Consumer Confidence Report - 2005
Archive
Your Water Quality
We are pleased to issue our annual report for calendar year 2005 to consumers.
This report is an opportunity to assure water utility customers of the safety
and quality of their drinking water. The Kalispell Public Works Department
vigilantly safeguards its water supplies and once again we are able to report
the water delivered to your tap met all EPA and state drinking water health
standards. We are committed to providing you with this information because
informed customers are our best allies.
Drinking Water Sources
The sources of drinking water (both tap water and bottled water) include rivers,
lakes, streams, ponds, reservoirs, springs and 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 pick up substances resulting from the
presence of animals or from human activity. Substances that may be present in
source water include microorganisms, inorganic and organic chemicals, pesticides
and herbicides,
or radioactive materials.
Kalispell Water System
The source of drinking water for the City of Kalispell is groundwater wells and
one
spring. The Public Works Department manages the ground water wells and spring
drawing from a deep artesian aquifer that lies under the entire Flathead valley.
The
spring primarily draws from this deep artesian aquifer but may also draw a small
amount of water from a shallow unconfined alluvial aquifer as well. Therefore,
the
spring is classified as groundwater under the direct influence of surface water.
The
City’s water is considered moderately hard and is expressed in two ways,
as 205
milligrams per liter (mg/L) or 12 grains per gallon (gpg) hardness.
Drinking Water Source Assessment
A source water assessment has been performed on your drinking water to determine
the quality of water
before it is delivered to you and to help us identify ways to better protect
our drinking water source. The
assessment, completed in February 2003, indicated that Kalispell’s wells
are not located near any significant
contamination and are therefore classified as having “low source water
sensitivity.” The spring is classified as
having “high source water sensitivity,” but it is important to understand
a rating of “high” does not imply poor
water quality since there is low susceptibility to contaminants. The results
of the drinking water source
assessment are public record and can be viewed upon request. If you need further
information on the quality of
our source water, please contact Joni Emrick at 758-7817.
Important Health Information:
In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the amount of certain
contaminants in water provided by public water systems. Food and Drug Administration (FDA) regulations
established limits for contaminants in bottled water which must provide the same protection for public health.
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 (EPA) Safe Drinking Water Hotline (800/426-4791).
Some people may be more vulnerable to contaminants in drinking water than the general population.
Immunocompromised 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/Centers for Disease Control (CDC) guidelines on appropriate means to
lessen the risk of infection by Crytosporidium and other microbial contaminants are available from the Safe
Drinking Water Hotline (800/426-4791).
Test Results for Kalispell’s Water – Calendar 2005
Before the City of Kalispell can deliver water to your home, it must first be
thoroughly tested in certified laboratories that can detect trace amounts of
contaminants. The City of Kalispell’s test results for last year are shown in
the table below.
The EPA regulates substances that are potentially harmful to human health
and have a reasonable possibility of being found in our source water or
finished drinking water. The State requires that we monitor our water for
these regulated contaminants. Tests may be performed weekly, quarterly,
or annually depending on the substance. The level of some substances,
changes little over time or past results show the probability of detection is
very low. These contaminants are then monitored less than annually. As a
result, some of the data, though representative of the water quality, is more
than one year old. Data older than five years is not included in the table.
Summary of Monitoring Results: Kalispell’s water is tested for nearly 100 different contaminants; only those
detected are listed in the table below. Test results again show Kalispell’s water safe to drink.
| Contaminant |
Your Water |
Range Low |
Range High |
MCL |
MCLG |
Sample Date |
Violation |
| Alpha emitters (pCi/L) |
2.6 |
ND |
2.6 |
15 |
0 |
2002 |
No |
| Chlorine (as Cl2) (ppm) |
0.332) |
NA |
NA |
4 |
4 |
2005 |
No |
| Copper (ppm) |
0.091) |
0.02 |
0.12 |
AL=1.3 |
1.3 |
2004 |
No |
| Flouride (ppm) |
0.05 |
0.05 |
0.05 |
4 |
4 |
2005 |
No |
| Lead (ppb) |
51) |
ND |
10 |
AL=15 |
0 |
2004 |
No |
| Nitrate (measured as nitrogen) (ppm) |
0.78 |
0.15 |
0.78 |
10 |
10 |
2005 |
No |
| TTHMS (Total Trihalomethanes) (ppb) |
0.302) |
NA |
NA |
80 |
NA |
2005 |
No |
| Total Organic Carbon (ppm) |
0.312) |
NA |
NA |
TT |
NA |
2005 |
No |
1) 90th percentile value: 90% of the samples were at or below this value
2) Running annual average