City Light, Gas and Water
PWS ID# MO 4010417
This report is intended to
provide you with important information about your drinking water and the
efforts made to provide safe drinking water.
At City Light, Gas
& Water, the quality and safety of the water we produce for our customers
is a top priority. Specialists in our
own lab perform several tests daily to make certain our water is meeting
quality standards. In addition to our
own tests, we send at least ten samples per month to the State Department of
Health Lab for bacteriological evaluation.
Other samples are sent less frequently for a myriad of other tests
ranging from Alkalinity to Zinc.
City Light, Gas &
Water is pleased to report NO VIOLATIONS
of MCL, Monitoring, or treatment technique for this report.
The sources of drinking water (both tap
water and bottled water) include rivers, lakes, streams, ponds, reservoirs,
springs and groundwater 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.
Kennett’s water
supply is taken from four ground water wells that extend 90 to 100 feet below
the surface. These wells have a combined
yield of over 3,000 gallons per minute.
The water produced by these wells is of naturally high
quality and free from harmful levels of chemicals and bacteria. However it does contain levels of iron and
dissolved calcium which makes treatment of the water necessary to remove excess
levels of these substances. After the
water has undergone treatment at the plant, it is pumped to the distribution system
for storage into one of six water tanks for consumption by you, our customers. The
tanks have a
total storage capacity of 2.2 million gallons of water for the City of
The Department of
Natural Resources conducted an assessment of our source water to determine its
susceptibility to contamination. The
assessment is a three-step process of identifying an area around our well
head(s), inventorying potential sources of contaminants within that area (a one-half
mile radius around the wellhead(s)) and a look at the adequacy of well
construction. The assessment can be used
to develop a wellhead protection program to protect this valuable
resource. If you want to know more about
the assessment or wish to participate on a watershed protection team to protect
this valuable resource, then please call 573-888-5366.
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 (800-426-4791).
Contaminants that may be present in source water include:
A.
Microbial contaminants, such as viruses
and bacteria, which may come from sewage treatment plants, septic systems,
agricultural livestock operations, and wildlife.
B.
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.
C.
Pesticides and herbicides, which may
come from a variety of sources such as agriculture, urban stormwater runoff,
and residential uses.
D.
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.
E.
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, the Department of Natural Resources prescribes
regulations which limit the amount of certain contaminants in water provided by
public water systems. Department of
Health regulations establish limits for contaminants in bottled water which
must provide the same protection for public health.
The Missouri Department of Natural
Resources regulates our water system and requires us to test our water on a
regular basis to ensure its safety. Our
system has been assigned the identification number MO4010417 for the purposes
of tracking our test results. Last year,
we tested for a variety of contaminants.
The detectable results of these tests are show on the following page.
Additional
Information:
Some
people may be more vulnerable to contaminants in drinking water that 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 microbial contaminants are
available from the Safe Drinking Water Hotline (800-426-4791).
If
you would like more information about the decision-making process that affect
drinking water quality or if you have further questions about your drinking
water report, call CLGW at 573-888-5366 to inquire about scheduled meetings or
contact persons.
Contaminants Report
Definitions:
MCLG:
Maximum Contaminant Level Goal, or the level of a contaminant in drinking water
below which there is no known or expected risk to health. MCLGs allow for a margin of safety. MCL:
Maximum Contaminant Level, or 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.
Abbreviations:
PPB: parts per billion or micrograms per
liter. ppm: parts per million or milligrams per
liter. n/a: not applicable. NTU:
Nephelometric Turbidity Unit, used to measure cloudiness in drinking
water. MFL: Million fibers per liter, used to measure
asbestos concentration. nd: not detectable at testing limits.
The state has reduced monitoring requirements for certain
contaminants to less often than once per year because the concentrations of
these contaminants are not expected to vary significantly from year to
year. Records with a sample year more
than one year old are still considered representative.
Regulated
Contaminants
|
Inorganic |
Units |
MCL |
MCLG |
Level Found |
Range of Detections |
Violation |
Sources |
||
|
Barium |
ppm |
2 |
2 |
0.2910 |
0.291 |
No |
Discharge of drilling wastes;
Discharge from metal refineries; Erosion of natural deposits |
||
|
Fluoride |
ppm |
4 |
4 |
0.9017 |
0.58-1.3 |
No |
Erosion of natural deposits; Water additive which promotes strong teeth:
discharge from fertilizer and aluminum factories |
||
|
Disinfection By-Products |
Units |
MCL |
MCLG |
Level Found |
Range of Detections |
Violation |
Sources |
|
TTHM’s |
ppb |
80 |
n/a |
14.4000 |
14.4 |
No |
By-product of
drinking water chlorination |
|
Copper |
|||||||||
|
Collection
Period |
Units |
Action
Level |
90th
Percentile |
Sites
exceeding |
Sources |
||||
|
1/1/2004-12/31/2004 |
ppm |
|
0.031 |
0 |
Corrosion of
household plumbing systems; Erosion of natural deposits; Leaching from wood
preservatives |
||||
|
|
|||||||||
|
Coliform |
|||||||||
|
The MCL for total coliform is
determined by the number of samples taken per month. Systems that collect less than 40 samples
per month are in violation if more than one sample tests positive. Systems that collect more than 40 samples
per month are in violation if 5% or more of the samples test positive. |
|||||||||
|
#
Positive |
%
Positive |
Month |
Violation |
Sources |
|||||
|
1 |
0 |
10 |
No |
Naturally
present in the environment |
|||||
Unregulated
Our water system
participated in the Unregulated Contaminant monitoring required by the
Environmental Protection Agency (EPA).
This special monitoring helps EPA decide if new contaminants of concern
are found in drinking water at levels that need to be controlled. We did not detect any of these unregulated
contaminants in our water. If you want
to review the individual results of the monitoring, please contact us at 573-888-5633
or go to our web site at www.clgw.net.
City Light,
Gas and Water
PWS ID# MO
4010417
Optional Monitoring (not required by EPA)
Monitoring is not required for optional contaminants.
Inorganic
|
|
Units |
Level Found |
|
|
Alkalinity, CACO3 Stability |
ppm |
90.3000 |
90.3 |
|
Alkalinity, Total |
ppm |
166.0000 |
166 |
|
Aluminum |
ppb |
165.0000 |
165 |
|
Calcium |
ppm |
61.3000 |
61.3 |
|
Chloride |
ppm |
9.5600 |
9.56 |
|
Hardness,
Carbonate |
ppm |
191.0000 |
191 |
|
Iron |
ppb |
28.9000 |
28.9 |
|
Magnesium |
ppm |
9.2500 |
9.25 |
|
Manganese |
ppb |
4.3700 |
4.37 |
|
PH |
|
7.4900 |
7.49 |
|
Potassium |
ppm |
2.8800 |
2.88 |
|
Sodium |
ppm |
8.9600 |
8.96 |
|
Solids, Total
Dissolved (TDS) |
ppm |
220.0000 |
220 |
|
Sulfate |
ppm |
20.9000 |
20.9 |
|
Zinc |
ppb |
77.0000 |
77 |
Volatile Organic
|
|
Units |
Level Found |
|
|
Bromodichloromethane |
ppb |
3.4900 |
3.49 |
|
Bromoform |
ppb |
1.1900 |
1.19 |
|
Chlorodibromomethane |
ppb |
3.0300 |
3.03 |
|
Chloroform |
ppb |
6.7400 |
6.74 |