Annual Drinking Water Report 2017 - Orange County, Florida · Orange County Utilities is pleased to present its 2017 Annual Drinking Water Report, ... visit Orange County’s website

AnnualDrinkingWaterReport2017

Orange County Utilities is pleased to present its 2017 Annual Drinking Water Report, designed to inform you about the quality of the water we deliver every day. It is our pleasure to report that the drinking water we produce meets or exceeds all federal and state water quality regulations.

The water quality information in this report is divided by service areas. Use the maps to determine your water service area and then click on the service area header to go directly to that specific report. You are also encouraged to review all the drinking water reports. To request a printed copy of this report, please contact the Orange County Utilities Water Division at 407-254-9850.

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436

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ORANGE

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ORANGE

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ORANGE

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ORANGE

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ORANGE

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ORANGE

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ORANGE

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ORANGE

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ORANGE

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ORANGE

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ORANGE

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ORANGE

COUNTY545

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COUNTY420


417

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Orlando

Bay Lake

Ocoee

Apopka

Winter Park

Maitland

Belle Isle

Winter Garden

Lake Buena Vista

Eatonville

Windermere

Edgewood

Oakland

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OSCEOLA COUNTY

SEMINOLE COUNTY

LAK

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ORANGE COUNTY UTILITIES EASTERN REGIONAL, SOUTHERN REGIONAL, AND WESTERN REGIONAL WATER SERVICE AREAS

SEMINOLE COUNTY

Legend

Eastern

Southern

Western

1 0 10.5 Miles

Western Regional Water Service Area

Southern Regional Water Service Area

Eastern Regional Water Service Area

Mccoy Road

Jetport Drive

Dae

twyl

er D

rive

State Road 528

E State Road 528

Flowertree Road

Trad

epor

t Driv

e

Winona Drive

Bear Road

Merryweather Drive

Rampart Drive

Benr

us S

treet

Prairie Fox Lane

Via Flora

His

pani

a A

venu

e

War

ing

Ave

nue

Trentwood Boulevard

Bogg

y C

reek

Roa

d

1st Street

Dap

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Aven

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State Road 528 Ramp E

Win

d W

illow

Roa

d

Arle

ne A

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Sim

ms

Aven

ue

State Road 528 On Ramp E

Le Mesa Street

State Road 528 Off Ramp W

Monarch Drive

Mara Vista Court

Col

lings

woo

d D

rive

Burb

ank

Aven

ue

Colleen Drive

Stafford Drive

State Road 528 On Ramp W

Holiday Isle Drive

E State Road 528

Trentwood Boulevard

Mccoy Road

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ORANGE COUNTY UTILITIES DAETWYLER SHORES WATER SERVICE AREA Legend

Daetwyler Shores

190 0 19095 Feet

Daetwyler Shores Boundary

State Road 528State Road 528

Laker Conway

Vicinity Map

W Colonial Drive

Floridas Turnpike

4th

Stre

et

Largovista Drive

Floridas Turnpike On Ramp

Orionvista Way

John

s La

ndin

g W

ay

Lake Johns Circle

S Tu

bb S

treet

Hic

kman

Driv

e

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ORANGE COUNTY UTILITIES LAKE JOHN SHORES WATER SERVICE AREA Legend

Lake John Shores

140 0 14070 Feet

Lake John Shores Boundary

Laker Conway

Vicinity Map

Fullers Cross Road

Mar

kel D

rive

Coluso Drive

Sadie Lane

Chase Drive

Glenmeadow Drive

Sprin

g R

idge

Circ

le

Teacup Springs CourtSp

ring

Rid

ge D

rive

Westcliffe Drive

Gle

nvie

w C

ircle

Island Pointe Drive

Monte Vista Way

Gle

nvie

w D

rive

Garden Heights Drive

Vic

Kay

Cou

rt

Burla

nd C

ircle

East

Spr

ing

Rid

ge C

ircle

Teagarden Court

Garden C

ircle Gle

nvie

w C

ourt

Mar

kel D

rive

Revised: 04/17/2017

Magnolia Woods

W Colonial Drive

Beulah Road

Gill

ard

Aven

ue

Partl

ow D

rive

Gre

en F

ores

t Cou

rt

Palm Avenue

Myrtle Avenue

Magnolia Street

ORANGE COUNTY UTILITIES MAGNOLIA WOODS AND PARTLOW ACRES WATER SERVICE AREAS Legend

Water Service Area Boundaries

Lake Apopka

Partlow Acres

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Vicinity MapVicinity Map

Map #1 Map #2

0 200 400100 Feet 0 100 20050 Feet


Eastern RegionalWater System

Message from the MayorDear Valued Customers:

As Mayor of Orange County, it is my pleasure to present this report to you about Orange County Utilities’ drinking water.

