Marshall’s water comes from ten wells that draw water from the Missouri River alluvium in the
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- Substance MCLG MCL Unit Date Result/ Average Range
- Regulated in the Distribution System
- MRDLG MRDL Unit Date Average Range Major Source
- Regulated at the Customer’s Tap
- Unregulated Contaminants
- Abbreviations: AL - Action level
- MCLG - Maximum contaminant level goal
- MRDLG - Maximum residual disinfection level goal
- NA - Not applicable ND - No detect
- Pesticides and herbicides
- Radioactive contaminants
- Health effects of total trihalomethanes
- Special Notice
- Substance Unit Result/ Average Range Source
- Unregulated Contaminant Monitoring
- Lead and Copper Monitoring
- If the world’s entire water supply could fit in a 1 gallon jug, the fresh water available for use would equal only about one table
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Marshall’s water comes from ten wells that draw water from the Missouri River alluvium in the Malta Bend area. The wells range in depth from 120 to 147 feet. The water quality is very good; however, it does contain calcium and magnesium, which cause “hard” or soap-consuming water. Iron also is present in levels that could cause laundry staining. The first treatment step aerates the water to remove the iron, and the second adds lime to soften the water. Fluoride is added to help prevent dental cavities, and chlorine is added to disinfect and to protect against contamination in the distribution system.
A Department of Natural Resources-conducted source water assessment for the MMU water sys- tem looked at the potential for contamination of MMU’s wells. The assessment shows no known source of contamination within one mile of the well field. A copy of the assessment is available from MMU. Contact the MMU office at 660-886- 6966.
Informe contiene informacion importante sobre la calidad del agua en su communidad. Traduzcalo o hable con alguien que lo entienda bien.
Water Quality Report 2016
be washed.”
African Proverb Board of Public Works members are:
Chuck Hird, President Ken Bryant, Vice President
Steve Mills, Secretary Spencer Fricke, Member
We are pleased to provide you with information on your drinking water supply. We encourage public interest and participation in our community’s decisions affecting your drinking water. Informed customers are our best allies in providing safe and sufficient drinking water. Regular Board of Public Works (BPW) meetings are held at 8:30 a.m. in the MMU office, 75 E. Morgan.
Upcoming dates for 2017 BPW meetings:
April 13 April 27
May 11 June 1
June 15 June 29
July 13
August 3
August 17 August 31
September 14 September 28 October 12 November 2
November 16 November 30 December 14 December 28 Marshall’s water comes from ten wells that draw water from the Missouri River alluvium in the Malta Bend area. The wells range in depth from 120 to 147 feet. The water quality is very good; however, it does contain calcium and magnesium, which cause “hard” or soap- consuming water. Iron also is present in levels that could cause laundry staining. The first treatment step aerates the water to remove the iron, and the second adds lime to soften the water. Fluoride is added to help prevent dental cavities, and chlorine is added to disinfect and to protect against contamination in the distribution system. A Department of Natural Resources- conducted source water assessment for the MMU water sys- tem looked at the potential for contami- nation of MMU’s wells. The assess- ment shows no known source of con- tamination within one mile of the well field. A copy of the assessment is available from MMU. Con- tact the MMU office at 660-886-6966. MMU Office Photo of office to go here Substance MCLG MCL Unit Date Result/ Average Range Major Source Regulated at the Treatment Plant Barium
2 2 ppm 6/11/14 0.0569
NA Erosion of natural deposits. Chromium 100
100 ppb
6/11/14 1.93
NA Erosion of natural deposits Fluoride 4 4 ppm
0.32 0.29 - 0.42 Erosion of natural deposits; water additive which promotes strong teeth. Nitrate + nitrite 10 10
ppm
0.14 NA Erosion of natural deposits. Regulated in the Distribution System Total trihalomethanes NA 80
ppb
By-product of drinking water disinfection. System-wide
81.6 66.3—99.1 Location 1
83.6
81.2 - 85.9 Location 2
87.2
75.6 - 99.1 Location 3
74.6
66.3 - 83.0 Location 4
80.9
68.3 - 98.3 Haloacetic acids NA 60
ppb
By-product of drinking water disinfection. System-wide
34.7 22.6 - 50.5 Location 1
35.7
30.3 - 46.5 Location 2
39.1
32.3 - 50.5 Location 3
33.7
22.6 - 48.9 Location 4
30.3
23.4 - 33.4
MRDL Unit Date Average Range Major Source Chlorine 4 4.0
ppm 1.83
0.61 - 2.92 Water additive used to control microbes. Regulated at the Customer’s Tap
MCL Unit Date 90th Percen- tile Number ex- ceeding the AL Major Source Copper
1.3 AL= 1.3 ppb
0.154
0 Corrosion of household plumbing systems; erosion of natural deposits. Lead
0 AL= 15
ppb
6.67 0 Corrosion of household plumbing systems; erosion of natural deposits.
