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HomeMy WebLinkAboutDDW-2024-013865Annual Drinking Water Quality Report-2020-Monte Verde WaterMountain Green, UtahTO: ALL MONTE VERDE HOMEOWERNERS: We're pleased to present to you this year's Annual Drinking Water Quality Report. This report is designed to inform you about the quality of the water and services 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. The Monte Verde Water customers are fortunate because we enjoy an abundant water supply. Monte Verde Water Association draws water from an entrapped subterranean pool located at about 240 feet below the surface. However, the well extends to 430 feet. The water system was constructed in the mid 1960's to draw from this Underground water supply. The water is pumped to an 80,000 gallon holding tank and is constantly being replenished from various underground sources. The system provides roughly 9 to 12 million gallons of clean drinking water every year. The Certified Water Operator for our system is Nathan Hadley.SOURCE PROTECTION PLAN Monte Verde Water also has a Drinking Water Source Protection Plan and it is available for your review. This plan is a living document and was updated in September 2019 and sent to the state. After several additions and corrections, the revised DWSP was deemed as in compliance and concurrence was issued by State Div of Drinking on 16 Dec 2020. The DWSP contains information about source protection zones, potential contamination sources and management strategies to protect our drinking water. The previous plan showed potential contamination sources common in our protection areas are: Improved and Unimproved Roads, Residential Properties, Residential Septic Systems, Domestic Well and a Christmas Tree Farm. The updated plan made the following changes: Interstate 84 (transportation of hazardous material and road salt application. Added Strawberry Creek (stream/Lake/River). Christmas Tree Farm has been removed as it was sold and the trees were removed. Additionally, our well has a low susceptibility to potential contamination. We have also developed management strategies to further protect our sources form contamination. Please contact us at 876-3479, if you would like to review the Monte Verde Water Association source protection plan or if you have questions or concerns about it. All individual water meters have a backflow prevention device on them. Because of this, all homeowners have been advised to put a hot water safety tank on their hot water heater. This reminder is given annually in our Stockholders meeting.CROSS CONNECTION CONTROL There are many connections to our water distribution system. When connections are properly installed and maintained, the concerns are very minimal. However, unapproved and improper piping changes or connections can adversely affect not only the availability, but also the quality, of the water. A cross connection may let polluted water or even chemicals mingle into the water supply system when not properly protected. This not only compromises the water quality but can also affect your health. So, what can you do? Do not make or allow improper connections at your homes. Even that unprotected garden hose lying in the puddle next to the driveway is a cross connection. The unprotected lawn sprinkler system after you have fertilized or sprayed is also a cross connection. When the cross connection is allowed to exist at your home it will affect you and your family first. If you’d like to learn more about helping to protect the quality of our water, call us for further information about ways you can help.I'm pleased to report that our drinking water meets federal and state requirements.QUESTIONSThis report shows our water quality and what it means to you our customer. If you have any questions about this report or concerning your water utility, please contact Wanda Wilkinson (801)710-7970 or Carolyn Kolan (801)876-3479.PLEASE ATTENDWe 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. Our annual water meetings are held in mid-February of each year. Notifications are delivered to each home prior to the meeting. Other meetings are held on an as needed basis. If you feel a meeting is required to resolve any issues that you may have, please contact one of the board members.Monte Verde Water systemroutinely monitors for constituents in our drinking water in accordance with the Federal and Utah State laws. The following table shows the results of our monitoring for the period of January 1st to December 31st, 2020 or the most recent sample data. All drinking