The water tested by our Utilities Department meets or exceeds the standards set forth by the Florida Department of Environmental Protection and the United States Environmental Protection Agency. This report is an opportunity to share with you everything that our local water supply does for our community including public health protection, fire protection, and quality of life.

The efficient use of water resources is a key component in maintaining a strong and healthy environment. While this is part of Orange County’s overall sustainability plan, it is also necessary to ensure our county remains a great place to live, work, and raise a family.

We will continue to work hard to protect our drinking water supplies and make sure they are plentiful and safe for generations to come.

Sincerely,

Teresa JacobsOrange County Mayor

Teresa JacobsMayor

Betsy VanderLeyDistrict 1 Commissioner

Bryan NelsonDistrict 2 Commissioner

Pete ClarkeDistrict 3 Commissioner

Jennifer ThompsonDistrict 4 Commissioner

Emily BonillaDistrict 5 Commissioner

Victoria P. SiplinDistrict 6 Commissioner

Community Involvement Is Encouraged

Orange County Utilities is a department of Orange County Government and is governed by the Orange County Board of County Commissioners. If you want to learn more about Orange County Government, please attend

any of the regularly scheduled Orange County Board of County Commissioners meetings. The board meets on most Tuesdays, beginning at 9:00 a.m. The meetings are conducted in the Commission Chambers located on the first floor of the Orange County Administration Center at 201 S. Rosalind Avenue, Orlando, and are open to the public. For a meeting agenda or to watch a board meeting online, visit Orange County’s website at www.ocfl.net.

In accordance with the Americans with Disabilities Act (ADA), if any person with a disability as defined by the ADA needs special accommodation to participate in these proceedings, then not later than two (2) business days prior to the proceeding, he or she should contact the Orange County Communications Division at 407-836-5517.

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About Your Water Utility

Orange County Utilities’ water system continues to provide reliable service to a growing number of customers in Orange County. In 2016, the Orange County Utilities Water Division provided quality water service to over 145,000

accounts, serving a population of more than 493,500. We produced 21.9 billion gallons of water in our 3 regional water facilities and 8 smaller facilities. The water was distributed through 1,846 miles of water mains throughout the 451 square mile service area.

Well pumps at Orange County’s water supply facilities draw water from a natural underground reservoir called the Floridan Aquifer. After the sulfide is removed, it is treated with chlorine, fluoride is added, and the water is pumped to a finished water tank, awaiting distribution to residential, commercial, and industrial customers.

Your Water Supply Source

Beneath Orange County lies a freshwater reservoir known as the Floridan Aquifer. The groundwater

from this aquifer is of consistently high quality and is used as a source of potable water for our systems and other systems in this area. It is primarily fed by rainwater that is filtered through hundreds of feet of sand and rock in a natural filtering process. Because of its high quality, the groundwater we use needs little or no treatment other than disinfection and aeration to remove naturally present hydrogen sulfide.

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Microbiological Contaminants

Contaminant and Unitof Measurement

Date of Sampling(mo/yr)

MCLViolation

Y/N

Highest Monthly Percentage of

Positive Samples

Rangeof

ResultsMCLG MCL Likely Source of Contamination

Total Coliform Bacteria 01/2016 N 0.6 0-0.6 0 SeeNote A Naturally present in the environment

Radiological Contaminants


Date of Sampling

(mo/yr)

MCLViolation

Y/NLevel Detected

Rangeof


Alpha Emitters(pCi/L) 2016 N 2.2 0-2.2 0 15 Erosion of natural deposits

Radium 226 + 228(pCi/L) 2016 N 0.7 0.3-0.7 0 5 Erosion of natural deposits

Inorganic Contaminants

Arsenic (ppb) 2016 N 0.21 0.2-8.21 NA 10Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes

