The
City of
Annual
Drinking Water Quality Report
For: January 1, 2006 to
December 31, 2006
Dear Water
Utility Customer:
We're pleased to present to you our Annual Water Quality
Report. The "Safe Drinking Water Act" was re-authorized and signed
into law by President Clinton in the fall of 1998. A key component of the law
is mandatory public disclosure about compliance with drinking water regulations.
Your Utility welcomes this opportunity to inform you, our customers about the
high quality of your drinking water. The sample results in the following report
are technical in nature, and our goal is to help you understand how the data
supports the safety of consuming drinking water provided by the City of
The source of our water is the
The City of
Menominee Water Treatment Plant routinely monitors your drinking water for
impurities according to federal and state laws. The table included with this
report shows the results of our monitoring for the period of January 1 to December 31, 2006. Sample
results that are more than five (5) years old need not be included in the
report, even if they are the last available data for the supply. All drinking
water, including bottled water, may reasonably be expected to contain at least
small amounts of some contaminants. The presence of impurities does not
necessarily indicate that consuming the water poses an increased health risk. The
sources of drinking water (both tap 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, it can also pick up
substances resulting from the presence of animal or human activity. More
information about contaminants and their potential health effects can be
obtained by calling the Environmental Protection Agency's Safe Drinking Water
Hotline at 1-800-426-4791.
Contaminants that may be
present in source water include:
(A) Microbial contaminants, such as viruses and
bacteria that may come from sewage treatment plants, septic systems,
agricultural livestock operations, and wildlife.
(B) Inorganic contaminants, such salts and metals,
which can be naturally-occurring or results from urban stormwater runoff,
industrial or domestic wastewater discharges, oil and gas production, mining,
or farming.
(C) Pesticides and herbicides, which may come from
a variety of sources such as agriculture, urban stormwater runoff, and
industrial uses.
(D) Organic chemical contaminants, including
synthetic and volatile organic chemicals, which are a by-product of industrial
processes and petroleum production, and can also come from gas stations, urban
stormwater runoff, and septic systems.
(E) Radioactive contaminants, which can be
naturally occurring or the results of oil and gas production and mining
activities.
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. FDA
regulations establish limits for contaminants in bottled water, which must
provide the same protection for public health.
We are proud that
your drinking water meets or exceeds all federal and state requirements. We
have learned through our monitoring and testing that some contaminates have
been detected, but the concentrations found are well below the regulatory
standards. The EPA has determined that your water IS SAFE at these levels.
Maximum contaminate levels are set at very restrictive
concentrations. To understand the possible health effects described for many of
the regulated contaminants listed in this report, a person would have to drink
two liters of water every day at the MCL level for a lifetime to have a
one-in-a-million chance of having the described health effect.
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 for infections. These people
should seek advice about drinking water from their health care providers.
EPA/CDC (Center for Disease Control, 1-800-342-2437) guidelines on appropriate
means to lessen the risk of infection by cryptosporidium and other
microbiological contaminants are available from the Safe Drinking Water Hotline
(1-800-426-4791).
Lead and copper
test results: on the following table (items 14 & 17) are samples
collected in high-risk homes and demonstrate levels found in the plumbing of
the household. This EPA-mandated "Lead and Copper Program" was
started in 1992, and at that time 40 high-risk homes were placed on the
program. A high-risk home is one containing lead solder joints on copper
plumbing installed after 1982, homes with lead pipes, and homes with lead service
lines.
The Tap water being produced at the Menominee Water
Treatment Plant contains no detectable lead or copper.
Our
water utility customers should consider themselves to be investor-owners of the
system. The utility is managed as an enterprise fund and all operations,
maintenance, and replacement expenditures are financed entirely by user fees.
Consequently, all customer inquiries, requests, or suggestions are welcome and
encouraged by the utility. The Menominee
Water and Wastewater Utility Board are responsible for overseeing the Menominee
Water Utility. The Water and Wastewater Utility Board meets on the second
Thursday of each month at four (4) PM in the council chambers at City Hall.
Utility correspondence may be directed to the following personnel.
Mike Thorsen Donald DeTemple Eric Stranl
Utility Manager Superintendent City
Manager
Infrastructure
Alternatives Infrastructure
Alternatives City of
Phone: 863-3050 Phone: 863-6744 Phone: 863-2656
Fax: 863-1370 Fax: 863-1370 Fax: 863-3266
|
TEST RESULTS |
||||||||
|
Regulated Contaminant |
Violation Y/N |
Level Detected |
Range of detections |
Sample date |
Unit Measurement |
MCLG |
MCL |
Likely
Source of Contamination |
|
Microbiological
Contaminants |
||||||||
|
3.
