# 2024 Consumer Confidence Report (CCR)

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URL: https://www.frixlaw.com/law-library/documents/tribal%3Awyandotte%3A40aecb0ed6437928

## Record

- **Collection:** Tribal code
- **Document type:** Tribal code

## Text

Wyandotte Nation
2024 Consumer Confidence Report (CCR)
PWS ID: 062005883
Released: June 2025

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. The
Environmental Protection Agency (EPA) and Centers for Disease Control and Prevention (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 (800-426-4791).

Where does my water come from?
Your water comes from the Roubidoux Aquifer and is pumped through 3 groundwater wells. Two
of our wells are regulated under EPA Region 6, and we also receive water from a third well that
is regulated under the Oklahoma Department of Environmental Quality (ODEQ).

Source Water Assessment and its availability
The 1996 amendments to the Safe Drinking Water Act authorize a Source Water Assessment to
determine the susceptibility of a public drinking water supply to contamination. Potential sources
of contaminants regulated by the Safe Drinking Water Act are required to be inventoried during
the assessment process. The EPA Region 6 Source Water Protection Branch, in cooperation with
Wyandotte Nation conducted this assessment in September of 2008. Based on the following
factors, your water system was determined to have a Low susceptibility to contamination. The

physical integrity of the well, the characteristics of the hydrologic system around the well, the
characteristics of the contaminants inventoried and the likelihood of those contaminants to reach
the source of the drinking water supply all impact the susceptibility of the source to contamination.
A copy of this report is available at our water office for your review.

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, 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?
You can assist the Wyandotte Nation Water Utilities Department and the community in protecting
our valuable water resources by conserving water usage and reporting broken water lines or
unusual activity near well houses, storage tanks or hydrants. For more information, please contact
our office at 918-678-6335.

Description of Water Treatment Process
Your water is treated by disinfection. Disinfection involves the addition of chlorine or other
disinfectant to kill dangerous bacteria and microorganisms that may be in the water. Disinfection
is considered to be one of the major public health advances of the 20th century.

Water Conservation Tips
Did you know that the average U.S. household uses approximately 400 gallons of water per day
or 100 gallons per person per day? Luckily, there are many low-cost and no-cost ways to conserve
water. Small changes can make a big difference - try one today and soon it will become second
nature.
•
•
•
•
•
•

•
•
•

Take short showers - a 5-minute shower uses 4 to 5 gallons of water compared to up to 50
gallons for a bath.
Shut off water while brushing your teeth, washing your hair and shaving and save up to 500
gallons a month.
Use a water-efficient showerhead. They're inexpensive, easy to install, and can save you
up to 750 gallons a month.
Run your clothes washer and dishwasher only when they are full. You can save up to 1,000
gallons a month.
Water plants only when necessary.
Fix leaky toilets and faucets. Faucet washers are inexpensive and take only a few minutes
to replace. To check your toilet for a leak, place a few drops of food coloring in the tank and
wait. If it seeps into the toilet bowl without flushing, you have a leak. Fixing it or replacing it
with a new, more efficient model can save up to 1,000 gallons a month.
Adjust sprinklers so only your lawn is watered. Apply water only as fast as the soil can
absorb it and during the cooler parts of the day to reduce evaporation.
Teach your kids about water conservation to ensure a future generation that uses water
wisely. Make it a family effort to reduce next month's water bill!
Visit www.epa.gov/watersense for more information.

Source Water Protection Tips
Protection of drinking water is everyone's responsibility. You can help protect your community's
drinking water source in several ways:
•
•
•
•
•

•

Eliminate excess use of lawn and garden fertilizers and pesticides - they contain hazardous
chemicals that can reach your drinking water source.
Pick up after your pets.
If you have your own septic system, properly maintain your system to reduce leaching to
water sources or consider connecting to a public water system.
Dispose of chemicals properly; take used motor oil to a recycling center.
Volunteer in your community. Find a watershed or wellhead protection organization in your
community and volunteer to help. If there are no active groups, consider starting one. Use
EPA's Adopt Your Watershed to locate groups in your community, or visit the Watershed
Information Network's How to Start a Watershed Team.
Organize a storm drain stenciling project with your local government or water supplier.
Stencil a message next to the street drain reminding people "Dump No Waste - Drains to
River" or "Protect Your Water." Produce and distribute a flyer for households to remind
residents that storm drains dump directly into your local water body.