water, including bottled drinking water, may be reasonably expected to contain at least small amounts of some constituents. It's important to remember that the presence of these constituents does not necessarily pose a health risk. CONSTITUENT TABLE DEFINITIONSIn the following table you will find many terms and abbreviations you might not be familiar with. To help you better understand these terms we've provided the following definitions:Non-Detects (ND) - Laboratory analysis indicates that the constituent is not present.ND/Low - High - For water systems that have multiple sources of water, the Utah Division of Drinking Water has given water systems the option of listing the test results of the constituents in one table, instead of multiple tables. To accomplish this, the lowest and highest values detected in the multiple sources are recorded in the same space in the report table. Parts per million (ppm) or Milligrams per liter (mg/l) - One part per million corresponds to one minute in two years or a single penny in $10,000.Parts per billion (ppb) or Micrograms per liter (ug/l) - One part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000. Parts per trillion (ppt) or Nanograms per liter (nanograms/l) - One part per trillion corresponds to one minute in 2,000,000 years, or a single penny in $10,000,000,000.Parts per quadrillion (ppq) or Picograms per liter (picograms/l) - One part per quadrillion corresponds to one minute in 2,000,000,000 years or one penny in $10,000,000,000,000.Picocuries per liter (pCi/L) - Picocuries per liter is a measure of the radioactivity in water.Millirems per year (mrem/yr) - Measure of radiation absorbed by the body.Million Fibers per Liter (MFL) - Million fibers per liter is a measure of the presence of asbestos fibers that are longer than 10 micrometers.Nephelometric Turbidity Unit (NTU) - Nephelometric turbidity unit is a measure of the clarity of water. Turbidity in excess of 5 NTU is just noticeable to the average person.Action Level (AL) - The concentration of a contaminant which, if exceeded, triggers treatment or other Maximum Contaminant Level (MCL) - The “Maximum Allowed” (MCL) is the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.Maximum Contaminant Level Goal (MCLG) - The “Goal”(MCLG) is 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.Date- Because of required sampling time frames i.e. yearly, 3 years, 4 years and 6 years, sampling dates may seem out-dated.Waivers (W)- Because some chemicals are not used or stored in areas around drinking water sources, some water systems have been given waivers that exempt them from having to take certain chemical samples; these waivers are also tied to Drinking Water Source Protection Plans. IPS SECTION: Physical Facility Points.The following Significant Deficiencies have been noted and points assessed to our water system. Deficiency #1 – Rule: R309-515-6(2) For a community water system without naturally flowing water sources (springs or artesian wells), the system must have at least one source of standby power to ensure continuous service when the primary power has been interrupted, a redundant power supply is required. A redundant power supply may include a transfer switch for auxiliary power such as a generator or a power supply service with coverage from two independent substations. Our system does not have a secondary power source.Deficiency # 2 – Rule: R309-515-6(6)(b)vi) requires the permanent well casing to project at least 18 inches above the final ground surface and 12 inches above the pump house floor; at sites subject to flooding, the top of the casing must terminate at least 3 feet above the 100-year flood level or highest know flood elevation, whichever is higher. Our well casing terminates less than 12 inches above floor or less than 18 inches above ground surface.Deficiency #3 – Rule: R309-515-6(12)(d)(ix) requires the pump-to-waste line connected to a sewer/storm drain to have a minimum 12-inch clearance to the floor rim.NOTICE: All of the above deficiencies have been corrected and approval has been issued from the State. Our systems is in compliance and does not have any deficiencies.TOTAL COLIFORM wasnot present in our monthly routine water sample tests during the year of 2020. CONSTITUENT TABLE - TEST RESULTS CONTAMINANT VIOL. Y/N LEVEL DETECTED UNIT MEAS. MCLG MCL DATE SAMPLED LIKELY SOURCE OF CONTAMINATION MICROBIOLOGICAL CONTAMINANTS Total Coliform Bacteria N N/A 0 **See Below Monthly 2020 Naturally present in the environment **Not present Fecal coliform and E.coli N N/A 0 **See Below Monthly 2020 Human and