Annual Water Quality Report (CCR)
 The
2007 report can also be viewed in PDF format by
clicking here.
| 2007
Annual Quality Water Report |
|
Bloomfield Township is pleased to
inform you that in 2007, as in past years, we have
surpassed water quality standards. |
 |
Annual Quality Water Report |
| |
June 2008 |
Bloomfield Township
4200 Telegraph Rd.
Bloomfield Hills, MI 48302
Tel: 248. 433.7731
Fax: 248.594.2810
water@bloomfieldtwp.org |
Bloomfield Township is pleased to inform
you that in 2007, as in past years, we have surpassed the
water quality standards required by the U.S. Environmental
Protection Agency (EPA) and the State of Michigan
Department of Environmental Quality (MDEQ). The 2007
Annual Water Quality Report describes the source of our
water, lists our test results, and contains important
information about water and health. This report is
intended to provide consumer understanding of drinking
water and to heighten awareness of the need to protect our
precious water resources. For more information on the
specific testing results please see the water quality
table and definitions as provided.
We hope this report addresses any drinking
water quality concerns you might have. Additional
information can be found on the Detroit Water and Sewerage
Department
website and on the EPA’s website, Water on
Tap: A Consumer’s Guide to the Nation’s Drinking Water.
Where Does My Water Come From?
The Detroit Water & Sewerage Department (DWSD) provides
the drinking water to Bloomfield Township. In 2007, the
Township purchased over 2.63 billion gallons of water from
DWSD that was distributed locally through the Township’s
water supply system to our customers. Your source water
comes from the lower Lake Huron watershed. The watershed
includes numerous short, seasonal streams that drain to
Lake Huron. The Michigan Department of Environmental
Quality in partnership with the U.S. Geological Survey,
the Detroit Water and Sewerage Department, and the
Michigan Public Health Institute performed a source water
assessment to determine the susceptibility of potential
contamination. The susceptibility rating is a seven-tiered
scale ranging from moderately low to very high based
primarily on geologic sensitivity, water chemistry, and
contaminant sources. The Lake Huron source water intake is
categorized as having a moderately low susceptibility to
potential contaminant sources. The Lake Huron water
treatment plant has historically provided satisfactory
treatment of this source water to meet drinking water
standards.
For a full copy of this report, or for
more information, please contact Tom Trice, DPW Director,
at 248.433.7731 or visit our website.
How is My Water Treated?
The treatment process begins with disinfecting the
source water with chlorine to kill harmful microorganisms
that can cause illness. Next, a chemical called Alum is
mixed with the water to remove the fine particles that
make the water cloudy or turbid. Alum causes the particles
to clump together and settle to the bottom. Fluoride is
also added to protect our teeth from cavities and decay.
The water then flows through fine sand filters called
beds. These beds remove even more particles and certain
microorganisms that are resistant to chlorine. Finally,
small amounts of phosphoric acid and chlorine are added to
the treated water just before it leaves the treatment
plant. The phosphoric acid helps control the lead that may
dissolve in water from household plumbing systems. The
chlorine keeps the water disinfected as it travels through
water pipes to reach your faucet. |
|
|
Significant portions of this report contain mandatory
language as required by the 1996 Federal Safe Drinking Water
Act amendments. These sections are shown in italics.
 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
(800.426.4791).
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. Contaminants that
may be present in source water 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 such as agriculture, urban stormwater
runoff, and residential uses.
- 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.
- 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, 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.
Do I Need to Take Special Precautions?
Some people may be more vulnerable to
contaminants in drinking water than is the general population.
Immunocompromised 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 microbial contaminants
are available from the Safe Drinking Water Hotline
(800.426.4791).
Terms and Abbreviations
Maximum Contaminant Level Goal (MCLG): The level of
contaminant in drinking water below which there is no known or
expected risk to health.
Maximum Contaminant Level (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 Residual Disinfectant Level Goal (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 (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.
Parts per billion (ppb): The ppb is equivalent to
micrograms per liter. A microgram = 1/1000 milligram.
Parts per million (ppm): The ppm is equivalent to
milligrams per liter. A milligram = 1/1000 gram.
Nephelometric Turbidity Units (NTU): Measures the
cloudiness of water.
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 which a water system must follow.
Haloacetic acids (HAA5): HAA5 is the total of
bromoacetic, chloroacetic, dibromoacetic, dichloroacetic and
trichloroacetic acids. Compliance is based on the total.
Total Trihalomethanes (TTHM): Total Trihalomethanes
is the sum of chloroform, bromodichloromethane, and bromoform.
Compliance is based on the total.
|
| Click here
to view the Lake Huron Water Treatment Plant 2007
Regulated Detected Contaminants Table in a new window. |
|
What You Can Do to Help Protect Our Water Resources
 Household hazardous waste: Never
dump items such as used motor oil, fuel products, cleaners,
paints, and pesticides on the ground or down the drain. They
can contaminate groundwater and surface water. Bloomfield
Township household hazardous waste collection events are held
May & October.
Septic systems: If you
have a septic system, have it checked every two to three years
to ensure it is working properly.
Abandoned wells:
Properly close any abandoned wells on your property. They can
carry contaminants directly to groundwater.
 Landscape with nature: Try
landscaping with plants native to Michigan. They are well
suited to our climate and are resistant to pests. They can
reduce the need for irrigation and fertilizer application
resulting in less runoff and more water conservation.
Pet waste:
Because pet waste can be high in bacteria and
nutrients, it should be disposed of in a toilet or trashcan.
Don’t guess; soil
test: Have your lawn soil analyzed for nutrient
information. Overapplicaton of fertilizers can cause these
products to make their way into both surface waters and
groundwater.
For More Information
Any questions regarding this report, please
contact the Public Works Water Division at 248.433.7731. We
will continue to update this report annually and will keep you
informed of any problems that may occur throughout the year,
as they happen. Customers, as well as the general public, have
the opportunity to participate on decisions concerning the
water supply system by attending regular Township Board
meetings on the second and fourth Mondays of the month at 8:00
PM.
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Charter Township of Bloomfield
4200 Telegraph Road
P.O. Box 489
Bloomfield Hills, MI 48303-0489
248.433.7700
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