Drinking Water Report 2010 T 11 E •G 1 T Y • 0 F 20110
COPPELL Drinking Water
Quality Report
A S , a
WHAT'S IN YOUR DRINKING WATER?
OUR DRINKING WATER MEETS OR Where do we get our drinking water?
EXCEEDS ALL FEDERAL (EPA) DRINKING Our drinking water is obtained from surface water sources.
WATER REQUIREMENTS. It comes from Lake Tawakoni, Lake Ray Hubbard and/or
the Elm Fork of the Trinity River. A Source Water
This report is a summary of the quality of the water we Susceptibility Assessment for your drinking water sources is
provide our customers. The analysis was made by using the currently being updated by the Texas Commission on
data from the most recent U.S. Environmental Protection Environmental Quality and will be provided to us this year.
Agency (EPA) required tests and is presented in the attached The report will describe the susceptibility and types of
pages. We hope this information helps you become more constituents that may come into contact with your drinking
knowledgeable about what' s in your drinking water. The City water based on human source activities and natural
of Coppell has maintained its rating of "Superior Public Water conditions. The information contained in the assessment
Supply," the highest rating given by the Texas Commission on will allow us and/or the system from which we receive
Environmental Quality, by exceeding state and federal water to focus on source water protection strategies. For
drinking water standards. more information on source water assessments and
protection efforts at our system, please contact us.
En Espanol All drinking water may contain contaminants.
Este report incluye la informacion importante sobre su
agua para tomar. Si tiene preguntas o'discusiones sobre When drinking water meets federal standards there may not
este reporte en espanol, favor de llamar al tel. 972 - be any health based benefits to purchasing bottled water or
3679 par hablar con una persona bilingue en espanol. point of use devices. Drinking water, including bottled
water, may reasonably be expected to contain at least small
amounts of some contaminants. The presence of
Special Notice for the ELDERLY, INFANTS, contaminants does not necessarily indicate that water poses
CANCER PATIENTS, people with HIV /AIDS or a health risk. More information about contaminants and
other immune problems: potential health effects can be obtained by calling the
Environmental Protection Agency's safe Drinking Water
You may be more vulnerable than the general population to Hotline at 1- 800 - 426 -4791.
certain microbial contaminants, such as Cryptosporidium, in
drinking water. Infants, some elderly, or immunocompromised Public Participation:
persons such as those undergoing chemotherapy for cancer; Date: 2 & 4 Tuesdays each month
those who have undergone organ transplants; those who are Time: 7:00 Fin
undergoing treatment with steroids; and people with Location: 255 Parkway Blvd.
HIV /AIDS or other immune system disorders can be Phone No: (972) 462 - 5150
particularly at risk from infections. You should seek advice Questions or concerns about water quality, call the Utilities
about drinking water from your physician or health care Division of Public Works at 972 - 462 -5150. To request a
provider. Additional guidelines on appropriate means to lessen speaker for your group, call the Engineering Department at
the risk of infection by Cryptosporidium are available from the 972 - 304 -3679.
Safe Drinking Water Hotline at (800) 426 - 4791." Secondary Constituents
Many constituents (such as calcium, sodium, or iron) which
Water Sources: are often found in drinking water can cause taste, color, and
The sources of drinking water (both tap water and bottled odor problems. The taste and odor constituents are called
water) include rivers, lakes, streams, ponds, reservoirs, springs secondary constituents and are regulated by the State of
and wells. As water travels over the surface of land or through Texas, not the EPA. These constituents are not causes for
the ground, it dissolves naturally - occurring minerals, and in health concern. Therefore, secondaries are not required to be
some cases, radioactive material, and can pick up substances reported in this document but they may greatly affect the
resulting from the presence of animals or from human activity. appearance and taste of your water.
Contaminants that may be present in source water before
treatment include: microbes, inorganic contaminants, About The Following Pages
pesticides, herbicides, radioactive contaminants, and organic The pages that follow list all of the federally regulated or
chemical contaminants. monitored contaminants which have been found in your
drinking water. The U.S. EPA requires water systems to test
for up to 97 contaminants.
INORGANICS
Year Constituent Max. Min. AVG. MCL MCL Unit Source of Constituent
Level Level Level G o f
Measure
2010 Fluoride 0.79 0.24 0.59 4 4 ppm Erosion of natural deposits;
Water additive which promotes
strong teeth; discharge from
fertilizer and aluminum factories.
2010 Nitrate 1.29 <0. 10 0.31 10 10 ppm Runoff from fertilizer use;
leaching from septic tanks,
sewage; erosion of natural
deposits.
2010 Barium 0.023 0.016 0.021 2 2 ppm Discharge of drilling waste;
discharge from metal refinerys;
erosion of natural deposits
2010 Bromate 5.8 <5.0 <5.0 10 0 ppb Byproduct of drinking water
disinfection
2010 Arsenic 2.7 2 . 3 2.5 10 0 ppb Erosion of natural deposits;
runoff from orchards; runoff
from glass and electronics
production wastes.
2010 Thallium <3.0 <3.0 <3.0 2 0.5 ppb Leaching from ore - processing
sites; discharge from electronics,
glass and drug factories
2005 Gross Beta 6.4 4 . 4 5.4 50 0 pci /1 Decay of natural and man -made
Emitters deposits.
