The URL can be used to link to this page

Home My WebLink AboutDDW-2025-004050Definitions AKA = also known as AL = Action Level (the concentration of a contaminant which, if exceeded, triggers treatment or other requirements that a water system must follow) CaCO3 = Calcium Carbonate cm = centimeter cm-1 = inverse centimeter (unit of measurement for UV254) HAA5 = Haloacetic Acids (these are the five regulated HAAs: trichloroacetic acid, dibromoacetic acid, monochloroacetic acid, monobromoacetic acid, and dichloroacetic acid) HAA6 = Haloacetic Acids (these include the five regulated HAAs listed above under HAA5 plus bromochloroacetic acid which currently is not regulated) LCWTP = Little Cottonwood Water Treatment Plant MCL = Maximum Contaminant Level (the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to MCLGs as feasible using the best available technology) MCLG = Maximum Contaminant Level Goal (the level of a contaminant in drinking water below which there is no known or expected risk to health) MFL = Million Fibers per Liter mL =milliliters MRL = Method Reporting Limit (the smallest concentration or amount of an analyte that can be quantitatively determined with acceptable precision and accuracy under stated analytical conditions) MTBE = Methyl T-Butyl Ether MWDSLS = Metropolitan Water District of Salt Lake & Sandy N/A = Not Applicable NTU = Nephelometric Turbidity Units (turbidity can interfere with disinfection and provide a medium for microbial growth. It may indicate the presence of disease causing organisms. These organisms include bacteria, viruses, and parasites that can cause symptoms, such as nausea, cramps, diarrhea, and associated headaches) PCBs = Polychlorinated Biphenyls pCi/L = picocuries per liter (unit of measure for radioactivity) POE = Point of Entry POMWTP = Point of the Mountain Water Treatment Plant ppb = parts per billion or micrograms per liter (µg/L) ppm = parts per million or milligrams per liter (mg/L) SLA = Salt Lake Aqueduct SMCL = Secondary Maximum Contaminant Level (These parameters are used to indicate levels at which the aesthetic quality of the water would be negatively impacted. Figures above this level would not result in a violation but may result in customer complaints). SOCs= Synthetic Organic Compounds THMs = Trihalomethanes TT = Treatment Technique (a required process intended to reduce the level of a contaminant in drinking water) µS/cm = microSiemens per centimeter (unit of measurement for conductivity, which is the reciprocal of the unit of resistance, the ohm) UV = Ultraviolet VOCs = Volatile Organic Compounds For calculations purpose, zeros were used for any result below MRL values. Information in red represents data for calendar year 2022 2024 Data Clearwell Clearwell Clearwell Clearwell Date Last LCWTP Clearwell Utah MCL Utah MCLG Range Average Minimum Maximum Sampled Primary Contaminants - Inorganic Antimony, ppb 6 6 N/A <1.00 <1.00 <1.00 12/3/2024 Arsenic, ppb 10 0 N/A <1.00 <1.00 <1.00 12/3/2024 Asbestos, MFL 7 7 N/A <0.164 <0.164 <0.164 8/16/2021 Barium, ppb 2000 2000 30.78-85.43 63.1 30.8 85.4 12/3/2024 PWS ID: UTAH 18016 Metropolitan Water District of Salt Lake & Sandy 2024 Consumer Confidence Report Page 1 of 8 Calendar Year 2024 CCR data for LCWTP Clearwell 2024 Data Clearwell Clearwell Clearwell Clearwell Date Last LCWTP Clearwell Utah MCL Utah MCLG Range Average Minimum Maximum Sampled Beryllium, ppb 4 4 N/A <1.00 <1.00 <1.00 12/3/2024 Cadmium, ppb 5 5 N/A <1.00 <1.00 <1.00 12/3/2024 Chromium, ppb 100 100 <1.00-2.6 <1.00 <1.00 2.57 12/3/2024 Cyanide (as free Cyanide), ppm 0.2 0.2 N/A <0.016 <0.016 <0.016 10/5/2021 Fluoride, ppm 4 4 0.151-0.854 0.614 0.151 0.854 12/30/2024 Mercury, ppm 0.002 2 N/A <0.0002 <0.0002 <0.0002 10/5/2021 Nickel, ppb 100 N/A <1.0-1.36 <1.0 <1.0 1.36 12/3/2024 Nitrate, ppm 10 as Nitrogen 10 0.177-0.378 0.290 0.177 0.378 12/3/2024 Nitrite, ppm 1 as Nitrogen 1 <0.03-0.04 <0.03 <0.03 <0.03 12/3/2024 Total Nitrate and Nitrite, ppm 10 as Nitrogen 10 0.177-0.378 0.290 0.177 0.378 12/3/2024 Selenium, ppb 50 50 N/A <1.00 <1.00 <1.00 12/3/2024 Sulfate, ppm 250 N/A 23.6-46.6 37.7 23.6 46.6 12/3/2024 Thallium, ppb 2 0.5 N/A <1.00 <1.00 <1.00 12/3/2024 Total Dissolved Solids, ppm 500 N/A 112-252 217 112 252 12/3/2024 The State allows MWDSLS to monitor for inorganic contaminants less than once per year because the concentrations of these contaminants do not change frequently. Primary Contaminant - Lead and Copper Copper, ppm AL = 1.3 1.3 N/A <0.001 <0.001 <0.001 12/3/2024 Lead, ppm AL = 0.015 0 N/A < 0.001 <0.001 <0.001 12/3/2024 Primary Contaminant - Pesticides, PCBs, and SOCs A sample was collected on April 7, 2023, for Pesticides and all results were undetected. Alachor, aldicarb, aldicarb sulfoxide, aldicarb sulfone, atrazine, carbofuran, cis-Chlorodane (aka alpha-Chlorodane), trans-Chlorodane (aka gamma-Chlorodane) di(2-ethylhexyl)phthalate ((aka bis-(2-ethylhexyl)phthalate)), 2,4-D, heptachlor, heptachlor epoxide, lindane, methoxychlor, PCBs, pentachlorophenol, toxaphene 2,4,5-TP, Benzo(a)pyrene, dalapon, Di(2-ethylhexyl)adipate, dinoseb, endrin, hexachlorobenzene, hexachlorocyclopentadiene, oxamyl, picloram, simazine. The State allows MWDSLS to monitor for Pesticides, PCBs, and SOCs contaminants less than once per year because the concentrations of these contaminants do not change frequently. Primary Contaminant - VOCs A sample was collected on February 13, 2023, for VOCs and all results were undetected. Vinyl chloride, benzene, carbon tetrachloride, 1,2-dichloroethane, trichloroethene (aka trichloroethylene), 1,4-dichlorobenzene (aka para-dichlorobenzene), 1,1-dichloroethene (aka 1,1-dichloroethylene), 1,1,1-trichloroethane, cis-1,2-dichloroethene (aka cis-1,2-dichloroethylene), 1,2-dichloropropane, ethylbenzene, monochlorobenzene (aka chlorobenzene) 1,2-dichlorobenzene (aka o-dichlorobenzene), styrene, tetrachloroethene (aka tetrachloroethylene), toluene, trans-1,2-dichloroethylene (aka trans-1,2-dichloroethene) xylenes (total), dichloromethane (aka methylene chloride), 1,2,4-trichlorobenzene, and 1,1,2-trichloroethane The State allows MWDSLS to monitor for VOCs contaminants less than once per year because the concentrations of these contaminants do not change frequently. Primary Organic Contaminants - Disinfection-By-Products (MCL is based on the annual average) Total THMs, ppb 80 N/A 15.3-43.2 26.6 15.3 43.2 10/2/2024 Bromate, ppb 10 0 N/A <8.00 <8.00 <8.00 12/3/2024 Total HAA5, ppb 60 N/A 10.5-21.1 14.5 10.5 21.1 10/2/2024 THMs, HAA5, and HAA6 are collected quarterly as of May 19, 2014. HAA6 are not required to be reported and are not included in the CCR Primary Inorganic Contaminants - Man Made Radionuclides Combined Radium-226 and Radium-228, pCi/L 5 0 N/A 0.12 0.12 0.12 8/12/2021 Page 2 of 8 Calendar Year 2024 CCR data for LCWTP Clearwell 2024 Data Clearwell Clearwell Clearwell Clearwell Date Last LCWTP Clearwell Utah MCL Utah MCLG Range Average Minimum Maximum Sampled Gross alpha activity, pCi/L 15 0 N/A 1.5 1.5 1.5 8/12/2021 Gross Beta activity, pCi/L N/A N/A N/A 1.8 1.8 1.8 8/12/2021 The State allows MWDSLS to monitor for Radionuclide contaminants less than once per year because the concentrations of these contaminants do not