SEDGWICK TOWN OF 2024) Drinking Water Quality Report  Covering Data For Calendar Year 2023 Public Water System. ID: C00158010  Esta esi informacion importante. Si nol laj pueden leer, necesitan que alguien sel la traduzca.  We are pleased to present to yout this year" s water quality report. Our constant goal ist toj provide you with a: safe and dependable supply of drinking water. Please contact HEATHER MOORE: at 970-463-8814 with any questions or for public participation  opportunities that may affect water quality. General Information  regulations limiting the amount of certain contaminants in water provided by public water systems. The Food and Drug  All drinking water, including bottled water, may reasonably be  expected to contain at least small amounts ofs some contaminants. Administration regulations establish limits for contaminants in The presence of contaminants does not necessarily indicate that the bottled water that must provide the same protection for public Protection Agency's Safe Drinking Water Hotline (1-800-426-4791) Lead can cause serious health problems, especially for pregnant Some people may be more vulnerable to contaminants in drinking home plumbing. We: are responsible for providing high water than the general population. Immunocompromised persons drinking water: and removing lead pipes, but cannot control quality the such as persons with cancer undergoing chemotherapy, persons who variety of materials usedi inj plumbing components in home. have undergone organ transplants, people withl HIV-AIDS or other You: share the responsibility for protecting yourself and your your family particularly at risk ofi infections. These people should: seek advice byi identifying andi removing lead materials within your) home about drinking water from their health care providers. For more plumbing and takings steps toI reduce your family's risk. Before information about contaminants andj potential health effects, ort to drinking tap water, flush your pipes for several minutes by running receive a copy oft the U.S. Environmental Protection Agency (EPA) your tap, taking as shower, doing laundry or al load of dishes. You appropriate means tol lessent the risk ofi infection by Cryptosporidium Institute accredited certifier to1 reduce leadi in drinking water.) If you and microbiological contaminants call thel EPA Safe Drinking Water are concerned. about lead in your watera and wish tol have water  water poses al health risk. More information about contaminants and health.  potential health effects can be obtained by calling the Environmental Lead in Drinking Water  orl by visiting pagovground-water-anddrinking-wate,  women and young children. Lead in drinking water is primarily from materials and components associated with service lines and  immune system disorders, some elderly, andi infants can be  from the leadi iny yourl home plumbing. You can take responsibility  and the U.S. Centers for Disease Control (CDC) guidelines on  can: also use ai filter certified by an American National Standards tested, contact HEATHER MOORE at 970-463-8814. your Information oni leadi in drinking water, testing methods, and steps can take to  Hotline at (1-800-426-4791). sources The:  of drinking water (both tap water and bottled water) minimize exposure is available at pAgovalewater/ead you include rivers, lakes, streams, ponds, reservoirs, springs, and wells. Source Water Assessment and Protection As watert travels over the surface of thel land ort through the ground, The Colorado Department of Public Health and Environment (SWAP) radioactive material, and can pick ups substances resulting from the water supply. For general information ort to  itdissolves naturally occurring minerals and, ins some cases, presence of animals or froml human activity. Contaminants that may sewage treatment plants, septic systems, agricultural livestock occurring or result from urban storm water runoff, industrial or  have provided us with a Source Water Assessment report please visity ocdcomplancecomker. Ther reporti is located table using our system name or ID, or MOORE at 970-463-8814. The Source Water Assessment Report could occur. Itg does noti mean that the contamination has orwill our current water treatment capabilities and prepare for future water protection plan. Potential sources of contamination inc our Drinking Water Quality Report, tol learn more about our system, or to attend scheduled public meetings. We want you, our valued customers, tol bei informed about the services we provide andt the quality water we deliver tos youe every day.  may Report for our obtain: a copy oft the by contacting HEATHER  be present ins source water include: operations, and wildlife.  "Microbial contaminants: viruses and bacteria that may come from under Guidance: Source Water Assessment Reports". Searcht the inorganic contaminants: salts and metals, which can be naturally- provides a screening- level evaluation of potential contamination that domestic wastewater discharges, oil and gas production, mining, or occur. We can use this information toe evaluate the need toi improve Pesticides and herbicides: may come. from a variety ofs sources, contamination threats. This can help us ensure that quality finished such as agriculture, urban storm water runoff, and residential uses. water is delivered to your homes. In: addition, the source water Radioactive contaminants: can be naturally occurring or be the assessment. results provide: as starting point for developing a source Organic chemical contaminants: including synthetic and volatile source water area are listed on the next page. organic chemicals, which are byproducts ofi industrial processes and Please contact ust tol learn more about what you can do tol help petroleum production, and alsor may come from gas stations, urban protect your drinking water: sources, any questions about the  farming.  result of oil and gas production andi mining activities.  storm water runoff, and septic systems.  In ordert to ensure that tap wateri iss safet to drink, the Colorado Department of Public Health and Environment prescribes SEDGWICK TOWN OF, PWS ID: C00158010  2024 CCRI Page 1of6    Our Water Sources  Sources (Water Type- Source Type) WELL NO2N NORTH Groundwater-Wel), WELLI NO 1SOUTH Groundwater-Wel),  Potential Source(s) of Contamination Commercial/industria/Transportation, Road Miles  Terms and Abbreviations  Maximum Contaminant Level (MCL) - Thel highest level ofac contaminant allowed in drinking water. Treatment Technique (TT) - A required process intended tor reduce the level ofa contaminant in drinking water. Action Level (AL) - The concentration ofa contaminant which, ifexceeded, triggers treatment and other regulatory Maximum Residual Disinfectant Level (MRDL) - The highest level ofac disinfectant allowed in drinking water. There isconvincing evidence that addition ofa disinfectant is necessary for control of microbial contaminants. Maximum Contaminant Level Goal (MCLG) - The level of a contaminant in drinking water below which there is no Maximum Residual Disinfectant Level Goal (MRDLG) - The level ofa drinking water disinfectant, below which there isi nol known or expected risk tol health. MRDLGS do not reflect the benefits oft the use of disinfectants to control microbial Formal Enforcement Action (No Abbreviation) - Escalated action taken by the State (due to the risk to! public health. or Variance and) Exemptions (V/E) - Department permission not to1 meet a MCL or treatment technique under certain Gross Alpha (No Abbreviation) - Gross alphaj particle activity compliance value. Iti includes radium-226. but excludes Nephelometric Turbidity Unit (NTU) - Measure oft the clarity or cloudiness of water. Turbidity in excess of5NTUis Compliance Value (No Abbreviation)- - Single or calculated value used to determine ifr regulatory contaminant level (e.g. MCL) is met. Examples of calculated values are the 90th Percentile, Running Annual Average (RAA) and Locational  Health-Based - A violation of either al MCL orTT. Non-Health-Based - A violation that is not al MCL or TT.  requirements.  known or expected risk tol health. MCLGS allow for ar margin of safety.  contaminants.  Violation (No Abbreviation) - Failure to meet a Colorado Primary Drinking Water Regulation. number or severity of violations) to bring a non-compliant water system backi into compliance.  conditions. radon 222. and uranium.  Picocuries per liter (pCi/L) - Measure of the radioactivity in water.  just noticeable tot the typical person. Running Annual Average (LRAA). Average (x-bar) - Typical value. Range (R) -I Lowest value tot the highest value.  Sample Size (n) - Number or count of values (i.e. number of water samples collected).  Parts peri million = Milligrams per liter (ppm = mg/L) - One part per million corresponds to one minute int two years or Parts] per billion =l Micrograms per liter (ppb: =1 ug/L) - One part per billion corresponds to one minute in2 2,000y years, Level 1 Assessment - A: study of the waters system toi identify potential problems and determine (if possible) why total Level 2 Assessment - A very detailed study of the water system toi identify potential problems and determine (if possible) why an E. coli MCL violationl has occurred: and/or why total coliform bacteria have been foundi in our water system on  as single penny in $10.000. or as single penny in $10,000,000.  Not Applicable (N/A) - Does not apply or not available. coliform bacteria have been found in our waters system.  multiple occasions.  Detected Contaminants  SEDGWICK TOWN OF routinely monitors for contaminants in your drinking water according tol Federal and State laws. The following table(s) show all detections found in the period of. January It tol December 31. 