For 2006
Section 1: Introduction
The
Section 2: Source Water Information.
The
The
Section 3: What are sources of contamination to drinking water?
The sources of drinking water both tap water
and bottled water includes 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. Contaminants that may be
present in source water include: (A) Microbial contaminants, such
as viruses and bacteria, which may come from sewage treatment
plants, septic systems, agricultural livestock operations and
wildlife; (B) 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; (C) Pesticides and herbicides,
which may come from a variety of sources such as agriculture,
urban storm water runoff, and residential uses; (D) 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; (E) 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, USEPA 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.
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 Agencys
Safe Drinking Water Hotline (1-800-426-4791).
A Drinking Water Source Assessment Report
for the


Section 4: Who needs to take special
precautions?
Some people may be more vulnerable to
contaminants in drinking water than the general population.
Immune-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 infection.
These people should seek advice about drinking water from their
health care providers. EPA/CDC guidelines on appropriate
means to lessen the risk of infection by Cryptosporidium and
other microbial contaminants are available from the Safe Drinking
Water Hotline (1-800-426-4791).
Section 5: About your drinking water.
The EPA requires regular sampling to ensure
drinking water safety. The Village of New London conducted
sampling for bacteria, turbidity, inorganic, radiological,
synthetic organic, volatile organic, nitrate, nitrite, total
trihalomethanes, haloacetic acids, total organic
compounds, dissolved organic compounds, and lead and copper
contaminant sampling during 2006 and previous years. Samples
were collected for approximately a total of 150 different
contaminants most of which were not detected in the
Section 6: Listed below is information of those contaminants that were found in the Village of New London drinking water.
Contaminants
(Units) |
MCLG |
MCL |
Level
Found |
Violation |
Sample Year |
Typical
Source of Contaminants |
|||
Turbidity
(NTU) |
NA |
TT |
.11 |
.07-.11 |
No |
2006 |
Soil
runoff |
||
Turbidity
(% meeting standard) |
NA |
TT |
100% |
100% |
No |
2006 |
|||
| Inorganic
Contaminants |
|||||||||
Copper
(ppb) |
13 |
297 |
<50-311 |
No |
2006 |
Corrosion
of household plumbing systems; Erosion of natural
deposits; Leaching from wood preservatives. |
|||
Lead
(ppb) |
0 |
<5.0 |
<5.0 |
No
|
2006 |
Corrosion
of household plumbing systems. |
|||
Fluoride
(ppm) |
4.0 |
4.0 |
1.16 |
.810-1.29 |
No |
2006 |
Erosion
of natural deposits; Water additive which promotes strong
teeth; Discharge from fertilizer and aluminum factories. |
||
Nitrate
(ppm) |
10 |
10 |
0.29 |
<0.10-0.29 |
No |
2006 |
Runoff from fertilizer use; Leaching from
septic tanks, sewage, Erosion of natural deposits. |
||
Barium
(ppm) |
2 |
2 |
0.0262 |
0.0262 |
No |
2006 |
Discharge
of drilling wastes; Discharge from metal refineries;
Erosion of natural deposits. |
||
| Volatile Organic
Contaminants |
|||||||||
Total
Trihalomethanes(TTHM) |
n/a |
80 |
68.9 |
56.3-85.0 |
No |
2006 |
By-product
of drinking water chlorination. |
||
Haloacetic
Acids (HAA5) |
n/a |
60 |
22.1 |
<6.0-42.1 |
No |
2006 |
By-product
of drinking water chlorination. |
||
TOC |
n/a |
TT |
1.0 |
1.0 |
No |
2006 |
Naturally
present in the environment |
||
| Residual
Disinfectants |
|||||||||
Total
Chlorine (ppm) |
MRDL=4 |
MRDLG=4 |
1.40 |
0.2-1.8 |
No |
2006 |
Water
additive used to control microbes |
||
Section 7: Turbidity is a measure of
the cloudiness of water and is an indication of the effectiveness
of our filtration system. Turbidity has no health effects,
however, turbidity can interfere with disinfection and provide
medium for microbial growth. Turbidity may indicate the
presence of disease-causing organisms. These organisms
include bacteria, viruses, and parasites that can cause symptoms
such as nausea, cramps, diarrhea, and associated headaches. The
turbidity limit set by the EPA is 0.5 in 95% of the daily
samples and shall not exceed 5 NTU at any time. As reported
above the
Section 8: Definitions of some terms
contained within this report.
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 Contaminant level (MCL): The highest
level of contaminant that is allowed in drinking water. MCLs
are set as close to the MCLGs as feasible using the best
available treatment technology.
Parts per Million (ppm) or Milligrams
per Liter (mg/L) are units of measure for concentration of a
contaminant. A part per million corresponds to one second
in a little over 11.5 days.
Parts per Billion (ppb) or Micrograms per
Liter (µg/L) are units of measure for concentration of a
contaminant. A part per billion corresponds to one second
in 31.7 years.
Action Level (
Treatment Technique (TT): A required
process intended to reduce the level of a contaminant in drinking
water.
Maximum Residual Disinfectant Level Goal
(MRDLG): The level of 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.
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.
The < symbol: A symbol which
means less than. A result of <5 means that the lowest
level that could be detected was 5 and the contaminant in that
sample was not detected.
Section 9: How do I
participate in decisions concerning my drinking water?
Public participation and comment are
encouraged at regular meetings of New London Village Council
which meets the second and fourth Monday of every month in the
Council Chambers at the Village Office,