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HomeMy WebLinkAbout2006 Water Quality Report THE CITY OF x.'M `_ o uLEs EULESS fir` 2006 Annual Water Quality Report - - _-=_ Consumer Confidence Report — -: it.1'• - 4fA L' • Este reporte incluye informacion importante sobre el agua Para ^; �' 4.1k9 ,_, tomar, Si tiene preguntas o'discusiones sobre este reporte en espanol, favor de Ilamar al tel, (817)685-1472 para hablar con una - - persona bilingue en espanol. - Special Notice for the elderly, infants, cancer patients, All drinking water may contain contaminants. people with HIV/AIDS or other immune problems: When drinking water meets federal standards there may not be any Some people may be more vulnerable to contaminants in drinking health based benefits to purchasing bottled water or point of use devices. water than the general population. Immuno-compromised persons such as Drinking water, including bottled water,may reasonably be expected to con- persons with cancer undergoing chemotherapy, persons who have under- tain at least small amounts of some contaminants.The presence of con- gone organ transplants, people with HIV/AIDS or other immune system dis- taminants does not necessarily indicate that the water poses a health risk. orders,some elderly,and infants can be particularly at risk from infections. More information about contaminants and potential health effects can be These people should seek advice about drinking water from their health obtained by calling the EPA's Safe Drinking Water Hotline(800)426-4791. care providers.The EPA/Centers for Disease Control and Prevention (CDC)guidelines on appropriate means to lessen the risk of infection by Secondary Constituents: Cryptosporidium and other microbial contaminants are available from the Many constituents(such as calcium,sodium,or iron)which are often Safe Drinking Water Hotline(1-800-426-4791). found in drinking water can cause taste,color,and odor problems.The taste and odor constituents are called secondary constituents and are regu- Public Participation Opportunities: lated by the State of Texas, not the EPA.These constituents are not causes We encourage public interest and participation in our for health concern.Therefore,secondaries are not required to be reported community's decisions affecting drinking water. Regular City Council meet- in this document but they may greatly affect the appearance and taste of ings take place on the 2nd&4th Tuesdays of the month,at 7 p.m.at 201 your water. N. Ector Dr.The public is welcome. Definitions: Our Drinking Water Meets or Exceeds All Federal (EPA) Maximum Contaminant Level Goal or MCLG:The level of a contami- Drin king Water Requirements nant in drinking water below which there is no known or expected risk to health. This report is a summary of the quality of the water we MCLGs allow for a margin of safety. provide our customers.The analysis was made by using the data from the Maximum Contaminant Level or MCL:The highest permissible level of most recent U.S. Environmental Protection Agency(EPA)required tests a contaminant in drinking water.MCLs are set as close to the MCLGs as feasible and is presented on the opposite site.We hope this helps you become using the best available treatment technology. Maximum Residual Disinfectant Level (MRDL):The highest level of more knowledgeable about what's in your disinfectant allowed in drinking water.There is convincing evidence that addition of drinking water. Listed are all of the federally regulated or monitored contam- a disinfectant is necessary for control of microbial contaminants. inants which have been found in your drinking water.The U.S. EPA Maximum Residual Disinfectant Level Goal(MRDLG):The level of a requires water systems to test for up to 97 contaminants. drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control Water Sources: microbial contamination. The sources of drinking water(both tap water and bottled water) Treatment Technique(TT):A required process intended to reduce the level include rivers, lakes,streams, ponds, reservoirs,springs,and wells.As of a contaminant in drinking water. water travels over the surface of the land or through the ground,it dissolves Action Level(AL):The concentration of a contaminant which,if exceeded, naturally-occurring minerals,and in some cases,radioactive material,and triggers treatment or other requirements a water system must follow. can pick up substances resulting from the presence of animals or from human activity.Contaminants that may be present in source water before Abbreviations treatment include: microbes, inorganic contaminants,pesticides, herbicides, NTU Nephelometric Turbidity Units radioactive contaminants,and organic chemical contaminants. pCi/I Piccocuries Per Liter,a measure of radioactivity Where do we get our drinking water? ppm Parts Per Million or Milligrams Per Liter Our drinking water is obtained from surface and ground water ppb Parts Per Billion or Micrograms Per Liter sources. It is supplied by Trinity River Authority(Cedar Creek and Richland ppt Parts per trillion or Nanograms Per Liter Chambers Lakes)and Euless water wells(Trinity Aquifer).TCEQ complet- ppq Parts Per Quadrillion or Picograms Per Liter ed an assessment of our source water and results indicate that some of our MFL Million Fibers per liter,a measure of asbestos sources are susceptible to certain contaminants.The sampling require- ments for our water system are based on this susceptibility and previous For additional information, call the City of Euless at sample data.Any detection of these contaminants will be found in this (817) 685-1580 or visit www.euless.org/water. report. If we receive or purchase water from another system,their suscepti- bility is not included in this assessment. For more information on source water assessments and protection efforts at our system, please contact us. The City of Euless is a member of the American Water Works Association and the Texas Water Utilities Association. Inorganic Contamina J Year or Range Contaminant Avg.Level Min.Level Max.Level MCL MCLG Measurement Source of Contaminant 2002 Barium 0.055 0.041 0.078 2 2 ppm Discharge of drilling wastes and metal refineries;Erosion of natural deposits. 