HomeMy WebLinkAbout2015A9 � -
CHUBBUCK
1 0 A H 0
Is my water safe?
2015 Consumer Confidence Report
We are pleased to present this year's Annual Water Quality
Report (Consumer Confidence Report) as required by the
Safe Drinking Water Act (SDWA). This report is designed to
provide details about where your water comes from, what
it contains, and how it compares to standards set by
regulatory agencies. This report is a snapshot of last year's
water quality. 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?
Your drinking water comes from three wells drilled into the Lower Portneuf River Aquifer. They are
located throughout the city. This water is very high quality
and is disinfected with chlorine before delivery to your
home. W ell No. 4 does have a special treatment system.
a. It is described below.
The only man -caused contaminant in the water is
Tetrachloroethylene (PCE or PERC). The source of PCE
` contamination is unknown at this time. We are able to
treat the water using an air stripping process to remove
- high concentrations of PCE.
---
Source water assessment and its availability
The state has completed an assessment of our source water. That report is available for review at the
City Offices
Why are there contaminants in my drinking water?
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).
How can I get involved?
The City has attempted to make this report informative and readable. This report shows our water
quality and what it means. If you have questions about the report or your drinking water, please call
the City Public Works offices at (208) 237-2430, and further assistance will be provided. If you would
like to have input on how your drinking water is provided, you may either call the number above, or
attend the City Council meetings.
Additional Information for Lead
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and
young children. Lead in drinking water is primarily from materials and components associated with
ED STA
2� 7J
_C Z
LU
O Q
2 =
O
qC PROI�G�`
service lines and home plumbing. City of Chubbuck 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 at
http://www.epa.gov/your-drinking-water/safe-drinking-water-hotline
Additional Information for Nitrate
Nitrate in drinking water at levels above 10 ppm is a health risk for infants of less than six months of age.
High nitrate levels in drinking water can cause blue baby syndrome. Nitrate levels may rise quickly for
short periods of time because of rainfall or agricultural activity. If you are caring for an infant, you
should ask for advice from your health care provider.
Water Quality Data Table
In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the amount of contaminants
in water provided by public water systems. The table below lists all of the drinking water contaminants that we
detected during the calendar year of this report. Although many more contaminants were tested, only those
substances listed below were found in your water. All sources of drinking water contain some naturally occurring
contaminants. At low levels, these substances are generally not harmful in our drinking water. Removing all
contaminants would be extremely expensive, and in most cases, would not provide increased protection of public
health. A few naturally occurring minerals may actually improve the taste of drinking water and have nutritional
value at low levels. 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 vary significantly from year to year, or the system is not considered
vulnerable to this type of contamination. As such, some of our data, though representative, may be more than one
year old. In this table you will find terms and abbreviations that might not be familiar to you. To help you better
understand these terms, we have provided the definitions below the table.
