THE CITY OF BASTROP IS COMMITTED TO COMPLIANCE WITH THE AMERICANS WITH DISABILITIES ACT. REASONABLE MODIFICATIONS AND EQUAL ACCESS TO COMMUNICATIONS WILL BE PROVIDED UPON REQUEST. PLEASE CALL 512-321-2124.

Water and Wastewater Department

OUR DRINKING WATER IS REGULATED by the Texas Commission on Environmental Quality (TCEQ) and they have determined that certain water quality issues exist which prevent our water from meeting all the requirements as stated in the Federal Drinking Water Standards. Each issue is listed in this report as a violation and we are working closely with the TCEQ to achieve solutions.

The tables below contain 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. (To print this report, please set your internet browser's page set up options to 'landscape' page orientation.)

ABBREVIATIONS NTU - Nephelometric Turbidity Units 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 (ug/l) DEFINITIONS Maximum Contaminant Level (MCL) - The highest permissible level of a contaminant in drinking water. MCLs are set as close to the MCLGs 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 health risk. MCLGs 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 and microbial contaminants. 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 contamination. Treatment Technique (TT) - A required process intended to reduce the level of a 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.

Inorganic Contaminants
Year (Range)	Contaminant	Average Level	Minimum Level	Maximum Level	MCL	MCLG	Unit of Measure	Source of Contaminant
2005	Barium	0.128	0.118	0.138	2	2	ppm	Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits.
2006-2005	Flouride	0.8	0.8	0.8	4	4	ppm	Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories.
2006	Nitrate	0.81	0.71	0.91	10	10	ppm	Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits.
2002	Gross beta emitters	3.6	3.3	3.9	50	0	pCi/L	Decay of natural and man-made deposits.
2002	Gross alpha	0.9	0	1.8	15	0	pCi/L	Erosion of natural deposits.

Maximum Residual Disinfectant Level
Year	Contaminant	Average Level	Minimum Level	Maximum Level	MRDL	MCLG	Units	Source of Contaminant
2006	Chlorine Residual, Free	0.98	0.21	2.2	4	<4	ppm	Disinfectant used to control microbes.

Organic Contaminants: Testing Waived, Not Reported, or None Detected.
Turbidity: Not Required.
Total Coliform: Reported Monthly Tests Found NO COLIFORM BACTERIA
Fecal Coliform: Reported Monthly Tests Found NO FECAL COLIFORM BACTERIA.

Disinfection Byproducts
Year	Contaminant	Average Level	Minimum Level	Maximum Level	MCL	Unit of Measure	Source of Contaminant
2006	Total Haloacetic Acids	13.6	11	16.2	60	ppb	Byproduct of drinking water disinfection.
2006	Total Trihalomethanes	64.4	50	78.8	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	Bromoform	17.45	15.7	19.2	ppb	Byproduct of drinking water disinfection.
2004	Bromodichloromethane	12.6	11.1	14.1	ppb	Byproduct of drinking water disinfection.
2004	Dibromochloromethane	25.1	23.2	27	ppb	Byproduct of drinking water disinfection.
2004	Chloroform	3.15	2.5	3.8	ppb	Byproduct of drinking water disinfection.

Lead and Copper
Year (Range)	Contaminant	The 90th Percentile	Number of Sites Exceeding Action Level	Action Level	Unit of Measure	Source of Contaminant
2006	Lead	4.2	1	15	ppb	Corrosion of household plumbing systems; erosion of natural deposits.
2006	Copper	1.94	1	1.3	ppm	Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservations.

Violations
Violation Type	Health Effects	Duration	Explanations	Steps to Correct
N/A	N/A	N/A	N/A	N/A

SECONDARY CONSTITUENTS - Many constituents (such as calcium, sodium, or iron) which are often found in drinking water, can cause taste, color, and 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 may greatly affect the appearance and taste of your water.

Secondary and Other Not Regulated Constituents (No associated adverse health effects)
Year (Range)	Constituents	Average Level	Minimum Level	Maximum Level	Limit	Unit of Measure	Source of Constituents
2006 -     2005	Bicarbonate	289	251	326	NA	ppm	Corrosion of carbonate rocks such as limestone.
2005	Calcium	91.3	89.6	93	NA	ppm	Abundant naturally occurring element.
2006 - 2005	Chloride	42	38	46	300	ppm	Abundant naturally occurring element; used in water purification; byproduct of oil field activity.
2005	Copper	0.068	0.021	0.116	1	ppm	Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives.
2002	Hardness as Ca/Mg	286	286	286	NA	ppm	Naturally occurring calcium and magnesium.
2005	Magnesium	19.6	18.1	21	NA	ppm	Abundant naturally occurring element.
2005	Manganese	0.0153	0	0.0305	.05	ppb	Abundant naturally occurring element.
2005	Nickel	0.002	0.001	0.002	NA	ppm	Erosion of natural deposits.
2006      2005	pH	7.1	7.1	7.1	7	units	Measure of corrosivity of water.
2005	Sodium	26	24	27	NA	ppm	Erosion of natural deposits; byproduct of oil field activity.
2006      2005	Sulfate	42	40	44	300	ppm	Naturally occurring; common industrial byproduct; byproduct of oil field activity.
2006      2005	Total Alkalinity as CaCO3	237	206	267	NA	ppm	Naturally occurring soluble mineral salts.
2006      2005	Total Dissolved Solids	383	356	409	1000	ppm	Total dissolved mineral constituents in water.
2005	Total Hardness as CaCO3	308	298	318	NA	ppm	Naturally occurring calcium.
2005	Zinc	0.003	0	0.006	5	ppb	Moderately abundant naturally occurring element; used in the metal industry.

Year	Constituent	Highest Level at Any Sampling Point	Range of Detects (Low - High)	MCL	MCLG	Units	Source of Contaminant
2004	Arsenic	< 2.0	< 2.0 - < 2.0	50*		ppb	Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes.

THE CITY OF BASTROP IS COMMITTED TO COMPLIANCE WITH THE AMERICANS WITH DISABILITIES ACT. REASONABLE MODIFICATIONS AND EQUAL ACCESS TO COMMUNICATIONS WILL BE PROVIDED UPON REQUEST. PLEASE CALL 512-321-2124.

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