Barium (ppm) 10/2016 N 0.016 NA 2 2 Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits

Fluoride (ppm) 10/2016 N 0.743 NA 4 4Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories

Nitrate (as Nitrogen) (ppm) 2016 N 0.024 0.012-0.024 10 10

Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits

Sodium (ppm)1 10/2016 N 20.0 NA NA 160 Salt water intrusion; leaching from soil

Thallium (ppb) 10/2016 N 0.013 NA 0.5 2 Leaching from ore-processing sites; dischargefrom electronics, glass, and drug factories

Synthetic Organic Contaminants Including Pesticides and Herbicides

Dalapon (ppb) 10/2016 N 0.56 NA 200 200 Runoff from herbicide used on rights-of-way

Di(2ethylhexyl)phthalate (ppb) 10/2016 N 2.5 NA 0 6 Discharge from rubber and chemical factories

TTHM’s and Stage 2 Disinfectants/Disinfection By-Product (D/DBP) Parameters²

Chlorine (ppm) 2016 N 1.19 0.2-2.12 MRDLG=4 MRDL=4 Water additive used to control microbes

Haloacetic Acids (HAA5) (ppb) 2016 N 32.2 15.7-36.9 NA 60 By-product of drinking water disinfection

Total Trihalomethanes (TTHM) (ppb) 2016 N 72.2 47.1-85.2 NA 80 By-product of drinking water disinfection

Note A: For systems collecting at least 40 samples per month, presence of coliform bacteria in greater than 5% of monthly samples.

Your Water Quality Test ResultsEastern Regional Water System

3

Lead and Copper (Tap Water)



AL Exceeded Y/N

90th Percentile Result

No. of Sampling Sites Exceeding the

AL

MCLGAL

(Action Level)

Likely Source of Contamination

Copper (ppm) 06/2014 N 0.25 0 1.3 AL=1.3Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives

Lead (ppb) 06/2014 N 2.1 0 0 AL=15 Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, and solder

Understanding Your Water Quality ReportThe water distributed to the homes of our customers is regularly monitored by state-certified operators and analyzed by our laboratory to ensure compliance with state and federal drinking water standards, thus providing the highest quality water. Our commitment to water quality is reflected by more than 350,000 analyses performed during 2016, which is far above the required testing. The Orange County Utilities Water Division monitors for more than 150 substances in the drinking water supply. Orange County water systems are monitored on different cycles ranging from monthly to every three years according to state and federal laws, rules, and regulations. Except where indicated otherwise, this report is based on results of our monitoring for the period of January 1 - December 31, 2016.

Two samples during 2016 had Total Trihalomethane results of 85.2 and 82.7 ppb, which exceeds the MCL of 80 ppb. However, the system did not incur an MCL violation because all locational annual average results at all sites were at or below the MCL. Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kidneys, or central nervous system, and may have an increased risk of getting cancer.

The Table Contains:• The name of each contaminant• The unit of measurement• The highest level allowed by regulation (MCL)• The ideal goal for public health (MCLG or MRDLG)• The amount of contaminant detected and the likely source of the contaminant

Key to Abbreviations:AL - Action Level is the concentration of a contaminant that, if exceeded, triggers treatment or other requirements which a water system must follow.MCL - Maximum Contaminant Level 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.MCLG - Maximum Contaminant Level Goal is 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.MRDLG - Maximum Residual Disinfectant Level Goal is 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 is 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.

NA - Not Applicable.pCi/L - Picocuries Per Liter - Measure of the radioactivity in water.ppb - Parts Per Billion or micrograms per liter - one part by weight of analyte to 1 billion parts by weight of water sample.ppm - Parts Per Million or milligrams per liter - one part by weight of analyte to 1 million parts by weight of water sample.

Footnotes to Water Quality Test Results

1. The Florida Department of Environmental Protection (FDEP) standard for Sodium is 160 ppm. The FDEP has set the MCL for Sodium at a more stringent level than federal regulations require.

