  Time Period Covered by Audit Estimated Gallons of Water Lost During 2023  Comments and/or Explanations Most oft the water lost during 2023 was the result of flushing to maintain water quality or leaks in the distribution system of forar margino safety. Action Leve!:  January to December 2023  2023 Regulated Contaminants Detected  Lead and Copper Lead and Date Copper Sampled Copper 2023 Disinfectants and Disinfection By-Products Haloacetic Acids (HAA5) 2023 Total Trihalomethanes (TTHM)  Definitions: Actionl Level Goal( (ALG): Thel level ofa contaminant in drinking watert below which there is nol known or expected risk to health. ALGs allow The concentration ofac contaminantw which, ifexceeded, triggers treatment or other requirements which awaters systemr mustfollow.  MCLG Action 90th 1.3 1.3 Date 2023 Date 2023 07/15/2020 0.16  #Sites Units Violation Likely Source of  Level(AL) Percentile Over AL 0.1649  Contamination  0  ppm N  Erosion ofr natural deposits; Leaching from wood preservatives; Corrosion of household plumbing systems  Regulated Contaminants in the City of De Leon Distribution System  Collection Highest Range of MCLG MCL Units Violation Likely Source of Contamination  Level Individual Detected Samples 21 65 Level Individual Detected Samples 0.29 0.237-0.29 10 0.16-0.16 1  11.5-25.1 Nog goalf for 60 ppb N 16.3-80.6 No goalf for 80 ppb N  By-product of drinking water disinfection. By-product of drinkingy water disinfection.  the total thet total  Inorganic Contaminants Collection Highest Range of MCLG  MCL Units Violation Likely Source of Contamination  Nitrate [measureda as Nitrogen) Nitrite (measured. as Nitrogen)  10 ppm N 1 ppm N  Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits. Runoff from fertilizer use; Leaching from: septic tanks, sewage; Erosion of natural deposits.    Regulated Contaminants in the Source Water - Upper Leon River MWD  Lead and Copper Lead and Date Copper Copper Lead  Definitions concentration Action Level Goal( (ALG): Thel level ofa contaminanti inc drinking water below which there is no known or expectedi risk tor health. ALGs allow ofa acontaminant which, exceeded. triggerst treatment or other requirements which av water systemr must follow.  forar margin of safety. Action Level: The Violation Likely Source if Contamination Erosion of naturah deposits; Leaching from wood preservatives; Corrosion of household plumbing systems. Corrosion of household plumbing systems; Erosion ofr natural deposits.  MCLG  Action Level 90th (AL) 1.3 15  # Sites over Units 0 1  Sampled 09/17/2021 1.3 09/17/2021 0  Percentile AL 0.039 1.5  ppm ppb  N N  Disinfection By-Products Chlorite Haloacetic Acids (HAA5) 2023 Total Trihalomethanes (TTHM) Inorganic Contaminants Arsenic Barium Fluoride Nitrate [measureda as 2023 Nitrogen) Selenium Radioactive Contaminants  Collection Highest Range of MCLG Level Individual Detected Samples 0.962 30 85 Level Individual Detected Samples 2 2.4-2.4 0.113 0.113-0.113 2 0.2 0.21-0.21 4 0.22 4.1  MCL Units Violation Likely Source of Contamination  Date 2023 2023 Date 2023 2023 2023  0-0.962 0.8  1  ppm N  By-product of drinking water disinfection. By-product of drinking water disinfection. By-product of drinking water disinfection.  21.5-35 Nog goalf for 60 ppb N 50.9-99.1 No goalf for 80 ppb N  the total the total 0  Collection Highest Range of MCLG MCL Units Violation Likely Source of Contamination  10 ppb N 2 ppm N 4.0 ppm N  Erosion of natural deposits; Runoff from orchards; Runoff from glass and electronics production wastes Discharge ofc drilling wastes; Discharge from metalr refineries; Erosion of natural deposits. Erosion ofr natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories. Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion ofr natural deposits. Discharge from petroleum and metal refineries; Erosion ofr natural deposits; Discharge from mines. Decay of natural and man- made deposits.  0.22-0.22 10 10 ppm N  2023 Date  4.1-4.1  50 50 ppb N  Collection Highest Range of MCLG MCL Units Violation Likely Source of Contamination  Level Individual Detected Samples 8.4-8.4 fork beta particles.  Beta/photon emitters 02/28/2018 8.4 "EPAC considers 50 PCIL tob be thel level of Violations- - City of De Leon Total Trihalomethanes (TTHM) Violation Type MCL, LRAA MCL, LRAA MCL, LRAA  0  50 pCi/L" N  CITY OF DE LEON purchases water from UPPER LEON RIVER MWD. UPPER LEON RIVER MWD provides  purchase surface water from Leon River located in COMANCHE County. kidneys, or central nervous systems, and may have ani increased risk of getting cancer  Some people who drink water containing trihalomethanes: in excess of the MCL over many years may experience problems with their liver,  Violation Begin Violation End 01/01/2023 04/01/2023 07/01/2023  Violation Explanation indicated. indicated.  03/31/2023 06/30/2023 09/30/2023  Water samples showed that the amount of this contaminant in our drinking water was above its standard (called a maximum contaminant level and abbreviated MCL) for the period Water samples showed that the amount of this contaminant in our drinking water was above its standard (called a maximum contaminant level and abbreviated MCL) for the period Water samples showed that the amount of this contaminant in our drinking water was above its standard (called a maximum    contaminant level and abbreviated MCL) for the period Water samples showed that the amount of this contaminant in our drinking water was above its standard (called a maximum contaminant level and abbreviated MCL) for the period  indicated. indicated.  MCL, LRAA  10/01/2023  12/31/2023  Violations- Upper Leon River MWD Total Trihalomethanes (TTHM) Violation Type MCL, LRAA  Some people who drink water containing trihalomethanes: ine excess of the MCL over many years may experience problems with their liver,  kidneys, or central nervous systems, and may have an increased risk of getting cancer.  Violation Begin Violation End 10/01/2023  Violation Explanation indicated.  12/31/2023  Water samples showed that the amount of this contaminant in our drinking water was above its standard (called a maximum contaminant level and abbreviated MCL) for the period