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2015 Annual Drinking Water Quality Report 

Big Bend Water Authority

PWSID#: 2621102

We're pleased to present to you this year's Annual Water Quality Report.  This report is designed to inform you about the quality water and services we deliver to you every day.  Our constant goal is to provide you with a safe and dependable supply of drinking water.  We want you to understand the efforts we make to continually improve the water treatment process and protect our water resources.  We are committed to ensuring the quality of your water. Our water sources are groundwater from 2 wells drawing from the Floridan Aquifer. We were able to bring our 2nd well online in January 2014 to increase our capacity to serve our customers. We treat your water with filtration using aluminum sulfate and feed a polyphosphate for corrosion control and chlorinate for disinfection.

 

In 2015 the Department of Environmental Protection performed a Source Water Assessment on our system.  The assessment was conducted to provide information about any potential sources of contamination in the vicinity of our wells.  There are two (2) potential source of contamination identified for this system with a low susceptibility level.  The assessment results are available on the FDEP Source Water Assessment and Protection Program website at www.dep.state.fl.us/swapp.

This report shows our water quality results and what they mean.

 

If you have any questions about this report or concerning your water utility, please contact: Garrett Dodd at our office (352) 498-3576.  We encourage 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 last Thursday of each month at 6:00 PM at the Steinhatchee Water Plant.

 

The Big Bend Water Authority routinely monitors for contaminants in your drinking water according to Federal and State laws, rules, and regulations.  Except where indicated otherwise, this report is based on the results of our monitoring for the period of January 1 to December 31, 2015.  Data obtained before January 1, 2015, and presented in this report are from the most recent testing done in accordance with the laws, rules, and regulations.

 

In the table below, you may find unfamiliar terms and abbreviations.  To help you better understand these terms we've provided the following definitions:

 

Maximum Contaminant Level or 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 or MCLG: 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.

 

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

 

Maximum residual disinfectant level or 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 or 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.

 

Parts per billion (ppb) or Micrograms per liter (µg/l) – one part by weight of analyte to 1 billion parts by weight of the water sample.

 

Parts per million (ppm) or Milligrams per liter (mg/l) – one part by weight of analyte to 1 million parts by weight of the water sample.

 

Picocurie per liter (pCi/L) - measure of the radioactivity in water.

 

Nephelometric Turbidity Unit (NTU) -  measure of the clarity of the water.  Turbidity in excess of 5 NTU is just noticeable to the average person.

 

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

 

 

Results Table


Results in the Level Detected column for radioactive contaminants, inorganic contaminants, synthetic organic contaminants including pesticides and herbicides, and volatile organic contaminants are the highest average at any of the sampling points or the highest detected level at any sampling point, depending on the sampling frequency.

 

 

Contaminant and Unit of Measurement

Dates of sampling (mo./yr.)

MCL Violation Y/N

Level Detected                                                                                                                                                                                                                                                                                                                                                                              

Range of Results

MCLG

MCL

Likely Source of Contamination

 

Radioactive Contaminants

 

 

  Radium 226 + 228 or combined radium (pCi/L)

2/2015

N

1.5

ND-1.5

0

5

Erosion of natural deposits

 

 

Contaminant and Unit of Measurement

Dates of sampling (mo./yr.)

MCL Violation Y/N

Level Detected

Range of Results

MCLG

MCL

Likely Source of Contamination

 

Inorganic Contaminants

 

 

Barium (ppm)

2/2015

N

0.018

N/A

2

2

Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits

 

 

 Fluoride (ppm)

2/2015

N

0.42

N/A

4

4.0

Erosion of natural deposits; discharge from fertilizer and aluminum factories.  Water additive which promotes strong teeth when at the optimum level of 0.7  ppm

 

 

Sodium (ppm)

2/2015

N

20

N/A

N/A

160

Salt water intrusion, leaching from soil

 

Stage 1 Disinfectants and Disinfection By-Products

 

For bromate, chloramines, or chlorine, the level detected is the highest running annual average (RAA), computed quarterly, of monthly averages of all samples collected.  The range of results is the range of results of all the individual samples collected during the past year.

 

Disinfectant or Contaminant and Unit of Measurement

Dates of sampling (mo./yr.)

MCL or MRDL Violation Y/N

Level Detected

Range of Results

MCLG or MRDLG

MCL or MRDL

Likely Source of Contamination

 

 Chlorine (ppm)

Monthly

N

0.92

0.45-2.11

MRDLG = 4

MRDL = 4.0

Water additive used to control microbes

 

 

Stage 2 Disinfection By-Products

Contaminant and Unit of Measurement

Dates of sampling (mo./yr.)

MCL Violation Y/N

Level Detected

Range of Results

MCLG

MCL

Likely Source of Contamination

 

Haloacetic Acids (five) (HAA5) (ppb)

Quarterly

Y

59.46

47.29-79.39

NA

MCL = 60

By-product of drinking water disinfection

 

TTHM [Total trihalomethanes] (ppb)

Quarterly

Y

100.12

61.95-115.29

NA

MCL = 80

By-product of drinking water disinfection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contaminant and Unit of Measurement

Dates of sampling (mo./yr.)

AL Exceeded

(Y/N)

90th Percentile Result

No. of sampling sites exceeding the AL

MCLG

AL (Action Level)

Likely Source of Contamination

 

Lead and Copper (Tap Water)

 

Copper (tap water) (ppm)

10/2015

N

0.0436

0

1.3

1.3

Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives

                                                   

 

 

 

We at the Big Bend Water Authority work around the clock to provide top quality water to every tap. We ask that all of our customers help us protect our water sources, which are the heart of our community, our way of life and our children’s future.

 

 

 

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.  Big Bend Water Authority 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.

 

 

 

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.

 

 

 

We constantly monitor for various contaminants in the water supply to meet all regulatory requirements. Our water system was in violation of federal and state water quality standards for failing to pull the required 3 samples for Coliform in August 2015 and only pulled 2 samples, which did not detect Coliform. Our water system was also in violation for total trihalomethanes (TTHMs) and haloacetic acids (HAAs) during April- June, Jul-Sep and Oct-Dec 2015. The levels of TTHMs and HAAs are shown in the Test Results Table above.  The by-products include total trihalomethanes (TTHMs) and Haloacetic acids (HAAs). Drinking water containing these by-products in excess of the MCL may lead to adverse health effects, liver or kidney problems, or nervous systems effects, and may lead to an increased risk of getting cancer.

 

 

 

 

 

 

 

Contaminants that may be present in source water include:

 

 

 

(A)          Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife.

 

(B)          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.

 

(C)         Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runoff, and residential uses.

 

(D)         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.

 

(E)          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, the EPA prescribes regulations, which limit the amount of certain contaminants in water provided by public water systems.  The Food and Drug Administration (FDA) regulations establish limits for contaminants in bottled water, which must provide the same protection for public health.

 

 

 

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.  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.

 

 

 

Thank you for allowing us to continue providing your family with clean, quality water this year. In order to maintain a safe and dependable water supply, we sometimes need to make improvements that will benefit all of our customers. These improvements are sometimes reflected as rate structure adjustments. Thank you for understanding.

 

 

 

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/CDC guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbiological contaminants are available from the Safe Drinking Water Hotline (800-426-4791).

 

 

 

We at Big Bend Water Authority would like you to understand the efforts we make to continually improve the water treatment process and protect our water resources.  We are committed to insuring the quality of your water.  If you have any questions or concerns about the information provided, please feel free to call any of the numbers listed.