animal fecal waste **If a routine sample and repeat sample are total coliform positive, and one is also fecal coliform or E. coli positive Turbidity for Ground Water N 0.02 NTU N/A 5 2020 Soil Runoff NITRATE Nitrate(IC0, Mg/L Violation Y/N Result/Qualifier MRL Method N 2.800 0.200 EPA 300.0 2020 VOLATILE ORGANIC CONTAMINANTS Violation Y/N Level Detected ND/Low- High Unit Measure- Ment MCL MRL 2020 Likely source of Contamination Benzene N ND ug/L 5 0.5 2020 Discharge from factories: Leaching from gas storage tanks and landfills Carbon Tetrachloride N ND ug/L 5 1.0 2020 Discharge from chemical plants and other industrial activities Chlorobenzene N ND Ug/L 100 0.5 2020 Discharge from chemical and agricultural chemical factories Dibromomethane N ND Ug/L 5 1.0 2020 1,2-Dichlorobenzene N ND Ug/L 600 0.5 2020 Discharge from industrial chemical factories 1,4-Dichlorobenzene N ND Ug/L 75 0.5 2020 Discharge from industrial chemical factories Cis-1,2 Dichloroethlene N ND Ug/L 70 1.0 2020 Discharge from industrial chemical factories Trans-1,2-Dischloroethene N ND Ug/L 100 0.5 2020 Discharge from industrial chemical factories 1,2-Dichloroethane N ND Ug/L 5 0.5 2020 Discharge from pharmaceutical and chemical factories 1,1-Dichlorethene N ND Ug/L 7 0.5 2020 1,2-Dichloropropane N ND Ug/L 5 0.5 2020 Discharge from industrial chemical factories Ethyl Benzene N ND Ug/L 700 0.5 2020 Discharge from petroleum refineries Styrene N ND Ug/L 100 0.5 2020 Discharge from rubber and plastic factories: leaching from landfills Tetrachloroethene N ND Ug/L 5 0.5 2020 Discharge from factories and dry cleaners 1,2,4-Trichlorobenzene N ND Ug/L 70 0.5 2020 Discharge from textile finishing factories 1,1,1-Trichloroethane N ND Ug/L 200 0.5 2020 Discharege from metal degreasing sites and other factories 1,1,2-Trichloroetane N ND Ug/L 5 0.5 2020 Discharge from industrial chemical factories Tichloroethene N ND Ug/L 5 0.5 2020 Discharge from metal degreasing sites and other factories Toluene N ND Ug/L 1000 0.5 2020 Discharge from petroleum factories Vinyl Chloride N ND Ug/L 2 0.5 2020 Leaching from PVC piping discharge from plastic factories Methylene Chloride N ND Ug/L 5 1.0 2020 Xylenes, total N ND Ug/L 1000 0.5 2020 Discharge from petroleum factories; discharge from chemical factories LEAD/COPPER Lead a. 90% results b. # of sites that exceed the AL N 2.242 Ug/L AL=15 2019 Corrosion of household plumbing systems, erosion of natural deposits Copper N 50 Ug/L AL=1300 2019 Corrosion of household plumbing systems, erosion of natural deposits Asbestos Asbestos N ND MFL 0.16 2013 RADIOLOGICAL CONTAMINANTS Alpha emitters N pCi/1 1 15 2019 Erosion of natural deposits Combined radium (226,228) N pCi/1 .39 5 2019 Erosion of natural deposits SYNTHETIC ORGANIC CONTAMINANTS INCLUDING PESTICIDES AND HERBICIDES Carbamates Violation Y/N Level Detected ND/Low-High Unit Measure-ment MRL MCL Date sampled 3-Hydroxycarbofuran N ND Ug/L 1.0 2019 Aldicarb N ND Ug/L 1.0 2019 Carbaryl N ND Ug/L 1.0 2019 Carbofuran N ND Ug/L 1.0 40 2019 Methomyl N ND Ug/L 1.0 2019 Oxamyl N ND Ug/L 1.0 200 2019 Herbicides Violation Y/N Level Detected ND/Low-High Unit Measure-ment MRL MCL 2,4-D N ND Ug/L 0.220 70 2019 Runoff from herbicide used on row crops 2,4,5-TP(Silvex N ND Ug/L 0.440 50 2019 Residue of banned herbicide Alachlor N ND Ug/L 0.44 2 2019 Runoff from herbicide used on row crops Atazine N ND Ug/L 0.22 3 2019 Runoff from herbicide used on row crops Benzo(a)prene N ND Ug/L 0.04 .02 2019 Leaching from linings of water storage tanks and distribution lines Carbofuran N ND Ug/L 1.0 40 2019 Leaching of soil fumigant used on rice and alfalfa Chlordane Total N ND Ug/L 0.44 2 2019 Residue of banned termiticide Dalapon N ND Ug/L 2.20 200 2019 Runoff from herbicide used on rights of way Dinoseb N ND Ug/L 7 0.440 2019 Runoff from herbicide used on soybeans and vegetables Endrin N ND Ug/L 0.022 2 2019 Residue of banned insecticide Heptachlor N ND Ug/L 0.088 0.4 2019 Residue of banned termiticide Heptachlor epoxide N ND Ug/L 0.2 0.044 2019 Breakdown of heptachlor Hexachlorobenzene N ND Ug/L 0.22 1 2019 Discharge from metal refineries and agricultural chemical factories Hexachlorocyclo- pentadiene N ND Ug/L 0.22 50 2019 Discharge from chemical factories Lindane N ND Ug/L 0.044 0.2 2019 Runoff/leaching from insecticide used on cattle, lumber, gardens Methoxychlor N ND Ug/L 0.22 40 2019 Runoff/leaching from insecticide used on fruits, vegetables, alfalfa, livestock Oxamyl [Vydate] N ND Ug/L 1 200 2019 Runoff/leaching from insecticide used on apples, potatoes and tomatoes PCBs [Polychlorinated biphenyls] N