2. For the parameters monitored under the Stage 2 D/DBP regulations, the level detected is the highest locational running annual average for the samples collected: Haloacetic Acids (60 ppb) and/or TTHM (MCL 80 ppb). Range of Results is the range of results (lowest to highest) at the individual sampling sites.

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Assurance of Healthy Drinking Water

The Environmental Protection Agency (EPA) requires all public water suppliers to routinely

monitor for contaminants in the drinking water according to federal and state laws. The state allows us to monitor less than once per year because the concentrations of these contaminants do not change frequently. Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of these 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 EPA Safe Drinking Water Hotline at 800-426-4791.

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 that must provide the same protection for public health.

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.

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 for infections. These people should seek advice about drinking water from their health care providers. EPA and the Centers for Disease Control (CDC) guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbiological contaminants are available from the EPA Safe Drinking Water Hotline at 800-426-4791.

Contaminants That May Be Present in the SourceWater 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, 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.

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Some More Specific Information About 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. Orange County Utilities 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 your exposure is available from the EPA Safe Drinking Water Hotline at 800-426-4791 or at www.epa.gov/safewater/lead.

Source Water Assessment andProtection Program (SWAPP)

SWAPP stands for Source Water Assessment and Protection Program. This program is meant to ensure that your drinking water is safe, not just at the tap, but at its source. The Florida Department of Environmental Protection

(FDEP) initiated SWAPP as part of the federal Safe Drinking Water Act (SDWA). Lakes, rivers, streams, and aquifers make up the drinking water sources in Florida. These source waters can be threatened by potential contaminants such as hazardous chemicals, stormwater runoff, waste disposal sites, and underground storage tanks. It is a national priority to protect these sources and ensure safe drinking water for citizens. SWAPP was created to protect these vital resources.

FDEP completed the initial baseline study for our water systems in 2004 and updated the study in 2016. The results are posted on the SWAPP website (www.dep.state.fl.us/swapp). Since initial evaluation is based on existing databases, FDEP can only make preliminary and tentative evaluations. Changes that are reported can help update the databases and provide timely information. Community members can help by reviewing the information and reporting any discrepancies that are identified.

Orange County UtilitiesWater Wise Neighbor ProgramOrange County Utilities wants to help you become as water efficient as possible. Attend one of our classes and find out how you can implement water savings at your home. The program has no cost to the account holder and will provide water-saving devices to help you conserve water.

Email Orange County Utilities at [email protected] or call 407-254-9837 to sign up today.

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For more information concerning water quality or this report, please call the Orange County UtilitiesWater Division at 407-254-9850 (select option 1, then option 2).

Para más información, por favor llame al Departamento de Servicios Públicos del Condado de Orange y pida hablar conun representante en español. El número de teléfono es 407-254-9850 (seleccione la opción 9, luego la opción 2).

Website: www.ocfl.net • Email: [email protected]

Publication of this document is required by federal regulations 40CFR,Part 141, Subpart O and state regulations 62-550 and 62-555.

To view this report online, visitwww.ocfl.net/DrinkingWaterReport2017

2017ConservationCalendar ArtWinners


Southern RegionalWater System






Sincerely,


Teresa JacobsMayor











1








2




MCLViolation

Y/N


Positive Samples

Rangeof






MCLViolation

Y/NLevel Detected

Rangeof


Arsenic (ppb) 02/2014 N 0.77 ND-0.77 NA 10Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes

Barium (ppm) 02/2014 N 0.027 0.012-0.027 2 2 Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits

Fluoride (ppm) 02/2014 N 0.78 0.12-0.78 4 4Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories

Lead (ppb) 02/2014 N 0.78 ND-0.78 NA 15Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, and solder

Nitrate (as Nitrogen) ppm 01/2016 N 0.021 0.003-0.021 10 10 Runoff from fertilizer use; leaching from septic

tanks, sewage; erosion of natural deposits

Sodium (ppm)¹ 02/2014 N 12.0 4.9-12.0 NA 160 Salt water intrusion; leaching from soil

Thallium (ppb) 02/2014 N 0.4 ND-0.4 0.5 2 Leaching from ore-processing sites; discharge from electronics, glass, and drug factories

Synthetic Organic Contaminants Including Pesticides and Herbicides

Dalapon (ppb) 07/2016 N 0.563 NA 200 200 Runoff of herbicide used on rights-of-way


