MORRISVILLE WATER AND LIGHT – VT0005160
Consumer Confidence Report – For Year Ending
12-31-2010
This report is a
snapshot of the quality of the water that we provided in 2010. Included are the
details about where your water comes from, what it contains, and how it compares
to Environmental Protection Agency (EPA) and state standards. We are committed
to providing you with information because informed customers are our best
allies. This report is designed to inform you about the quality water and
services we deliver to you every day. To
learn more, please attend any of our regularly scheduled meetings which are
held at 6:00 PM the first and third Monday of every month at the Morrisville
Water & Light office located at 857 Elmore Street, Morrisville, Vermont.
The
person who can answer questions about this report is John Tilton at
802-888-3348 or jtilton@mwlvt.com
Water Source Information
Your
water comes from
|
Source Water Type |
|
|
WELL 3 |
Ground Water |
|
WELL 2 |
Ground Water |
The State of Vermont Water Supply Rule requires Public
Community Water Systems to develop a Source Protection Plan. This plan delineates a source protection area
for our system and identifies potential and actual sources of
contamination. Please contact us if you
are interested in reviewing the plan.
Drinking Water Contaminants
The sources of drinking water
(both tap water and bottled water) include surface water (streams, lakes) and
ground water (wells, springs). As water travels over the land’s surface or
through the ground, it dissolves naturally-occurring minerals. It also picks up
substances resulting from the presence of animals and human activity. Some
“contaminants” may be harmful. Others, such as iron and sulfur, are not
harmful. Public water systems treat water to remove contaminants, if any are
present.
In order to ensure that your
water is safe to drink, we test it regularly according to regulations
established by the U.S. Environmental Protection Agency and the State of
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 storm water runoff, industrial or
domestic wastewater discharges, oil and gas production, mining or farming.
Pesticides and herbicides, may come from a variety of sources such as storm
water run-off, agriculture, and residential users.
Radioactive contaminants, which can be naturally occurring or the result of
mining activity.
Organic contaminants, including synthetic and volatile organic chemicals,
which are by-products of industrial processes and petroleum production, and
also come from gas stations, urban storm water run-off, and septic systems.
Water Quality
Data
The
table below lists all the drinking water contaminants that we detected during
the past year. It also includes the date and results of any contaminants that
we detected within the past five years if tested less than once a year. The
presence of these contaminants in the water does not necessarily show that the
water poses a health risk.
Terms
and abbreviations - In this table you may find terms you might not be
familiar with. To help you better understand these terms we have provided the
following definitions:
Maximum Contamination Level
Goal (MCLG): The “Goal” is the level of
a contaminant in drinking water below which there is no known or expected risk
to human health. MCLG’s allow for a
margin of safety.
Maximum Contamination Level (
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
disinfectants in controlling microbial contaminants.
Maximum Residual
Disinfectant Level (MRDL): The
highest level of a disinfectant allowed in
drinking water.
Addition of a disinfectant may help control microbial contaminants.
Action Level (AL): The concentration of a contaminant which, if
exceeded, triggers treatment or other requirements which a water system must
follow.
90th Percentile: Ninety
percent of the samples are below the action level. (Nine of ten sites sampled
were at or below this level).
Treatment Technique (TT): A process aimed to reduce the level of a contaminant
in drinking water.
Parts per million (ppm) or Milligrams per liter (mg/l): (one penny
in ten thousand dollars)
Parts per
billion (ppb) or Micrograms per liter (µg/l): (one penny in ten million dollars)
Picocuries per liter(pCi/L): a
measure of radioactivity in water
Nephelometric Turbidity Unit (NTU): NTU is a measure of the clarity of
water. Turbidity in excess of 5 NTU is
just noticeable to the average person.
Running Annual Average (RAA): The average of 4 consecutive quarters
(when on quarterly monitoring); values in table represent the highest RAA for
the year.
Detected
Contaminants MORRISVILLE WATER AND LIGHT
|
Result |
|
MCLG |
Typical Source |
|
|
No
Detected Results were Found in the Calendar Year of 2010 |
||||
|
Collection Date |
Highest Value |
Range |
Unit |
|
MCLG |
Typical Source |
|
|
FLUORIDE |
4/29/2010 |
0.82 |
0.82 |
ppm |
4 |
4 |
Erosion of natural deposits; Water additive which promotes strong
teeth; Discharge from fertilizer and aluminum factories |
|
NITRATE |
12/16/2010 |
0.6 |
0.6 |
ppm |
10 |
10 |
Runoff from fertilizer use;
Leaching from septic tanks, sewage; Erosion of natural deposits |
|
Collection Date |
Highest Value |
Range |
Unit |
|
MCLG |
Typical Source |
|
|
COMBINED
RADIUM (-226 & -228) |
3/26/2009 |
1.2 |
1.2 |
pCi/L |
5 |
0 |
Erosion of natural deposits |
|
RADIUM-228 |
3/26/2009 |
1.2 |
1.2 |
PCI/L |
5 |
0 |
|
|
Monitoring Period |
RAA |
Range |
Unit |
|
MCLG |
Typical Source |
|
|
TOTAL
TRIHALOMETHANES |
2010 |
2 |
2.8 - 4.6 |
ppb |
80 |
0 |
By-product of drinking water
chlorination |
|
Date |
90th Percentile |
95th Percentile |
Range |
Unit |
AL |
Sites Over AL |
Typical Source |
|
|
COPPER |
2008 - 2010 |
0.69 |
0.8 |
0.036 - 0.81 |
ppm |
1.3 |
0 |
Corrosion of household plumbing
systems; Erosion of natural deposits; Leaching from wood preservatives |
|
LEAD |
2008 - 2010 |
1 |
1 |
1 |
ppb |
15 |
0 |
Corrosion of household plumbing
systems; Erosion of natural deposits |
Violation(s) that occurred
during the year
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 our drinking
water meets health standards. The below table lists any drinking water
violations we incurred during 2010. A
failure to perform required monitoring means we cannot be sure of the quality
of our water during that time.
|
Category |
Analyte |
Compliance Period |
|
|
No
Violations Occurred in the Calendar Year of 2010 |
|||
Additional information
(including steps taken to correct any violations listed above)
Health information regarding drinking water
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/CDC guidelines on appropriate
means to lessen the risk of infection by cryptosporidium and other
microbiological contaminants are available from EPA’s Safe Drinking Water
Hotline (1-800-426-4791).
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 the water poses a
health risk. More information about contaminants and potential health effects
can be obtained by calling the Safe Drinking Water Hotline.
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.
MORRISVILLE WATER AND LIGHT 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 drinking 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.
There are no
additional required health effects notices.
Distribution information
Please share this information with all the other people who drink this water, especially those who may not have received this notice directly (for example, people in apartments, nursing homes, schools, and businesses). You can do this by posting this notice in a public place and distributing copies by hand or mail.