MCLG
MCL,
or
TT, or
Your
Range
Sample
Contaminants
MRDLG
MRDL
Water
Low I High
Date
Violation
Typical Source
Disinfectants & Disinfectant By -Products
(There is convincing evidence that addition of a disinfectant is necessary for control of
microbial contaminants)
TTHMs [Total
By-product of drinking water
Trihalomethanes]
NA
80
8.08
4.87
11.3
2015
No
disinfection
(ppb)
Haloacetic Acids
NA
60
ND
1.09
2015
No
By-product of drinking water
(HAA5) (ppb)
.55
chlorination
Chlorine (as C12)
4
4
0.29
0.20
0.35
2015
No
later additive used to control
(ppm)
microbes
Inorganic Contaminants
Erosion of natural deposits;
Arsenic (ppb)
0
10
3.48
1.95
3.48
2010
No
Runoff from orchards; Runoff
from glass and electronics
production wastes
Discharge of drilling wastes;
Barium (ppm)
2
2
0.15
0.11
0.15
2010
No
Discharge from metal
refineries; Erosion of natural
deposits
Discharge from steel and pulp
Chromium (ppb)
100
100
7.21
ND
7.21
2010
No
ills; Erosion of natural
deposits
Erosion of natural deposits;
Water additive which
Fluoride (ppm)
4
4
0.34
ND
0.34
2010
No
promotes strong teeth;
Discharge from fertilizer and
aluminum factories
Unit Descriptions
Term
Term
Definition
ug/L
ug/L : Number of micrograms of substance in one liter of water
ppm
ppm: parts per million, or milligrams per liter (mg/L)
Runoff from fertilizer use;
Nitrate [measured aseaching
10
10
4.13
3.31
4.95
2015
No
from septic tanks,
Nitrogen] (ppm)
sewage; Erosion of natural
deposits
Discharge from petroleum and
Selenium (ppb)
50
50
2.49
2.07
2.49
2010
No
metal refineries; Erosion of
natural deposits; Discharge
from mines
Radioactive Contaminants
Radium (combined
0
5 1.83 1.6 1.83 2013 No
Erosion of natural deposits
226/228) (pCi/L)
Uranium (ug/L)
0
30 2.55 1.46 2.55 2013 No
Erosion of natural deposits
Alpha emitters
0
15 14.7 NA 2013 No
Erosion of natural deposits
(pCi/L)
Volatile Organic Contaminants
Tetrachloroethylene
0
5
0.67
ND
1.34
2015
No
iscare from factories and
dry cheane
Your
Sample I # Samples
Exceeds
Contaminants
MCLG
AL
Water
Date Exceeding AL
AL
Typical Source
Inorganic Contaminants
Lead - action level at
Corrosion of household
consumer taps (ppb)
0
15
6
2015
0
No
plumbing systems; Erosion
of natural deposits
Copper - action level
Corrosion of household
at consumer taps
1.3
1.3
0.249
2015
0
No
plumbing systems; Erosion
(ppm)
I
I I
I
I
of natural deposits
Unit Descriptions
Term
Term
Definition
ug/L
ug/L : Number of micrograms of substance in one liter of water
ppm
ppm: parts per million, or milligrams per liter (mg/L)
ppb
ppb: parts per billion, or micrograms per liter (gg/L)
pCi/L
pCi/L: picocuries per liter (a measure of radioactivity)
NA
NA: not applicable
ND
ND: Not detected
NR
NR: Monitoring not required, but recommended.
Important Drinking Water Definitions
Term
Definition
MCLG: Maximum Contaminant Level Goal: The level of a contaminant
MCLG
in drinking water below which there is no known or expected risk to
health. MCLGs allow for a margin of safety.
MCL: Maximum Contaminant Level: The highest level of a contaminant
MCL
that is allowed in drinking water. MCLS are set as close to the MCLGs as
feasible using the best available treatment technology.
TT
TT: Treatment Technique: A required process intended to reduce the
level of a contaminant in drinking water.
AL
AL: Action Level: The concentration of a contaminant which, if
exceeded, triggers treatment or other requirements which a water system
Variances and Exemptions
Variances and Exemptions: State or EPA permission not to meet an MCL
or a treatment technique under certain conditions.
MRDLG: Maximum residual disinfection level goal. The level of a
MRDLG
drinking water disinfectant below which there is no known or expected
risk to health. MRDLGs do not reflect the benefits of the use of
disinfectants to control microbial contaminants.
MRDL: Maximum residual disinfectant level. The highest level of a
MRDL
disinfectant allowed in drinking water. There is convincing evidence that
addition of a disinfectant is necessary for control of microbial
contaminants.
MNR
MNR: Monitored Not Regulated
MPL
MPL: State Assigned Maximum Permissible Level
or more information please contact:
Contact Name: Kurt Eldredge
Address:
PO Box 5604
Chubbuck,ID 83202
Phone: 208-237-2430
Fax: 208-237-2409
E -Mail: keldredge@cityofchubbuck.us
Website: www.cityofchubbuck.us