2007 Annual Macon Water Quality Report
MO2010487
(Consumer Confidence Report)
This
report is intended to provide you with important information about your
drinking water and the efforts made to provide safe drinking water.
What
is the source of my water?
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 pickup
substances resulting from the presence of animals or from human activity.
Our
water comes from the following source(s):
|
Source Name
|
Type
|
|
|
|
|
LONG BRANCH
LAKE
|
Surface Water
|
Why are
there contaminants in my 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 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 storm
water 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 storm water
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 storm water 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.
Is our water system meeting other rules that
govern our operations?
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 MO2010487 for the purposes
of tracking our test results. Last year,
we tested for a variety of contaminants.
The detectable results of these tests are on the following pages of this
report. Any violations of state
requirements or standards will be further explained later in this report.
How might I become actively involved?
If you
would like to observe the decision-making process that affects drinking water
quality or if you have any further questions about your drinking water report,
please call us at 660-385-6421 to inquire about scheduled meetings or contact
persons.
Do I
need to take any special precautions?
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
microbial contaminants are available from
the Safe Drinking Water Hotline (800-426-4791).
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.
AL: Action Level, or the concentration of a
contaminant which, when exceeded, triggers treatment or other requirements
which a water system must follow...
TT: Treatment Technique or a required process
intended to reduce the level of a contaminant in drinking water.
90th Percentile: For lead and copper
testing. 10% of test results are above
this level and 90% are below this level.
Level Found: is the average of all test
results for a particular contaminant.
Range of Detections: Shows
the lowest and highest levels found during a testing period, if only one sample
was taken, then this number equals the Level Found.
MRLDG: Maximum Residual
Disinfectant Level Goal, or the level of a drinking water disinfectant below
which there is no known or expected risk to health.
MRDL: Maximum Residual
Disinfectant Level, or the highest level of a disinfectant allowed in drinking
water.
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
|
10/16/2007
|
0.0694
|
0.0694
|
ppm
|
2
|
2
|
Discharge
of drilling wastes; Discharge from metal refineries; Erosion of natural
deposits
|
|
FLUORIDE
|
9/12/2007
|
1.3
|
0.78 – 1.3
|
ppm
|
4
|
4
|
Natural
deposits; Water additive which promotes strong teeth
|
|
NITRATE+NITRITE (AS N)
|
6/14/2007
|
0.54
|
0.54
|
ppm
|
10
|
10
|
Runoff
from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural
deposits
|
|
Disinfection By Products
|
Monitoring Period
|
RAA
|
Range
|
Unit
|
MCL
|
MCLG
|
Typical Source
|
|
TOTAL HALOACETIC ACIDS
(HAA5)
|
2007
|
28.27459
|
14 – 47.6
|
ppb
|
60
|
0
|
By-product of drinking water disinfection
|
|
TOTAL TRIHALOMETHANES
(TTHM)
|
2007
|
46.96452
|
14.4 - 104
|
ppb
|
80
|
0
|
By-product of drinking water chlorination
|
|
|
Collection Date
|
Highest Value
|
Range
|
Unit
|
MCL
|
MCLG
|
Typical Source
|
|
CARBON, TOTAL ORGANIC (TOC)
|
5/22/2007
|
8.17
|
3.37 – 8.17
|
ppm
|
|
|
Naturally present in the environment
|
|
CHLORITE
|
2/12/2007
|
0.46
|
0.07 – 0.46
|
ppm
|
1
|
0.8
|
By-product of drinking water chlorination
|
|
Lead and Copper
|
Date
|
90TH Percentile
|
Range
|
Unit
|
AL
|
Sites
Over AL
|
Typical Source
|
|
|
|
|
|
|
|
|
|
|
COPPER
|
2005 - 2007
|
0.0428
|
0.0124 – 0.0528
|
ppm
|
1.3
|
0
|
Corrosion of household
plumbing systems
|
|
LEAD
|
2005 - 2007
|
2.7
|
1.29 - 8
|
ppb
|
15
|
0
|
Corrosion of household
plumbing systems
|
|
Microbiological
|
Result
|
MCL
|
MCLG
|
Typical Source
|
|
No Detected Results were
Found in the Calendar Year of 2007
|
Turbidity
Turbidity is a measure of
cloudiness of water. We monitor turbidity because it is a good
indicator of the effectiveness of our filtration system.
Percentage of samples in compliance with Std: 100 Month
occurred: 12
Violation:
No
Highest Single Measurement for the
year: .22
Month
Occurred: April
Sources: Soil
Runoff
During the 2007 calendar year, we had the below noted
violation(s) of drinking water regulations.
There are no additional required health effects notices.
There are no additional required health effects violation
notices.