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Annual Drinking Water Quality Report for 2008
.pdf version
Town of Cambria Water District
4160 Upper Mountain Road
Public Water Supply ID #NY 3100567
March 12, 2009
Introduction
To comply with State regulations,
Town of Cambria Water District,
will be annually issuing a report describing the quality of
your drinking water. The purpose of this report is to raise
your understanding of drinking water and awareness of the
need to protect our drinking water sources. Last year, your
tap water met all State and Federal drinking water health
standards. We are proud to report that our system did not
violate a maximum contaminant level or any other water
quality standard. In 2008, we conducted tests for over 100
contaminants. Less than a quarter of the tested
contaminants were detected. The 90th percentile
level of lead detected, 9.1mg/L,
was below the regulatory limit of 15.0mg/L;
however, lead was found at a level higher than the action
level (AL) recommended by the State at three (3) of 53 sites
tested. This report provides an overview of last year’s
water quality. Included are details about where your water
comes from, what it contains, and how it compares to State
standards.
If you have any questions about this report or concerning
your drinking water, please contact
Randy Shoop, Water District
Foreman, at 433-2468. We want you to be informed
about your drinking water. If you want to learn more,
please attend any of our regularly scheduled board meetings
at the Cambria Town Hall, 4160
Upper Mountain Road. Board meetings are held on the second
Thursday of each month at 8:00 pm.
Where does our water come from?
In general, 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 activities. Contaminants
that may be present in source water include: microbial
contaminants; inorganic contaminants; pesticides and
herbicides; organic chemical contaminants; and radioactive
contaminants. In order to ensure that tap water is safe to
drink, the State and the EPA prescribe regulations which
limit the amount of certain contaminants in water provided
by public water systems. The State Health Department’s and
the FDA’s regulations establish limits for contaminants in
bottled water which must provide the same protection for
public health.
The Town of Cambria
purchases water from the Niagara County Water District. The
Niagara County Water District water intake is located in the
west branch of the Niagara River. The water quality is
considered excellent. During 2008, our system did not
experience any restriction of our water source. The
treatment plant uses pre-chlorination, coagulation, rapid
mix, flocculation, sedimentation and filtration processes to
ensure the quality of the water. The NCWD also uses
chlorination for disinfection. Active carbon is used to
improve the “taste” of water at the raw water pump station
on Grand Island. The water treatment plant has been
approved as a direct filtration plant; however, water is
treated using conventional filtration including all of the
processes described above. In addition, fluoride and a
corrosion inhibitor are added to the potable water prior to
distribution.
The New York State Department of Health recently completed a
draft Source Water Assessment of the supplies raw water
source under the States Source Water Assessment Program
(SWAP). The purpose of this program is to compile, organize,
and evaluate information regarding possible and actual
threats to the quality of public water supply (PWS) sources.
It is important to note that source water assessment reports
estimate the potential for untreated drinking water
sources to be impacted by contamination. These reports do
not address the safety or quality of treated finished
potable tap water. The Great Lakes’ watershed is
exceptionally large and too big for a detailed evaluation in
the SWAP. General drinking water concerns for public water
supplies which use these sources include: storm generated
turbidity, wastewater, toxic sediments, shipping related
spills, and problems associated with exotic species (e.g.
zebra mussels - intake clogging and taste and odor
problems). The SWAP is based on the analysis of the
contaminant inventory compiled for the drainage area deemed
most likely to impact drinking water quality at this public
water supply raw water intake. This assessment found an
elevated susceptibility to contamination for this source of
drinking water. The amount of agricultural lands in the
assessment area results in elevated potential for protozoa
and pesticides contamination. There is also a high density
of sanitary wastewater discharges, which results in elevated
susceptibility for numerous contaminant categories.
Non-sanitary wastewater could also impact source water
quality. There is also noteworthy contamination
susceptibility associated with other discrete contaminant
sources, and these facility types include: Mines and
Resources Conservation and Recovery Act (RCRA) facilities.
If you have any questions about the States Source Water
Assessment Program, please contact Ronald Gwozdek, Principal
Public Health Engineer, Niagara County Department of Health
at (716) 439-7452.
