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Water Quality Report (CCR)

Annual Water Quality Report (CCR)

This document is available to view in PDF format. 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?

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 WaterDrinking 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

Rouge River WatershedHousehold 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.

Clinton River WatershedLandscape 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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