2002 Chromium 6.7 0 20 100 100 ppb Discharge from steel&pulp mills;Erosion of natural deposits. 2006 2005 Fluoride 0.82 0.1 1.9 4 4 ppm Erosion of natural deposits;water additive which promotes strong teeth;discharge from fertilizer&aluminum factories. 2006 2005 Nitrate 0.27 0 0.5 10 10 ppm Runoff from fertilizer;leaching from septic tanks;sewage; erosion of natural deposits. 2002 Selenium 0.9 0 2.6 50 50 ppb Discharge from petroleum,metal refineries and mines; erosion of natural deposits. Organic Contaminants _ Year or Range I Contaminant Avg.Level Min.Level Max.Level MCL MCLG Measurement Source of Contaminant 2006 2003 Simazine 0.12 0 0.23 4 4 ppb Herbicide runoff. 2006 2003 Atrazine 0.38 0 0.76 3 3 ppb Runoff from herbicide used on row crops. Maximum Residual Disinfectant Level - Year or Range Disinfectant Avg.Level Min.Level Max.Level I MRDL MRDLG Measurement Source of Contaminant 2006 Chloramine Residual 1.36 1.2 1.5 4 4 ppm Disinfectant used to control microbes. Disinfection B products Year or Range Contaminant Avg.Level Min.Level Max.Level MCL Measurement Source of Contaminant 2006 Total Haloacetic Acids 20.8 12.7 34.3 60 ppb Byproduct of drinking water disinfection. 2006 Total Trihalomethanes 36 21.9 57.6 80 ppb Byproduct of drinking water disinfection. Unregulated Contaminants - . imil Bromoform,chloroform,dichlorobromomethane and dibromochloromethane are disinfection products.There is no maximum contaminant level for these chemicals at the entry point to distribution. Year or Range Contaminant Avg.Level Min.Level Max.Level I Measurement Source of Contaminant 2006 2003 Chloroform 9.82 0 29.47 ppb Byproduct of drinking water disinfection. 2006 2003 Bromodichloromethane 5.97 0 17.91 ppb Byproduct of drinking water disinfection. 2006 2003 Dibromochloromethane 2.01 0 6.03 ppb Byproduct of drinking water disinfection. Lead and Copper r Year Contaminant i The 900,Percentile 1 Site#Exceeding Action Level Action Level 1 Measurement Source of Contaminant 2004 Lead 0.8 0 15 ppb Corrosion of household plumbing;erosion of natural deposits. 2004 Copper 0.035 0 1.3 ppm Corrosion of household plumbing;erosion of natural deposits;leaching from wood preservatives. Turbidity r ' Turbidity has no health effects.However,turbidity can interfere with disinfection and provide a medium for microbial growth.Turbidity may indicate the presence of disease-causing orgamisms.These organisms include bacteria,viruses and parasites that can cause symptoms such as nausea,cramps,diarrhea and associated headaches. Year Contaminant Highest Single Measurement Lowest Monthly%of Samples Turbidity Measurement Source of Contaminant Meeting Limits I Limits 2006 Turbidity 0.20 100.00 0.3 NTU soil runoff. Total Coliform Total coliform bacteria are used as indicators of microbial contamination of drinking water because testing for them is easy.While not disease-causing organisms themselves,they are often found in association with other microbes that are capable of causing disease.Coliform bacteria are more hardy than many disease-causing organisms;therefore,their absence from water is a good indication that the water is microbiolo•icall safe for human consum ition. Year Contaminant Highest Monthly%of Positive Samples MCL Measurement Source of Contaminant 2006 Total Coliform Bacteria 2 * Presence Naturally present in the environment. *Presence of coliform bacteria in 5%or more of the monthly samples. Fecal Coliform-REPORTED MONTHLY TESTS FOUND NO FECAL COLIFORM BACTERIA. Secondary and Other Constituents Not Regulated Year I I Constituent ' ' Avg.Level Min.Level Max.Level Secondary Limit Measurement Source of Constituent 2002 Aluminum 0.033 0 0.099 50 ppm Abundant naturally occurring element. 2006 2005 Bicarbonate 256 100 540 N/A ppm Corrosion of carbonate rocks such as limestone. 2002 Calcium 18.2 1.8 50.9 N/A ppm Abundant naturally occurring element. 2006 2005 Carbonate 4 0 11 N/A ppm Corrosion of carbonate rocks such as limestone. 2006 2005 Chloride 60 25 120 300 ppm Abundant naturally occurring element;used in water purification;byproduct of oil field activity. 2002 Copper 0.017 0 0.041 1 ppm Corrosion of household plumbing systems;erosion of natural deposits;leaching from wood preservatives. 2002 Iron 0.013 0 0.022 .3 ppm Erosion of natural deposits;iron or steel water delivery equipment or facilities. 2002 Lead 0.001 0 0.004 N/A ppm Corrosion of household plumbing;erosion of natural deposits. 2002 Magnesium 1.4 0 4.1 N/A ppm Abundant naturally occurring element. 2006 2005 P.Alkalinity as CaCO3 3 0 9 N/A ppm Naturally occurring soluble mineral salts. 2006 2005 pH 7.9 7.6 8.4 7 units Measure of corrosivity of water. 2002 Sodium 229 16 351 N/A ppm Erosion of natural deposits;byproduct of oil field activity. 2006 2005 Sulfate 70 52 95 300 ppm Naturally occurring;common industrial byproduct/byproduct of oil field activity. 2006 2005 Total Alkalinity as CaCO3 216 82 461 N/A ppm Naturally occurring soluble mineral salts. 2006 2005 Total Dissolved Solids 433 216 822 1000 ppm Total dissolved mineral constituents in water. _ 2002 Total Hardness as CaCO3 52 4 144 N/A ppm Naturally occurring calcium.