Facts and Figures
The Town of Cambria
water system serves 5,400 people through 2,055 service
connections. The amount of water
delivered to customers in 2008 was 165,935,415 gallons. The
total water purchased in 2008 was 187,959,062 gallons. This
leaves an unaccounted for total of 21,806,047 gallons
(11.6% of the total amount purchased for 2008). This water
is used to flush mains, fight fires and leakage. In 2008,
water customers were charged $ 1.35, on average, per 1,000
gallons of water. In 2008, the average household used
approximately 76,532 gallons of water, costing $110.82,
annually. With an average of 2.6 persons per household, the
cost of water was $.12 per day, per person.
Are there contaminants in our drinking water?
As the State regulations require, we routinely test your
drinking water for numerous contaminants. These contaminants
include: microbiological contaminants, radioactive
contaminants, inorganic compounds, nitrate, nitrite, lead
and copper, volatile organic compounds, synthetic organic
compounds, trihalomethanes, haloacetic acids, and
disinfection by-products.
The table presented below depicts only those compounds which
were detected in your drinking water. The State allows us
to test for some contaminants less than once per year
because the concentrations of these contaminants do not
change frequently. Some of our data, though representative,
are more than one year old.
It should be noted that all drinking water, including
bottled drinking water, may be reasonably 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 EPA’s Safe Drinking Water Hotline (800-426-4791)
or the Niagara County Health Department at (716) 439-7430.
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Table 1: Table of Detected Contaminants |
|
Contaminant |
Violation
Yes/No |
Date of Sample |
Level Detected
(Avg. / Max.)
(Range) |
Unit of
Measurement |
MCLG |
Regulatory Limit |
Likely Source of Contamination |
Inorganic
Contaminants
|
|
Arsenic |
No |
2/08 |
0.0007 |
mg/L |
N/A |
MCL=0.010 |
Erosion of natural
deposits, waste runoff from glass and electronics
production or runoff from orchards |
|
Barium |
No |
2/08 |
0.2270 |
mg/L |
2.00 |
MCL=2.00 |
Discharge of drilling
wastes and from metal refineries; Erosion of natural
deposits. |
|
Copper 1 |
No |
6/08-9/08 |
0.1
(0.0018-0.15) |
mg/L |
1.3 |
AL=1.3 |
Corrosion of
galvanized pipes; Erosion of natural deposits. |
|
Fluoride |
No |
2/08 |
0.64 |
mg/L |
N/A |
MCL=2.2 |
Erosion of natural deposits; Water additive that
promotes strong teeth |
|
Lead
(in
distribution system) |
No |
6/08 -
9/08 |
9.1
(ND
– 93) |
mg/L |
0 |
AL=15 |
Corrosion of household plumbing systems; Erosion of
natural deposits. |
|
Sodium |
No |
2/08 |
16.6 |
mg/L |
N/A |
AL=20 |
Corrosion of
galvanized pipes; Erosion of natural deposits. |
|
Nitrate |
No |
10/08 |
0.17 |
mg/L |
10.0 |
MCL=10.0 |
Corrosion of
galvanized pipes; Erosion of natural deposits. |
|
Entry Point
Turbidity |
No |
1/08 – 12/08 |
0.026
(0.02– 0.05) |
NTU |
N/A |
|
Soil runoff |
|
Entry Point2
Turbidity |
No |
1/08 – 12/08 |
100% of samples less
than 0.3 NTU |
NTU |
N/A |
TT=95% of samples <
0.3 NTU |
Soil runoff |
Radioactive
Contaminants
|
|
Gross Alpha Particles
|
No |
2/08 |
0.07 |
pCi/L |
N/A |
MCL=15 |
Erosion of natural
deposits of certain radioactive minerals |
|
Radium 226 and 228
combined |
No |
2/08 |
1.31 |
pCi/L |
N/A |
MCL=5 |
Decay of natural and
man-made deposits of certain radioactive minerals. |
|
Uranium |
No |
2/08 |
<0.51 |
mg/L |
N/A |
MCL=30 |
Erosion of natural
deposits |
|
Disinfection
Byproducts
|
|
Total Trihalomethanes |
No |
1/08 – 10/08 |
29.3
(13.6 - 51.9) |
μg/l |
N/A |
MCL=80 |
By-product of
drinking water chlorination |
