Lake Village Water Quality Report

Drinking Water Quality Report for 2023

Lake Village—Yellowstone National Park—Public Water System 5680079

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).

Where does my water come from?

Fishing Bridge Well #1 and Well #2 and the Lake Village Springs

Source water assessment and its availability

Has not been conducted

Why are there contaminants in my drinking 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 (EPA) Safe Drinking Water Hotline (800-426-4791).

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: microbial contaminants, such as viruses and bacteria, that may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife; inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban stormwater 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 stormwater runoff, and residential uses; organic Chemical Contaminants, including synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, and can also come from gas stations, urban stormwater runoff, and septic systems; and radioactive contaminants, which can 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, EPA prescribes regulations that 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.

How can I get involved?

If you would know more or get involved contact us at jason_murphy@nps.gov or call (406) 640-0035

 

Monitoring and Reporting of Compliance Data Violations

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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
2,4,5-TP (Silvex)
Some people who drink water containing silvex in excess of the MCL over many years could experience liver problems.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
2,4-D
Some people who drink water containing the weed killer 2,4-D well in excess of the MCL over many years could experience problems with their kidneys, liver, or adrenal glands.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
Chlorobenzene
Some people who drink water containing chlorobenzene in excess of the MCL over many years could experience problems with their liver or kidneys.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
Dalapon
Some people who drink water containing dalapon well in excess of the MCL over many years could experience minor kidney changes.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
Dinoseb
Some people who drink water containing dinoseb well in excess of the MCL over many years could experience reproductive difficulties.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
Diquat
Some people who drink water containing diquat in excess of the MCL over many years could get cataracts.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
Endothall
Some people who drink water containing endothall in excess of the MCL over many years could experience problems with their stomach or intestines.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
Lead and Copper Rule
The Lead and Copper Rule protects public health by minimizing lead and copper levels in drinking water, primarily by reducing water corrosivity. Lead and copper enter drinking water mainly from corrosion of lead and copper containing plumbing materials.
Violation Type Violation Begin Violation End Violation Explanation
LEAD CONSUMER NOTICE (LCR) 09/29/2023 2023 We failed to provide the results of lead tap water monitoring to the consumers at the location water was tested. These were supposed to be provided no later than 30 days after learning the results.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
Picloram
Some people who drink water containing picloram in excess of the MCL over many years could experience problems with their liver.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
Xylenes
Some people who drink water containing xylenes in excess of the MCL over many years could experience damage to their nervous system.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
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.
Violation Type Violation Begin Violation End Violation Explanation
MONITORING, ROUTINE MAJOR 07/01/2023 09/30/2023 We tested our drinking water for the contaminant and period indicated but the results were reported late, after the end of the reporting period.
 

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. Lake Village WY5680079 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.

Additional Information for Arsenic

While your drinking water meets EPA's standard for arsenic, it does contain low levels of arsenic. EPA's standard balances the current understanding of arsenic's possible health effects against the costs of removing arsenic from drinking water. EPA continues to research the health effects of low levels of arsenic which is a mineral known to cause cancer in humans at high concentrations and is linked to other health effects such as skin damage and circulatory problems.

 

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)
Haloacetic Acids (HAA5) (ppb) NA 60 3 NA NA 2023 No By-product of drinking water chlorination
TTHMs [Total Trihalomethanes] (ppb) NA 80 2 NA NA 2023 No By-product of drinking water chlorination
Inorganic Contaminants
Arsenic (ppb) 0 10 4 NA NA 2023 No Erosion of natural deposits
Fluoride (ppm) 4 4 .8 NA NA 2023 No Erosion of natural deposits
Nitrate [measured as Nitrogen] (ppm) 10 10 .04 NA NA 2023 No Erosion of natural deposits
Contaminants MCLG MCLG
Your Water		 Sample
Date		 # Samples
Exceeding AL		 Exceeds AL Typical Source
Inorganic Contaminants
Copper - action level at consumer taps (ppm) 1.3 1.3 .42* January to
June 2023		 0 No Corrosion of household plumbing systems;
Erosion of natural deposits
Lead - action level at consumer taps (ppb) 0 15 15* January to
June 2023		 1 No Corrosion of household plumbing systems;
Erosion of natural deposits
*90th percentile value
 
Unit Descriptions
Term Definition
ppm parts per million, or milligrams per liter (mg/L)
ppb parts per billion, or micrograms per liter (μg/L)
NA not applicable
ND not detected
NR monitoring not required, but recommended
 
Important Drinking Water Definitions
Term Definition
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 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 Treatment Technique: A required process intended to reduce the level of a contaminant in drinking water.
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 State or EPA permission not to meet an MCL or a treatment technique under certain conditions.
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 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 Monitored Not Regulated
MPL State Assigned Maximum Permissible Level
 
For more information please contact:
Utility Systems Operations Facility Manager at
jason_murphy@nps.gov
(406) 640-0035

Last updated: September 6, 2024

Contact Info

Mailing Address:

PO Box 168
Yellowstone National Park, WY 82190-0168

Phone:

307-344-7381

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