Crystal Clear Water Supply Corporation CCR 2002

Crystal Clear Water Supply Corporation has served members since 1964!

General Information

CRYSTAL CLEAR WATER SUPPLY CORPORATION

2004 Annual Water Quality Report
PWS # 0940015

Special Notice for the ELDERLY, INFANTS, CANCER PATIENTS, people with HIV/AIDS or other immune problems:

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/Centers for Disease Control (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).

Public Participation Opportunities

Date: Anytime

Phone: (830) 372 - 1031 Ext. 203

To learn about future public meetings (concerning your drinking water), or to request to schedule one, please call us.

Our Drinking Water Meets or Exceeds All Federal (EPA) Drinking Water Requirements.

This report is a summary of the quality of the water we provide our customers. The analysis was made by using the data from the most recent U.S. Environmental Protection Agency (EPA) required tests and is presented below. We hope this information helps you become more knowledgeable about what's in your drinking water.

WATER SOURCES:

The sources of drinking water (both tap water 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 before treatment include: microbes, inorganic contaminants, pesticides, herbicides, radioactive contaminants, and organic chemical contaminants.

En Espanol

Este informe reporte incluye informacion importante sobre el agua potable. Si tiene preguntas o comentarios sobre este informe en espanol, favor de llarmar al tel. (830) 372-1031 - para hablar con una persona bilingue en espanol.

Where do we get our drinking water?

Our drinking water is obtained from Ground and Surface water sources. It comes from the following Lake/River/Reservoir/Aquifer:: Carrizo Aquifer, Edwards Aquifer, Guadelupe and San Marcos Rivers. TCEQ completed an assessment of our source water and results indicate that some of our sources are susceptible to certain contaminants. The sampling requirements for our water system are based on the susceptibility and previous sample data. Any detections of these contaminants will be found in this report. If we receive our purchase water from another system, their susceptibility is not included in this assessment. For more information on source water assessments and protection efforts at our system, please contact us.

ALL drinking water may contain contaminants.

When drinking water meets federal standards there may not be any health based benefits to purchasing bottled water or point of use devices. Drinking water, including bottled water, may resonably 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 Agency's Safe Drinking Water Hotline (800-426-4791).

Secondary Constituents

Many constituents (such as calcium, sodium, or iron) which are often found in drinking water, can cause taste, color or odor problems. The taste and odor constituents are called secondary constituents and are regulated by the State of Texas, not the EPA. These constituents are not causes for health concern. Therefore, secondaries are not required to be reported in this document but they greatly affect the appearance and taste of your water.

About The Following Pages

The pages that follow list all of the federally regulated or monitored constituents which have been found in your drinking water. U.S. EPA requires water systems to test up to 97 contaminants.

Definitions

Maximum Contaminant Level (MCL): 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.
Maximum Residual Disinfectant Level (MRDL): The highest level of disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Maximum Residual Disinfectant Level Goal (MRDLG):The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLG's do not reflect the benefits of the use of disinfectants to control microbial contamination.
Treatment Technique (TT): A required process intended to reduce the level of contaminant in drinking water.
Action Level (AL): The concentration of a contaminant, which if exceeded, triggers treatment or other requirements, which a water system must follow.

Abbreviations

NTU - Nephelometric Turbidity Units
MFL - million fibers per liter (a measure of asbestos)
pCi/l - picocuries per liter (a measure of radioactivity)
ppm - parts per million, or milligrams per liter (mg/l)
ppb - parts per billion, or micrograms per liter (mg/l)
ppt - parts per trillion, or nanograms per liter
ppq - parts per quadrillion, or picograms per liter

Inorganic Contaminants

Year (Range)	Contaminant	Average Level	Minimum Level	Maximum Level	MCL	MCLG	Unit of Measure	Source of Constituent
2002 - 2002	Barium	0.043	0.0382	0.0382	2	2	ppm	Disharge of drilling wastes; discharge from metal refineries; erosion of natural deposits.
2002 - 2002	Chromium	2.081	2.53	2.53	100	100	ppb	Discharge from steel and pulp mills; erosion of natural deposits.
2002 - 2002	Fluoride	0.299	0.164	0.164	4	4	ppm	Erosion of natural deposits; water additive which promotes strang teeth; discharge from fertilizer and aluminum factories.
2004 - 2004	Nitrate	1.281	1.74	1.94	10	10	ppm	Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits.
2002 - 2002	Combined Radium 226 & 228	0.300	0	0	5	0	pCi/l	Erosion of natural deposits.
2002 - 2002	Gross beta emitters	0.825	0	0	50	0	pCi/l	Decay of natural and man-made deposits.
2002 - 2002	Gross alpha	0.525	0	0	15	0	pCi/l	Erosion of natural deposits.

Organic Contaminants - NOT TESTED OR REPORTED, OR NONE DETECTED

Maximum Residual Disinfectant Level

Year	Disinfectant	Average Level	Minimum Level	Maximum Level	MCL	MCLG	Unit of Measure	Source of Constituent
2004	Chlorine	0.810	0.21	2.21	4	4	ppb	Disinfectant used to control microbes.

Disinfection Byproducts

Year (Range)	Contaminant	Average Level	Minimum Level	Maximum Level	MCL	Unit of Measure	Source of Constituent
2004 - 2004	Total Haloaectic Acids	35.295	0	126.5	60	ppb	Byproduct of drinking water disinfection.
2004 - 2004	Total Trihalomethanes	70.289	0	191.5	80	ppb	Byproduct of drinking water disinfection.

