City Of Blair Annual Water Quality Report For January 1 to December 31, 2022 This report is intended to provide you with important information about your drinking water and the efforts made by the City Of Blair water system to provide safe drinking water. Para Clientes Que Hablan Español: Este informe contiene información muy importante sobre el agua que usted bebe. Tradúzcalo ó hable con alguien que lo entienda bien. For more information regarding this report, or to request a hard copy, contact: AL R SCHOEMAKER 402-426-4191 If you would like to observe the decision-making processes that affect drinking water quality, please attend the regularly scheduled meeting of the Village Board/City Council. If you would like to participate in the process, please contact the Village/City Clerk to arrange to be placed on the agenda of the meeting of the Village Board/City Council. Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contami-nants. 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 EPA's Safe Drinking Water Hotline (800-426-4791). Source Water Assessment Availability: The Nebraska Department of Environment and Energy (NDEE) has completed the Source Water Assessment. Included in the assessment are a Wellhead Protection Area map, potential contaminant source inventory, and source water protection information. To view the Source Water Assessment or for more information please contact the person named above on this report or the NDEE at 402-471-3376 or go to http://dee.ne.gov. In order to ensure that tap water is 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 health. Sources of Drinking Water: The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and groundwater 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. The source of water used by City Of Blair is surface water. Contaminants that may be present in source water include: * Microbial contaminants, such as viruses and bacteria, which 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. * Radioactive contaminants, which can be naturally occurring or be the result of oil and gas production and mining activities. Drinking Water Health Notes: Some people may be more vulnerable to contaminants in drinking water than the general population. Immunocompromised 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 microbial contaminants are available from the Safe Drinking Water Hotline (800-426-4791). 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 components associated with service lines and home plumbing. All Community water systems are 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 you 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 (800-426-4791), at http://www.epa.gov/safewater/lead or at the NDEE Drinking Water Division (402-471-1009). The City Of Blair is required to test for the following contaminants: Coliform Bacteria, Antimony, Arsenic, Asbestos, Barium, Beryllium, Cadmium, Chromium, Copper, Cyanide, Fluoride, Lead, Mercury, Nickel, Nitrate, Nitrite, Selenium, Sodium, Thallium, Alachlor, Atrazine, Benzo(a)pyrene, Carbofuran, Chlordane, Dalapon, Di(2-ethylhexyl)adipate, Dibromochloropropane, Dinoseb, Di(2-ethylhexyl)- phthalate, Diquat, 2,4-D, Endothall, Endrin, Ethylene dibromide, Glyphosate, Heptachlor, Heptachlor epoxide, Hexachlorobenzene, Hexachlorocyclopentadiene, Lindane, Methoxychlor, Oxamyl (Vydate), Pentachlorophenol, Picloram, Polychlorinated biphenyls, Simazine, Toxaphene, Dioxin, Silvex, Benzene, Carbon Tetrachloride, o-Dichloro- benzene, Para-Dichlorobenzene, 1,2-Dichlorethane, 1,1-Dichloroethylene, Cis-1,2,-Dichloroethylene, Trans-1,2-Dichloroethylene, Dichloromethane, 1,2-Dichloropropane, Ethylbenzene, Monochlorobenzene, 1,2,4-Trichloro- benzene, 1,1,1-Trichloroethane, 1,1,2-Trichloroethane, Trichloroethylene, Vinyl Chloride, Styrene, Tetrachloroethylene, Toluene, Xylenes (total), Gross Alpha (minus Uranium & Radium 226), Radium 226 plus Radium 228, Sulfate, Chloroform, Bromodichloromethane, Chlorodibromomethane, Bromoform, Chlorobenzene, m-Dichlorobenzene, 1,1-Dichloropropene, 1,1-Dichloroethane, 1,1,2,2-Tetrachlorethane, 1,2-Dichloropropane, Chloromethane, Bromomethane, 1,2,3-Trichloropropane, 1,1,1,2-Tetra- chloroethane, Chloroethane, 2,2-Dichloropropane, o-Chlorotoluene, p-Chlorotoluene, Bromobenzene, 1,3-Dichloropropene, Aldrin, Butachlor, Carbaryl, Dicamba, Dieldrin, 3-Hydroxycarbofuran, Methomyl, Metolachlor, Metribuzin, Propachlor. How to Read the Water Quality Data Table: The EPA and State Drinking Water Program establish the safe drinking water regulations that limit the amount of contaminants allowed in drinking water. The table shows the concentrations of detected substances in comparison to the regulatory limits. Substances not detected are not included in the table. The state requires monitoring of certain contaminants less than once per year because the concentrations of these contaminants do not change frequently. Therefore, some of this data may be older than one year. MCL (Maximum Contaminant Level) – The highest level of a