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Maximum
Contaminant Level (MCL's) are set at very stringent levels for
health effects. To understand the possible health effects described
for many regulated constituents, a person would have to drink 2
liters of water every day at the MCL level for a lifetime to have
a one-in-a-million chance of having the described health effect.
Thank you for allowing us to continue providing your family with
clean, quality water this year. In order to maintain a safe and
dependable water supply we sometimes need to make improvements
that will benefit all of our customers. These improvements are
sometimes reflected as rate structure adjustments. Thank you for
your understanding.
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 for 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 the Safe
Drinking Water Hotline (800-426-4791).
Contaminants that may be present in source water include:
- Microbial
contaminants, such as viruses and bacteria, which may come from
sewage treatment plants,
septic system, 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 organic chemicals,
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. Food and Drug Administration regulations
establish limits for contaminants in bottled water which must provide
the same protection. IMPORTANT HEALTH INFORMATION
NITRATE: Nitrate
in drinking at levels above 10 ppm is a health risk for infants
of less than six months of age. High Nitrate levels in drinking
water can cause blue baby syndrome. Nitrate levels may rise
quickly for short periods of time because of rainfall or agricultural
activity. If you are caring for an infant, you should ask for advice
from your health care provider.
LEAD: Infants and young
children are typically more vulnerable to lead in drinking
water than the general population. It is possible that lead
levels at your home may be higher than at other homes in the
community as a result of the material used in your homes plumbing.
If you are concerned about elevated lead levels in your homes
water, you may wish to have your water tested and flush your
tap for 30 seconds to 2 minutes before using tap water. Additional
information is available from the Safe
Drinking Water Hotline or by calling (1-800-426-4791). Water
Quality Data
In this table
you will find many terms and abbreviations you might not be familiar
with. To help you better understand these terms we've provided
the following definitions:
Parts per million (ppm) or Milligrams per
liter (mg/l)-one part per million corresponds to one minute
in two
years or a single penny in $10,000.
Parts per billion (ppb) or Micrograms per liter-one
part per billion corresponds to one minute in 2,000 years, or a single penny
in $10,000,000.
Nephelometric Turbidity Unit (NTU)-nephelometric
turbidity unit is a measure of the clarity of water. Turbidity in excess
of 5 NTU is just noticeable to the average person.
Action Level- the concentration
of a contaminant which, if exceeded, triggers treatment or other requirements
which a water system must follow.
Treatment Technique (TT)- A treatment
technique is a required process intended to reduce the level of a contaminant
in drinking water.
Maximum Contaminant Level-The "Maximum
Allowed" (MCL) is 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- The "Goal" (MCLG)
is the level of a contaminant in drinking water below which there is no known
or expected risk to health. MCLGs allow a margin of safety.
TEST
RESULTS |
| Microbiological
Contaminants |
Contaminant
(Unit of
measurement)
|
Violation
Y/N |
Level
Detected |
Range |
MCLG |
MCL |
Likely
Source of Contamination |
| 1.
Total Coliform Bacteria |
N |
0.0 |
0 |
0 |
Presence
of Coliform Bact. in 5% of Monthly samples. |
Naturally
present in the enviroment. |
| 3.
Turbidity (ntu) |
N |
0.235
7/14/03 |
(b) |
100% |
TT |
Soil
Runoff |
| Inorganic
Contaminants |
Contaminant
(Unit of
measurement) |
Violation
Y/N |
Level
Detected |
Range |
MCLG |
MCL
|
Likely
Source of Contamination |
| 10.
Barium (ppm) |
N |
0.22
2000 |
(a) |
2 |
2 |
Discharge
of drilling wastes;
discharge from metal refineries;
erosion af natural deposits |
| 16.
Fluoride (ppm) |
N |
1.24
2004 |
(a) |
4 |
4 |
Erosion
of natural deposits; water
additive which promotes strong teeth; discharge from fertilizer and aluminum
factories. |
19.
Nitrate
(as Nitrogen) (ppm)
|
N |
0.58
2003 |
(a) |
10 |
10 |
Runoff
from fertilizer use; leaching
from septic tanks, sewage; erosion of natural deposits |
| 17.
Lead (ppb) |
N |
0
2004
|
(c) |
15 |
0 |
Corrosion
of household plumbing
systems; erosion of natural deposits. |
| 14.
Copper (mg/l) |
N |
0.089
2004 |
(c) |
1 |
1 |
Corrosion
of household plumbing
systems; erosion of natural deposits;
leaching from wood preservatives. |
Footnotes:
(a) Only one sample required.
(b) The lowest monthly percentage of samples meeting the turbidity limits specified
in 141.73.
All samples met the turbidity limits.
(c) None of the 20 samples we collected exceeded the action level. |
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