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Middleton Water Utility 2014 Water Quality Report We’re pleased to present this year’s City of Middleton Water Quality Report. This report is designed to inform you about the quality of water we deliver to you every day. Our constant goal is to provide you with a safe and dependable supply of drinking water. We want you to understand the efforts we make to continually improve the water treatment process and protect our water resources. We are committed to ensuring the quality of your water. Source of Water Middleton draws its water from six sandstone wells, ranging in depth from 330 feet to 856 feet. These wells penetrate the Franconia, Galesville, Eau Claire and Mount Simon formations. The City has provided the Wisconsin Department of Natural Resources with inventory data on these wells which was used to prepare a source water assessment plan. This report shows our water quality and what it means If you have any questions with this report, please contact the Middleton Water Utility at (608) 821-8370, Monday-Friday 7:30-4:00. We want our valued customers to be informed about their water utility. If you want to learn more, please attend any of our regularly scheduled meetings. They are held at the City of Middleton, 7426 Hubbard Avenue at 6:30 pm on the 2nd and 4th Mondays of each month. Copies of this report are available in English or Spanish at City Hall, or on the City’s Web Site at cityofmiddleton.us. Copias de este informe están disponibles en Español en las oficinas de la ciudad, o en el sitio Web cityofmiddleton.us. The Middleton Water Utility routinely monitors for constituents in our drinking water according to Federal and State laws. The table shows the most recent results of our monitoring. Wellhead Protection The City of Middleton has adopted a Wellhead Protection Plan and Ordinance. The purpose of these land use controls is to help protect the source of our drinking water. Copies of the plan are available for inspection at City Hall. Cross Connection Control Program Overview What Is a Cross Connection? A cross connection is a direct or potential connection between any part of the public water supply system and a source of contamination or pollution. The most common form of cross connection is a garden hose, which is easily connected to the public water supply system and can be used to apply a variety of potentially dangerous substances, including chemicals and fertilizer. Other common cross connections include dishwashers, toilets, pressure washers, boilers, pools, and lawn sprinkler systems. In order to reduce overall costs for compliance with DNR Regulation NR810.15, the City of Middleton Water Utility will be implementing a comprehensive cross connection survey program. There is no cost for the survey and each on-site survey takes less than 45 minutes on average for a business and less than 15 minutes for a home survey when conducted at the time of new water meter installation. ---PAGE BREAK--- The City will send postal notices and begin to perform the initial surveys of residential, commercial, industrial buildings throughout the community to detect actual & potential cross connections and make recommendations for the installation of backflow prevention devices or assemblies where necessary. This will help ensure that contaminated or polluted water cannot backflow into clean drinking water. Test Results Definition of Terms Term Definition AL Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow. MCL Maximum Contaminant Level: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the 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. allow for a margin of safety. nd No detect pCi/l picocuries per liter (a measure of radioactivity) ppm parts per million, or milligrams per liter (mg/l) ppb parts per billion, or micrograms per liter (ug/l) TCR Total Coliform Rule Number of Contaminants Required to be Tested This includes all contaminants that were required to be tested in the last 5 years. Contaminant Group # of Contaminants Disinfection Byproducts 11 Inorganic Contaminants 15 Microbiological Contaminants 3 Radioactive Contaminants 2 Organic Contaminants including Pesticides and Herbicides 2 Unregulated Contaminants 21 Volatile Organic Contaminants 41 Inorganic Contaminants Contaminant (units) MCL MCLG Level Found Range Sample Date (if prior to 2014) Violation Typical Source of Contaminant ARSENIC (ppb) 10 n/a 1 0 - 1 NO Erosion of natural deposits; Runoff from orchards; Runoff from glass and electronics