Bromate (ppb) 2016 N 5.42 4.00-6.00 MCLG=0 MCL=10 By-product of drinking water disinfection


Haloacetic Acids(HAA5) (ppb) 2016 N 41.3 23.8-48.8 NA 60 By-product of drinking water disinfection

Total Trihalomethanes(TTHM) (ppb) 2016 N 64.7 35.3-70.6 NA 80 By-product of drinking water disinfection


Your Water Quality Test ResultsSouthern Regional Water System

3



Key to Abbreviations:AL - Action Level is the concentration of a contaminant that, if exceeded, triggers treatment or other requirements which a water system must follow.MCL - Maximum Contaminant Level 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.MCLG - Maximum Contaminant Level Goal is 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.MRDLG - Maximum Residual Disinfectant Level Goal is 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 is 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.NA - Not Applicable.

ND - Not Detected and indicates that the substance was not found by laboratory analysis.ppb - Parts Per Billion or micrograms per liter - one part by weight of analyte to 1 billion parts by weight of water sample.ppm - Parts Per Million or milligrams per liter - one part by weight of analyte to 1 million parts by weight of water sample.







ALExceeded

Y/N


No. of Sampling

Sites Exceeding

the AL

MCLGAL

(Action Level)


Copper (ppm) 07/2014 N 0.003 0 1.3 AL=1.3Corrosion of household plumbing systems; ero-sion of natural deposits; leaching from wood preservatives

Lead (ppb) 07/2014 N 2.0 0 0 AL=15Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, and solder

4













5










6








Western RegionalWater System






Sincerely,


Teresa JacobsMayor











1








2




MCLViolation

Y/N


Positive Samples

Rangeof






MCLViolation

Y/NLevel Detected

Rangeof


Alpha Emitters (pCi/L) 2014 N 1.3 ND-1.3 0 15 Erosion of natural deposits

Radium 228 (pCi/L) 2014 N 0.7 NA 0 5 Erosion of natural deposits



Fluoride (ppm) 02/2014 N 0.710 0.164-0.710 4 4

Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories

Lead (point of entry) (ppb) 01/2014 N 2.01 ND-2.01 NA 15

Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, andsolder

Nitrate (as Nitrogen) (ppm) 03/2016 N 0.015 0.013-0.015 10 10 Runoff from fertilizer use; leaching from septic










ALExceeded

Y/N


No. of Sampling

Sites Exceeding

the AL

MCLGAL

(Action Level)


Copper (ppm) 06/2014-07/2014 N 0.15 0 1.3 AL=1.3

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

Lead (ppb) 06/2014-07/2014 N 1.7 0 0 AL=15

Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, and solder


Your Water Quality Test ResultsWestern Regional Water System

3

Understanding Your Water Quality ReportThe water distributed to the homes of our customers is regularly monitored by state-certified operators and analyzed by our laboratory to ensure compliance with state and federal drinking water standards, thus providing the highest quality water. Our commitment to water quality is reflected by more than 350,000 analyses performed during 2016, which is far above the required testing. The Orange County Utilities Water Division monitors for more than 150 substances in the drinking water supply.

Orange County water systems are monitored on different cycles ranging from monthly to every three years according to state and federal laws, rules, and regulations. Except where indicated otherwise, this report is based on results of our monitoring for the period of January 1 - December 31, 2016.



ND - Not Detected and indicates that the substance was not found by laboratory analysis.pCi/L - Picocuries Per Liter - Measure of the radioactivity in water.ppb - Parts Per Billion or micrograms per liter - one part by weight of analyte to 1 billion parts by weight of water sample.ppm - Parts Per Million or milligrams per liter - one part by weight of analyte to 1 million parts by weight of water sample.




