Annual Drinking Water Quality Report for 2018 - Village of L'Anse

Is my water safe?


We are pleased to present this year's Annual Water Quality Report (Consumer Confidence Report) as required by the Safe Drinking Water Act (SDWA). This report is designed to provide details about where your water comes from, what it contains, and how it compares to standards set by regulatory agencies. This report is a snapshot of last year's water quality. We are committed to providing you with information because informed customers are our best allies.

 

Do I need to take special precautions?


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/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 Water Drinking Hotline (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/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 Water Drinking Hotline (800-426-4791).

 

Where does my water come from?


Your water comes from Keweenaw Bay. A chemical called alum is added to the water to help remove particles that make the water cloudy or turbid. This allows particles to clump together to allow the particles to be captured in sand filters. Lime is added to control corrosion. Corrosive water can cause lead and copper to leach out of the pipes. Chlorine is added in the treatment process to kill harmful bacteria. During the plant operating hours, the plant staff is constantly monitoring the treatment process to assure a supply of safe, potable water.

 

Source water assessment and its availability


The State performed an assessment of our source water in 2003. The susceptibility for surface water sources range from very high for inland rivers to moderately low for deep lake intakes. Our source has been rated as highly susceptible.

 

Source water assessment and its availability


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 (EPA) Safe Drinking Water Hotline (800-426-4791). 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 (EPA) Safe Drinking Water Hotline (800-426-4791). The State performed an assessment of our source water in 2003. The susceptibility for surface water sources range from very high for inland rivers to moderately low for deep lake intakes. Our source has been rated as highly susceptible.

 

How can I get involved?


Council meetings are the second and fourth Monday of the month.

 

Other Information


We will update this report annually and will keep you informed of any problems that may occur throughout the year, as they happen. Copies are available at the Village office and available at www. villageoflanse.org. It was published in the L'Anse Sentinel. For more information, contact the Village at 524-6116 or Greg Fish at the Water Treatment Plant (524-5880).

 

Monitoring and reporting of compliance data violations


The village mistakenly did not take a sample for Total Trihalomethanes and Haloacetic acids during November 1 to November 30, 2018. We sampled February 2019 and all results were below the MCL. We have taking steps to be sure to monitor for Total Trihalomethanes and Haloacetic acids, as required. For more information, contact the Village at 524-6116 or Scott Lloyd at 906-395-2777.

 

Additional Information for Lead


If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. Village of L'Anse 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 at 1-800-426-4791 or http://www.epa.gov/drink/info/lead.

 


Water Quality Data Table

In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the amount of contaminants in water provided by public water systems. The table below lists all of the drinking water contaminants that we detected during the calendar year of this report. Although many more contaminants were tested, only those substances listed below were found in your water. All sources of drinking water contain some naturally occurring contaminants. At low levels, these substances are generally not harmful in our drinking water. Removing all contaminants would be extremely expensive, and in most cases, would not provide increased protection of public health. A few naturally occurring minerals may actually improve the taste of drinking water and have nutritional value at low levels. Unless otherwise noted, the data presented in this table is from testing done in the calendar year of the report. The EPA or the State requires us to monitor for certain contaminants less than once per year because the concentrations of these contaminants do not vary significantly from year to year, or the system is not considered vulnerable to this type of contamination. As such, some of our data, though representative, may be more than one year old. In this table you will find terms and abbreviations that might not be familiar to you. To help you better understand these terms, we have provided the definitions below the table.

 

Contaminants

MCLG
or
MRDLG

MCL,
TT, or
MRDL

Detect In
Your Water

Range

Sample
Date

Violation

Typical Source

Low

High

Disinfectants & Disinfection By-Products

(There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants)

Chlorine (as Cl2) (ppm)

4

4

.95

.6

1.22

2018

No

Water additive used to control microbes

Haloacetic Acids (HAA5) (ppb)

NA

60

21

19

21

2018

No

By-product of drinking water chlorination

TTHMs [Total Trihalomethanes] (ppb)

NA

80

41.2

19.4

41.2

2018

No

By-product of drinking water disinfection

Microbiological Contaminants

Turbidity (NTU)

NA

0.3

100

NA

NA

2018

No

Soil runoff

100% of the samples were below the TT value of .3. A value less than 95% constitutes a TT violation. The highest single measurement was .1. Any measurement in excess of 1 is a violation unless otherwise approved by the state.

Radioactive Contaminants

Alpha emitters (pCi/L)

0

15

.6

NA

NA

2015

No

Erosion of natural deposits

Radium (combined 226/228) (pCi/L)

0

5

0

NA

NA

2015

No

Erosion of natural deposits

Volatile Organic Contaminants

Xylenes (ppm)

10

10

.0008

NA

NA

2018

No

Discharge from petroleum factories; Discharge from chemical factories

 

Contaminants

MCLG

AL

Your
Water

Sample
Date

# Samples
Exceeding AL

Exceeds AL

Typical Source

Inorganic Contaminants

Copper - action level at consumer taps (ppm)

1.3

1.3

.1

2017

0

No

Corrosion of household plumbing systems; Erosion of natural deposits

Inorganic Contaminants

Lead - action level at consumer taps (ppb)

0

15

1

2017

0

No

Corrosion of household plumbing systems; Erosion of natural deposits

 


Undetected Contaminants

The following contaminants were monitored for, but not detected, in your water.

 

Contaminants

MCLG
or
MRDLG

MCL,
TT, or
MRDL

Your
Water

Violation

Typical Source

Cyanide (ppb)

200

200

ND

No

Discharge from plastic and fertilizer factories; Discharge from steel/metal factories

Fluoride (ppm)

4

4

ND

No

Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories

Nitrate [measured as Nitrogen] (ppm)

10

10

ND

No

Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits

Nitrite [measured as Nitrogen] (ppm)

1

1

ND

No

Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits

Sodium (optional) (ppm)

NA

ND

No

Erosion of natural deposits; Leaching

 


Additional Monitoring

As part of an on-going evaluation program the EPA has required us to monitor some additional contaminants/chemicals. Information collected through the monitoring of these contaminants/chemicals will help to ensure that future decisions on drinking water standards are based on sound science.

 

Name

Reported Level

Range

Low

High

HAA6Br (ug/L)

2.7

.847

4.091

HAA9 (ug/L)

22.9

16.3

31.8

manganese (ug/L)

.124

.495

 


Unit Descriptions

Term

Definition

ug/L

ug/L : Number of micrograms of substance in one liter of water

ppm

ppm: parts per million, or milligrams per liter (mg/L)

ppb

ppb: parts per billion, or micrograms per liter (µg/L)

pCi/L

pCi/L: picocuries per liter (a measure of radioactivity)

NTU

NTU: Nephelometric Turbidity Units. Turbidity is a measure of the cloudiness of the water. We monitor it because it is a good indicator of the effectiveness of our filtration system.

NA

NA: not applicable

ND

ND: Not detected

NR

NR: Monitoring not required, but recommended.

 

Important Drinking Water Definitions

Term

Definition

MCLG

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.

MCL

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.

TT

TT: Treatment Technique: A required process intended to reduce the level of a contaminant in drinking water.

AL

AL: Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.

Variances and Exemptions

Variances and Exemptions: State or EPA permission not to meet an MCL or a treatment technique under certain conditions.

MRDLG

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 contaminants.

MRDL

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.

MNR

MNR: Monitored Not Regulated

MPL

MPL: State Assigned Maximum Permissible Level

 

For more information please contact: Greg Fish at 906-524-5880