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CCR for City of Yerington 2005 |
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Spanish (Espanol)
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Este informe contiene informacion muy importante sobre la calidad de
su agua beber. Traduscalo o hable con alguien que lo
entienda bien. |
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Is my water
safe? |
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Last year, we
conducted tests for over 80 contaminants. We only detected 13 of
those contaminants, and found only 1 at a level higher than the EPA
allows. As we told you at the time, our water temporarily exceeded
drinking water standards. (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. |
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Do I need to
take special precautions? |
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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). |
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Where does my
water come from? |
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Four (4) Wells
located throughout Mason Valley |
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Source water
assessment and its availability |
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The State of
Nevada will conduct a source water assessment for the year 2005.
The results of that report will be available at this office when
received. Office locations 227 S. Main Street and 102 S. Main
Street, Yerington, Nevada. |
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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). 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:
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- microbial
contaminants, such as viruses and bacteria, that may come from
sewage treatment plants, septic systems, agricultural livestock
operations, and wildlife;
- inorganic
contaminants, such as salts and metals, which can be naturally
occurring or result from urban storm water runoff, industrial, or
domestic wastewater discharges, oil and gas production, mining, or
farming;
- pesticides and
herbicides, which may come from a variety of sources such as
agriculture, urban storm water runoff, and residential uses;
- organic
Chemical Contaminants, including synthetic and volatile organic
chemicals, which are by-products of industrial processes and
petroleum production, and can also come from gas stations, urban
storm water runoff, and septic systems;
- radioactive
contaminants, which can be naturally occurring or be the result of
oil and gas production and mining activities. In order to ensure
that tap water is safe to drink, EPA prescribes regulations that
limit the amount of certain contaminants in water provided by
public water systems. Food and Drug Administration (FDA)
regulations establish limits for contaminants in bottled water
which must provide the same protection for public health.
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How can I get
involved? |
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Monthly City
Council meetings are held on the 2nd and 4th Mondays of each month
at City Hall, 102 S. Main Street, at 7:00 p.m. Your participation
is welcome and encouraged. |
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Other
Information |
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Some people who
drink water containing arsenic in excess of the MCL over many years
could experience skin damage or problems with their circulatory
system, and may have an increased risk of getting cancer. |
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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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Inorganic Contaminants |
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Antimony (ppb) |
6 |
6 |
1 |
1 |
6 |
2004 |
No |
Discharge from petroleum refineries;
fire retardants; ceramics; electronics; solder; test addition. |
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Arsenic (ppb) |
0 |
50 |
0.17 |
0.7 |
0.17 |
2004 |
No |
Erosion of natural deposits; Runoff
from orchards; Runoff from glass and electronics production wastes |
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Barium (ppm) |
2 |
2 |
0.07 |
0.05 |
0.07 |
2002 |
No |
Discharge of drilling wastes;
Discharge from metal refineries; Erosion of natural deposits |
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Chromium (ppb) |
100 |
100 |
13 |
4 |
13 |
2002 |
No |
Discharge from steel and pulp mills;
Erosion of natural deposits |
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Fluoride (ppm) |
4 |
4 |
0.62 |
0.34 |
0.62 |
2004 |
No |
Erosion of natural deposits; Water
additive which promotes strong teeth; Discharge from fertilizer and
aluminum factories |
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Nitrate [measured as Nitrogen] (ppm) |
10 |
10 |
0.66 |
0.05 |
0.66 |
2005 |
No |
Runoff from fertilizer use; Leaching
from septic tanks, sewage; Erosion of natural deposits |
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Sodium (optional) (ppm) |
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MPL |
35 |
23 |
35 |
2005 |
No |
Erosion of natural deposits; Leaching |
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Microbiological Contaminants |
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Total Coliform (positive
samples/month) |
0 |
1 |
1 |
NA |
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2005 |
No |
Naturally present in the environment |
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Radioactive Contaminants |
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Alpha emitters (pCi/L) |
0 |
15 |
15.1 |
1.1 |
15.1 |
2005 |
Yes |
Erosion of natural deposits |
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Beta/photon emitters (pCi/L) |
0 |
50 |
12 |
5.11 |
12 |
2005 |
No |
Decay of natural and man-made
deposits. |
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Uranium (ug/L) |
0 |
30 |
1 |
0.001 |
20 |
2005 |
No |
Erosion of natural deposits |
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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 |
0.009 |
2004 |
0 |
No |
Corrosion of household plumbing systems;
Erosion of natural deposits |
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Lead - action level at consumer taps
(ppb) |
0 |
15 |
9 |
2004 |
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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ug/L |
ug/L : Number of micrograms of substance
in one liter of water |
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ppm |
ppm: parts per million, or milligrams
per liter (mg/L) |
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ppb |
ppb: parts per billion, or micrograms
per liter (µg/L) |
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pCi/L |
pCi/L: picocuries per liter (a measure
of radioactivity) |
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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. MRDLGs 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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Alpha emitters |
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Certain minerals are radioactive and may
emit a form of radiation known as alpha radiation. Some people who
drink water containing alpha emitters in excess of the MCL over many
years may have an increased risk of getting cancer. This test was
taken in November of 2005 and is right at the limit of 15 pCi/L. The
City will continue to monitor this closely. The City is working with
the State of Nevada to continue to monitor this contaminant. |
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For more information please contact: |
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Roy McDonald |
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Address: |
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227 S. Main Street |
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Yerington, NV 89447 |
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775-463-2729 |
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775-463-0030 |
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pwdirector@yerington.net
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www.yerington.net |
Nevada
Source Water Assessment Program Summary Sheet
State of Nevada Division or
Environmental Protection
Bureau of Safe Drinking Water
Summary
Date:
5/26/2006
Assessor:
State
The Federal Safe Drinking Water Act (SDWA) was
amended in 1996 to require states to develop and implement Source Water
Assessment Programs (SWAP) to analyze existing and potential threats to
the quality of public drinking water throughout the state. The 1996
Amendments also required a summary of the findings of the assessment to be
included in the water system's annual Consumer Confidence Report (CCR).