|
Total Haloacetic
Acids |
No |
1/08 – 10/08 |
19.53
(12.5 – 33.3) |
μg/l |
N/A |
MCL=60 |
By-product of
drinking water chlorination |
|
Table 2:
Substances Related to Long Term 2 Enhanced
Surface Water Treatment Rule |
|
Parameter |
Period of
Sample |
Average Level
Detected |
Unit of
Measurement |
Regulatory Limit |
MCLG |
|
Alkalinity* |
1/08 – 12/08 |
94.33 |
mg/L |
NR |
N/A |
|
|
1/08 – 12/08 |
2.43 |
mg/L |
NR |
N/A |
|
Filtered Combined UV
254* |
1/08 – 12/08 |
0.019 |
1/cm |
NR |
N/A |
|
|
1/08 – 12/08 |
1.22 |
L/mg-m |
NR |
N/A |
|
Filtered SUVA* |
1/08 – 12/08 |
0.89 |
L/mg-m |
NR |
N/A |
|
Cryptosporidium** |
3/06 – 2/08 |
ND |
oocysts/L |
TT=99% removal |
zero |
|
Giardia** |
3/06 – 2/08 |
ND |
cysts/L |
TT=99% removal |
zero |
* The substances presented above are currently not regulated
(NR) not due they have a Maximum Contaminant Level Goal
(MCLG). The parameters were monitored and average levels
presented to provide an indication of general water quality.
** The Long Term 2 Enhanced Surface Water Treatment Rule
(LT2 ESWTR) was promulgated by USEPA on January 4, 2006. The
purpose of the rule is to reduce disease incidence
associated with
Cryptosporidium and other pathogenic
microorganisms in drinking water. Systems monitor their
source water to determine treatment requirements. This
monitoring involves two years of monthly source water
sampling for
Cryptosporidium,
E. coli, and
turbidity to assess the relative risk of the source
water and determine additional treatment needs, if any.
Source water monitoring is done prior to chemical treatment
and any filter backwash recycle return. Filtered water
systems will be classified in one of four treatment
categories (bins) based on their monitoring results. Most
systems are expected to be classified in the lowest bin
(one) and will face no additional requirements.
NCWD initiated monitoring in March of 2006, completed
monitoring in February of 2008 and submitted all data as
required by this federal regulation. NCWD conducted 24
samples o the source water over the 2-year monitoring
period. No Cryptosporidium or Giardia was detected. The
determination of bin classification is the next step in this
regulatory process. The NCWD must report to the USEPA and
this department their bin classification by September 2010.
After completing monitoring and determining their treatment
bin, systems generally have three years to comply with any
additional treatment requirements if required. Systems must
conduct a second round of monitoring six years after
completing the initial round to determine if source water
conditions have changed significantly.
.
TOWN OF CAMBRIA
Town of Cambria has not
exceeded MCL for total coliform during 2008 reporting
period.
|
Contaminant |
Violation Yes/No |
Date of Sample |
Level Detected
(Maximum) |
Unit of
Measurement |
MCLG |
Regulatory Limit
(MCL, TT or AL) |
Likely Source of
Contamination |
|
Microbiological
Contaminants1 |
|
Turbidity |
No
|
- |
0.44 NTU |
NTU |
N/A |
TT= <5NTU |
Soil Runoff |
|
Turbidity |
No
|
1/08 –
12/08 |
100% |
NTU |
N/A |
TT=95% of samples <
0.3 NTU |
|
Total Coliform |
No
|
1/08 –
12/08 |
0 positive samples |
N/A |
0 |
MCL= 2 or more
positive samples |
Naturally present in
the environment |
|
Disinfection
Byproducts2 |
|
Total Trihalomethanes |
No
|
5/08 – 12/08 |
48.97
(24.7 – 55.6) |
μg/l |
N/A |
MCL=80 |
By-product of
drinking water chlorination |
|
Total Haloacetic
Acids |
No
|
5/08 – 12/08 |
19.17
(10.3 – 20.2) |
μg/l |
N/A |
MCL=60 |
By-product of
drinking water chlorination |
Maximum Contaminant Level
(MCL):
The highest level of a contaminant that is allowed in
drinking water. MCLs are set as close to the MCLGs as
feasible.
