
2008
Drinking Water Quality Report
The
Utilities Board of the City of
We’re very pleased to provide you
with this year's Annual Water Quality Report for the year ended
This
report shows our water quality and what it means, it will let you know the
quality of the water that we are dedicated to provide you and your family.
If
you have any questions about this report or concerning your water utility,
please contact Bruce Dickie or Rodney
McCain at 274-2159.
We want our valued customers to be informed about their water
utility. If you want to learn more, please attend any of our regularly
scheduled meetings. They are held on the
second Monday of every month at
The Utilities Board of the City of
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:
Non-Detects (ND)
- laboratory analysis indicates that the constituent is not present.
Parts per million (ppm) or Milligrams per
liter (mg/l) - one part per million corresponds to one
minute in two years or a single penny in $10,000.
Parts per billion (ppb) or Micrograms per
liter - one part per billion corresponds to one
minute in 2,000 years, or a single penny in $10,000,000.
Parts per trillion (ppt) or Nanograms per
liter (nanograms/l) - one part per trillion corresponds to
one minute in 2,000,000 years, or a single penny in $10,000,000,000.
Parts per quadrillion (ppq) or Picograms
per liter (picograms/l) - one part per quadrillion corresponds
to one minute in 2,000,000,000 years or one penny in $10,000,000,000,000.
Picocuries per liter (pCi/L)
- picocuries per liter is a measure of the
radioactivity in water.
Millirems per year (mrem/yr)
- measure of radiation absorbed by the body.
Million Fibers per Liter (MFL)
- million fibers per liter is a measure of the presence of asbestos fibers that
are longer than 10 micrometers.
Nephelometric Turbidity Unit (NTU)
- nephelometric turbidity unit is a measure of the clarity of water. Turbidity
in excess of 5 NTU is just noticeable to the average person.
Action Level
- the concentration of a contaminant, which, if exceeded, triggers treatment or
other requirements that a water system must follow.
Treatment Technique (TT)
- (mandatory language) A treatment technique is a
required process intended to reduce the level of a contaminant in drinking
water.
Maximum Contaminant Level
- (mandatory language) 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.
Maximum Contaminant Level Goal
- (mandatory language) 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.
* NO NUMBER GIVEN
|
TEST RESULTS |
|||||||
|
Contaminant |
Violation Y/N |
Level
Detected |
Unit Measurement |
MCLG |
MCL |
Likely Source of Contamination |
|
|
Microbiological
Contaminants |
|||||||
|
1. Total Coliform Bacteria |
N |
0 |
Per
100/ml |
0 |
presence
of coliform bacteria in 5% of monthly samples |
Naturally present in the environment |
|
|
2.
Fecal coliform and E.coli |
N |
0 |
|
0 |
a
routine sample and repeat sample are total coliform positive, and one is also
fecal coliform or E. coli positive |
Human and animal fecal waste |
|
|
3.
Turbidity |
N |
< 0.5 |
NTU |
n/a |
TT |
Soil runoff |
|
|
Radioactive
Contaminants |
|||||||
|
4. Beta/photon emitters |
N |
0 |
Mrem/yr |
0 |
4 |
Decay of natural and man-made deposits |
|
|
5.
Alpha emitters |
N |
0 |
PCi/1 |
0 |
15 |
Erosion of natural deposits |
|
|
6.
Combined radium |
N |
0 |
PCi/1 |
0 |
5 |
Erosion of natural deposits |
|
|
Inorganic
Contaminants |
|||||||
|
7.
Antimony |
N |
0 |
Ppb |
6 |
6 |
Discharge from petroleum refineries; fire
retardants; ceramics; electronics; solder |
|
|
8.
Arsenic |
N |
0 |
Ppb |
n/a |
10 |
Erosion of natural deposits; runoff from
orchards; runoff from glass and electronics production wastes |
|
|
9.
Asbestos |
N |
0 |
MFL |
7 |
7 |
Decay of asbestos cement water mains; erosion
of natural deposits |
|
|
10. Barium |
N |
0 |
ppm |
2 |
2 |
Discharge of drilling wastes; discharge from
metal refineries; erosion of natural deposits |
|
|
11. Beryllium |
N |
0 |
ppb |
4 |
4 |
Discharge from metal refineries and
coal-burning factories; discharge from electrical, aerospace, and defense
industries |
|
|
12. Cadmium |
N |
0 |
ppb |
5 |
5 |
Corrosion of galvanized pipes; erosion of
natural deposits; discharge from metal refineries; runoff from waste
batteries and paints |
|
|
13. Chromium |
N |
0 |
ppb |
100 |
100 |
Discharge from steel and pulp mills; erosion
of natural deposits |
|
|
14. Copper |
N |
0 |
ppm |
1.3 |
|
Corrosion of household plumbing systems;
erosion of natural deposits; leaching from wood preservatives |
|
|
15. Cyanide |
N |
0 |
ppb |
200 |
200 |
Discharge from steel/metal factories;
discharge from plastic and fertilizer factories |
|
|
16. Fluoride |
N |
0.32 |
ppm |
4 |
4 |
Erosion of natural deposits; water additive
which promotes strong teeth; discharge from fertilizer and aluminum factories |
|
|
17. Lead |
N |
0 |
ppb |
0 |
|
Corrosion of household plumbing systems,
erosion of natural deposits |
|
|
18.
