|
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 monthly samples
|
Total of 3 samples in 2005 (<3% of any monthly samples)
|
1 Sample in July and 2 samples in September
|
Naturally present in the
environment |
N |
| Inorganic
Compounds |
| Arsenic |
0 ppb
|
10 ppb
|
1.0 ppb
|
3/29/05
|
Erosion of natural deposits; run-off from orchards; run-off from glass and electronics production wastes |
N |
| Barium |
2000 ppm
|
2000 ppm
|
17 ppm
|
3/29/05
|
Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits |
N |
| Cyanide |
200 ppm
|
200 ppm
|
6 ppm
|
3/29/05
|
Discharge from steel/metal factories; discharge from plastic and fertilizer factories |
N |
| Fluoride |
4 ppm
|
4 ppm
|
0.5 ppm
|
3/29/05
|
Erosion of natural deposits; water additive that promotes strong teeth; discharge from fertilizer and
aluminum factories |
N |
| Nitrate** |
10 ppm
|
10 ppm
|
0.07 ppm
|
4/4/05
|
Runoff from fertilizer use; leaching from septic tanks; sewage; erosion of natural deposits |
N |
| Sodium*** |
0 ppm
|
160 ppm
|
80.1 ppm
|
3/29/05
|
Salt water intrusion; leaching
from soil |
N |
| Volatile
Organic Contaminants |
| Total THMs |
0 ppb
|
80 ppb
|
26.1 ppb
|
Quarterly Samples
|
By-product of drinking water chlorination |
N |
| Haloacetic Acids (HAA5) |
0 ppb
|
60 ppb
|
14.1p pb
|
Quarterly Samples
|
By-product of drinking water
chlorination |
N |
| SUBSTANCE |
MCLG |
90th PERCENTILE
RESULT |
AL
(ACTION LEVEL) |
SAMPLE SITES EXCEEDING THE AL |
DATE |
SOURCE |
AL VIOLATION
Y/N |
| Lead and
Copper (Tap Water) |
| Copper (tap water) |
1.3 ppm |
0.104 ppm
|
1.3 ppm |
0 |
6/05
|
Corrosion of household plumbing systems, erosion of natural deposits, leaching from wood preservatives |
N |
| Lead (tap water) |
0 ppb |
2 ppb |
15 ppb |
1 |
6/05
|
Corrosion of household plumbing systems, erosion of natural deposits |
N |
| SUBSTANCE |
MCLG |
MCL |
RESULTS |
DATE |
SOURCE |
MCL VIOLATION
Y/N |
| Radionuclides |
| Alpha Emitters |
- |
15 pCi/L |
2.4 pCi/L |
4/15/04 |
Naturally occurring or the result of oil and gas production and mining activities |
N |
| Radium 226 |
- |
5 pCi/L |
1.2 pCi/L |
4/15/04 |
Naturally occurring or the result of oil and gas production and mining activities |
N |
SECONDARY STANDARDS |
| SUBSTANCE |
MCLG |
MCL |
RESULTS |
DATE* |
SOURCE |
MCL
VIOLATION
Y/N |
| Secondary
Contaminants |
| Chloride |
-
|
250 ppm
|
90 ppm
|
3/29/05
|
Natural occurrence from soil
leaching |
N |
| Color |
-
|
15 color units
|
14 color units
|
3/29/05 & 4/27/05
|
Naturally
occurring organics |
N |
| Sulfate |
-
|
250 ppm
|
39 ppm
|
3/29/05
|
Natural occurrence from soil
leaching |
N |
| Total Dissolved
Solids |
-
|
500 ppm
|
442 ppm
|
4/29/05 & 4/27/05
|
Natural occurrence from soil
leaching |
N |
| Foaming Agents |
- |
0.5 ppm |
0.061 ppm |
3/29/05 |
Pollution from soaps and detergents |
N |
| |
|
|
|
|
|
|
| Notes |
|
*Although this report concerns 2005 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 80.1 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, 2005. 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.
Some analyses are required to be performed only once every three years. Therefore
compounds detected in Bonita Spring’s water since the year 2003 are listed. 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 did
not detect.
[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.
MRDL (Maximum Residual Disinfectant Level) - The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
MRDLG (Maximum Residual Disinfectant Level Goal) - The level of a drinking water disinfectant below which there is no known or expected risk of health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contaminants.
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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