Maximum Contaminant Level Goal
(MCLG):
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.
Maximum Residual Disinfectant Level
(MRDL):
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.
Maximum Residual Disinfectant Level Goal
(MRDLG):
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 contamination.
Action Level
(AL):
The concentration of a contaminant which, if exceeded,
triggers treatment or other requirements which a water
system must follow.
Treatment Technique
(TT):
A required process intended to reduce the level of a
contaminant in drinking water.
Non-Detects (ND):
Laboratory analysis indicates that the constituent is not
present.
Nephelometric Turbidity Unit
(NTU):
A measure of the clarity of water. Turbidity in excess of 5
NTU is just noticeable to the average person.
Milligrams per liter
(mg/L):
Corresponds to one part liquid in one million parts of
liquid (parts per million - ppm).
Micrograms per liter
(μg/L):
Corresponds to one part liquid in one billion parts of
liquid (parts per billion - ppb).
Nanograms per liter
(ng/L):
Corresponds to one part liquid to one trillion parts of
liquid (parts per trillion - ppt).
Picograms per liter
(pg/L):
Corresponds to one part per liquid to one quadrillion parts
of liquid (parts per quadrillion – ppq).
Picocuries per liter
(pCi/L):
A measure of the radioactivity in water.
Million Fibers per Liter
(MFL):
A measure of the presence of asbestos fibers which are
longer than 10 μm.
Filter Combined UV 254:
A measure of the amount of ultraviolet light absorbed by
molecules in a solution measure at 253.7 nm reported in
liters per milligram meter.
Not Regulated (NR):
Corresponds to parameters that are not currently regulated
as part of the Long Term 2 Enhanced Surface Water Treatment
Rule but were included as indicators of general water
quality.
What does this information mean?
As you can see by the tables, our system had no violations.
We are proud that your drinking water meets or exceeds all
federal or state requirements. We have learned through our
testing that some contaminants have been detected; however,
most of these contaminants were detected below the level
allowed by New York State. It should be noted that the
action level for lead was exceeded in three (3) of the 53
samples collected. Therefore, we are required to present
the following information on lead in drinking water:
If present, elevated levels of lead can cause serious health
problems, especially for pregnant women, infants, and young
children. It is possible that lead levels at your home may
be higher than at other homes in the community as a result
of materials used in your home's plumbing. The Niagara
County 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 (1-800-426-4791) or at http://www.epa.gov/safewater/lead.
Is our water system meeting other rules that govern
operations?
During 2008, our system was in compliance with applicable
State drinking water operating, monitoring and reporting
requirements.
Information on Cryptosporidium
Cryptosporidium is a microbial pathogen found in surface
water and groundwater under the influence of surface water.
Although filtration removes Cryptosporidium, the most
commonly-used filtration methods cannot guarantee 100
percent removal. During 2006-2008, as part of LT2 ESWTR
monitoring, 24 monthly samples of the raw water at its entry
point into the distribution system were collected and
analyzed for Cryptosporidium oocysts. Of these samples,
none were positive for Cryptosporidium oocysts. Ingestion of
Cryptosporidium may cause cryptosporidiosis, a
gastrointestinal infection. Symptoms of infection include
nausea, diarrhea, and abdominal cramps. Most healthy
individuals can overcome disease within a few weeks.
However, immuno-compromised people are at greater risk of
developing life-threatening illness. We encourage
immuno-compromised individuals to consult their health care
provider regarding appropriate precautions to take to avoid
infection. Cryptosporidium must be ingested to cause
disease, and it may be spread through means other than
drinking water.
