Corning Water Works

2013 Annual Drinking Water Quality Report

 

We're pleased to present to you this year's Annual Drinking Water Quality Report. This report is designed to inform you about the quality water and services we deliver to you every day.  Our goal is to provide you with a safe and dependable supply of drinking water, and we want you to understand, and be involved in, the efforts we make to continually improve the water treatment process and protect our water resources. 

 

Where Does Our Drinking Water Come From?

The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells.  Our source of water is one well that pumps from the Quaternary System Aquifer.

 

How Safe Is The Source Of Our Drinking Water?

The Arkansas Department of Health has completed a Source Water Vulnerability Assessment for Corning Water Works.  The assessment summarizes the potential for contamination of our source of drinking water and can be used as a basis for developing a source water protection plan.  Based on the various criteria of the assessment, our water source has been determined to have a low susceptibility to contamination.  You may request a summary of the Source Water Vulnerability Assessment from our office.

 

What Contaminants Can Be In Our Drinking Water?

As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases, can pick up substances resulting from the presence of animals or from human activity.  Contaminants that may be present in source water include: Microbial contaminants such as viruses and bacteria, which 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; Radioactive contaminants which can be naturally occurring or be the result of oil and gas production and mining activities.

 

In order to assure tap water is safe to drink, EPA has regulations which 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.

 

Am I at Risk?

All 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 the water poses a health risk. However, 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 small amounts of contamination. These people should seek advice about drinking water from their health care providers. 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.  In addition, EPA/CDC guidelines on appropriate means to lessen the risk of infection by microbiological contaminants are also available from the Safe Drinking Water Hotline. 

 

Lead and Drinking Water

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.

 


 

 

How Can I Learn More About Our Drinking Water?

If you have any questions about this report or concerning your water utility, please contact Tracy Robinson, Water Superintendent, at 870-323-2258.  We want our valued customers to be informed about their water utility.  If you want to learn more, please attend any of our regularly scheduled meetings.  They are held on the second Tuesday of each month at 6:30 PM at City Hall.

 

TEST RESULTS

We routinely monitor for constituents in your drinking water according to Federal and State laws. The test results table shows the results of our monitoring for the period of January 1st to December 31st, 2013.  In the table you might find terms and abbreviations you are not familiar with. To help you better understand these terms we've provided the following definitions:

 

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

Maximum Contaminant Level (MCL) - 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.

Maximum Contaminant Level Goal (MCLG) – unenforceable public health 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 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.

Maximum Residual Disinfectant Level Goal (MRDLG) - 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

Parts per billion (ppb) - a unit of measurement for detected levels of contaminants in drinking water.  One part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000.

Parts per million (ppm) – a unit of measurement for detected levels of contaminants in drinking water.  One part per million corresponds to one minute in two years or a single penny in $10,000.

 

MICROBIOLOGICAL CONTAMINANTS

Contaminant

Violation

Y/N

Level Detected

Unit

MCLG

(Public Health Goal)

MCL

(Allowable Level)

Major Sources in Drinking Water

Total Coliform Bacteria

(Corning)

Y

1 Positive sample in May and 1 Positive resample in June

Present

0

1 positive sample per month

Naturally present in the environment

¨        Coliforms are bacteria that are naturally present in the environment and are used as an indicator that other, potentially harmful, bacteria may be present. Coliforms were found in more samples than allowed and this was a warning of potential problems.

RADIOACTIVE CONTAMINANTS

Contaminant

Violation

Y/N

Level Detected

Unit

MCLG

(Public Health Goal)

MCL

(Allowable Level)

Major Sources in Drinking Water

Combined Radium

(226 + 228)

N

Average: 6.1

Range: 3.6 – 7.4

pCi/L

0

5

Erosion of natural deposits

 

Alpha emitters

N

Average: 5.5

Range: 5.1 – 6.0

pCi/L

0

15

LEAD AND COPPER TAP MONITORING

Contaminant

Number of Sites over Action Level

90th Percentile

Result

Unit

Action Level

Major Sources in Drinking Water

Lead

(Corning)

2

0.009

ppm

0.015

Corrosion from household plumbing systems; erosion of natural deposits

Copper

(Corning)

0

<0.20

ppm

1.3

¨        We are on a reduced monitoring schedule and required to sample once every three years for lead and copper at the customers’ taps.  The results above are from our last monitoring period in 2013.  Our next required monitoring period is in 2016.