MCL Unit Date Result/ Average Range
Potassium NA NA
ppm 6/11/14
3.44 NA
Sodium
NA NA
ppm 6/11/14
39.5 NA
Page 2 Water Quality Report 2016 All samples, except chlorine, were analyzed by the Department of Natural Resources’ laboratory or by a certified laboratory under contract to DNR. Chlorine is analyzed onsite by MMU personnel. The following table shows the results of our water-quality analyses. Every regulated contaminant that the laboratories detected in the drinking water, even in the very smallest amounts, is listed. The table lists the name of each substance, the highest level allowed by regulation, the ideal goal for public health, the amount detected (average and range), the possible sources of the substance, and a key to units of measure. Page 3 Water Quality Report 2016 Abbreviations: AL - Action level - The concentration of a contaminant which, if exceeded, triggers treatment or other requirements that 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 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. MCLGs allow for a margin of safety. MRDL - Maximum residual disinfection level - The highest level of a disinfectant allowed in drinking water. There is con- vincing evidence that addition of a disinfectant is necessary for control of microbial contaminants. MRDLG - Maximum residual disinfection level goal - The level of a 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 microbial con- taminants.
methane, bromoform Health Information The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and 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. Contaminants that may be present in source water include:
viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife.
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 also can come from gas stations, urban storm water runoff, and septic systems.
be naturally-occurring or be the result of oil and gas production and mining activities.
In order to ensure that tap water is safe to drink, the Environmental Protection Agency (EPA) prescribes regulations which limit the amount of certain contaminants in water provided by public water systems. Food and Drug Administration (FDA) regulations establish limits for contaminants in bottled water which must provide the same protection for public health.
Drinking water, including bottled water, reasonably may be expected to contain at least small amounts of some contaminants. The presence of contaminants does not indicate that water poses a health risk. More information about contaminants can be obtained by calling EPA’s Safe Drinking Water Hotline (1-800-426- 4791). 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 (Centers for Disease Control) guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline (1-800- 426-4791).
We will be happy to answer any questions about MMU and your water quality. Call Ginny Ismay at 660-886- 6966. For additional information on MMU, please visit our web site at www.mmumo.net. Water quality data for community water systems in the United States is available on the Internet at www.waterdata.com. Page 4 Health effects of total trihalomethanes Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kid- neys, or central nervous system and may have an increased risk of getting cancer. In 2016, MMU had a violation of the following drinking water regulation: Total trihalomethanes (TTHMs) Compliance periods July 1 through September 30 October 1 through December 31 Type of violation — exceeding the MCL for TTHMs
Additional information on the levels of TTHMs found in the Marshall wa- ter supply is on page 2. You can find the full copy of the public notices provided by going to www.mmumo.net/notice.pdf. Special Notice Water Quality Report 2016 Page 4 Water Quality Report 2016 What is Being Done to Reduce Trihalomethane Levels? MMU has undertaken a $5,000,000 project to reduce the level of total triha- lomethanes as well as haloacetic acids. The project includes: Switching to chloramines as the disinfectant used to protect the water qual- ity, Inserting mixers in MMU’s storage facilities in town, Constructing a 500,000 gallon storage facility at the Water Treatment Plant, Replacing the existing pumps used to pump water to town, Inserting baffles in the existing clearwells (in-plant storage), Replacing flow meters at the Water Treatment Plant, Upgrading controls at the Water Treatment Plant, and Constructing a new laboratory and office facility. Construction started in January 2017 and will con- tinue for about a year. Substance Unit Result/ Average Range Source Chlorate ppb 794
298 — 1860 By-product of drinking water disinfection Chromium — total ppb
1.16 0.89 — 1.38
Naturally-occurring element. Used in making steel and other alloys.
