CRYSTAL
CLEAR WATER SUPPLY CORPORATION
2001
Annual Water Quality Report
PWS # 0940015
Crystal Clear
Water Supply Corporation has been providing clean water to your
community since 1964, helping to keep you and your family healthy.
We take this mission very seriously. As shown in this annual report
covering the year 2001, the water we delivered surpassed the strict
regulation of the State of Texas and the U.S. Environmental Protection
Agency.
Este reporte
incluye informacion importante sobre el agua para tomar. Si tiene
preguntas o'discussions sobre este reporte en espanol, favor de
Harmar al tel. (830) 372-1031 par hablar con una persona bilingue
en espanol.
Crystal Clear
Water relies on water from the Edwards Aquifer and Carrizo-Wilcox
Aquifer and surface water from the Guadalupe and San Marcos rivers.
Crystal Clear
Water treats your water with disinfection and filtration to remove
or reduce harmful contaminants that may come from the source water.
TNRCC will be reviewing all of the water sources for the State
of Texas. An assessment will be completed and ready for viewing
within the next three years. This assessment will enable you to
protect and maintain safe drinking sources.
FOR MORE
INFORMATION about your drinking water and for opportunities
to get more involved, please contact Crystal Clear Water Corp
by calling 830-372-1031. Also, you are welcome and encouraged
to attend a scheduled meeting on August 15, 2002 at the Crystal
Clear Water Office at 9 AM.
Educational
Information:
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 EPA's Safe Drinking Water Hotline
(1-800-426-4791).
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, and can pick up substances resulting from the presence
of animals or from human activity.
Contaminants
that may be present in source water include:
**Microbial
contaminants such as viruses and bacteria, which may come from
sewage treatment plants, septic systems, agricultural livestock
operations, and wildlife.
**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.
**Pesticides and herbicides, which may come from a variety of
sources such as agriculture, urban storm runoff, and residential
uses.
**Organic chemical contaminants, including synthetic
and volatile organic chemicals, which are byproducts of industrial
processes and petroleum production, and can also come from gas
stations, urban storm water runoff, and septic systems.
**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, EPA prescribes regulations,
which limit the amount of certain contaminants in water provided
by public water systems. Food and Drug Administration regulations
establish limits for contaminants in bottled water, which must
provide the same protection for public health.
Crystal
Clear Water Supply Corporation's
2001 Monitoring Results for Contaminants in Drinking Water
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 microbial contaminants are available from the Safe Drinking
Water Hotline (1-800-426-4791).
|
Contaminant
|
Unit
|
MCLG
Health Goal
|
MCL
EPA's Limits
|
Level
Detected (Highest)
|
Range
Detected
|
Violation?
(Yes/No)
|
Year
Sampled (1)
|
Potential
Source of Contamination
|
|
Microbiological
Contaminants
|
|
Total
Coliform Bacteria
|
Present/
Absent
|
0
|
Presence
of coliform bacteria in greater than or equal to 5% of monthly
samples
|
1
Positive
|
N/A
|
NO
|
2001
|
Naturally
present in the environment.
|
|
Turbidity
(2)
|
NTU
|
NA
|
TT
|
1.89
|
97.22%
of Samples Met Limits
|
NO
|
2001
|
Soil
Runoff.
|
|
Inorganic
Contaminants
|
|
Barium
|
ppm
|
2
|
2
|
0.039
|
0.03
- 0.039
|
NO
|
1999
|
Discharge
of drilling wastes; Discharge from metal refineries; Erosion
of natural deposits.
|
|
Copper
|
ppm
|
1.3
|
1.3
= AL
|
0.3130
(90th percentile)
|
All
sites below action level.
|
NO
|
2000
|
Corrosion
of household plumbing systems; Erosion of natural deposits;
Leaching from wood preservatives.
|
|
Fluoride
|
ppm
|
4
|
4
|
1.2
|
0.1-1.2
|
NO
|
2001
|
Erosion
of natural deposits; Water additive to promote strong teeth;
Discharge from fertilizer and aluminum factories.
|
|
Lead
|
ppb
|
0
|
15
= AL
|
9.2
(90th percentile)
|
All
sites below action level.
|
NO
|
2000
|
Corrosion
of household plumbing systems; Erosion of natural deposits.
|
|
Nitrate
|
ppm
|
10
|
10
|
1.83.
|
ND-1.83
|
NO
|
1999
|
Runoff
from fertilizer use; Leaching from septic tanks, sewage;
Erosion of natural deposits.
|
|
Volatile
Organic Contaminants
|
|
Total
Trihalomethanes (TTHM's) (3)
|
ppb
|
0
|
100
|
73.74
(HARA)
|
0.00
- 139.44
|
NO
|
2001
|
Byproduct
of drinking water chlorination.
|
|
Unregulated
Contaminants (4)
|
|
Bromodichloromethane
|
ppb
|
NA
|
NA
|
17.58
average
|
ND
- 25.1
|
NO
|
2001
|
Byproduct
of drinking water chlorination.
|
|
Bromoform
|
ppb
|
NA
|
NA
|
.72
average
|
ND
- 1.2
|
NO
|
2001
|
Byproduct
of drinking water chlorination.
|
| Chloroform |
ppb |
NA |
NA |
20.82
average |
ND
- 25.8 |
NO |
2001 |
Byproduct
of drinking water chlorination. |
| Chlorodibromomethane |
ppb |
NA |
NA |
8.73
average |
ND
- 12.55 |
NO |
2001 |
Byproduct
of drinking water chlorination. |
Notes:
1)
The state allows us to monitor for some contaminants less than
once per year because the concentrations of these contaminants
do not change frequently. Some of our data, though accurate, are
more than one year old.
(2)
Turbidity has no health effects. However, turbidity can interfere
with disinfection and provide a 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.
(3)
Some people who drink water containing trihalomethanes in excess
of MCL over many years may experience problems with their liver,
kidney or central nervous system, and may have an increased risk
of getting cancer.
(4)
Unregulated contaminant monitoring helps EPA to determine where
certain contaminants occur and whether it needs to regulate those
contaminants.
Definitions:
Maximum
Contaminant Level: 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 (MCLG): 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.
90th Percentile: 90% of samples are equal to or less than
the number in the chart.
NTU or Nephelometric Turbidity Units: A measure
of clarity.
NA: Not applicable.
ND: Not detectable at testing limits.
Ppb or parts per billion: micrograms per liter (ug/l).
Ppm or parts per million: milligrams per liter (mg/l)
Treatment Technique or TT: A required process intended
to reduce the level of contaminant in drinking water.
Action Level or AL: The concentration of a contaminant,
which if exceeded, triggers treatment or other requirements, which
a water system must follow.
TNRCC: Texas Natural Resource Conservation Commission
HARA: Highest Annual Rolling Average
Water
Conservation Tips
At
Home:
- Fix leaking faucets, pipes, toilets, etc.
- Install
water-saving devices in faucets, toilets, and appliances.
- Wash only
full loads of laundry.
- Don't use
the toilet for trash disposal.
- Don't let
the water run while shaving, washing, or brushing teeth.
- Run the
dishwasher only when full.
Outdoors:
- Water the lawn and garden as little as possible.
- Choose
plants that don't need much water.
- Repair
leaks in faucets and hoses.
- Use water
from a bucket to wash your car, and save the hose for rinsing.
- Obey any
and all water bans or regulations.
2000 Consumer Confidence Report
2001 Consumer Confidence Report
2002 Consumer Confidence Report
2003 Consumer Confidence Report
2004 Consumer Confidence Report
2005 Consumer Confidence Report
2006 Consumer Confidence Report
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