Mercury (inorganic) |
N |
0 |
ppb |
2 |
2 |
Erosion of natural deposits; discharge from
refineries and factories; runoff from landfills; runoff from cropland |
|
|
19.
Nitrate (as Nitrogen) |
N |
.386 |
ppm |
10 |
10 |
Runoff from fertilizer use; leaching from
septic tanks, sewage; erosion of natural deposits |
|
|
20.
Nitrite (as Nitrogen) |
N |
0 |
ppm |
1 |
1 |
Runoff from fertilizer use; leaching from
septic tanks, sewage; erosion of natural deposits |
|
|
21. Selenium |
N |
0 |
ppb |
50 |
50 |
Discharge from petroleum and metal refineries;
erosion of natural deposits; discharge from mines |
|
|
22. Thallium |
N |
0 |
ppb |
0.5 |
2 |
Leaching from ore-processing sites; discharge
from electronics, glass, and drug factories |
|
|
Synthetic
Organic Contaminants including Pesticides and Herbicides |
|||||||
|
23. 2,4-D |
N |
0 |
ppb |
70 |
70 |
Runoff from herbicide used on row crops |
|
|
24. 2,4,5-TP (Silvex) |
N |
0 |
ppb |
50 |
50 |
Residue of banned herbicide |
|
|
25. Acrylamide |
N |
0 |
|
0 |
TT |
Added to water during sewage/wastewater
treatment |
|
|
26. Alachlor |
N |
0 |
ppb |
0 |
2 |
Runoff from herbicide used on row crops |
|
|
27. Atrazine |
N |
0 |
ppb |
3 |
3 |
Runoff from herbicide used on row crops |
|
|
28. Benzo(a)pyrene (PAH) |
N |
0 |
nanograms/l |
0 |
200 |
Leaching from linings of water storage tanks
and distribution lines |
|
|
29. Carbofuran |
N |
0 |
ppb |
40 |
40 |
Leaching of soil fumigant used on rice and
alfalfa |
|
|
30. Chlordane |
N |
0 |
ppb |
0 |
2 |
Residue of banned termiticide |
|
|
31. Dalapon |
N |
0 |
ppb |
200 |
200 |
Runoff from herbicide used on rights of way |
|
|
32.
Di(2-ethylhexyl) adipate |
N |
0 |
ppb |
400 |
400 |
Discharge from chemical factories |
|
|
33.
Di(2-ethylhexyl) phthalate |
N |
0 |
ppb |
0 |
6 |
Discharge from rubber and chemical factories |
|
|
34. Dibromochloropropane |
N |
0 |
nanograms/1 |
0 |
200 |
Runoff/leaching from soil fumigant used on
soybeans, cotton, pineapples, and orchards |
|
|
35. Dinoseb |
N |
0 |
ppb |
7 |
7 |
Runoff from herbicide used on soybeans and
vegetables |
|
|
36. Diquat |
N |
0 |
ppb |
20 |
20 |
Runoff from herbicide use |
|
|
37. Dioxin
[2,3,7,8-TCDD] |
N |
0 |
picograms/l |
0 |
30 |
Emissions from waste incineration and other
combustion; discharge from chemical factories |
|
|
38. Endothall |
N |
0 |
ppb |
100 |
100 |
Runoff from herbicide use |
|
|
39. Endrin |
N |
0 |
ppb |
2 |
2 |
Residue of banned insecticide |
|
|
40. Epichlorohydrin |
N |
0 |
|
0 |
TT |
Discharge from industrial chemical factories;
an impurity of some water treatment chemicals |
|
|
41. Ethylene dibromide |
N |
0 |
nanograms/1 |
0 |
50 |
Discharge from petroleum refineries |
|
|
42. Glyphosate |
N |
0 |
ppb |
700 |
700 |
Runoff from herbicide use |
|
|
43. Heptachlor |
N |
0 |
nanograms/1 |
0 |
400 |
Residue of banned termiticide |
|
|
44. Heptachlor epoxide |
N |
0 |
nanograms/1 |
0 |
200 |
Breakdown of heptachlor |
|
|
45. Hexachlorobenzene |
N |
0 |
ppb |
0 |
1 |
Discharge from metal refineries and
agricultural chemical factories |
|
|
46.
Hexachlorocyclo- pentadiene |
N |
0 |
ppb |
50 |
50 |
Discharge from chemical factories |
|
|
47. Lindane |
N |
0 |
nanograms/l |
200 |
200 |
Runoff/leaching from insecticide used on
cattle, lumber, gardens |
|
|
48. Methoxychlor |
N |
0 |
ppb |
40 |
40 |
Runoff/leaching from insecticide used on
fruits, vegetables, alfalfa, livestock |
|
|
49. Oxamyl [Vydate] |
N |
0 |
ppb |
200 |
200 |
Runoff/leaching from insecticide used on
apples, potatoes and tomatoes |
|
|
50.