Chromium-6 ppb
1.5 1.1 —1.9 Naturally-occurring element. Used in making steel and other alloys. Strontium ppb 121
114 — 134 Naturally-occurring element. Used in manufacturing. Vanadium ppb 1.01
0.81 — 1.32 Naturally-occurring elemental metal. Used in manufacturing
tion is warranted. Contaminant monitoring is part of process used to pro- tect drinking water. Health information is necessary to know whether these contami- nants pose a health risk, but it is often incomplete for un- regulated contaminants. This monitoring examines what may be in drinking water, but additional health information is needed to know whether these contaminants pose a risk.
list of no more than 30 un- regulated contaminants that public water systems must monitor for. Unregulated contaminants are those for which EPA has not established drinking wa- ter standards. The purpose of unregulated contaminant monitoring is to assist EPA in determining the occurrence of unregulated contaminants in drinking wa- ter and whether future regula- Information on all the un- regulated contaminants that were monitored for can be obtained from this water sys- tem or the Department of Natural Resources. Below are those contami- nants that were detected in Marshall’s water supply in 2013 and 2014. Another round of monitoring for unregulated contaminants will occur in 2018—2020. Page 5 Water Quality Report 2016 Using too much water? Check that toilet! A running toilet can waste hundreds of gallons of water per day. One simple way to do so is to add food coloring to the toilet tank and let it sit without flushing overnight or during the day when no one is home. If there is red color in the bowl after letting it sit, you have a leaking toilet tank. Get it fixed; don’t flush money down the drain! MMU allowed the Division of Geology and Land Survey (DGLS) to place water level monitoring equipment in one of its monitoring wells. The monitoring equipment relays information to DGLS on a daily basis on how far down it is to the water level . This well is one of a number in the state that allows DGLS to track groundwater levels in the various aquifers in the state, helpful information during droughts.
Community water sys- tems, such as MMU, con- duct routine monitoring at selected houses. The results of the most re- cent monitoring are on page 2.
If present, elevated levels of lead can cause serious health problems, espe- cially for pregnant women and young chil- dren. Lead in drinking water is primarily from materials and compo- nents associated with service lines and home plumbing. MMU is re- sponsible for providing high quality drinking wa- ter but cannot control the variety of materials used in plumbing compo- nents.
When your water has been sitting for several hours, you can minimize the potential for lead ex- posure by flushing your tap for 30 seconds to 2 minutes before using wa- ter for drinking or cook- ing.
If you are concerned about lead in your water, you may wish to have your water tested. Infor- mation on lead in drink- ing water, testing meth- ods, and steps you can take to minimize expo- sure is available from the Safe Drinking Water Hot- line or at www.epa.gov/ safewater/lead. Lead is a naturally- occurring metal that for most of the 20th century was used regularly as a component of paint, piping (including water service lines), solder, brass, and until the 1980s, as a gaso- line additive. Lead is no longer used in many of these products, but older products - such as paints and plumbing fixtures in older houses - that contain lead remain. EPA and CDC report that lead paint (and the contaminated dust and soil that it generates) is the leading source of lead exposure in older housing. While lead is rarely present in water coming from a water treatment plant, it can enter tap water through corrosion of some plumbing materials. A number of aggressive and successful steps have been taken in recent years to reduce the occurrence of lead in drinking water: In 1986, Congress amended the national Safe Drinking Water Act to pro- hibit the use of pipe, sol- der, or flux containing high lead levels. The Lead Contamination Control Act of 1988 led schools and daycare cen- ters to repair or remove water coolers with lead- lined tanks. EPA provided guidance to inform and facilitate their action.
Kyle Gibbs, General Manager 75 E. Morgan Marshall, Missouri 65340 Phone: 660.886.6966 Fax: 660.886.6724 E-mail: mmumo.net www.mmumo.net Page 6 F UN W ATER F ACTS
under the ground in aquifers than on the earth’s surface.
could fit in a 1 gallon jug, the fresh water available for use would equal only about one table- spoon. Water expands by 9% when it freezes making ice lighter than water. This is why ice floats in water. Download 97.85 Kb. Do'stlaringiz bilan baham: 
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