Drinking Water Report 2008T H E C I T Y O F
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X008 Drinking Water
Quality Report
OUR DRINKING WATER MEETS OR
EXCEEDS ALL FEDERAL (EPA) DRINHING
WATER REQUIREMENTS.
This report is a summary of the quality of the water we
provide our customers. The analysis was made by using the
data from the most recent U.S. Environmental Protection
Agency (EPA) required tests and is presented in the attached
pages. We hope this information helps you become more
knowledgeable about what's in your drinking water.
The City of Coppell has maintained its rating of "Superior
Public Water Supply," the highest rating given by the Texas
Commission on Environmental Quality, by exceeding state
and federal drinking water standards.
En Espanol
Este report incluye la informacion importante sobre su
agua para tomar. Si tiene preguntas o'discusiones sobre
este reporte en expanol, favor de llamar al tel. 972-304-
3679 par hablar con una persona bilingue en espanol.
Special Notice for the ELDERLY, INFANTS,
CANCER PATIENTS, people with HIV/AIDS or
other immune problems:
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 and Prevention
(CDC) guidelines on appropriate means to lessen the risk of
infection by Cryptosporidium and other microbial
contaminants are available from the Safe Drinking Water
Hotline at 1-800-426-4791 or www.epa.govlsafewater.
Water Sources:
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 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.
Contaminants that may be present in source water before
treatment include: microbes, inorganic contaminants,
pesticides, herbicides, radioactive contaminants, and organic
chemical contaminants.
Where do we get our drinking water?
Our drinking water is obtained from surface water sources.
It comes from Elm Fork of the Trinity River and lakes Ray
Roberts, Lewisville, Grapevine, Ray Hubbard and
Tawakoni. TCEQ has completed an assessment of our
source waters and the results indicate that some of the
sources are susceptible to certain contaminants. Sampling
requirements for our water system are based on this
susceptibility and previously sampled data. Any detection
of these contaminants will be found in this report. For
more information on source water assessments and
protection efforts at our system, please contact us.
All drinking water may contain contaminants.
When drinking water meets federal standards there may
not be any health-based benefits to purchasing bottled
water or 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
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 safe Drinking Water
Hotline at 1-800-426-4791.
Public Participation (City Council meetings):
Date : 2~ & 4~ Tuesdays each month
Time : 7:00 ~n
Location: 255 Parkway Blvd.
Phone No: (972) 462-5150
If you have questions or concerns about water quality, call
the Utilities Division of Public Works at 972-462-5150. To
request a speaker for your group, call the Engineering
Department at 972-304-3679.
Secondary Constituents
Many constituents (such as calcium, sodium, or iron) which
are often found in drinking water, can cause taste, color, and
odor problems. The taste and odor constituents are called
secondary constituents and are regulated by the State of
Texas, not the EPA. These constituents are not causes for
health concern. Therefore, secondaries are not required to be
reported in this document but they may greatly affect the
appearance and taste of your water.
About The Following Pages
The pages that follow list all of the federally regulated or
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
2008 Fluoride 0.81 0.33 0.69 4 4 ppm Erosion of natural deposits;
Water additive which
promotes strong teeth;
Discharge from fertilizer and
aluminum factories.
2008 Nitrate 1.9 0.02 0.63 10 10 ppm Runoff from fertilizer use;
Leaching from septic tanks,
sewage;
Erosion of natural deposits.
2006 Gross Beta 5.4 3.5 4.5 50 0 pci/1 Decay of natural and man-
Emitters made deposits.
ORGANICS
Year Constituent Max. Min. AVG. MCL MCLG Unit Source of Constituent
Level Level Level
of
Measure
2008 Simazine 1.37 0.13 0.57 4 4 ppb Herbicide runoff.
2008 Atrazine 0.49 0.11 0.3 3 3 ppb Runoff from herbicide used
on row crops .
TURBIDITY
Year Constituent Highest Lowest Monthly Turbidity Unit Source of Constituent
Single % o f Samples Limits o f
Measurement Meeting Limits Measure
2008 Turbidity 0.09 100 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.
MAXIMUM RESIDUAL DISINFECTANT LEVEL
Year Constituent Max. Min. AVG. MRDL MRDLG Unit Source of Constituent
Level Level Level of
Measure
2008 Chloramine 4.6 1.0 3.18 4 4 ppm Disinfectant used to control
Residual microbes
DISINFECTION BY-PRODUCTS
Year Constituent M~• Min. AVG. MCL Unit Source of Constituent
Level Level Level of
Measure
2008 Total 26.7 6.6 16.4 80 ppb By-product of drinking water
Trihalomethanes chlorination.
2008 Total Haloacetic 17 26.2 21.4 60 ppb By-product of drinking water
Acids chlorination.
TOTAL COLIFORM
Year Constituent Highest Monthly MCL Unit Source of Constituent
Number of of
Positive Sampling M~aszzcr~
2008 Total 2 * Presence Naturally present in the
Conform environment.
Bacteria
* 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
Bromoform, chloroform, dichlorobromomethane and dibromochloromethane are disinfection byproducts. There is no maximum
contaminant level for thses chemicals at the entry point to distribution.
Year Constituent Max.
Level Min.
Level AVG.
Level Unit of
M~aszcr~ Reason for Monitoring
2008 Chloroform 54.5 1.8 19.4 ppb Byproduct of drinking water disinfection
2008 Bromodichloromethane 14.5 1.0 4.5 ppb Byproduct of drinking water disinfection
2008 Dibromodichloromethane 3.6 ND 2.0 ppb Byproduct of drinking water disinfection
LEAD AND COPPER
Year Constituent The 90"` Number of Sites Action Unit Source of Constituent
Percentile Exceeding Level °f
Action Level Measure
2007 Lead 2.4 0 15 ppb C~nsionof household plumbing sys.
Erosion of natural de osits.
2007 Copper 0.476 0 1.3 ppm ~1 of household plumbing sys.
Erosion of natural deposits;
Leaching from wood preservatives.
Coppell's water supply has repeatedly had significantly low action levels of lead and copper. Data reported is from the most
recent testing done in accordance with State and Federal regulations. Coppell is only required to test for lead and copper
every three years.
All water systems are required by EPA to report the language below starting with the 2009 CCR to be delivered to bill-
paying customers and non bill-paying consumers by July of 2010. The following information is provided at this time as a
courtesy:
"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
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:
NTU - Nephelometric Turbidity Units
ppt -parts per trillion, or nanograms per liter
ppq -parts per quadrillion, or picograms per liter
ppm -parts per million, or milligrams per liter (mg/1)
TTHM -Total Trihalomethanes
MFL -million fibers per liter (measure of asbestos)
pCi/1- picocuries per liter (measure of radioactivity)
ppb -parts per billion, or micrograms per liter (µg/1)
THAA -Total Haloacetic Acids
City of Coppell, Texas
P.O. Box 9478
Coppell, TX 75019
City of Coppell Water Utilities 972-462-5150
Water Billing 972-304-3695
C-LINK (24-Hour auto-information phone line)
972-304-3542, msg. #841
Web Site www.ci.coppell.tx.us
City of Dallas Water Utilities
Customer Service 214-651-1441
Water Quality Info. 214-670-0900
EPA Safe Drinking Water Hotline 1-800-426-4791
TCEQ 1-512-239-1000
RESORT STD
U.S. POSTAGE
PAID
Coppell, Texas
Permit No. 3
POSTAL PATRON
COPPELL, TEXAS
75019