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.
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 four water tanks for
consumption by you, our customers. Three
of these tanks are elevated and one is ground storage.
The tanks have a
total storage capacity of 2.1 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 by looking 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. Any
violations of state requirements or standards will be further explained later
in this report.
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
|
Regulated
Contaminants |
Collection Date |
Highest Value |
Range |
Unit |
MCL |
MCLG |
Typical Source |
|
BARIUM |
08/21/2006 |
0.133 |
0.133 |
ppm |
2 |
2 |
Discharge
of drilling wastes; Discharge
from metal refineries; Erosion
of natural deposits |
|
FLUORIDE |
10/15/2007 |
1.7 |
0.8
– 1.7 |
ppm |
4.0 |
4 |
Natural
deposits; Water additive which promotes strong teeth. |
|
Disinfection By-Products |
Monitor Period |
RAA |
Range |
Unit |
MCL |
MCLG |
Typical Sources |
|
TOTAL HALOACETIC ACIDS (HAA5) |
2008 |
9.4 |
9.4 |
ppb |
60.000 |
0 |
By-product of drinking water disinfection
|
|
TOTAL TRI- HALOMETHANES (TTHM) |
2008 |
11.6 |
11.6 |
ppb |
80 |
0 |
By-product of drinking water chlorination |
|
Lead and Copper |
Date |
90th Percentile |
Range |
Unit |
|
Sites Over |
Typical Sources |
|
COPPER |
2005- 2007 |
0.034 |
0.00675 –
0.0486 |
ppm |
1.3 |
0 |
Corrosion of household plumbing
systems |
|
LEAD |
2005- 2007 |
0.1 |
1.66- 9.44 |
ppb |
15 |
0 |
Corrosion of household plumbing systems |
|
Microbiological |
Result |
MCL |
MCLG |
Typical Source |
|
No
Detected Results were found in the Calendar Year of 2008 |
||||
Violations and Health Effects
Information
During the 2008 calendar year, there were NO VIOLATIONS of drinking water
regulations.
Unregulated Contaminants
Unregulated
contaminants are those for which the EPA has not established drinking water
standards. The purpose of unregulated
contaminant monitoring is to assist the EPA in determining the occurrence of
unregulated contaminants in drinking water and whether future regulation is
warranted. Information on all the
contaminants that were monitored, whether regulated or unregulated, can be
obtained by contacting us at 573-888-5366 or visit our website 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.
|
Secondary
Contaminants |
Collection Date |
Highest Value |
Range |
Unit |
MCL |
MCLG |
Typical Source |
|
ALKALINITY, TOTAL |
10/15/2007 |
130 |
130 |
MG/L |
|
|
|
|
CALCIUM |
8/21/2006 |
15.3 |
15.3 |
MG/L |
|
|
|
|
CARBON, TOTAL ORGANIC (TOC) |
10/15/2007 |
0.77 |
0.63- 0.77 |
ppm |
|
|
Naturally present in the environment |
|
CHLORIDE |
8/21/2006 |
12.2 |
12.2 |
MG/L |
250 |
|
|
|
HARDNESS, CARBONATE |
8/21/2006 |
75.2 |
75.2 |
MG/L |
|
|
|
|
IRON |
8/21/2006 |
0.03 |
0.03 |
MG/L |
0.3 |
|
|
|
MAGNESIUM |
8/21/2006 |
8.99 |
8.99 |
MG/L |
|
|
|
|
MANGANESE |
8/21/2006 |
0.00447 |
0.00447 |
MG/L |
0.05 |
|
|
|
METHYL TERT- BUTYL ETHER (MTBE) |
8/21/2006 |
24.5 |
10.4- 24.5 |
UG/L |
|
|
|
|
PH |
8/21/2006 |
8.16 |
8.16 |
PH |
|
|
|
|
POTASSIUM |
8/21/2006 |
3.38 |
3.38 |
MG/L |
|
|
|
|
SODIUM |
8/21/2006 |
11 |
11 |
MG/L |
|
20 |
|
|
SOLIDS, TOTAL DISSOLVED (TDS) |
8/21/2006 |
141 |
141 |
MG/L |
500 |
|
|
|
SULFATE |
8/21/2006 |
20.8 |
20.8 |
MG/L |
250 |
|
|
|
ZINC |
8/21/2006 |
0.0096 |
0.0096 |
MG/L |
5 |
|
|