2023 unless otherwise noted. The State of Colorado: requires us to monitor for certain contaminants less than once per. year because the concentrations of these contaminants are not expected to vary significantly from year to year, ort the: system is not considered vulnerable tot this type of contamination.  SEDGWICK TOWN OF, PWS ID: C00158010  2024 CCRI Page 2of6    Therefore, some of our data, though representative, may be more than one-year-old. Violations andi Formal Enforcement. Actions, if Note: Only detected contaminants sampled within the last 5 years appeari int this report. If no tables appear in this section. then no  any, are reported ini the next section oft thisi report. contaminants were detected: int thel lasti round ofi monitoring.  Disinfectants Sampledi in thel Distribution System Ifsample sizei isl lesst than 401 no more than 1: sample is below 0.2 ppm Typical Sources: Water additive used to control. microbes  TTR Requirement: At least 95% of samples per period (month or quarter) must be at least 0.2j ppm OR  Disinfectant Time) Period Name  Results  Number of Samples Sample TT MRDL  Below Level 0  Size Violation 1  Chlorine December, 2023 Lowest period percentage of samples  No 4.0p ppm  meeting' TT requirement: 100%  Lead and Copper Sampled in thel Distribution Systen  Contaminant Time Name Copper  90" Sample Unit of  90th AL 1.3  Sample Above AL Exceedance 0  90th AL No  Typical! Sources  Period Percentile Size Measure Percentile Sites Percentile  04/17/2023 0.11 to 04/18/2023 09/19/2023 to 09/19/2023 09/19/2023 to 09/19/2023 04/17/2023 to 04/18/2023  10  ppm  Corrosion of houschold plumbing systems; Erosion of natural deposits Corrosion of household plumbing systems; Erosion of natural deposits Corrosion of household plumbing systems; Erosion of natural deposits Corrosion of household plumbing systems; Erosion of natural deposits  Lead  0.9  10  ppb  15  0  No  Copper  0.1  10  ppm  1.3  0  No  Lead  0.6  10  ppb  15  0  No  Disinfection Byproducts Sampled in thel Distribution System  Name Year Average Range Sample Unit of MCL MCLG MCL  Typical Sourees Byproduct of drinking water disinfection  Low-High Size Measure  Violation No  Total 2023 4.8 Haloacetic  4.8to4.8  I  ppb  60 N/A  SEDGWICK* TOWN OF, PWS ID: C00158010  2024 CCR Page 30 of6    Disinfection Byproducts Sampled in thel Distribution System  Name Year Average Range Sample Unite of MCL MCLG MCL  Typical Sources  Low-H High Size Measure  Violation  Acids (HAA5) Trihalome thanes (TTHM)  Total 2023 14.6 14.6to14.6  ppb  80 N/A  No  Byproduct of drinking water disinfection  Radionuclides Sampled at thel Entry Point tot the Distribution. System  Contaminant Year Average Name Combined 2021 Radium Combined 2021 Uranium  Range Itol 12to12  Sample Unit of MCL MCLG MCL Typical Sources  Low-High Size Measure  Violation No No  1 12  1 1  pCI/L ppb  5 0 30 0  Erosion of natiral deposits Erosion of natural deposits  Inorganic Contaminants Sampled at the Entry Point to the) Distribution System  Contaminant Year Average Name Arsenic 2020 4.4  Range 4.4t04.4  Sample Unit of MCL MCLG MCL Typical Sources  Low - High Size Measure  Violation No  ppb  10 0  Erosion of natural deposits; runoff from orchards; runoffi from glass and electronics production wastes Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and  Barium 2020 0.13  0.13to0.13  ppm  2 2  No  Fluoride 2020 0.21  0.21 to0.21  ppm  4 4  No  SEDGWICKTOWNG OF, PWS ID: C00158010  2024 CCRI Page 40 of6    Inorganic Contaminants Sampled: at thel Entry Point to thel Distribution System  Contaminant Year Average Name  Range  Sample Unit of MCL MCLG MCL  Low-E High Size Measure  Violation Typical Sources  aluminum factories Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines nitrate  Nitrate 2023 6.29 6.29t06.29  ppm  10 10  No  Selenium 2020 5.8  5.8to5.8  ppb  50 50  No  Nitrate: Nitrate in drinking water at levels above 101 ppm isal health risk fori infants of less than six months of levels in drinking water can cause bluel baby syndrome. Nitrate levels may rise quickly for short periods oft time age. because High of rainfall or agricultural activity. If you: are caring for ani infant you should ask advice from yourl health care provider.  Secondary Contaminants*s  **Secondary standards are non-enforceable guidelines for contaminants that may cause cosmetic effects (such: as skin, or tooth  discoloration) or aesthetic effects (such as taste, odor, or color)i in drinking water.  Contaminant Year Average  Range Low-I High 25.8to25.8  Sample Size  Unit of Measure ppm  Secondary Standard N/A  Name Sodium  2020 25.8  Violations, Significant Deficiencies, and Formal Enforcement Actions  No Violations or Formal Enforcement Actions  SEDGWICK* TOWN OF, PWSI ID: C00158010  2024 CCR: Page 50f6    SEDGWICK* TOWN OF, PWSI ID: C00158010  2024 CCR Page 6of6