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5










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Daetwyler ShoresWater System






Sincerely,


Teresa JacobsMayor











1








2




MCLViolation

Y/N

Highest Monthly Number of

Positive Samples

Rangeof


Total Coliform Bacteria 2016 N 0 0 0 SeeNote A Naturally present in the environment




MCLViolation

Y/NLevel Detected

Rangeof




Nitrate (as Nitrogen) (ppm) 07/2015 N 0.11 ND-0.11 10 10 Runoff from fertilizer use; leaching from septic


Sodium (ppm)1 03/2014 N 12.9 5.52-12.9 NA 160 Salt water intrusion; leaching from soil


Bromate (ppb) 2016 N 4.07 ND-10.6 0 10 By-product of drinking water disinfection







ALExceeded

Y/N


No. of Sampling

Sites Exceeding

the AL

MCLGAL

(Action Level)




Note A: For systems collecting fewer than 40 samples per month: presence of coliform bacteria in greater than one sample collected during a month.

Your Water Quality Test ResultsDaetwyler Shores

3


One sample during 2016 had a Total Trihalomethane result of 82.0 ppb, which exceeds the MCL of 80 ppb. However, the system did not incur an MCL violation because all locational annual average results at all sites were at or below the MCL. Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kidneys, or central nervous system, and may have an increased risk of getting cancer.







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5










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Lake John ShoresWater System






Sincerely,


Teresa JacobsMayor











1


Orange County Utilities’ water system continues to provide reliable service to a growing number of customers inOrange County. In 2016, the Orange County Utilities Water Division provided quality water service to over 145,000




Beneath Orange County lies a freshwater reservoirknown as the Floridan Aquifer. The groundwater


2



Date of Sampling

MCLViolation

Y/N


Positive Samples

Rangeof


Total Coliform Bacteria 01-03/2016 N 0 0 0 SeeNote A Naturally present in the environment




MCLViolation

Y/NLevel Detected

Rangeof


Alpha Emitters (pCi/L) 03/2015 N 2.9 NA 0 15 Erosion of natural deposits


Arsenic (ppb) 03/2015 N 4.293 NA NA 10Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes

Barium (ppm) 03/2015 N 0.015 NA 2 2 Discharge of drilling wastes; discharge from metal refineries; erosions of natural deposits

Fluoride (ppm) 03/2015 N 0.250 NA 4 4Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories

Mercury (inorganic) (ppb) 03/2015 N 0.012 NA 2 2

Erosion of natural deposits; discharge from refineries and factories; runoff from landfills; runoff from cropland

Nickel (ppb) 03/2015 N 3.1 NA NA 100 Pollution from mining and refining operations; natural occurrence in soil

Nitrate (as Nitrogen) (ppm) 03/2016 N 0.97 NA 10 10 Runoff from fertilizer use; leaching from septic


Selenium (ppb) 03/2015 N 7.3 NA 50 50Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines

Sodium (ppm)¹ 03/2015 N 13 NA NA 160 Salt water intrusion; leaching from soil

Thallium (ppb) 03/2015 N 0.62 NA 0.5 2 Leaching from ore-processing sites; discharge from electronics, glass, and drug factories

Synthetic Organic Contaminants Including Pesticides and HerbicidesDi(2-ethylhexyl) phthalate (ppb) 03/2015 N 0.16 NA 0 6 Discharge from chemical factories

TTHM’s and Stage 2 Disinfectants/Disinfection By-Product (D/DBP) Parameters ²



MCL Violation

Y/NLevel Detected Range of

Results MCLG MCL Likely Source of Contamination


Haloacetic Acids (HAA5) (ppb) 08/2016 N 6.0 NA NA 60 By-product of drinking water disinfection

Total Trihalomethanes(TTHM) (ppb) 08/2016 N 23.4 NA NA 80 By-product of drinking water disinfection


Your Water Quality Test ResultsLake John Shores

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AL Violation Y/N


No. of Sampling

Sites Exceeding

the AL

MCLG AL (Action Level) Likely Source of Contamination

Copper (ppm) 06/2015 N 0.465 0 1.3 AL=1.3Corrosion of household plumbing systems; ero-sion of natural deposits; leaching from wood preservatives

Lead (ppb) 06/2015 N 2.2 0 0 AL=15Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, and solder

Understanding Your Water Quality ReportThe water distributed to the homes of our customers is regularly monitored by state-certified operators and analyzed by our laboratory to ensure compliance with state and federal drinking water standards, thus providing the highest quality water. Our commitment to water quality is reflected by more than 350,000 analyses performed during 2016, which is far above the required testing. The Orange County Utilities Water Division monitors for more than 150 substances in the drinking water supply.