ORGANICS
Year Constituent Max. Min. AVG. MCL MCLG Unit Source of Constituent
Level Level Level of
0
Measure
2010 Simazine 0.21 <0.07 0.19 4 4 ppb Herbicide runoff.
2010 Atrazine 0.22 0.17 0.20 3 3 ppb Runoff from herbicide used
on row crops.
TURBIDITY
Year Constituent Highest Lowest Monthly Turbidity Unit Source of Constituent
Single % of Samples Limits of
Measurement Meeting Limits Measure
2010 Turbidity 0.12 100 0.3 NTU Soil runoff.
Turbidity has no health effects. However, turbidity can interfere with disinfection and provide a medium for microbial growth.
Turbidity may indicate the presence of disease - causing organisms. These organisms include bacteria, viruses, and parasites that can
cause symptoms such as nausea, cramps, diarrhea and associated headaches.
1
DISINFECTION BY- PRODUCTS
Year Constituent Max. Min. AVG. MCL Unit Source of Constituent
Level Level Level of
Measure
2010 Total 53.0 8 . 0 24.3 80 ppb By- product of drinking water
Trihalomethanes chlorination.
2010 Total Haloacetic 26.8 10.4 19.0 60 ppb By- product of drinking water
Acids chlorination.
Coliform Bacteria
Year . Constituent Highest Monthly MCL Goal Unit Source of Constituent
Percentage of of
Positive Sampling Measure
2010 Total Coliform 2.5 % 5% or more of Presence Naturally present in the
Bacteria monthly samples environment.
* Presence of coliform bacteria in 5% or more of monthly samples.
Total coliform bacteria are used as indicators of microbial contamination of drinking water because testing for them is easy. While not disease- causing organisms
themselves, they are often found in association with other microbes that are capable of causing disease. Coliform bacteria are more hardy than many disease - causing
organisms; therefore, their absence from water is a good indication that the water is bacteriologically safe for human consumption.
UNREGULATED CONTAMINANTS
Unregulated contaminents are those for which the EPA has not established drinking water standards. The purpose of unregulated contaminant monitoring
is to assist the EPA in determining the occurrence of unregulated containments in drinking water and whether future regulation is warranted. Any
unregulated contaminantes detected are reported in the following table. For additional information and data visit:
www.epa.gov /safewater /ucmr /ucmr2 /index.html or call the Safe Drinking Water Hotline at (800)426 -4791
Year Constituent Max. Min. AVG. Unit of Reason for Monitoring
Level Level Level Measure
2010 N- nitroso- Nitrosamines can form intermediates and byproducts in chemical
synthesis and manufacture of rubber, leather, and lastics; can form
dimethylamine 6.2 <2.1 1.6 ppb spontaneously by reaction of precursor amines with nitrosating agents,
or by action of nitrate - reducing bacteria. Foods such as bacon and malt
beverages can contain nitrosamines; there is no evidence that they form
in the upper GI tract.
LEAD AND COPPER
Year Constituent The 90 Number of Sites Action Unit of Source of Constituent
Percentile Exceeding Action Level Merasrap
Level
2010 Lead 0.0017 0 15 ppb Carman of household plumbing system.
Erosion of natural deposits.
2010 Copper 0.476 0 1.3 ppm Cairbiaiof household plumbing sys.
Erosion of natural deposits;
Leaching from wood preservatives.
Required Additional Health 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. This
water supply 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."
MAXIMUM RESIDUAL DISINFECTANT LEVEL
Year Constituent Max. Min. AVG. MRDL MRDLG Unit Source of Constituent
Level Level Level of
Measure
2010 Chloramine 4.6 0.7 3.25 4 4 ppm Disinfectant used to control
Residual microbes
Definitions
Maximum Contaminant Level (MCL) - The highest permissible level of a contaminant in drinking water. MCLs are set as close to the MCLGs
as feasible using the best available treatment technology.
Maximum Contaminant Level Goal (MCLG) - The level of a contaminant in drinking water below which there is no known or expected health
risk. MCLGs allow for a margin of safety.
Maximum Residual Disinfectant Level Goal (MRDLG)- The level of 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 contamination
Treatment Technique (TT) - A required process intended to reduce the level of a contaminant in drinking water.
Action Level (AL) - The concentration of a contaminant which, if exceeded, triggers treatment or other requirements that a water system must
follow.
ABBREVIATIONS: TTHM - Total Trihalomethanes
NTU — Nephelometric Turbidity Units MFL - million fibers per liter (measure of asbestos)
ppt — parts per trillion, or nanograms per liter pCi/1 picocuries per liter (measure of radioactivity)
ppq — parts per quadrillion, or picograms per liter ppb — parts per billion, or micrograms per liter (µg/1)
ppm — parts per million, or milligrams per liter (mg/1) THAA — Total Haloacetic Acids
City of Coppell, Texas
PRESORTED
P.O. Box 9478 STANDARD
U.S. POSTAGE
Coppell, TX 75019 PAID
Dallas, Texas
2009 Water Quality Report
Permit 2036
City of Coppell Water Utilities 972 - 462 -5150
Water Billing 972 - 304 -3695
C -LINK (24 -Hour auto. info. Phone line)
972- 304 -3542, msg. #841 POSTAL PATRON
Web Site www.coppelltx.gov
City of Dallas Water Utilities COPPELL TEXAS
Customer Service 214 -651 -1441
Water Quality Info. 214 - 670 -0900 75019
EPA / Safe Drinking Water Hotline 1- 800 - 426 -4791
TCEQ 1- 512 - 239 -1000