production wastes BARIUM (ppm) 2 2 .070 .004-.070 NO Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits CHROMIUM (ppb) 100 100 1 0 - 1 NO Discharge from steel and pulp mills; Erosion of natural deposits COPPER (ppm) AL=1.3 1.3 .17 0 of 31 results were above the action level NO Corrosion of household plumbing systems; Erosion of natural deposits; Leaching from wood preservatives ---PAGE BREAK--- TEST RESULTS Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. Middleton Waterworks is 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 your 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 or at www.epa.gov/safewater/lead. Infants and children who drink water containing lead in excess of the action level could experience delays in their physical or mental development. Children could show slight deficits in attention span and learning abilities. Adults who drink this water over many years could develop kidney problems or high blood pressure FLUORIDE (ppm) 4 4 1.0 .1 - 1.0 NO Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories LEAD (ppb) AL=15 0 4.00 1 of 31 results were above the action level. NO Corrosion of household plumbing systems; Erosion of natural deposits NICKEL (ppb) 100 2.9000 0.77000- 2.9000 NO Nickel occurs naturally in soils, groundwater and surface waters and is often used in electroplating, stainless steel and alloy products. NITRATE (N03-N) (ppm) 10 10 4.90 0.00-4.90 NO Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits SODIUM (ppm) n/a n/a 69.00 2.80-69.00 NO n/a NITRITE (NO2-N) (ppm) 1 1 .008 0.0-.008 NO Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits THALLIUM TOTAL (ppb) 2 0.5 .3 0.0- .3 NO Leaching from ore-processing sites; Discharge from electronics, glass, and drug factories Volatile Organic Contaminants Contaminant (units) MCL MCLG Level Found Range Sample Date (if prior to 2014) Violation Typical Source of Contaminant (ppb) 700 700 0.0 NO Discharge from Petroleum Refineries Radioactive Contaminants Contaminant (units) MCL MCLG Level Found Range Sample Date (if prior to 2014) Violation Typical Source of Contaminant Grosse Beta Particle Activity (pCi/l) n/a n/a 1.8 1.8 03/22/2011 NO Decay of natural and man- made deposits. MCL units are in millirem/year. Calculation ---PAGE BREAK--- Explanation of Test Results We’re proud that your drinking water meets or exceeds all Federal and State requirements. We have learned through our monitoring and testing that some constituents have been detected. The EPA has determined that your water IS SAFE at these levels. All sources of drinking water are subject to potential contamination by constituents that are naturally occurring or man made. Those constituents can be microbes, organic or inorganic chemicals, or radioactive materials. All 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 the water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency’s Safe Drinking Water Hotline at 1-[PHONE REDACTED]. MCL’s are set at very stringent levels. To understand the possible health effects described for many regulated constituents, a person would have to drink 2 liters of water every day at the MCL level for a lifetime to have a one-in-a million chance of having the described health effect. Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno- compromised 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 and other microbiological contaminants are available from the Safe Drinking Water Hotline 1-[PHONE REDACTED]. Please call the Middleton Water Utility at (608) 821-8370 if you have any questions. for compliance with MCL is not possible unless level found is greater than 50 pCi/l. RADIUM, (226+228)(pCi/l) 5 0 4.6 0.8- 4.6 NO Erosion of natural deposits Combined Uranium (ug/l) 30 0 1.5 0 - 1.5 03/04/2008 NO Erosion of natural deposits Gross Alpha, Incl. R&U (n/a) n/a n/a 5.6 0- 5.6 NO Erosion of natural deposits Disinfection Byproducts Contaminant (units) MCL MCLG Level Found Range Sample Date (if prior to 2014) Violation Typical Source of Contaminant TTHM (ppb) 80 0 15.0 4.0-15.0 NO By-product of drinking water chlorination HAA5(ppb) 60 60 4 0-4 NO By-product of drinking water chlorination Unregulated Contaminants Contaminant (units) MCL MCLG Level Found Range Sample Date (if prior to 2014) Violation Typical Source of Contaminant HEXAVALENT CHROMIUM (ppb) n/a n/a 1.9 0.0-1.9 NO n/a STRONTIUM (ppb) n/a n/a 79 0.0-79 NO n/a VANADIUM(ppb) n/a n/a .30 0.0-.30 NO n/a CHROMIUM (ppb) n/a n/a 2.0 0.0-2.0 NO n/a SULFATE (ppm) n/a n/a 30.00 0.0-30.00 NO n/a COBALT(ppb) n/a n/a 1.2 0.0-1.2 NO n/a