Orange County water systems are monitored on different cycles ranging from monthly to every three years according to state and federal laws, rules, and regulations. Except where indicated otherwise, this report is based on results of our monitoring for the period of January 1 - December 31, 2016.


Key to Abbreviations:AL - Action Level is the concentration of a contaminant that, if exceeded, triggers treatment or other requirements which a water system must follow.MCL - Maximum Contaminant Level 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.MCLG - Maximum Contaminant Level Goal is 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.MRDLG - Maximum Residual Disinfectant Level Goal is 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 is 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.NA - Not Applicable.pCi/L - Picocuries Per Liter - Measure of the radioactivity in water.

ppb - Parts Per Billion or micrograms per liter - one part by weight of analyte to 1 billion parts by weight of water sample.ppm - Parts Per Million or milligrams per liter - one part by weight of analyte to 1 million parts by weight of water sample.

Footnotes to Water Quality Test Results1. The Florida Department of Environmental Protection (FDEP)

standard for Sodium is 160 ppm. The FDEP has set the MCLfor Sodium at a more stringent level than federal regulationsrequire.

2. For the parameters monitored under the Stage 2 D/DBPregulations, the level detected is the highest locationalrunning annual average for the samples collected: HaloaceticAcids (60 ppb) and/or TTHM (MCL 80 ppb). Range of Resultsis the range of results (lowest to highest) at the individualsampling sites.

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The Environmental Protection Agency (EPA)requires all public water suppliers to routinely






which may come from sewage treatment plants, septicsystems, agricultural livestock operations, and wildlife.

• Inorganic contaminants, such as salts and metals, whichcan be naturally occurring or result from urban stormwaterrunoff, industrial or domestic wastewater discharges, oiland gas production, mining, or farming.

• Pesticides and herbicides, which may come from a varietyof sources, urban stormwater runoff, and residential uses.

• Organic chemical contaminants, including synthetic andvolatile organic chemicals, which are by-products ofindustrial processes and petroleum production, and canalso come from gas stations, urban stormwater runoff,and septic systems.

• Radioactive contaminants, which can be naturallyoccurring or be the result of oil and gas production andmining activities.

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Magnolia Woods

Partlow AcresWater System






Sincerely,


Teresa JacobsMayor











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MCLViolation

Y/N


Positive Samples

Rangeof


Total Coliform Bacteria 2016 N 0 0 0 SeeNote A Naturally present in the environment




MCLViolation

Y/NLevel Detected

Rangeof


Antimony (ppb) 02/2014 N 0.29 0.22-0.29 6 6Discharge from petroleum refineries; fire retar-dants; ceramics; electronics; solder

Arsenic (ppb) 02/2014 N 2.3 0.47-2.3 0 10Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes



Lead (ppb) 02/2014 N 0.15 0.10-0.15 NA 15 Residue from man-made pollution such as auto emissions and paint; lead pipe, casing, and solder

Nitrate (as Nitrogen) (ppm) 08/2016 N 0.74 ND-0.74 10 10 Runoff from fertilizer use; leaching from septic


Nickel (ppb) 02/2014 N 3.9 1.1-3.9 NA 100 Pollution from mining and refining operations; natural occurrence in soil

Selenium (ppb) 02/2014 N 0.91 ND-0.91 50 50 Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines


Thallium (ppb) 02/2014 N 0.12 0.11-0.12 0.5 2 Leaching from ore-processing sites; discharge from electronics, glass, and drug factories


Magnolia Woods




Partlow Acres





Your Water Quality Test ResultsMagnolia Woods • Partlow Acres

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ALExceeded

Y/N


No. of Sampling

Sites Exceeding

the AL

MCLGAL

(Action Level)


Magnolia Woods



Partlow Acres







Footnotes to Water Quality Test Results1. The Florida Department of Environmental Protection (FDEP)

standard for Sodium is 160 ppm. The FDEP has set the MCL for Sodium at a more stringent level than federal regulations require.


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Documents

Annual Drinking Water Report 2017 - Orange County, Florida · Orange County Utilities is pleased to present its 2017 Annual Drinking Water Report, ... visit Orange County’s website