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Posted on: July 3, 2017

2016 Consumer Confidence Report

2016 Consumer Confidence Report

Spanish (Espanol)

Este informe contiene informacion muy importante sobre la calidad de su agua beber. Traduscalo o hable con alguien que lo entienda bien.

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?

Our water came from Atoka lake.

Source water assessment and its availability

Drinking water. including bottle 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 at (800)426-4791.

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?

Atoka Municipal Authority meetings are held at 7:00 pm on the 1st and 3rd Mondays of each month, excluding holidays, in the Atoka City Hall Council Chambers at 353 East A Street.

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. Atoka PWS OK-1010401 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 http://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.

Total Organic Carbon (TOC) Explanation

The percentage of Total Organic Carbon (TOC) removal was measured each month and the system met all TOC removal requirements set, unless a TOC Violation is noted in the violation section.



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

2

NA

NA

2014

No

Water additive used to control microbes

Chlorite (ppm)

.8

1

.8

NA

NA

2016

No

By-product of drinking water disinfection

Haloacetic Acids (HAA5) (ppb)

NA

60

46

NA

NA

2016

No

By-product of drinking water chlorination

TTHMs [Total Trihalomethanes] (ppb)

NA

80

64.6

NA

NA

2016

No

By-product of drinking water disinfection

Total Organic Carbon (% Removal)

NA

TT

NA

NA

NA

2016

No

Naturally present in the environment

Inorganic Contaminants

Arsenic (ppb)

0

10

1

NA

NA

2016

No

Erosion of natural deposits; Runoff from orchards; Runoff from glass and electronics production wastes

Copper - source water (ppm)

NA


.184

NA

NA

2016

No

Corrosion of household plumbing systems; Erosion of natural deposits; Leaching from wood preservation; 

Fluoride (ppm)

4

4

.92

NA

NA

2014

No

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

Lead - source water (ppm)

NA


12.3

NA

NA

2016

No

Corrosion of household plumbing systems; Erosion of natural deposits

Nitrate [measured as Nitrogen] (ppm)

10

10

.14

NA

NA

2016

No

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

Microbiological Contaminants

Total Coliform (TCR) (positive samples/month)

0

1

1

NA

NA

2014

No

Naturally present in the environment

Turbidity (NTU)

NA

1.0

96

NA

NA

2016

No

Soil runoff

96% of the samples were below the TT value of 1. A value less than 95% constitutes a TT violation. The highest single measurement was .3. Any measurement in excess of 5 is a violation unless otherwise approved by the state.

Radioactive Contaminants

Alpha emitters (pCi/L)

0

15

1.74

NA

NA

2013

No

Erosion of natural deposits

Beta/photon emitters (mrem/yr)

0

4

3.21

NA

NA

2013

No

Decay of natural and man-made deposits.


 




Unit Descriptions

Term

Definition

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)

mrem/yr

mrem/yr: millirems per year (a measure of radiation absorbed by the body)

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.

positive samples/month

positive samples/month: Number of samples taken monthly that were found to be positive

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:


Contact Name: Edward R. Eastwood
Address: 353 East A Street
Atoka, OK 74525
Phone: 580-889-2362


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