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. We are 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 http://www.epa.gov/safewater/lead.
Exposure to lead in drinking water can cause serious health effects in all age groups. Infants and
children can have decreases in Intelligence Quotient (IQ) and attention span. Lead exposure can
lead to new learning and behavior problems or exacerbate existing learning and behavior
problems. The children of women who are exposed to lead before or during pregnancy can have
increased risk of these adverse health effects. Adults can have increased risks of heart disease,
high blood pressure, kidney or nervous system problems.

Service Line Inventory
In 2024, our water system was required to complete an inventory of service line materials to
determine whether any service lines connected to the distribution system are made of lead
material. The service line inventory is available upon request, please contact us for more
information.

Violations
Our water system did not incur any drinking water violations during the calendar year of 2024.
Water sampling results show no violations for EPA Well # 1 and 2, and no violations were incurred
from our ODEQ Well #3.

Water Quality Data Tables
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 were detected during the calendar year (2024) 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.

2024 Detected Regulated Contaminants
Highest
MCLG MCL,
Range
Detect In
Contaminants
or
TT, or
Your
MRDLG MRDL
Water Low High

Sample
Date

Violation

Typical Source

No

Decay of natural and manmade deposits. The EPA
considers 50 pCi/L to be the
level of concern for Beta
particles.

Radioactive Contaminants
Beta/photon
emitters
(pCi/L)

0

50

1.88

N/A

N/A

2021

Radium
(combined
0
5
0.72
N/A
N/A
2021
No
Erosion of natural deposits
226/228)
(pCi/L)
Secondary Contaminants.
(No Federal Maximum Contaminant Level (MCL) has been Established)
Sodium (NR)
(ppm)

-

N/A

N/A

2023

No

Naturally present in the
environment

4.0 0.30 Avg 0.01

0.55

2024

No

Water additive to control
growth of microbes

-

12.4

Disinfectants
Chlorine
(ppm)

< 4.0

Contaminants ALG

Your
# Samples
Range Sample
Exceeds
AL Water (90th
Exceeding
Low High Date
AL
percentile)
AL

Typical Source

Inorganic Contaminants (Lead and Copper)
Copper –
90th
percentile
(ppm)
Lead – 90th
percentile
(ppb)

1.3

0

1.3

0.05

ND 0.06

2022

0

No

15

ND

ND

2022

0

No

ND

Corrosion of
household
plumbing systems;
Erosion of natural
deposits
Corrosion of
household
plumbing systems;
Erosion of natural
deposits

The samples below were collected from the entry point of Well #3 (OK2005883) that is
regulated by the Oklahoma Department of Environment Quality (ODEQ) during the same period.
This well supplies water to our EPA regulated water system. The below contaminants were
detected.

Contaminants

MCLG
or
MRDLG

MCL,
TT, or
MRDL

Highest
Range
Detect In
Your Water Low High

Sample
Violation
Date

Typical Source

Radioactive Contaminants
Radium
(combined
226/228)
(pCi/L)
Gross Alpha,
excl. Radon
and U (pCi/L)
Gross Beta
Particle Activity
(pCi/L)

0

5

3.5

NA

NA

8/09/2023

No

Erosion of natural deposits

0

15

2.2

NA

NA

8/09/2023

No

Erosion of natural deposits

0

50

1.95

NA

NA

8/09/2023

No

Decay of natural and manmade deposits.

Inorganic Contaminants
Barium (ppm)

2

2

0.008

0.008 0.008 8/09/2023

No

Fluoride (ppm)

4

4

0.36

0.36

No

Inorganic
Contaminants Monitoring
90th
Range
Unit
(Lead and
Period Percentile (low/high)
Copper
Copper, Free

2020 2022

Lead

2020 2022

0.36 8/09/2023

AL

Discharge of drilling
wastes; Discharge from
metal refineries; Erosion of
natural deposits
Natural deposits: Water
additive which promotes
strong teeth.