ND Ug/L 0.50 0.5 2019 Runoff from landfills; discharge of waste chemicals Pentachlorophenol N ND Ug/L 1.088 1 2019 Discharge from wood preserving factories Picloram N ND Ug/L 0.220 500 2019 Herbicide runoff Simazine N ND Ug/L 0.15 4 2019 Herbicide runoff Toxaphene N ND Ug/L 2.2 3 2019 Runoff/leaching from insecticide used on cotton and cattle INORGANIC CONTAMINANTS Antimony N ND mg/L 6 6 2017 Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder Arsenic N 0.0008 mg/L N/A 50 2017 Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes Barium N 0.270 mg/L 2000 2000 2017 Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits Beryllium N ND mg/L 4 4 2017 Discharge from metal refineries and coal-burning factories; discharge from electrical, aerospace and defense industries Cadmium N ND mg/L 5 5 2017 Corrosion of galvanized pipes; erosion of natural deposits; discharge from metal refineries; runoff from waste batteries and paints Chromium N ND mg/L 100 100 2017 Discharge from steel and pulp mills/ erosion of natural deposits Cyanide N ND mg/L 200 200 2017 Discharge from steel/metal factories; discharge from plastic and fertilizer factories Fluoride, IC N 0.2 mg/L 4000 4000 2017 Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories Mercury (inorganic) N ND mg/L 2 2 2017 Erosion of natural deposits; discharge from refineries and factories; runoff from landfills, runoff from cropland Selenium N 0.0009 mg/L 50 50000 2017 Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines Sodium N 35.9 mg/L None set by EPA None set by EPA 2017 Erosion of natural deposits; discharge from refineries and factories; runoff from landfills Sulfate, IC N 32 mg/L l 500 500 2017 Erosion of natural deposit; discharge from refineries and factories; runoff from landfills Thallium N ND mg/L 1 2 2017 Leaching from ore processing sites; discharge from electronics, glass, and drug factories TDS (Total Dissolved Solids) N 488 Ug/L 1000 1000 2017 Erosion of natural deposits, MICROBIOLOGICAL CONTAMINANTS: Total Coliform. Coliforms are bacteria that are naturally present in the environment and are used as an indicator that other; potentially-harmful, bacteria may be present. Coliforms were found in more samples than allowed and this was a warning of potential problems. Fecal coliform/E.Coli. Fecal coliforms and E. coli are bacteria whose presence indicates that the water may be contaminated with human or animal wastes. Microbes in these wastes can cause short-term effects, such as diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a special health risk for infants, young children, and people with severely compromised immune systems. Turbidity. 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 organisms. These organisms include bacteria, viruses, and parasites that can cause symptoms such as nausea, cramps, diarrhea, and associated headaches. RADIOACTIVE CONTAMINANTS: Alpha emitters. Certain minerals are radioactive and may emit a form of radiation known as alpha radiation. Some people who drink water containing alpha emitters in excess of the MCL over many years may have an increased risk of getting cancer. Beta emitters. Certain minerals are radioactive and may emit a form of radiation known as beta radiation. Some people who drink water containing beta emitters in excess of the MCL over many years may have an increased risk of getting cancer. Combined Radium 226/228. Some people who drink water containing radium 226 or 228 in excess of the MCL over many years may have an increased risk of getting cancer. INORGANIC CONTAMINANTS: Antimony. Some people who drink water containing antimony well in excess of the MCL over many years could experience increases in blood cholesterol and decreases in blood sugar. Arsenic. Some people who drink water containing arsenic in excess of the MCL over many years could experience skin damage or problems with their circulatory system, and may have an increased risk of getting cancer. Asbestos. Some people who drink water containing asbestos in excess of the MCL over many years may have an increased risk of developing benign intestinal polyps. Barium. Some people who drink water containing barium in excess of the MCL over many years could experience an increase in their blood pressure. Beryllium. Some people who drink water containing beryllium well in excess of the MCL over many years could develop intestinal lesions. Cadmium. Some people who drink water containing cadmium in excess of the MCL over many years could experience kidney damage. Carbon, Total Organic (TOC). Carbon, Total Organic (TOC) has no health