The
City of Terrell is proud of the fine drinking water it provides. This annual
water quality report shows the source of our water, lists the results of our
tests, and contains much important information about water and health. City
of Terrell will notify you immediately if there is any reason for concern
about our water.
SPECIAL NOTICE
You may be more vulnerable than the general population to certain microbial
contaminants, such as Cryptosporidium, in drinking water. Infants, some elderly,
or immunocompromised persons such as those undergoing chemotherapy for cancer;
those who have undergone organ transplants; those who are undergoing treatment
with steroids; and people with HIV/AIDS or other immune system disorders can
be particularly at risk from infections. You should seek advice about drinking
water from your physician or health care provider. Additional guidelines on
appropriate means to lessen the risk of infection by Cryptosporidium are available
from the Safe Drinking Water Hotline at (800) 426-4791.
The bottom line: Is the water safe to drink? Absolutely.
Call us for information about the next opportunity for public participation
in decisions about our drinking water.Find out more about City of Terrell
on this website.
En Espanol
Este reporte incluye informacion importante sobre el agua para tomar. Para
asistencia en espanol, favor de llamar al telefone (972) 551-6635.
OUR DRINKING WATER IS REGULATED
This report is a summary of the quality of the water we provide our customers. The analysis was made by using tha 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.
YOUR DRINKING WATER IS SAFE
Providing safe and reliable drinking water is the highest priority for the City of Terrell water department. Our employees take pride in providing and delivering water to your home or business.
The information in this report is based on tests conducted through 2010.
It is important to us that you have information about your Drinking Water so you can have confidence in the product we deliver.
Source of Drinking Water
The City of Terrell purchases treated water from North Texas Municipal Water
District (NTMWD). NTMWD utilizes four reservoirs; Lavon Lake, Lake Jim Chapman,
Lake Tawakoni, and Lake Texoma for their raw water supplies. The City of Terrell’s
Water Treatment Plant was closed on June 19, 2007.
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 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 include:
(A) Microbial contaminants, such as viruses and bacteria, which may come from
sewage treatment plants, septic systems, agricultural livestock operations,
and water wildlife.
(B) Inorganic contaminants, such as salts and metals, which can be naturally-occurring
or result from urban storm 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, stormwater runoff, and residential uses.
(D) Organic chemical contaminants, including synthetic and volatile organics,
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.
TCEQ completed an assessment of your source water and results indicate that some of our sources are susceptible to certain contaminants. The sampling requirements for your water are based on this susceptibility and previous sample data. Any detections of these contaminants will be found in this Consumers Confidence report. For more information on source water assessments and protection efforts at our system contact Water Quality, (972) 551-6635.
The report showed a HIGH susceptibility for the following contaminants: Inorganics, regulated and unregulated; Volatile Organic Contaminant, regulated and unregulated; Synthetic Organic Contaminant, regulated and unregulated; Disinfection By-Product, regulated; and Microbial Organism, unregulated.
A Source Water Susceptibility Assessment for your drinking water source(s)
is currently being updated by the Texas Commission on Environmental Quality.
This information describes the susceptibility and types of constituents that
may come into contact with your drinking water source based on human activities
and natural conditions. The information contained in the assessment allows
us to focus source water protection strategies. Some of this source water
assessment information is available on Texas Drinking Water Watch at http:dww.tceq.state.state.tx.us/DWW/.
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 benefits
to purchasing bottled water or point of use devises.
Drinking water, including bottled water, may reasonably be expected to contain
at least small amounts of some contaminants. The presence of contaminant 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 (800-426-4791).
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, secondary are not required to be reported in this document
but they may greatly affect the appearance and taste of your water.
What Do The Tables Mean?
The tables show the results of our water-quality analyses. Every regulated
contaminant that we detected in the water, even in the most minute traces,
is listed here. The table contains the name of each substance, the highest
level allowed by regulation (MCL), the ideal goals for public health, the
amount detected, the usual sources of such contamination, footnotes explaining
our findings, and a key to units of measurement. Definitions of MCL and MCLG
are important.
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.
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.
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.
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.
Key To Table
AL = Action Level
MCL = Maximum Contaminant Level
MCLG = Maximum Contaminant Level Goal
NTU = Nephelometric Turbidity Units
pCi/l = picocuries per liter (a measure of radioactivity)
ppm = parts per million, or milligrams per liter (mg/l)
ppt = parts per trillion, or nanograms per liter
ppb = parts per billion, or micrograms per liter (µg/l)
ppq = parts per quadrillion, or picograms per liter
TT = Treatment Technique
ND = Not Detected at the Reporting Limit
Regulated at the Customer's Tap
Contaminant Action Level (AL) 90th Percentile # Sites Over AL MCLG Violations
Likely Source of Contaminant
Lead (ppb) 15.0 3.41 0 0 No Corrosion of household plumbing system; Erosion of natural deposits Copper (ppm) 1.3 .665 0 1.3 Erosion of natural deposits; Leaching from wood preservatives; Corrosion of household plumbing systems
Recommended Additional Health Information for lead
All water systems are required by EPA to report the language below starting
with the 2010 CCR to be delivered to you by
July of 2011. We are now providing this information as a courtesy.
“If present, elevated levels of lead can cause serious health problems,
especially for pregnantwomen 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.”
Regulated at the Treatment Plant
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
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Total Organic Carbon
Contaminant |
Year |
Average Level |
Minimum Level |
Maximum Level |
Unit of Measure |
Source of Contaminant |
Source Water |
2010 |
4.34 |
3.06 |
9.32 |
ppm |
Naturally present in environment |
Drinking Water |
2010 |
3.17 |
2.22 |
5.74 |
ppm |
Naturally present in environment |
Removal Ratio |
2010 |
30% |
15% |
45% |
% removal* |
N/A |
*Removal ratio is the percent of TOC removed by the treatment process divided by the percent of TOC required by TCEQ to be removed.
Note: Total Organic Carbon (TOC) has no health effects.
The disinfectant can combine with TOC to form disinfection byproducts. Disinfection
is necessary to ensure that water does not have unacceptable levels of pathogens.
Byproducts of disinfection include trihalomethanes (THMs) and haloacetic acids
(HAA) which are reported elsewhere in this report
