Details for 2018 Water Report

city of aitkin 2018 drinking water report Making Safe Drinking Water Your drinking water comes from a groundwater source: two wells ranging from 217 to 229 feet deep, that draw water from the Quaternary Buried Artesian aquifer. Aitkin works hard to provide you with safe and reliable drinking water that meets federal and state water quality requirements. The purpose of this report is to provide you with information on your drinking water and how to protect our precious water resources. Contact Jason Dox, Accountant, at (218) 927-3222 or jasondox@aitkinutilities.com if you have questions about Aitkins drinking water. You can also ask for information about how you can take part in decisions that may affect water quality. The U.S. Environmental Protection Agency sets safe drinking water standards. These standards limit the amounts of specific contaminants allowed in drinking water. This ensures that tap water is safe to drink for most people. The U.S. Food and Drug Administration regulates the amount of certain contaminants in bottled water. Bottled water must provide the same public health protection as public tap water. 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 water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agencys Safe Drinking Water Hotline at 1 800 426 4791. Aitkin Monitoring Results This report contains our monitoring results from January 1 to December 31, 2018. We work with the Minnesota Department of Health to test drinking water for more than 100 contaminants. It is not unusual to detect contaminants in small amounts. No water supply is ever completely free of contaminants. Drinking water standards protect Minnesotans from substances that may be harmful to their health. Learn more by visiting the Minnesota Department of Healths webpage Basics of Monitoring and Testing of Drinking Water in Minnesota (https://www.health.state.mn.us/communities/environment/water/factsheet/sampling.html). How to Read the Water Quality Data Tables The tables below show the contaminants we found last year or the most recent time we sampled for that contaminant. They also show the levels of those contaminants and the Environmental Protection Agencys limits. Substances that we tested for but did not find are not included in the tables. We sample for some contaminants less than once a year because their levels in water are not expected to change from year to year. If we found any of these contaminants the last time we sampled for them, we included them in the tables below with the detection date. We may have done additional monitoring for contaminants that are not included in the Safe Drinking Water Act. To request a copy of these results, call the Minnesota Department of Health at 651-201-4700 or 1-800-818-9318 between 8:00 a.m. and 4:30 p.m., Monday through Friday. Definitions AL (Action Level): The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow. EPA: Environmental Protection Agency 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 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. Level 1 Assessment: A Level 1 assessment is a study of the water system to identify potential problems and determine (if possible) why total coliform bacteria have been found in our water system. Level 2 Assessment: A Level 2 assessment is a very detailed study of the water system to identify potential problems and determine (if possible) why an E. coli MCL violation has occurred and/or why total coliform bacteria have been found in our water system on multiple occasions. MRDL (Maximum residual disinfectant level): The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants. MRDLG (Maximum residual disinfectant 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 contaminants. NA (Not applicable): Does not apply. NTU (Nephelometric Turbidity Units): A measure of the cloudiness of the water (turbidity). pCi/l (picocuries per liter): A measure of radioactivity. ppb (parts per billion): One part per billion in water is like one drop in one billion drops of water, or about one drop in a swimming pool. ppb is the same as micrograms per liter (g/l). ppm (parts per million): One part per million is like one drop in one million drops of water, or about one cup in a swimming pool. ppm is the same as milligrams per liter (mg/l). PWSID: Public water system identification. TT (Treatment Technique): A required process intended to reduce the level of a contaminant in drinking water. Variances and Exemptions: State or EPA permission not to meet an MCL or a treatment technique under certain conditions. Monitoring Results Regulated Substances Potential Health Effects and Corrective Actions (If Applicable) Fluoride: If your drinking water fluoride levels are below the optimal concentration range of 0.7 to 1.2 ppm, please talk with your dentist about how you can protect your teeth and your familys teeth from tooth decay and cavities. For more information, visit: MDH Drinking Water Fluoridation (http://www.health.state.mn.us/divs/eh/water/com/fluoride/index.html). Copper: During the year, we failed to provide lead results to persons served at the sites that were tested as required by the Lead and Copper Rule during the timeframe allowed Lead: During the year, we failed to provide lead results to persons served at the sites that were tested as required by the Lead and Copper Rule during the timeframe allowed Some People Are More Vulnerable to Contaminants in Drinking Water 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. The