Water Quality Report for Village of Nashville
June 2011
This report covers
the drinking water quality for the Village of Nashville for the calendar year 2010. This information is a snapshot of the
quality of the water we provided to you in 2010. Included are details about where your water comes from, what it contains,
and how it compares to Environmental Protection Agency (EPA) and state standards.
The water we supply you comes from three groundwater wells
located on Sherman Street and Water Alley. The state of Michigan will be performing an assessment of our source water by 2011.
We will inform you how to get a copy of this assessment report when it becomes available.
*
Contaminants and their presence in water:
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 the water poses a health risk.
More information about contaminants and potential health effects can be obtained by calling the EPA's Safe Drinking
Water Hotline at 1-800-426-4791.
* Vulnerability of sub-populations:
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 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 at 1-800-426-4791.
* Sources of Drinking Water:
The sources of drinking water (both tap water and bottled water) include rivers,
lakes, streams, ponds, reservoirs, springs, and wells. Our water comes from wells. As water travels over the surface of the
land or through the ground, it dissolves naturally occurring minerals and in some cases, radioactive materials, 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 operations and wildlife.
* Inorganic contaminants, such as salts and metals, which can be naturally-occurring
or result from 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 agricultural and urban storm
water run-off.
*
Radioactive Contaminants, which may be naturally occurring or the result of oil and gas production and mining
activities.
*
Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by-products of
industrial processes and petroleum production, and can, also,
come from gas stations, urban storm water runoff, and septic systems.
In order to ensure tap water is safe to drink, EPA prescribes
regulations which limit the amount of certain contaminants in water provided by public water systems. Food and Drug Administration
regulations establish limits for contaminants in bottled water which provide the same protection for public health.
The attached table lists all drinking water contaminants that we detected during the 2010 calendar year. The presence
of these contaminants in the water does not necessarily indicate that the water poses a health risk. Unless otherwise noted,
the data presented in this table is from testing done January 1 - December 31, 2010. The state allows us to monitor for certain
contaminants less than once per year because the concentrations of these contaminants are not expected to vary significantly
from year to year. All of the data is representative of the water quality, but some are more than one year old. Over the past
year our system did not collect the required number of samples for Halocetic Acid (HAA5) and Total Trihalomethanes (TTHMs)which
are both disinfection byproducts resulting from the chlorine we add to your water to control microbial contaminants. The samples
that were required in 2010 will be collected in 2011 and the results of those tests will be published in the 2011 Consumer
Confidence Report. We are required to monitor your drinking water for specific contaminants on a regular basis. Results of
regular monitoring are an indicator of whether or not your drinking water meets health standards. During 2010 we did not complete
all monitoring for HAA5 and TTHMs and therefore cannot be certain of the levels of Halocetic Acid and Total Trihalomethanes
in your drinking water at this time. However historic testing for those disinfection byproducts have indicated that our water
has always been well below Maximum Contaminant Levels (MCL)and contain either non-detectible or
very low levels of these contaminants. The results of prior year tests are included in the table in this report and as noted
are well below the Maximum Contaminant Level (MCL) set by the EPA. Since the amount of chlorine added to
your drinking water has remained consistent over the last several years, one might expect our levels of disinfection byproducts
have remained consistently at very low to non-detectible levels also. This is not an immediate health risk. If it had been,
you would have been notified immediately. We will monitor for disinfection byproducts in June 2011 and return to compliance.
The results of those samples will be available upon request and will also be published in the 2011 Consumer Confidence Report.
For more information, please contact Scott Decker at 517-852-9571 or 269-818-7826.
Terms and abbreviations used in the table:
Maximum Contaminant Level Goal (MCLG) : The level of a contaminant in drinking water below which there is no known
or expected risk to health. MCLG's allow for a margin of safety.
Maximum Contaminant Level (MCL): The
highest level of contaminant that is allowed in drinking water. MCL's are set as close to the MCLG's as feasible using
the best available treatment technology.
N/A: Not applicable
ND: Not detectable at testing limit
ppb: parts per billion or micrograms per liter
ppm: parts per million or milligrams per liter
pCi/l: Pico curies per liter ( a measure of radiation)
Action level: The
concentration of a contaminant, which if exceeded, triggers treatment or other requirements which water systems must follow.
Maximum Residual Disinfectant Level(MRDL): The highest level of a disinfectant allowed
in drinking water. There is convincing evidence that addition of disinfectant is necessary for the control of microbial contaminants.
Maximum Residual Disinfection Level Goal (MRDLG):The level of a drinking water disinfectant
below which there is no known or expected risk to health. MRDLG’s do not reflect the benefits of the use of disinfectants
to control microbial contaminants.