change frequently. Primary Inorganic Contaminants - POE Turbidity, NTU 0.3* 0 0.012-0.141 0.020 0.012 0.141 12/30/2024 Chlorine residual, mg/L 4 4 0.44-1.09 0.92 0.44 1.09 12/30/2024 * For a conventional filtration plant, the turbidity level of representative samples of a system's combined filter effluent water shall be less than or equal to 0.3 NTU in at least 95% of the measurements taken each month. Primary Contaminants - Microbiological Total coliform, colonies/100 mL ≤ 5% 0 N/A 0.00% 0.00% 0.00%12/30/2024 Total number of E. coli positive samples 0 0 N/A 0.00% 0.00% 0.00%12/30/2024 Chlorine residuals for bacteria samples including distribution system, mg/L 4 4 0.02-1.25 0.84 0.02 1.25 12/30/2024 Secondary Contaminants - Inorganic & Metals (SMCL) Aluminum, ppb 200 N/A <1.00-3.5 1.2 <1.00 3.50 12/3/2024 Chloride, mg/L 250 N/A 12.5-54.5 30.7 12.5 54.5 12/3/2024 Iron, ppb 300 N/A <1.00-7.6 3 <1.00 8 12/3/2024 Manganese, ppb 50 N/A <1.00-2.5 <1.00 <1.00 2.48 12/3/2024 Molybdenum,ppb N/A N/A 1.32-3.88 2.28 1.32 3.88 12/3/2024 pH 6.5-8.5 N/A 7.53-8.07 7.81 7.53 8.07 12/3/2024 Sodium, ppm N/A N/A N/A 18.2 18.2 18.2 12/6/2021 Vanadium, ppb N/A N/A N/A <1.00 <1.00 <1.0 12/3/2024 Zinc, ppb 5000 N/A <1.00-2.82 <1.00 <1.00 2.82 12/3/2024 These zinc results do not include January - March 2024 b Nonregulated Contaminants - Inorganic Alkalinity, Total, mg/L as CaCO3 N/A N/A 55.2-115 99 55.2 115 12/3/2024 Calcium hardness, mg/L as CaCO3 N/A N/A 66-152 111 66 152 12/3/2024 Total Hardness, mg/L as CaCO3 N/A N/A 78-166 144 78 166 12/3/2024 Phosphate, mg/L N/A N/A N/A <0.05 <0.05 0.1 12/3/2024 Conductivity, µS/cm N/A N/A 215-490 386 215 490 12/3/2024 Bromide, ppb N/A N/A <8.00-12.9 <8.00 <8.00 12.9 12/3/2024 Regulated - Organics A sample was collected on February 13, 2023, for regulated organics and all results were undetected. 1,1,1,2-tetrachloroethane, 1,1,2,2-tetrachloroethane, 1,1-dichloroethane, 1,1-dichloropropene, 1,2,3-trichloropropane, cis-1,3-dichloropropene, trans-1,3-dichloropropene 1,3-dichloropropane, 2,2-dichloropropane, bromobenzene, bromoform, bromomethane, chloroethane, dibromomethane, hexachlorobutadiene, 1,3-dichlorobenzene 3-hydroxycarbofuran, carbaryl, dicamba, and methomyl. Unregulated - Organics A sample was collected on February 13, 2023, for unregulated organics and all results were undetected. Aldrin, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, bromochloromethane, dichlorodifluoromethane, isopropylbenzene, naphthalene, n-butylbenzene, sec-butylbenzene tert-butylbenzene, fluorotrichloromethane, and MTBE. Page 3 of 8 Calendar Year 2024 CCR data for LCWTP Clearwell 2024 Data Clearwell Clearwell Clearwell Clearwell Date Last LCWTP Clearwell Utah MCL Utah MCLG Range Average Minimum Maximum Sampled The State allows MWDSLS to monitor for Unregulated Organics contaminants less than once per year because the concentrations of these contaminants do not change frequently. TOC, DOC & UV-254 TOC, mg/L TT TT 0.74-2.44 1.82 0.74 2.44 12/30/2024 DOC, mg/L TT TT 0.74-2.8 1.84 0.74 2.80 12/30/2024 UV-254, cm-1 TT TT 0.011-0.036 0.025 0.011 0.036 12/30/2024 Source Water Monitoring Crypto (combined Little Cottonwood Creek & Deer Creek Reservoir), Oocysts/L N/A N/A N/A 0.00 0.00 0.00 3/3/2023 Page 4 of 8 Calendar Year 2024 CCR data for LCWTP Clearwell Page 5 of 8 Calendar Year 2024 CCR data for LCWTP Clearwell Page 6 of 8 Calendar Year 2024 CCR data for LCWTP Clearwell These zinc results do not include January - March 2024 because they failed QCs Page 7 of 8 Calendar Year 2024 CCR data for LCWTP Clearwell Page 8 of 8 Calendar Year 2024 CCR data for LCWTP Clearwell