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2008 Water
Quality Report
Spanish
(Espanol)
Este informe
contiene informacion muy importante sobre la calidad de su agua
potable. Por favor lea este informe o comuniquese con alguien
que pueda traducir la informacion.
Is my
water safe?
We are pleased
to report that our drinking water is safe and meets federal and
state requirements. The purity of our water is of the degree
that the Environmental Protection Agency (EPA) does not require
Deschutes Valley Water District to test for every contaminant
every year. A waiver granted by the Oregon Health Division
(OHD) in 1996, stipulated the frequency and elements to be
tested. Last year, we conducted tests for over 80 contaminants.
We only detected 2 of those contaminants, and found only 1 at a
level higher than the EPA allows. (For more information see the
section labeled Violations at the end of the report.) This
report is a snapshot of last year's water quality. Included are
details about where your water comes from, what it contains, and
how it compares to standards set by regulatory agencies. We are
committed to providing you with information because informed
customers are our best allies.
Do I need to take special
precautions?
Some people may
be more vulnerable to contaminants in drinking water than the
general population. Immuno-compromised 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 Cryptosporidium and other microbial contaminants
are available from the Safe Water Drinking Hotline
(800-426-4791).
Where does my water come from?
The Opal
Springs aquifer supplies the domestic water for Deschutes Valley
Water District's approximately 4,000 services. The artesian
spring is located 5 miles Southwest of Culver at the bottom of
the 850 foot deep Crooked River canyon, less than 150 feet from
the river. The artesian wells are located on the East side of
the canyon ranging from 300 to 600 feet South of Opal Springs.
Opal Springs
flows approximately 108,000 gallons per minute at 53.8 degrees
Fahrenheit with no seasonal variation. There has been no
detectable change in flow, temperature, or pH since the spring
was first tested in 1925. Well # 1 is 750 feet deep and
produces 3,750 gallons per minute. Well #2 is 513 feet deep and
produces 5,360 gallons per minute. Well #3 is 661 feet deep and
produces 4,000 gallons per minute. It has been determined that
the wells and Opal Springs are fed from the same aquifer.
Source water assessment and its
availability
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). Currently, there is no filtration or treatment
of Opal Springs of any kind (nor is any needed). Historic and
continuing water quality analysis indicates an absence of
man-made contaminants in the captured Opal Springs water. The
source is well protected because it is hundreds of feet below
the surface and under pressure. It is unlikely that contaminants
introduced on the surface would reach the deep aquifer. The
spring and wells have yet to show radiation from the W.W.II
nuclear testing placing the age of the water from Opal Springs
at 50 years old minimum. According to “U.S.G.S. Report
97-197,”studies show the age of the water could be one to four
thousand years old. An analysis for waterborne particulates
shows conclusively that Opal Springs is a ground water source,
not influenced by surface water.
Hardness of
water is caused by the presence of magnesium and calcium.
Excessive hardness is undesirable because it causes difficulties
when doing laundry or washing dishes. Domestic water should
have hardness less than 85 mg/l. The District's water tests at
42 mg/l and is considered very soft.
The pH of water
is measured on a scale of 1 to 14. A low reading would indicate
acidic water (which is corrosive) while a high reading connotes
basic water. Neutral water (neither acidic nor basic) would
have a reading of 7. The District's pH tested at 7.98 which
means our water is just a little basic.
How can I get involved?
If you have any
questions about this report or concerning your utility, please
contact General Manager, Edson Pugh, at (541) 475-3849. We want
our valued customers to be informed about their water utility.
If you want to learn more, please attend any of our regularly
scheduled Board Meetings. They are held on the second Monday of
each month at 7:00 PM at the District office at 881 SW Culver
Hwy, Madras, Oregon.
Additional Information for Lead
There is no
detectable lead or copper in our water source; however, these
metals can enter the drinking water supply through corrosion
within the distribution system or household plumbing. If
present, elevated levels of lead can cause serious health
problems, especially for pregnant women and young children.