Unregulated Contaminants

Year (Range)	Contaminant	Average Level	Minimum Level	Maximum Level	Unit of Measure	Source of Contaminant
2004 - 2004	Chloroform	13.122	0	45.47	ppb	Unregulated contaminant monitoring helps EPA to determine where certain contaminants occur and whether it needs to regulate those contaminants.
2003 - 2003	Bromoform	0.951	0	1	ppb	Unregulated contaminant monitoring helps EPA to determine where certain contaminants occur and whether it needs to regulate those contaminants.
2004 - 2004	Bromodichloromethane	10.109	0	26.66	ppb	Unregulated contaminant monitoring helps EPA to determine where certain contaminants occur and whether it needs to regulate those contaminants.
2003 - 2003	Dibromochloromethane	6.092	0	0.9	ppb	Unregulated contaminant monitoring helps EPA to determine where certain contaminants occur and whether it needs to regulate those contaminants.

Lead and Copper

Year (Range)	Contaminant	The 90th Percentile	Number of Sites Exceeding Action Level	Action Level	Unit of Measure	Source of Contaminant
2004 - 2004	Lead	3.8000	0	15	ppb	Corrosion of household plumbing systems; erosion of natural deposits.
2003 - 2003	Copper	0.2550	0	1.3	ppb	Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives.

Turbidity

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 oprganisms. These organisms include bacteria, viruses, and parasites that can cause symptoms such as nausea, cramps, diarrhea and associated headaches.

Year	Contaminant	Highest single measurement	Lowest monthly % of samples meetings limits	Turbidity limits	Unit of measure	Source of constituent
2004 - 2004	Turbidity	0.69		0.3	NTU	Soil runoff.

The water system must provide TOC information to thier customers by completeing this section.

COLIFORMS

What are coliforms?
Total coliform bacteria are used as indicators of microbial contamination of drinking water because testing for them is easy. While not disease-causing organisms themselves, they are often found in association with other microbes that are capable of causing disease. Coliform bacteria are more hardy than many disease-causing organisms; therefore, their absence from water is a good indication that the water is microbiologically safe for human consumption.

Fecal coliform bacteria and, in particular, E. coli, are members of the coliform bacteria group originating in the intestinal tract of warm-blooded animals and are passed into the environment through feces. The presence of fecal coliform bacteria (E.coli) in drinking water may indicate recent contamination of the drinking water with fecal material. The following table indicates whether total coliform or fecal coliform bacteria were found in the monthly drinking water samples submitted for testing by your water supplier last year.

Year	Contaminant	Highest Monthly Number of Positive Samples	MCL	Unit of Measure	Source of Contaminant
2004	Total Coliform Bacteria	1	*	Presence	Naturally present in the environment

*Two or more coliform found samples in any single month.

Fecal Coliform - NOT DETECTED

Availability of Unregulated Contaminant Monitoring Rule Data (UCMR)
We participated in gathering data under the UCMR in order to assist EPA in determining the occurrence of possible drinking water contaminants. If any unregulated contaminants were detected, they are shown in the tables elsewhere in this report. This data may also be found on EPA's web site at http://www.epa.gov/safewater/data/ncod.html, or you can call the Safe Drinking Water Hotline at 1-800-426-4791.

Secondary and Other Not Regulated Constituents
(No associated adverse health effects)

Year (Range)	Constituent	Average Level	Minimum Level	Maximum Level	Limit	Unit of Measure	Source of Constituent
2002 - 2002	Aluminum	49.857	0	0	50	ppb	Abundant naturally occurring element.
2002 - 2002	Bicarbonate	224.325	261	261	NA	ppm	Corrosion of carbonate rocks such as limestone.
2002 - 2002	Calcium	73.793	91.9	91.9	NA	ppm	Abundant naturally occurring element.
1999 - 1999	Chloride	20.127	21	21	300	ppm	Abundant naturally occurring element; used in water purification; byproduct of oil field activity.
2002 - 2002	Copper	0.008	0.00406	0.00406	NA	ppm	Corrosion of household plumbing systems; erosion of natual deposits; leaching from wood preservatives.
2002 - 2002	Hardness as Ca/Mg	247.050	298	298	NA	ppm	Naturally occurring calcium and magnesium.
2002 - 2002	Iron	0.012	0	0	0.3	ppm	Erosion of natural deposits; iron or steel water delivery equipment or facilities.
2002 - 2002	Lead	1.583	1.26	1.26	NA	ppb	Corrosion of household plumbing systems; erosion of natural deposits.
2002 - 2002	Magnesium	15.634	16.6	16.6	NA	ppm	Abundant naturally occuring element.
2002 - 2002	Manganese	1.164	0	0	50	ppm	Abundant naturally occuring element.
2002 - 2002	Nickel	1.726	1.48	1.48	NA	ppb	Erosion of natural deposits.
2002 - 2002	pH	7.874	7.97	7.97	NA	units	Measure of corrositivity of water.
2002 - 2002	Sodium	12.837	11.6	11.6	NA	ppm	Erosion of natural deposits; byproduct of oil field activity.
2002 - 2002	Sulfate	25.108	24.5	24.5	300	ppm	Naturally occuring; common industrial byproduct; byproduct of oil field activity.
2002 - 2002	Total Alkalinity as CaCO3	218.117	261	261	NA	ppm	Naturally occuring soluble mineral salts.
2002 - 2002	Total Dissolved Solids	301.063	336	336	1000	ppm	Total dissolved in mineral constituents in water.
1999 - 1999	Total Hardness as CaCO3	242.500	271	271	NA	ppm	Naturally occruing calcium.
2002 - 2002	Zinc	18.248	0	0	5000	ppb	Moderately abundant naturally occurring element; used in the metal industry.