Information on Giardia
Giardia is a microbial pathogen present in varying
concentrations in many surface waters and groundwater under
the influence of surface water. Giardia is
removed/inactivated through a combination of filtration and
disinfection or by disinfection. During 2006-2008, as part
of LT2 ESWTR monitoring, 24 monthly samples of the raw water
at its entry point into the distribution system were
collected and analyzed for Giardia cysts. Of these samples,
none were positive for Giardia cysts. Ingestion of Giardia
may cause giardiasis, an intestinal illness. People exposed
to Giardia may experience mild or severe diarrhea, or in
some instances no symptoms at all. Fever is rarely
present. Occasionally, some individuals will have chronic
diarrhea over several weeks or a month, with significant
weight loss. Giardiasis can be treated with anti-parasitic
medication. Individuals with weakened immune systems should
consult with their health care providers about what steps
would best reduce their risks of becoming infected with
Giardiasis. Individuals who think that they may have been
exposed to Giardiasis should contact their health care
providers immediately. The Giardia parasite is passed in the
feces of an infected person or animal and may contaminate
water or food. Person to person transmission may also occur
in day care centers or other settings where hand washing
practices are poor.
Do I Need to Take Special Precautions?
Some people may be more vulnerable to disease causing
microorganisms or pathogens 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 from their health care provider about
their drinking water. EPA/CDC guidelines on appropriate
means to lessen the risk of infection by Cryptosporidium,
Giardia and other microbial pathogens are available from the
Safe Drinking Water Hotline (800-426-4791).
Information on Fluoride Addition
Our system
is one of the many drinking water systems in New York State
that provides drinking water with a controlled, low level of
fluoride for consumer dental health protection. Fluoride is
added to your water by the Niagara County Water District
before it is delivered to us. According to the United
States Centers for Disease Control, fluoride is very
effective in preventing cavities when present in drinking
water at an optimal range from 0.8 to 1.2 mg/l (parts per
million). To ensure that the fluoride supplement in your
water provides optimal dental protection, the State
Department of Health requires that the Niagara County Water
District monitors fluoride levels on a daily basis. During
2008, monitoring showed fluoride levels in your water were
in the optimal range 99% of the time. None of the
monitoring results showed fluoride at levels that approach
the 2.2 mg/l MCL for fluoride.
Why
Save Water and How to Avoid Wasting It?
Although our system has an adequate amount of water to meet
present and future demands, there are a number of reasons
why it is important to conserve water:
¨
Saving
water saves energy and some of the costs associated with
both of these necessities of life;
¨
Saving
water reduces the cost of energy required to pump water and
the need to construct costly new wells, pumping systems and
water towers; and
¨
Saving
water lessens the strain on the water system during a dry
spell or drought, helping to avoid severe water use
restrictions so that essential fire fighting needs are met.
You can
play a role in conserving water by becoming conscious of the
amount of water your household is using, and by looking for
ways to use less whenever you can. It is not hard to
conserve water. Conservation tips include:
¨
Automatic
dishwashers use 15 gallons for every cycle, regardless of
how many dishes are loaded. So get a run for your money and
load it to capacity.
¨
Turn off
the tap when brushing your teeth.
¨
Check
every faucet in your home for leaks. Just a slow drip can
waste 15 to 20 gallons a day. Fix it up and you can save
almost 6,000 gallons per year.
¨
Check
your toilets for leaks by putting a few drops of food
coloring in the tank, watch for a few minutes to see if the
color shows up in the bowl. It is not uncommon to lose up
to 100 gallons a day from one of these otherwise invisible
toilet leaks. Fix it and you save more than 30,000 gallons
a year.
¨
Use your
water meter to detect hidden leaks. Simply turn off all
taps and water using appliances, then check the meter after
15 minutes; if it moved, you have a leak.
System Improvements
In 2008, Town of Cambria Water
District continued monitoring of equipment with
vigorous operation and maintenance programs. Improvements
completed through our operation and maintenance programs are
critical in maintaining the quality of finished water. This
year’s improvements included the
replacement of 5,500 feet of 8” waterline with 5,500 feet of
12” PVC water pipe on Upper Mountain Road. In 2006, water
distribution was improved on Unicorn Drive and Eagle Drive
with the installation of 4,500 feet of 12” water pipe that
was connected to an existing 14” water main on Shawnee Road
and an existing 8” water main on Diller Road. In addition,
1,300 feet of 8” diameter water main was installed to
replace the aged 6” diameter water main along Fairview
Drive.
Closing
Thank you for allowing us to continue to provide your family
with quality drinking water this year. We ask that all our
customers help us protect our water sources, which are the
heart of our community. Please call our office if you have
questions.
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