developing fetus and therefore pregnant women may also be more vulnerable to contaminants in drinking water. These people or their caregivers should seek advice about drinking water from their health care providers. EPA/Centers for Disease Control (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 at 1 800 426 4791. Learn More about Your Drinking Water Drinking Water Sources Minnesotas primary drinking water sources are groundwater and surface water. Groundwater is the water found in aquifers beneath the surface of the land. Groundwater supplies 75 percent of Minnesotas drinking water. Surface water is the water in lakes, rivers, and streams above the surface of the land. Surface water supplies 25 percent of Minnesotas drinking water. Contaminants can get in drinking water sources from the natural environment and from peoples daily activities. There are five main types of contaminants in drinking water sources. Microbial contaminants, such as viruses, bacteria, and parasites. Sources include sewage treatment plants, septic systems, agricultural livestock operations, pets, and wildlife. Inorganic contaminants include salts and metals from natural sources (e.g. rock and soil), oil and gas production, mining and farming operations, urban stormwater runoff, and wastewater discharges. Pesticides and herbicides are chemicals used to reduce or kill unwanted plants and pests. Sources include agriculture, urban stormwater runoff, and commercial and residential properties. Organic chemical contaminants include synthetic and volatile organic compounds. Sources include industrial processes and petroleum production, gas stations, urban stormwater runoff, and septic systems. Radioactive contaminants such as radium, thorium, and uranium isotopes come from natural sources (e.g. radon gas from soils and rock), mining operations, and oil and gas production. The Minnesota Department of Health provides information about your drinking water source(s) in a source water assessment, including: How Aitkin is protecting your drinking water source(s); Nearby threats to your drinking water sources; How easily water and pollution can move from the surface of the land into drinking water sources, based on natural geology and the way wells are constructed. Find your source water assessment at Source Water Assessments (https://www.health.state.mn.us/communities/environment/water/swp/swa) or call 651-201-4700 or 1-800-818-9318 between 8:00 a.m. and 4:30 p.m., Monday through Friday. Lead in Drinking Water You may be in contact with lead through paint, water, dust, soil, food, hobbies, or your job. Coming in contact with lead can cause serious health problems for everyone. There is no safe level of lead. Babies, children under six years, and pregnant women are at the highest risk. Lead is rarely in a drinking water source, but it can get in your drinking water as it passes through lead service lines and your household plumbing system. Aitkin provides high quality drinking water, but it cannot control the plumbing materials used in private buildings. Read below to learn how you can protect yourself from lead in drinking water. 1. Let the water run for 30-60 seconds before using it for drinking or cooking if the water has not been turned on in over six hours. If you have a lead service line, you may need to let the water run longer. A service line is the underground pipe that brings water from the main water pipe under the street to your home. You can find out if you have a lead service line by contacting your public water system, or you can check by following the steps at: https://www.mprnews.org/story/2016/06/24/npr-find-lead-pipes-in-your-home The only way to know if lead has been reduced by letting it run is to check with a test. If letting the water run does not reduce lead, consider other options to reduce your exposure. 2. Use cold water for drinking, making food, and making baby formula. Hot water releases more lead from pipes than cold water. 3. Test your water. In most cases, letting the water run and using cold water for drinking and cooking should keep lead levels low in your drinking water. If you are still concerned about lead, arrange with a laboratory to test your tap water. Testing your water is important if young children or pregnant women drink your tap water. Contact a Minnesota Department of Health accredited laboratory to get a sample container and instructions on how to submit a sample: Environmental Laboratory Accreditation Program (https://eldo.web.health.state.mn.us/public/accreditedlabs/labsearch.seam) The Minnesota Department of Health can help you understand your test results. 4. Treat your water if a test shows your water has high levels of lead after you let the water run. Read about water treatment units: Point-of-Use Water Treatment Units for Lead Reduction (https://www.health.state.mn.us/communities/environment/water/factsheet/poulead.html) Learn more: Visit Lead in Drinking Water (https://www.health.state.mn.us/communities/environment/water/contaminants/lead.html) Visit Basic Information about Lead in Drinking Water (http://www.epa.gov/safewater/lead) Call the EPA Safe Drinking Water Hotline at 1 800 426 4791.To learn about how to reduce your contact with lead from sources other than your drinking water, visit Lead Poisoning Prevention: Common Sources (https://www.health.state.mn.us/communities/environment/lead/sources.html). Published in the Aitkin Independent Age June 5, 2019 942633