Turbidity |
N |
0.12 NTU = the highest
daily average for the year 0.29 = the
highest single read for the year. |
0.00
NTU to 0.29NTU |
|
NTU |
.30 |
1
NTU in 2 reads 15 min apart for an individual filter.
Less than 0.3 NTU in 95% per month for the combined filter effluent
reads. |
Soil
runoff, Turbidity is a measure of the cloudiness of the water. We monitor it because it is a good
indicator of the effectiveness of our filtration system. |
|
Radioactive
Contaminants |
||||||||
|
5. Alpha emitters |
N |
<0.7 |
|
4-01 |
pCi/1 |
0 |
15 |
Erosion
of natural deposits |
|
6. Combined radium Radium 226 Radium 228 |
N |
(<0.9) <0.1 <0.8 |
|
6-02 |
PCi/l |
0 |
5 |
Erosion
of natural deposits |
|
Inorganic Contaminants |
||||||||
|
14.
Copper |
N |
50 |
|
8-06 |
ppb |
1300 |
|
Corrosion
of household plumbing systems; erosion
of natural deposits; leaching from wood preservatives |
|
16.
Fluoride |
N |
920 |
|
|
ppb |
4000 |
4000 |
Erosion
of natural deposits; water additive which promotes strong teeth; discharge
from fertilizer and aluminum factories |
|
17.
Lead |
N |
2 |
|
8-06 |
ppb |
0 |
|
Corrosion
of household plumbing systems, erosion of natural deposits |
|
Volatile Organic
Contaminants |
||||||||
|
73. TTHM [Total
trihalomethanes] |
N |
47++ |
36.0
to 63.0 |
|
ppb |
0 |
80as an annual average |
By-product
of drinking water chlorination |
|
74.
HAA5 (Hal0acetic) |
N |
38.0++ |
20.0
to 54.0 |
|
ppb |
0 |
60 as an annual
average |
By-product
of drinking water chlorination |
|
76.Total Xylenes |
N |
1 |
|
1-06 |
ppb |
10,000 |
|
Discharge
from petroleum factories; discharge from chemical factories |
|
|
|
Running Annual Average |
|
Treatment Technique |
|
|||
|
Total Organic Carbon (TOC) |
N |
1.32 mg/L |
1.00 mg/L to 1.75 mg/L |
Removal
Ratio > 1.0 |
Naturally
present in the environment. |
|||
++ Equals the highest annual average for
the year
In this
table you will find many terms and abbreviations you might not be familiar
with. To help you better understand these terms we've provided the following
definitions:
ND (Non-Detects) - laboratory analysis indicates that the
contaminant is not present.
Ppm (Parts per million) or Milligrams per liter (mg/l) - one part per million
corresponds to one minute in two years or a single penny in $10,000.
Ppb (Parts per billion) or Micrograms per liter - one part per billion
corresponds to one minute in 2,000 years, or a single penny in $10,000,000.
PCi/L (Pico curies per liter) - picocuries per liter
is a measure of the radioactivity in water.
MREM/YR (Millirems per year) - measure of radiation
absorbed by the body.
NTU (Nephelometric Turbidity Unit) - nephelometric
turbidity unit is a measure of the clarity of water. Turbidity in excess of 5
NTU is just noticeable to the average person.
TT (Treatment Technique) a treatment technique is a required
process intended to reduce the level of a contaminant in drinking water.
MCL (Maximum Contaminant Level) - The “Maximum Allowed”
MCL is 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.
MCLG (Maximum Contaminant Level Goal) The “Goal”(MCLG) is 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.
NR (Not Required)
Monitoring for these contaminants was not required by the Environmental
Protection Agency or the Michigan Department of Environmental Quality.
CFU (Colony Forming
Units) – The number of colonies that formed in a sample on a membrane filter.
The Total Organic (TOC)
removal ratio is calculated as the ratio between the actual TOC removal and the
TOC removal requirements. The ratios shown are the average of the ratios and
the range of the ratios for the 12 months covered by this report. The TOC
removal was measured each month and the system met all TOC removal requirements
set by the state.
The City of