effects. However, total organic carbon provides a medium for the formation of disinfection by products. These byproducts include trihalomethanes (THMs) and halo acetic 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. Chromium. Some people who use water containing chromium well in excess of the MCL over many years could experience allergic dermatitis. Copper. Copper is an essential nutrient, but some people who drink water containing copper in excess of the action level over a relatively short amount of time could experience gastrointestinal distress. Some people who drink water containing copper in excess of the action level over many years could suffer liver or kidney damage. People with Wilson's disease should consult their personal doctor. Cyanide. Some people who drink water containing cyanide well in excess of the MCL over many years could experience nerve damage or problems with their thyroid. Fluoride. Some people who drink water containing fluoride in excess of the MCL over many years could get bone disease, including pain and tenderness of the bones. Children may get mottled teeth. 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. Mercury (inorganic). Some people who drink water containing inorganic mercury well in excess of the MCL over many years could experience kidney damage. Nitrate. Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. Nitrite. Infants below the age of six months who drink water containing nitrite in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. Selenium. Selenium is an essential nutrient. However, some people who drink water containing selenium in excess of the MCL over many years could experience hair or fingernail losses, numbness in fingers or toes, or problems with their circulation. Sodium. Sodium is an essential nutrient. However, some people who drink water containing sodium in excess of the MCL may experience health problems. Sulfate. High levels of sulfates in the drinking water may cause some people to have stomach problems. Thallium. Some people who drink water containing thallium in excess of the MCL over many years could experience hair loss, changes in their blood, or problems with their kidneys, intestines, or liver. TDS (Total Dissolved Solids). TDS is an aesthetic water quality problem; however high levels may cause some people to experience health problems. period of time could experience stomach problems, and may have an increased risk of getting cancer. Ethylene dibromide. Some people who drink water containing ethylene dibromide in excess of the MCL over many years could experience problems with their liver, stomach, reproductive system, or kidneys, and may have an increased risk of getting cancer. Glyphosate. Some people who drink water containing glyphosate in excess of the MCL over many years could experience problems with their kidneys or reproductive difficulties. Heptachlor. Some people who drink water containing heptachlor in excess of the MCL over many years could experience liver damage and may have an increased risk of getting cancer. Heptachlor epoxide. Some people who drink water containing heptachlor epoxide in excess of the MCL over many years could experience liver damage, and may have an increased risk of getting cancer. Hexachlorobenzene. Some people who drink water containing hexachlorobenzene in excess of the MCL over many years could experience problems with their liver or kidneys, or adverse reproductive effects, and may have an increased risk of getting cancer. Hexachlorocyclopentadiene. Some people who drink water containing hexachlorocyclopentadiene well in excess of the MCL over many years could experience problems with their kidneys or stomach. Lindane. Some people who drink water containing lindane in excess of the MCL over many years could experience problems with their kidneys or liver. Methoxychlor. Some people who drink water containing methoxychlor in excess of the MCL over many years could experience reproductive difficulties. Oxamyl [Vydate]. Some people who drink water containing oxamyl in excess of the MCL over many years could experience slight nervous system effects. PCBs [Polychlorinated biphenyls]. Some people who drink water containing PCBs in excess of the MCL over many years could experience changes in their skin, problems with their thymus gland, immune deficiencies, or reproductive or nervous system difficulties, and may have an increased risk of getting cancer. Pentachlorophenol. Some people who drink water containing pentachlorophenol in excess of the MCL over many years could experience problems