We are pleased to provide you with this year's Annual Water
Quality Report also known by the federal acronym CCR (Consumer Confidence
Report). We want to keep you informed about the excellent water and services we
have delivered to you over the past year. Our goal is, and always has been, to
provide to you a safe and dependable supply of drinking water. The wells that
serve your area draw water from the Rathdrum Prairie Aquifer.
Our drinking water is safe and meets federal and state
requirements.
If you have any questions about this report or concerning your
water utility, please contact Mike Galante, District Manager at (208)
772-3619. If you want to learn more, please
attend any of our regularly scheduled Board meetings that are held at 12:30
PM
on
the first and third Thursday of each month at the District office:
North Kootenai Water District monitors for
contaminants in your drinking water according to Federal and State laws. The
table below shows the results of our monitoring for the period of January 1 to December
31, 2007. As water travels over the
Land or underground it can pick up
contaminants such as microbes, inorganic and organic chemicals, and radioactive
substances. All drinking water, including bottled drinking water, may be
reasonably expected to contain at least small amounts of some contaminants.
It’s important to remember that the presence of these contaminants does not
necessarily pose a health risk.
In the following table you will find some terms and abbreviations
that you may not be familiar with. To help you better understand these terms
we've provided the following definitions:
Action Level
- the concentration of a contaminant that, if exceeded, triggers treatment or
other requirements that a water system must follow.
Maximum
Contaminant Level (MCL) - The “Maximum Allowed” is 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.
Maximum
Contaminant Level Goal (MCLG) - The “Goal” is 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.
Non-Detects (ND) - laboratory
analysis indicates that the constituent is not present.
Parts per million
(ppm) or Milligrams per liter (mg/l) - one part per
million corresponds to one minute in two years or a single penny in $10,000.
Parts per billion
(ppb) or Micrograms per liter - one part per
billion corresponds to one minute in 2,000 years, or a single penny in
$10,000,000.
Picocuries per liter (pCi/L)
- picocuries per liter is a
measure of the radioactivity in water.
Variances &
Exemptions (V&E) - State or EPA permission not to meet a
MCL or a treatment technique under certain conditions.
|
Inorganic Contaminants |
MCL |
MCLG |
Our Water |
|
Sample
Date |
Violation? |
Typical
Source of Contaminant
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Barium well #1 Well
#3
|
2 ppm |
2 ppm |
0.11
ppm .15 ppm |
Na |
7/01 12/07 |
No |
Discharge
of drilling wastes, discharge from metal refineries, erosion of natural
deposits |
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Nitrate well #1 #3 Well |
10
ppm |
10
ppm |
1.2
ppm 4.6
ppm |
Na |
9/07 12/07 |
No |
Runoff
from fertilizer use, leaching from septic tanks, ,erosion of natural
deposits
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Sodium well #1 well#3 |
None |
None |
2 ppm 3.33 ppm |
Na |
7/01 9/02 |
No |
Leaching of natural mineral
deposits |
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Arsenic well
#1 well
#3 |
10
ppb |
Na |
.007
ppb .006
ppb |
Na |
12/07 12/07 |
No |
Erosion
pf natural deposits. runoff from orchards; runoff from glass and electronics
production wastes |
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Fluoride |
4 ppm |
4 ppm |
0.3 ppm |
Na |
7/01 |
No |
Erosion
of natural deposits; water additive that promotes strong teeth; discharge
from fertilizer and aluminum factories |
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Chlorine |
MRDL=4 |
Na |
.11 ppm |
Na |
12/07 |
No |
Water
Additive used to control microbes |
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Organic Chemical
Contaminants
|
MCL |
MCLG |
Our Water |
|
Sample
Date |
Violation? |
Typical Source of
Contaminant
|
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Volatile
Organic Compounds #1
#3 Synthetic
Organic Compounds #1
#3 |
Na Na |
Na Na |
ND ND ND ND |
Na Na |
12/07 12/07 12/07 12/07 |
No No |
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Radionuclides |
MCL |
MCLG |
Our Water |
|
Sample
Date |
Violation? |
Typical Source of
Contaminant
|
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Alpha
Activity well #1
well#3 |
15
pCi/l |
0 |
8.18 pCi/l 5.84pCi/l 0 |
+/-
1.0 +/-
1.0 +/- 1.0 |
10/03 12/03 9/02 |
N |
Erosion
of natural deposits |
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Beta
Activity well #1
well #3
|
50 pCi/l |
0 |
6.9 pCi/l 10.3pCi/l |
Na |
11/99 10/02 |
No |
Erosion of natural deposits |
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Combined
Radium |
5pCi/l |
0 |
0.3 pCi/l |
+/- 0.3 |
10/03 |
No | |||||||||||||||||||||||||||