contami- nant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment 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. MCLGs allow for a margin of safety. AL (Action Level) – The concentration of a contaminant which, if exceeded triggers treatment or other requirements which a water system must follow. MRDL (Maximum Residual Disinfectant Level) – The highest level of a disinfectant allowed in drinking water. N/A – Not applicable. Units in the Table: ND – Not detectable. ppm (parts per million) – One ppm corresponds to 1 gallon of concentrate in 1 million gallons of water. mg/L (milligrams per liter) – Equivalent to ppm. ppb (parts per billion) – One ppb corresponds to 1 gallon of concentrate in 1 billion gallons of water. ug/L (micrograms per liter) – Equivalent to ppb. pCi/L (Picocuries per liter) – Radioactivity concentration unit. RAA (Running Annual Average) – An ongoing annual average calculation of data from the most recent four quarters. LRAA (Locational Running Annual Average) – An ongoing annual average calculation of data from the most recent four quarters at each sampling location. 90th Percentile – Represents the highest value found out of 90% of the samples taken in a representative group. If the 90th percentile is greater than the action level, it will trigger a treatment or other requirements that a water system must follow. TT (Treatment Technique) – A required process intended to reduce the level of a contaminant in drinking water. City Of Blair TEST RESULTS Date Printed: 4/12/2023 NE3117905 Microbiological Highest No. of Positive Samples MCL MCLG Likely Source of Contamination Violations Present COLIFORM (TCR) In the month of November, 1 sample(s) were positive Treatment Technique Trigger 0 Naturally present in the environment Yes Lead and Copper Monitoring Period 90th Percentile Range Unit AL Sites Over AL Likely Source of Contamination COPPER, FREE 2020 - 2022 0.0329 0.00349 - 0.112 ppm 1.3 0 Erosion of natural deposits; Leaching from wood preservatives; Corrosion of household plumbing. LEAD 2020 - 2022 0 0 - 1.29 ppb 15 0 Erosion of natural deposits; Leaching from wood preservatives; Corrosion of household plumbing. Regulated Contaminants Collection Date Highest Value Range Unit MCL MCLG Likely Source of Contamination ATRAZINE 5/23/2022 0.207 0 - 0.207 ppb 3 3 Runoff from herbicide used on row crops BARIUM 7/12/2022 0.0164 0.0164 ppm 2 2 Discharge from drilling wastes; Discharge from metal refineries; Erosion of natural deposits. CARBON, TOTAL 7/12/2022 5.24 2.38 - 5.24 ppm Naturally present in the environment CHROMIUM 7/12/2022 2.18 2.18 ppb 100 100 Discharge from steel and pulp mills; Erosion of natural deposits. FLUORIDE 7/12/2022 0.281 0.281 ppm 4 4 Erosion of natural deposits; water additive which promotes strong teeth; Fertilizer discharge. NITRATE-NITRITE 3/8/2022 0.853 0.853 ppm 10 10 Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits Disinfection Byproducts Monitoring Period Highest RAA Range Unit MCL MCLG Likely Source of Contamination TOTAL HALOACETIC ACIDS (HAA5) 7/1/2021 - 6/30/2022 17.3875 12.2 - 21.3 ppb 60 0 By-product of drinking water disinfection. TTHM 10/1/2021 - 9/30/2022 47.0375 24.1 - 79.1 ppb 80 0 By-product of drinking water disinfection. Radiological Contaminants Collection Date Highest Value Range Unit MCL MCLG Likely Source of Contamination COMBINED RADIUM (-226 & -228) 7/26/2022 0.361 0.361 pCi/L 5 0 Erosion of natural deposits RADIUM-226 7/26/2022 0.361 0.361 pCi/L 0 Erosion of natural deposits. Unregulated Water Quality Data Collection Date Highest Value Range Unit Secondary MCL ALKALINITY, CARBONATE 2/7/2022 212 172 - 212 mg/L SULFATE 7/12/2022 232 232 mg/L 250 During the 2022 calendar year, we had the below noted violation(s) of drinking water regulations. Violation Type Category Analyte Compliance Period FAILURE MAINTAIN MICROBIAL TREAT.(LT2) TT LT2ESWTR 01/01/2022 - 01/31/2022 MONITORING, RT MAJOR (LT2-FILTERED) MON LT2ESWTR 01/01/2022 - 01/31/2022 RES DISINFECT CONCENTRATION (SWTR) TT CHLORAMINE 11/01/2022 - 11/30/2022 MONITORING, RTN/RPT MAJOR (SWTR-FILTER) MON CHLORAMINE 11/01/2022 - 11/30/2022 The City Of Blair has taken the following actions to return to compliance with the Nebraska Safe Drinking Water Act: City of Blair had a Tier II Violation for a Treatment Technique failure in November 2022. The City has moved to manual testing and is in the process of having the outdated monitor replaced with an overall upgrade of the water treatment plant equipment and monitors. Additional Required Health Effects Language: Total organic carbon (TOC) has no health effects. However, total organic carbon provides a medium for the formation of disinfection byproducts. These byproducts include trihalomethanes (THMs) and haloacetic acids (HAAs). Drinking water containing these byproducts in excess of the MCL may lead to adverse health effects, liver or kidney problems, or nervous system effects, and may lead to an increased risk of getting cancer. There are no additional required health effects violation notices. ZNEZ PT 4-18-23