CITY OF AITKIN
2018 DRINKING WATER REPORT

(HAA) (2017)

Making Safe Drinking Water
Your drinking water comes from a groundwater source: two wells ranging from 217 to 229 feet deep, that draw
water from the Quaternary Buried Artesian aquifer.
Aitkin works hard to provide you with safe and reliable drinking water that meets federal and state water quality requirements. The purpose of this report is to provide you with information on your drinking water and how to
protect our precious water resources.
Contact Jason Dox, Accountant, at (218) 927-3222 or jasondox@aitkinutilities.com if you have questions
about Aitkin’s drinking water. You can also ask for information about how you can take part in decisions that may
affect water quality.
The U.S. Environmental Protection Agency sets safe drinking water standards. These standards limit the
amounts of specific contaminants allowed in drinking water. This ensures that tap water is safe to drink for most
people. The U.S. Food and Drug Administration regulates the amount of certain contaminants in bottled water.
Bottled water must provide the same public health protection as public tap water.
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 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 1 800 426 4791.
Aitkin Monitoring Results
This report contains our monitoring results from January 1 to December 31, 2018.
We work with the Minnesota Department of Health to test drinking water for more than 100 contaminants. It is
not unusual to detect contaminants in small amounts. No water supply is ever completely free of contaminants.
Drinking water standards protect Minnesotans from substances that may be harmful to their health.
Learn more by visiting the Minnesota Department of Health’s webpage Basics of Monitoring and Testing of
Drinking Water in Minnesota (https://www.health.state.mn.us/communities/environment/water/factsheet/sampling.html).
How to Read the Water Quality Data Tables
The tables below show the contaminants we found last year or the most recent time we sampled for that
contaminant. They also show the levels of those contaminants and the Environmental Protection Agency’s limits.
Substances that we tested for but did not find are not included in the tables.
We sample for some contaminants less than once a year because their levels in water are not expected to
change from year to year. If we found any of these contaminants the last time we sampled for them, we included
them in the tables below with the detection date.
We may have done additional monitoring for contaminants that are not included in the Safe Drinking Water
Act. To request a copy of these results, call the Minnesota Department of Health at 651-201-4700 or 1-800-8189318 between 8:00 a.m. and 4:30 p.m., Monday through Friday.
Definitions
• AL (Action Level): The concentration of a contaminant which, if exceeded, triggers treatment or other
requirements which a water system must follow.
• EPA: Environmental Protection Agency
• 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 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.
• Level 1 Assessment: A Level 1 assessment is a study of the water system to identify potential problems
and determine (if possible) why total coliform bacteria have been found in our water system.
• Level 2 Assessment: A Level 2 assessment is a very detailed study of the water system to identify
potential problems and determine (if possible) why an E. coli MCL violation has occurred and/or why total
coliform bacteria have been found in our water system on multiple occasions.
• MRDL (Maximum residual disinfectant level): The highest level of a disinfectant allowed in drinking
water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial
contaminants.
• MRDLG (Maximum residual disinfectant 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 contaminants.
• NA (Not applicable): Does not apply.
• NTU (Nephelometric Turbidity Units): A measure of the cloudiness of the water (turbidity).
• pCi/l (picocuries per liter): A measure of radioactivity.
• ppb (parts per billion): One part per billion in water is like one drop in one billion drops of water, or about
one drop in a swimming pool. ppb is the same as micrograms per liter (μg/l).
• ppm (parts per million): One part per million is like one drop in one million drops of water, or about one
cup in a swimming pool. ppm is the same as milligrams per liter (mg/l).
• PWSID: Public water system identification.
• TT (Treatment Technique): A required process intended to reduce the level of a contaminant in drinking
water.
• Variances and Exemptions: State or EPA permission not to meet an MCL or a treatment technique under
certain conditions.
Monitoring Results – Regulated Substances
LEAD AND COPPER – Tested at customer taps.
Contaminant
(Date, if sampled
in previous year)
Copper (07/25/17)
Lead (07/25/17)

