|
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
|
0.10ppm
|
10/09/03
|
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
|
54.8ppb
|
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) |
1.3ppm |
0.147 ppm |
1.3 ppm |
0 |
6/27/01 |
Corrosion of household plumbing systems, erosion of natural deposits, leaching from wood preservatives |
N |
| Lead (tap water) |
0 ppb |
3 ppb |
15 ppb |
1 |
6/27/01 |
Corrosion of household plumbing systems, erosion of natural deposits |
N |
| SUBSTANCE |
MCLG |
MCL |
RESULTS |
|
DATE |
SOURCE |
AL VIOLATION
Y/N |
| Radionuclides |
| Alpha Emitters |
- |
15 pCi/L |
4.0 pCi/L |
|
12/01/03 |
Naturally occurring or the result of oil and gas production and mining activities |
N |
| Radium 226 |
- |
5 pCi/L |
1.2 pCi/L |
|
12/01/03 |
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 |
-
|
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 |
| |
|
|
|
|
|
|
| Notes |
|
*Although this report concerns 2003 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, 2003. 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 compounds detected in Bonita Spring’s water since the year 2001. 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.
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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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