with their liver or kidneys, and may have an increased risk of getting cancer. Picloram. Some people who drink water containing picloram in excess of the MCL over many years could experience problems with their liver. Simazine. Some people who drink water containing simazine in excess of the MCL over many years could experience problems with their blood. Toxaphene. Some people who drink water containing toxaphene in excess of the MCL over many years could have problems with their kidneys, liver, or thyroid, and may have an increased risk of getting cancer. VOLATILE ORGANIC CONTAMINANTS: Benzene. Some people who drink water containing benzene in excess of the MCL over many years could experience anemia or a decrease in blood platelets, and may have an increased risk of getting cancer. Carbon Tetrachloride. Some people who drink water containing carbon tetrachloride in excess of the MCL over many years could experience problems with their liver and may have an increased risk of getting cancer. Chlorobenzene. Some people who drink water containing chlorobenzene in excess of the MCL over many years could experience problems with their liver or kidneys. o-Dichlorobenzene. Some people who drink water containing o-dichlorobenzene well in excess of the MCL over many years could experience problems with their liver, kidneys, or circulatory systems. p-Dichlorobenzene. Some people who drink water containing p-dichlorobenzene in excess of the MCL over many years could experience anemia, damage to their liver, kidneys, or spleen, or changes in their blood. 1,2-Dichloroethane. Some people who drink water containing 1,2-dichloroethane in excess of the MCL over many years may have an increased risk of getting cancer. 1,1-Dichloroethylene. Some people who drink water containing 1,1-dichloroethylene in excess of the MCL over many years could experience problems with their liver. cis-1,2-Dichloroethylene. Some people who drink water containing cis-1,2-dichloroethylene in excess of the MCL over many years could experience problems with their liver. trans-1,2-Dicholoroethylene. Some people who drink water containing trans-1,2-dichloroethylene well in excess of the MCL over many years could experience problems with their liver. Dichloromethane. Some people who drink water containing dichloromethane in excess of the MCL over many years could have liver problems and may have an increased risk of getting cancer. 1,2-Dichloropropane. Some people who drink water containing 1,2-dichloropropane in excess of the MCL over many years may have an increased risk of getting cancer. Ethylbenzene. Some people who drink water containing ethylbenzene well in excess of the MCL over many years could experience problems with their liver or kidneys. Styrene. Some people who drink water containing styrene well in excess of the MCL over many years could have problems with their liver, kidneys, or circulatory system. Tetrachloroethylene. Some people who drink water containing tetrachloroethylene in excess of the MCL over many years could have problems with their liver, and may have an increased risk of getting cancer. 1,2,4-Trichlorobenzene. Some people who drink water containing 1,2,4-trichlorobenzene well in excess of the MCL over many years could experience changes in their adrenal glands. 1,1,1,-Trichloroethane. Some people who drink water containing 1,1,1-trichloroethane in excess of the MCL over many years could experience problems with their liver, nervous system, or circulatory system. 1,1,2-Trichloroethane. Some people who drink water containing 1,1,2-trichloroethane well in excess of the MCL over many years could have problems with their liver, kidneys, or immune systems. Trichloroethylene. Some people who drink water containing trichloroethylene in excess of the MCL over many years could experience problems with their liver and may have an increased risk of getting cancer. TTHMs [Total Trihalomethanes]. Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kidneys, or central nervous systems, and may have an increased risk of getting cancer. Toluene. Some people who drink water containing toluene well in excess of the MCL over many years could have problems with their nervous system, kidneys, or liver. Vinyl Chloride. Some people who drink water containing vinyl chloride in excess of the MCL over many years may have an increased risk of getting cancer. Xylenes. Some people who drink water containing xylenes in excess of the MCL over many years could experience damage to their nervous system.SAFE WATERWe’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.