EPA’s Action
Level
90% of
homes less
than 1.3 ppm
90% of
homes less
than 15 ppb

EPA’s
Ideal
Goal
(MCLG)

90% of
Results
Were
Less
Than

0 ppm

0.38 ppm

0 ppb

3.4 ppb

Number
of
Homes
with
High
Levels
0 out
of 10
0 out
of 10

INORGANIC & ORGANIC CONTAMINANTS – Tested in drinking water.
Highest
Average
EPA’s
Range of
Contaminant
or
EPA’s Limit
Ideal
Detected
(Date, if sampled
Highest
(MCL)
Goal
Test
in previous year)
Single
(MCLG)
Results
Test
Result
Gross Alpha (2017)
15.4 pCi/l
0 pCi/l
7.6 pCi/l
N/A

Violation

Typical Sources

NO

Corrosion of
household
plumbing.
Corrosion of
household
plumbing.

NO

Violation

Typical Sources

NO

Erosion of natural
deposits.

CONTAMINANTS RELATED TO DISINFECTION – Tested in drinking water.
Highest
EPA’s
Average
Ideal
Range of
Substance(Date, if
EPA’s Limit
or
Goal
Detected
sampled in pre(MCL or
Highest
Violation
(MCLG
Test
vious year)
MRDL)
Single
or
Results
Test
MRDLG)
Result
Total Trihalomethanes
80 ppb
N/A
0.6 ppb
N/A
NO
(TTHMs) (2017)
Total Haloacetic Acids

60 ppb

N/A

1 ppb

N/A

NO

Typical Sources

By-product of
drinking water
disinfection.
By-product of

Total Chlorine

4.0 ppm

4.0 ppm

1.33 ppm

0.62 1.67 ppm

NO

drinking water
disinfection.
Water additive
used to control
microbes.

Violation

Typical Sources

NO

Erosion of
natural deposits;
Water additive
to promote
strong teeth.

Total HAA refers to HAA5
OTHER SUBSTANCES – Tested in drinking water.
Substance(Date, if
sampled in previous year)
Fluoride

EPA’s Limit
(MCL )

EPA’s
Ideal
Goal
(MCLG)