PCBs [Polychlorinated biphenyls] |
N |
0 |
nanograms/1 |
0 |
500 |
Runoff from landfills; discharge of waste
chemicals |
|
|
51. Pentachlorophenol |
N |
0 |
ppb |
0 |
1 |
Discharge from wood preserving factories |
|
|
52. Picloram |
N |
0 |
ppb |
500 |
500 |
Herbicide runoff |
|
|
53. Simazine |
N |
0 |
ppb |
4 |
4 |
Herbicide runoff |
|
|
54. Toxaphene |
N |
0 |
ppb |
0 |
3 |
Runoff/leaching from insecticide used on
cotton and cattle |
|
|
Volatile
Organic Contaminants |
|||||||
|
55. Benzene |
N |
0 |
ppb |
0 |
5 |
Discharge from factories; leaching from gas
storage tanks and landfills |
|
|
56. Carbon tetrachloride |
N |
0 |
ppb |
0 |
5 |
Discharge from chemical plants and other
industrial activities |
|
|
57. Chlorobenzene |
N |
0 |
ppb |
100 |
100 |
Discharge from chemical and agricultural
chemical factories |
|
|
58. o-Dichlorobenzene |
N |
0 |
ppb |
600 |
600 |
Discharge from industrial chemical factories |
|
|
59. p-Dichlorobenzene |
N |
0 |
ppb |
75 |
75 |
Discharge from industrial chemical factories |
|
|
60. 1,2 - Dichloroethane |
N |
0 |
ppb |
0 |
5 |
Discharge from industrial chemical factories |
|
|
61. 1,1 - Dichloroethylene |
N |
0 |
ppb |
7 |
7 |
Discharge from industrial chemical factories |
|
|
62.
cis-1,2-ichloroethylene |
N |
0 |
ppb |
70 |
70 |
Discharge from industrial chemical factories |
|
|
63. trans - 1,2 -Dichloroethylene |
N |
0 |
ppb |
100 |
100 |
Discharge from industrial chemical factories |
|
|
64. Dichloromethane |
N |
0 |
ppb |
0 |
5 |
Discharge from pharmaceutical and chemical
factories |
|
|
65. 1,2-Dichloropropane |
N |
0 |
ppb |
0 |
5 |
Discharge from industrial chemical factories |
|
|
66. Ethylbenzene |
N |
0 |
ppb |
700 |
700 |
Discharge from petroleum refineries |
|
|
67. Styrene |
N |
0 |
ppb |
100 |
100 |
Discharge from rubber and plastic factories;
leaching from landfills |
|
|
68. Tetrachloroethylene |
N |
0 |
ppb |
0 |
5 |
Leaching from PVC pipes; discharge from
factories and dry cleaners |
|
|
69.
1,2,4 -Trichlorobenzene |
N |
0 |
ppb |
70 |
70 |
Discharge from textile-finishing factories |
|
|
70.
1,1,1 - Trichloroethane |
N |
0 |
ppb |
200 |
200 |
Discharge from metal degreasing sites and
other factories |
|
|
71. 1,1,2 -Trichloroethane |
N |
0 |
ppb |
3 |
5 |
Discharge from industrial chemical factories |
|
|
72. Trichloroethylene |
N |
0 |
ppb |
0 |
5 |
Discharge from metal degreasing sites and
other factories |
|
|
73.
TTHM
[Total trihalomethanes] |
N |
46.5 |
ppb |
0 |
80 |
By-product of drinking water chlorination |
|
|
74. Toluene |
N |
0 |
ppm |
1 |
1 |
Discharge from petroleum factories |
|
|
75. Vinyl Chloride |
N |
0 |
ppb |
0 |
2 |
Leaching from PVC piping; discharge from
plastics factories |
|
|
76. Xylenes |
N |
0 |
ppm |
10 |
10 |
Discharge from petroleum factories; discharge
from chemical factories |
|
Microbiological
Contaminants:
(1)
Total
Coliform. Coliforms are bacteria that are naturally present in the environment
and are used as an indicator that other, potentially harmful, bacteria may be
present.
The
table shows that our system now has no violations or problems.
All
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 the
water poses a health risk. We’re proud that your drinking water meets or
exceeds all Federal and State requirements. We have learned through our
monitoring and testing that some constituents have been detected. The EPA has
determined that your water IS SAFE
at these levels. More information about contaminants and potential health
effects can be obtained by calling the Environmental Protection Agency’s Safe
Drinking Water Hotline at 1-800-426-4791.
MCL’s
are set at very stringent levels. To understand the possible health effects
described for many regulated constituents, a person would have to drink 2
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.
In
our continuing efforts to maintain a safe and dependable water supply and to
continue to meet the growing water needs of
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/CDC guidelines on
appropriate means to lessen the risk of infection by cryptosporidium and other
microbiological contaminants are available from the Safe Drinking Water Hotline
(800-426-4791).
The
Utilities Board of the City of
This
publication conforms to the SDWA requirement that water utilities annually
provide detailed water quality information to you-our customer. We are
committed to providing you with this information about your water supply.
Customers who are well informed are our best allies in supporting improvements
necessary to maintain the highest drinking water standards.
We
at the Utilities Board of the City of