|
PRIMARY STANDARDS
|
| SUBSTANCE |
MCLG |
MCL |
RESULTS |
DATE* |
SOURCE |
MCL
VIOLATION
Y/N |
| Microbiological
Contaminants |
| Total Coliform
Bacteria |
0 samples
|
Present in 5% or greater
of montly samples
|
1 sample <2% of monthly
samples
|
3 samples throughout
the year
|
Naturally present in the
environment |
N |
| Inorganic
Compounds |
| Beryllium |
4ppb
|
4ppb
|
0.5ppb
|
4/16/02
|
Discharge from metal refineries
and coal-burning factories, discharge from
electrical, aerospace and
defense industries |
N |
| Fluoride |
4ppm
|
4ppm
|
0.328ppm
|
4/16/02
|
Erosion of natural deposits,
water additive which promotes strong teeth,
discharge from fertilizer and
aluminum factories |
N |
| Nitrate** |
10ppm
|
10ppm
|
0.05ppm
|
4/16/02
|
Runoff from fertilizer use;
leaching from septic tanks; sewage; erosion
of natural deposits |
N |
| Sodium*** |
0ppm
|
160ppm
|
60.8ppm
|
4/16/02
|
Salt water intrusion; leaching
from soil |
N |
| Volatile
Organic Contaminants |
| Total THMs |
0ppb
|
80ppb
|
57.8ppb
|
Quarterly Samples
|
By-product of drinking water
chlorination |
N |
| SUBSTANCE |
DATE* |
90th PERCENTILE
RESULT |
SAMPLING SITES
EXCEEDING THE AL |
MCLG |
AL
(ACTION LEVEL) |
SOURCE |
AL VIOLATION
Y/N |
| Lead and
Copper (Tap Water) |
| Copper (tap
water) |
6/27/01
|
0.147 ppm
|
0
|
1.3ppm
|
1.3ppm
|
Corrosion of household plumbing systems,
erosion of natural deposits, leaching from
wood preservatives |
N |
| Lead (tap
water) |
6/27/01
|
3ppb
|
1
|
0ppb
|
15ppb
|
Corrosion of household plumbing systems,
erosion of natural deposits |
N |
SECONDARY STANDARDS |
| SUBSTANCE |
MCLG |
MCL |
RESULTS |
DATE* |
SOURCE |
MCL
VIOLATION
Y/N |
| Secondary
Contaminants |
| Chloride |
-
|
250ppm
|
105ppm
|
4/16/02
|
Natural occurrence from soil
leaching |
N |
| Color |
-
|
15 color units
|
12 color units
|
4/16/02
|
Naturally
occurring organics |
N |
| Sulfate |
-
|
250ppm
|
65ppm
|
4/16/02
|
Natural occurrence from soil
leaching |
N |
| Total Dissolved
Solids |
-
|
500ppm
|
304ppm
|
4/16/02
|
Natural occurrence from soil
leaching |
N |
| Foaming Agents |
-
|
0.5ppm
|
0.199ppm
|
4/16/02
|
Pollution from soaps and detergents |
N |
|
*Although this report concerns 2002 water
quality, some water contaminants are required
to be tested only once every three years.
This chart shows the most recent laboratory
test date.
**Nitrate - Infants below the age of six
months who drink water containing nitrate
in excess of the MCL could become seriously
ill and, if untreated, may die. Symptoms
include shortness of breath and blue baby
syndrome.
***Sodium - The Florida Department of
Environmental Protection (DEP) has set the
drinking water standard for sodium at 160
parts per million (ppm) to protect individuals
who are susceptible to sodium-sensitive
hypertension or diseases that cause difficulty
in regulating body fluid volume. Sodium
is monitored so that individuals who have
been placed on sodium (salt) restricted
diets may take into account the sodium in
their drinking water. Drinking water contributes
only a small fraction (less than 10 percent)
to the overall sodium intake. Sodium levels
in drinking water can be increased by ion-exchange
softeners at water treatment facilities
or certain point-of-use treatment devices.
If you have been placed on a sodium-restricted
diet, please inform your physician that
our water contains 60.8 ppm of sodium.
|
HOW TO READ THIS TABLE
Bonita Springs Utilities routinely monitors
for contaminants in your drinking water
according to federal and state laws.
The following table shows the results
of our water quality analysis from January
1 through December 31, 2002. Every regulated
contaminant that we detected in the water,
even in the most minute traces, is listed
here. The table contains the name of each
substance, the highest level allowed by
regulation (MCL), the ideal goals for public
health (MCLG), the amount detected and the
usual key to the units of measurements.
Listed are thirteen compounds detected
in Bonita Springs water during the calendar
year 2002. The EPA requires that the highest
value detected during the calendar year
be provided in this report. Not listed are
the hundreds of other compounds for which
we tested but were not detected.
[top]
TABLE
KEY DEFINITIONS
MCL (Maximum Contaminant Level)
- The highest level of a contaminant that
is allowed in drinking water. MCLs are set
as close to the Maximum Contaminant Level
Goals as feasible using the best available
treatment technology.
MCLG (Maximum Contaminant Level
Goal) - The level of contaminant in drinking
water below which there is no known or expected
risk to health. MCLGs allow for a margin
of safety.
AN EXPLANATION - MCLs are set at
very stringent levels. To understand the
possible health effects described for many
regulated contaminants, a person would have
to drink two liters of water a day at the
MCL level for a lifetime to have a one-in-a-million
chance of having the described health effect.
ppm - Parts per million. One part
per million is the equivalent of one cent
in $10,000.
ppb - Parts per billion. One part
per billion is the equivalent of one cent
in $10,000,000.
AL - The Action Level is the concentration
of a contaminant that, if exceeded, triggers
treatment or other requirements that a water
system must follow.
pCi/L - Picocuries per liter is
a measure of the radioactivity in water.
ND - Means not detected and indicates
that the substance was not found by laboratory
analysis.
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