Sites
Violation Typical Source
over AL

0.06

ND –
0.100

ppm

1.3

0

No

Corrosion of household
plumbing systems; Erosion
of natural deposits

ND

ND

ppb

15

0

No

Corrosion of household
plumbing systems; Erosion
of natural deposits

RAA Sample
MPA
MPA Unit
RAA
Violation
Disinfectants
Unit Dates
Chlorine/Chlo
Water additive to control
7/1/24–
0.88
mg/L
0.6
mg/L
No
7/31/24
ramines
growth of microbes
Secondary Contaminants (Non-Health Based Contaminants) No Federal Maximum Contaminant Level
(MCL) has been Established.
Highest
Detect in Range
Sample
Contaminant
Typical Source
Your
(low/high) Date
Water
Sodium (mg/L)
11
11
8/09/2023 Naturally present in the environment

Unit Descriptions
Term

Definition

ppm
ppb
pCi/L
NA
ND

ppm: parts per million, or milligrams per liter (mg/L)
ppb: parts per billion, or micrograms per liter (µg/L)
pCi/L: picocuries per liter (a measure of radioactivity)
NA: Not applicable
ND: Not detected

Important Drinking Water Definitions
Term
RAA
MCLG
MCL
TT
AL
ALG

Definition
Running Annual Average: an average of sample results obtained over the most current
12 months and used to determine compliance with MCLs.
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.
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.
Treatment Technique: A required process intended to reduce the level of a contaminant
in drinking water.
Action Level: The concentration of a contaminant which, if exceeded, triggers treatment
or other requirements which a water system must follow.
Action Level Goal: The level of a contaminant in drinking water below which there is no
known or expected risk to health. ALGs allow for a margin of safety.

NR

Not Regulated, but monitoring is highly recommended

Variances and
Exemptions

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

MRDL

MPA

Monitoring Period Average: An average of sample results obtained during a defined time
frame. Common examples of monitoring periods are monthly, quarterly, and yearly.

90th Percentile

90th Percentile: A value at which 90% of all samples collected tested at, or below this
value

For more information please contact:
Contact Name: Kathleen Welch
Address: 8 Turtle Drive
Wyandotte, OK 74370
Phone: 918-678-6335

Consumer Confidence Report – 2025 Covering Calendar Year – 2024
WYANDOTTE TRIBE OF OKLAHOMA OK2005883

This report is a snapshot of the quality of the water that we provided last year.
Included are the details about where your water comes from, what it contains, and
how it compares to Environmental Protection Agency (EPA) and state standards.
We are committed to providing you with information because informed customers
are our best allies.
For access to the WYANDOTTE TRIBE OF OKLAHOMA service line inventory,
or if you would like to be actively involved in the decision-making processes that
affect drinking water quality, please call WYANDOTTE TRIBE OF OKLAHOMA
at 918-678-2297.
Your water comes from 1 Ground Water Well(s):
Some people may be more vulnerable to contaminants in drinking water than the
general population. Immuno-compromised persons such as those 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 guidelines
on appropriate means to lessen the risk of infection by Cryptosporidium and other
microbial contaminants are available from the Safe Drinking Water Hotline (800426-4791).
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 EPA’s
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. Please contact us to obtain
more information about a source water assessment and its availability.
Contaminants that may be present in source water before we treat it include:
Microbial contaminants, such as viruses and bacteria, which may come from
sewage treatment plants, septic systems, livestock operations and wildlife.
Inorganic contaminants, such as salts and metals, which can be naturallyoccurring 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
storm water run-off, agriculture, and residential users.
Radioactive contaminants, which can be naturally occurring or the result of mining
activity.
Organic contaminants, including synthetic and volatile organic chemicals, which
are by-products of industrial processes and petroleum production, and also come
from gas stations, urban storm water run-off, and septic systems.
In order to ensure that tap water is safe to drink, EPA prescribes regulations which
limits the amount of certain contaminants in water provided by public water
systems. We treat our water according to EPA’s regulations. Food and Drug
Administration regulations establish limits for contaminants in bottled water, which
must provide the same protection for public health.
Our water system is required to test a minimum of 1 samples per month in
accordance with the Total Coliform Rule for microbiological contaminants.

