2002 Annual Drinking Water Quality Report
For
Central
Wyoming Regional Water System
1500
SW Wyoming Blvd.
Casper
WY 82604
(307)
265-6063
We're pleased to present to you this year’s
Annual Quality Water Report. This report is designed to inform you about the
quality water and services we deliver to you every day. Our constant goal is to
provide you with a safe and dependable supply of drinking water. We want you to
understand the efforts we make to continually improve the water treatment
process and protect our water resources. We are committed to ensuring the
quality of your water. Our water source consists of twenty-one ground water
wells and surface water drawn from the North Platte River.
We are pleased to report to our
consumers that our drinking water is safe
and meets Federal and State requirements.
If you have any questions about this report or
concerning your water utility, please contact Steve Garner at (307) 265-6063. 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 third Wednesday of every month at 5:30 PM located at 1500 SW
Wyoming Blvd.
Central Wyoming Regional Water System (CWRWS) routinely monitors for constituents in your
drinking water according to Federal and State laws. This table shows the
results of our monitoring for the period of January 1st to December
31st, 2002. As water travels over the land or underground
it can pick up substances or contaminants such as microbes, inorganic and
organic chemicals, and radioactive substances. All drinking water, including
bottled drinking water, may be reasonably expected to contain at least small
amounts of some constituents. It's important
to remember that the presence of these constituents does not necessarily pose a
health risk. 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.
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 laboratory does not detect the constituent.
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.
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 which
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.
MCL’s are set as close to the MCLG's 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. MCLG's allow for a margin of safety.
|
TEST
RESULTS |
||||||
|
Contaminant |
Violation Y/N |
Level Detected |
Unit Measurement |
MCLG |
MCL |
Likely
Source of Contamination |
|
Microbiological
Contaminants |
||||||
|
1. Total Coliform Bacteria |
N |
Negative |
N/A |
0 |
Presence of coliform bacteria in 5% of monthly
samples |
Naturally present in the environment |
|
2. Fecal Coliform and E.coli |
N |
ND |
CFU/100
ml |
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 |
0.294 |
NTU |
N/A |
0.3 |
Soil runoff |
|
Cryptosporidium |
N |
<1 |
CFU/100
ml |
N/A |
2-log
removal |
Animal and human fecal waste |
|
Aerobic
Spores |
N |
1.6 |
/100ml |
N/A |
N/A |
Naturally
present in the environment |
|
Radioactive
Contaminants |
||||||
|
4. Beta/photon emitters |
N/A |
N/A |
Mrem/yr |
0 |
4 |
Decay of natural and man-made deposits |
|
5.
Alpha emitters |
N |
ND |
pCi/1 |
0 |
15 |
Erosion of natural deposits |