Deschutes Valley Water District is responsible for providing
high quality drinking water, but cannot control the variety of
materials used in plumbing components. When your water has been
sitting for several hours, you can minimize the potential for
lead exposure by flushing your tap for 30 seconds to 2 minutes
before using water for drinking or cooking. If you are concerned
about lead in your water, you may wish to have your water
tested. Information on lead in drinking water, testing methods,
and steps you can take to minimize exposure is available from
the Safe Drinking Water Hotline or at
http://www.epa.gov/safewater/lead.
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Water
Quality Data Table |
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The
table below lists all of the drinking water contaminants
that we detected during the calendar year of this
report. The presence of contaminants in the water does
not necessarily indicate that the water poses a health
risk. Unless otherwise noted, the data presented in
this table is from testing done in the calendar year of
the report. The EPA or the State requires us to monitor
for certain contaminants less than once per year because
the concentrations of these contaminants do not change
frequently. |
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MCLG |
MCL, |
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or |
TT, or |
Your |
Range |
Sample |
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Contaminants |
MRDLG |
MRDL |
Water |
Low |
High |
Date |
Violation |
Typical Source |
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Microbiological
Contaminants |
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Total Coliform (positive
samples/month) |
0 |
1 |
5 |
NA |
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2008 |
Yes |
Naturally present in the
environment |
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Your |
Sample |
# Samples |
Exceeds |
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Contaminants |
MCLG |
AL |
Water |
Date |
Exceeding AL |
AL |
Typical Source |
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Inorganic Contaminants |
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Copper - action level at
consumer taps (ppm) |
1.3 |
1.3 |
0.033 |
2007 |
0 |
No |
Corrosion of household
plumbing systems; Erosion of natural deposits |
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Unit Descriptions |
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Term |
Definition |
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ppm |
ppm: parts per million, or
milligrams per liter (mg/L) |
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positive samples/month |
positive samples/month:
Number of samples taken monthly that were found to be
positive |
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NA |
NA: not applicable |
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ND |
ND: Not detected |
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NR |
NR: Monitoring not
required, but recommended. |
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Important Drinking Water
Definitions |
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Term |
Definition |
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MCLG |
MCLG: Maximum Contaminant
Level Goal: 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. |
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MCL |
MCL: Maximum Contaminant
Level: 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. |
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TT |
TT: Treatment Technique: A
required process intended to reduce the level of a
contaminant in drinking water. |
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AL |
AL: Action Level: The
concentration of a contaminant which, if exceeded,
triggers treatment or other requirements which a water
system must follow. |
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Variances and Exemptions |
Variances and Exemptions:
State or EPA permission not to meet an MCL or a
treatment technique under certain conditions. |
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MRDLG |
MRDLG: Maximum residual
disinfection level goal. The level of a drinking water
disinfectant below which there is no known or expected
risk to health. MRDLG's do not reflect the benefits of
the use of disinfectants to control microbial
contaminants. |
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MRDL |
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. |
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MNR |
MNR: Monitored Not
Regulated |
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MPL |
MPL: State Assigned
Maximum Permissible Level |
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Violations and Exceedances |
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Total Coliform |
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Coliforms are bacteria
that are naturally present in the environment and are
used as an indicator that other potentially-harmful,
bacteria may be present. Coliforms were found in more
samples than allowed and this was a warning of potential
problems. After repairing a valve on our 20” main line
we had samples that tested positive from December 9th to
December 16th. In response, we immediately added
chlorine to our reservoirs, flushed our lines and
retested the water. The subsequent test results came
back negative which indicates that there were no
problems with the water. |
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For more information
please contact: |
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Marsha Keating |
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Address: |
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881 SW Culver Hwy |
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Madras, OR 97741 |
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541 475-3849 |
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541 475-6013 |
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mkeating@dvwd.org |
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www.dvwd.org |
      
Great Job!
This page was updated Wednesday, June 10, 2009. |