The 1996 Amendments specifically required states to delineate areas that
are sources of public drinking water, identify potential contamination
sources within the delineated area, assess the water system's
susceptibility to contamination, and to inform the public of the results.
These results are summarized below.
Water System
Contact Information
Water System
Name:
YERINGTON CITY OF
County:
LYON
BSDW System
ID Number:
NV0000255
Number of Connections:
1,835
Population Served:
2,900
Owner's Rep:
ROY MCDONALD
Telephone:
775-463-2729
Fax: 775-463-0030
EMail:
pwdirector@yerington.net
Address:
CITY OF YERINGTON 227 S MAIN STREET,
YERINGTON, NV 89447
Operator:
DAVID WARR
Telephone:
775-463-2729
Fax: EMail:
pwdirector@yerington.net
Address:
1 FARRELL LN, YERINGTON, NV
89447
Federal
and State Water Quality Standards Compliance
[ ] If checked, the above referenced water system
is in compliance with all State of
Nevada and
Federal water quality standards.
Comments:
THE CITY OF YERINGTON PUBLIC WATER SYSTEM HAS FOUR ACTIVE WELLS AND ONE
INACTIVE WELL. EFFECTIVE JANUARY 23, 2006, THE ARSENIC MAXIMUM
CONTAMINANT LEVEL (MCL) FOR PUBLIC DRINKING WATER WAS REDUCED FROM 50
PARTS PER BILLION (ppb) TO 10 ppb. PUBLIC DRINKING WATER SYSTEMS WITH A
MAXIMUM ARSENIC CONTAMINANT LEVEL THAT IS LESS THAT 51 ppb AND GREATER
THAN 10 ppb ARE ELIGIBLE TO APPLY FOR AN EXEMPTION. IF GRANTED, THE
EXEMPTION ALLOWS THE WATER SYSTEM UNTIL JANUARY 23, 2009 TO COME INTO
COMPLIANCE WITH THE 10 ppb STANDARD. THIS WATER SYSTEM’S WELLS CURRENTLY
EXCEED THE 10 ppb STANDARD. THE WATER SYSTEM HAS APPLIED FOR AN EXEMPTION
THAT IS PENDING APPROVAL BY THE NEVADA ENVIRONMENTAL COMMISSION IN
SEPTEMBER OF THIS YEAR.
Water System
Contamination Vulnerability
[ ]
If checked, the above referenced water system is considered to have low
vulnerability potential from contamination.
The above referenced water
system is considered potentially vulnerable to the following contaminant
groups:
Volatile Organic Compounds (VOC) [X] Inorganic Compounds
(IOC) [X] Microbiological [X]
Synthetic Organic Compounds (SOC)
[X] Radionuclides [ ]
Volatile Organic Compounds (VOC) are typically
associated with gas stations and dry cleaners; Synthetic Organic Compounds
(SOC) are typically associated with herbicides and insecticides; Inorganic
Compounds (IOC) are typically associated with natural deposits,
fertilizers, septic systems, and asbestos components in the distribution
system; microbiological contaminates are typically associated with lakes,
streams, and animal holding facilities; and radionuclides are typically
associated with erosion of natural deposits and industrial activities.
The water system is considered vulnerable to
the activities/sources associated with the contaminant groups checked in
the boxes above for the following reasons: TWO WELLS ARE CONSIDERED TO BE
MODERATELY VULNERABLE TO VOC CONTAMINATION, ONE WELL IS MODERATELY
VULNERABLE TO SOC CONTAMINATION, AND ONE WELL IS MODERATELY VULNERABLE TO
MICROBIOLOGICAL CONTAMINATION. THERE IS A MODERATE TO LOW RISK FOR
ASBESTOS TO CONTAMINATE THE DRINKING WATER. PORTIONS OF THE WATER
DISTRIBUTION SYSTEM HAVE BEEN CONSTRUCTED USING ASBESTOS CEMENT PIPE. THE
WELLS ARE CONSIDERED TO BE HIGHLY VULNERABLE TO ARSENIC AS THE |