4.0 ppm

4.0 ppm

Highest
Average
or
Highest
Single
Test
Result
0.54 ppm

Range of
Detected
Test
Results
0.50 0.55 ppm

Potential Health Effects and Corrective Actions (If Applicable)
Fluoride: If your drinking water fluoride levels are below the optimal concentration range of 0.7 to 1.2 ppm,
please talk with your dentist about how you can protect your teeth and your family’s teeth from tooth decay and
cavities. For more information, visit: MDH Drinking Water Fluoridation (http://www.health.state.mn.us/divs/eh/
water/com/fluoride/index.html).
Copper: During the year, we failed to provide lead results to persons served at the sites that were tested as
required by the Lead and Copper Rule during the timeframe allowed
Lead: During the year, we failed to provide lead results to persons served at the sites that were tested as
required by the Lead and Copper Rule during the timeframe allowed
Some People Are More Vulnerable to Contaminants in Drinking Water
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. The developing fetus and therefore pregnant women may also be more vulnerable to contaminants in drinking water. These people or their caregivers should seek advice about drinking
water from their health care providers. EPA/Centers for Disease Control (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 at 1 800 426 4791.
Learn More about Your Drinking Water
Drinking Water Sources
Minnesota’s primary drinking water sources are groundwater and surface water. Groundwater is the water
found in aquifers beneath the surface of the land. Groundwater supplies 75 percent of Minnesota’s drinking water. Surface water is the water in lakes, rivers, and streams above the surface of the land. Surface water supplies
25 percent of Minnesota’s drinking water.
Contaminants can get in drinking water sources from the natural environment and from people’s daily activities. There are five main types of contaminants in drinking water sources.
• Microbial contaminants, such as viruses, bacteria, and parasites. Sources include sewage treatment
plants, septic systems, agricultural livestock operations, pets, and wildlife.
• Inorganic contaminants include salts and metals from natural sources (e.g. rock and soil), oil and gas
production, mining and farming operations, urban stormwater runoff, and wastewater discharges.
• Pesticides and herbicides are chemicals used to reduce or kill unwanted plants and pests. Sources include
agriculture, urban stormwater runoff, and commercial and residential properties.
• Organic chemical contaminants include synthetic and volatile organic compounds. Sources include
industrial processes and petroleum production, gas stations, urban stormwater runoff, and septic systems.
• Radioactive contaminants such as radium, thorium, and uranium isotopes come from natural sources (e.g.
radon gas from soils and rock), mining operations, and oil and gas production.
The Minnesota Department of Health provides information about your drinking water source(s) in a source
water assessment, including:
• How Aitkin is protecting your drinking water source(s);
• Nearby threats to your drinking water sources;
• How easily water and pollution can move from the surface of the land into drinking water sources, based on
natural geology and the way wells are constructed.
Find your source water assessment at Source Water Assessments
(https://www.health.state.mn.us/communities/environment/water/swp/swa) or call 651-201-4700 or 1-800818-9318 between 8:00 a.m. and 4:30 p.m., Monday through Friday.
Lead in Drinking Water
You may be in contact with lead through paint, water, dust, soil, food, hobbies, or your job. Coming in contact
with lead can cause serious health problems for everyone. There is no safe level of lead. Babies, children under
six years, and pregnant women are at the highest risk.
Lead is rarely in a drinking water source, but it can get in your drinking water as it passes through lead service
lines and your household plumbing system. Aitkin provides high quality drinking water, but it cannot control the
plumbing materials used in private buildings.
Read below to learn how you can protect yourself from lead in drinking water.
1. Let the water run for 30-60 seconds before using it for drinking or cooking if the water has not been turned
on in over six hours. If you have a lead service line, you may need to let the water run longer. A service line is
the underground pipe that brings water from the main water pipe under the street to your home.
• You can find out if you have a lead service line by contacting your public water system, or you can check
by following the steps at: https://www.mprnews.org/story/2016/06/24/npr-find-lead-pipes-in-your-home
• The only way to know if lead has been reduced by letting it run is to check with a test. If letting the water
run does not reduce lead, consider other options to reduce your exposure.
2. Use cold water for drinking, making food, and making baby formula. Hot water releases more lead from
pipes than cold water.
3. Test your water. In most cases, letting the water run and using cold water for drinking and cooking should
keep lead levels low in your drinking water. If you are still concerned about lead, arrange with a laboratory to
test your tap water. Testing your water is important if young children or pregnant women drink your tap
water.
• Contact a Minnesota Department of Health accredited laboratory to get a sample container and
instructions on how to submit a sample:
Environmental Laboratory Accreditation Program
(https://eldo.web.health.state.mn.us/public/accreditedlabs/labsearch.seam)
The Minnesota Department of Health can help you understand your test results.
4. Treat your water if a test shows your water has high levels of lead after you let the water run.
• Read about water treatment units:
Point-of-Use Water Treatment Units for Lead Reduction
(https://www.health.state.mn.us/communities/environment/water/factsheet/poulead.html)
Learn more:
• Visit Lead in Drinking Water
(https://www.health.state.mn.us/communities/environment/water/contaminants/lead.html)
• Visit Basic Information about Lead in Drinking Water (http://www.epa.gov/safewater/lead)
• Call the EPA Safe Drinking Water Hotline at 1 800 426 4791.To learn about how to reduce your contact with
lead from sources other than your drinking water, visit Lead Poisoning Prevention: Common Sources
(https://www.health.state.mn.us/communities/environment/lead/sources.html).
Published in the
Aitkin Independent Age
June 5, 2019
942633

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