Coliform bacteria are usually harmless, but their presence in water can be an
indication of disease-causing bacteria. When coliform bacteria are found, special
follow-up tests are done to determine if harmful bacteria are present in the water
supply. If this limit is exceeded, the water supplier must notify the public.
Water Quality Data
The following tables list all of the drinking water contaminants which were
detected during the 2024 calendar year. The presence of these contaminants
does not necessarily indicate the water poses a health risk. Unless noted, the
data presented in this table is from the testing done January 1- December 31,
2024. The state requires us to monitor for certain contaminants less than once
per year because the concentrations of these contaminants are not expected to
vary significantly from year to year. Some of the data, though representative of
the water quality, is more than one year old.
Terms & Abbreviations
Maximum Contaminant Level Goal (MCLG): the “Goal” is the level of a
contaminant in drinking water below which there is no known or expected risk to
human health. MCLGs allow for a margin of safety.
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.
Secondary Maximum Contaminant Level (SMCL): recommended level for a
contaminant that is not regulated and has no MCL.
Action Level (AL): the concentration of a contaminant that, if exceeded, triggers
treatment or other requirements.
Treatment Technique (TT): a required process intended to reduce levels of a
contaminant in drinking water.
Maximum Residual Disinfectant Level (MRDL): 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.
Non-Detects (ND): lab analysis indicates that the contaminant is not present.
Parts per Million (ppm) or milligrams per liter (mg/l)
Parts per Billion (ppb) or micrograms per liter (µg/l)
Picocuries per Liter (pCi/L): a measure of the radioactivity in water.
Millirems per Year (mrem/yr): measure of radiation absorbed by the body.
Monitoring Period Average (MPA): An average of sample results obtained
during a defined time frame, common examples of monitoring periods are
monthly, quarterly and yearly.
Nephelometric Turbidity Unit (NTU): a measure of the clarity of water. Turbidity
in excess of 5 NTU is just noticeable to the average person. Turbidity is not
regulated for groundwater systems.
Running Annual Average (RAA): an average of sample results obtained over
the most current 12 months and used to determine compliance with MCLs.
Locational Running Annual Average (LRAA): Average of sample analytical
results for samples taken at a particular monitoring location during the previous
four calendar quarters.
Monitoring and Reporting (M/R): a violation for failure to conduct regular
monitoring of drinking water quality or to submit monitoring results in a timely
fashion.
Operational Evaluation Level (OEL): a report triggered by the disinfection byproducts rule.

Testing Results for: WYANDOTTE TRIBE OF OKLAHOMA
Please Note: Because of sampling schedules, results may be older than 1 year

Regulated Contaminants

Collection
Date

Highest
Value

Range
(low/high)

Unit

MCL

MCLG

BARIUM

8/9/2023

0.008

0.008

ppm

2

2

FLUORIDE

8/9/2023

0.36

0.36

ppm

4

4

Range (low/high)

Unit

AL

Sites
Over AL

Lead and Copper

Monitoring
Period

90th
Percentile

Typical Source
Discharge of drilling wastes; Discharge from
metal refineries; Erosion of natural deposits.
Natural deposits; Water additive which
promotes strong teeth.

Typical Source

Corrosion of household plumbing systems;
Erosion of natural deposits; Leaching from wood
preservatives.
Corrosion of household plumbing systems;
LEAD
2020 - 2022
0
ppb
15
0
Erosion of natural deposits.
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. Your water system 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 wis h 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 http://www.epa.gov/safewater/lead.
COPPER, FREE

2020 - 2022

0.06

Chlorine/Chloramines Maximum
Disinfection Level
07/01/2024 - 07/31/2024
Radiological
Contaminants
COMBINED
RADIUM (-226 &
-228)
GROSS ALPHA,
EXCL. RADON &
U
GROSS BETA
PARTICLE
ACTIVITY

0 - 0.1

ppm

1.3

0

MPA

MPA Units

RAA

RAA Units

0.88

MG/L

0.6

MG/L

Collection Date

Highest Value

Range
(low/high)

Unit

MCL

MCLG

Typical Source

8/9/2023

3.5

3.5

pCi/L

5

0

Erosion of natural
deposits

8/9/2023

2.2

2.2

pCi/L

15

0

Erosion of natural
deposits

8/9/2023

1.95

1.95

pCi/L

50

0

Decay of natural
and man-made
deposits

Collection Date

Highest Value

Range (low/high)

Unit

8/9/2023

11

11

MG/L

Secondary Contaminants-Non Health Based
Contaminants-No Federal Maximum
Contaminant Level (MCL) Established.
SODIUM

During the 2024 calendar year, we had the below noted violation(s) of drinking water regulations.
Compliance Period
Analyte
No Violations Occurred in the Calendar Year of 2024
Water System
Type
No Violations Occurred in the Calendar Year of 2024

Comments
Category

Analyte

Compliance Period

SMCL

---

Source: Frix Law Library, https://www.frixlaw.com/law-library/documents/tribal%3Awyandotte%3A40aecb0ed6437928. Public record. Not legal advice.