 

¨        Infants and children who drink water containing lead in excess of the action level could experience delays in their physical or mental development. Children could show slight deficits in attention span and learning abilities. Adults who drink this water over many years could develop kidney problems or high blood pressure.

REGULATED DISINFECTANTS

Disinfectant

Violation

Y/N

Level Detected

Unit

MRDLG

(Public Health Goal)

MRDL

(Allowable Level)

Major Sources in Drinking Water

Chlorine

(Corning)

N

Average: 0.52

Range: 0.1 – 2.1

ppm

4

4

Water additive used to control microbes


 

BY-PRODUCTS OF DRINKING WATER DISINFECTION

Contaminant

Violation

Y/N

Level Detected

Unit

MCLG

(Public Health Goal)

MCL

(Allowable Level)

HAA5 [Haloacetic Acids]

(Corning)

N

2

ppb

0

60

TTHM [Total Trihalomethanes]

(Corning)

N

7

ppb

NA

80

UNREGULATED CONTAMINANTS

Contaminant

Level Detected

Unit

MCLG

(Public Health Goal)

Major Sources in Drinking Water

Bromoform

(Corning)

Average: 7.35

Range: 0 – 14.7

ppb

0

By-product of drinking water disinfection

Dibromochloromethane

(Corning)

Average: 1.41

Range: 0 – 2.81

ppb

60

¨        Unregulated contaminants are those for which EPA has not established drinking water standards.  The purpose of unregulated contaminant monitoring is to assist EPA in determining the occurrence of unregulated contaminants in drinking water and whether future regulation is warranted.  MCLs (Maximum Contaminant Levels) and MCLGs (Maximum Contaminant Level Goals) have not been established for all unregulated contaminants.

 

VIOLATIONS – Corning Waterworks

TYPE: Bacteriological Monitoring

FROM:

TO:

CORRECTIVE ACTION:

Exceeded the Maximum Contaminant Level (MCL) for coliform bacteria

5/1/2013

6/1/2013

5/31/2013

6/30/2013

Adjusted the level of disinfectant and resumed bacteriological monitoring as required by state and federal regulations

Public Notice – [Failed to provide Public Notice regarding elevated MCL for Coliform bacteria]

8/1/2013

Present

Failed to provide notice to customers concerning Coliform bacteria exceedance

TYPE: Annual Drinking Water Quality Report

 

 

CORRECTIVE ACTION:

Consumer Confidence Report (CCR) - Failure to provide annual water quality report to customers

7/1/2013

7/11/2013

 Report has been made available to public

Consumer Confidence Report (CCR) - Failure to provide the state with certification of distribution of the annual water quality report

10/1/2013

10/2/2013

 Provided the state with certification of distribution of the annual water quality report

 

 

PUBLIC NOTICE

 

 

The Corning Waterworks is a public water system subject to regulation under the federal Safe Drinking Water Act. Those regulations require the notification of customers whenever a violation occurs, and is the basis for this notice.  This water system failed to meet the maximum contaminant level for total coliform in May, 2013.

                                                                                                           

The United States Environmental Protection Agency (EPA) sets drinking water standards and has determined that the presence of total coliforms is a possible health concern.  Total coliforms are common in the environment and are generally not harmful themselves.  The presence of these bacteria in drinking water, however, generally is a result of a problem with water treatment or the pipes which distribute the water, and indicates that the water may be contaminated with organisms that can cause disease.  Disease symptoms may include diarrhea, cramps, nausea, and possibly jaundice, and any associated headaches and fatigue.  These symptoms, however, are not just associated with disease causing organisms in drinking water, but also may be caused by a number of factors other than your drinking water.  EPA has set an enforceable drinking water standard for total coliforms to reduce the risk of these adverse health effects.  Under this standard, no more than 5 percent of the samples collected during a month can contain these bacteria, except that systems collecting fewer than 40 samples per month that have one total coliform positive sample per month are not violating the standard.  Drinking water which meets this standard is usually not associated with a health risk from disease causing bacteria and should be considered safe.

 

Failure to meet the total coliform standard does not mean that the water is unsafe or that alternate sources of water should be used.  The water system has to notify the public of the Coliform MCL violation.

 

Should you have any questions concerning this notice, contact the water system at 870-323-2258 or the Engineering Section of the Department of Health at 501-661-2623.

 

This institution is an equal opportunity provider and employer.