City of Terrell
Water Quality Report
2015 Consumer Confidence Report

For Period of January 1 to December 31, 2015

 

About our Drinking water

Terrell water is safe to DrinkWhy you received this report
This Annual Water Quality Report is for the period of January 1 to December 31, 2015.

This report is intended to provide you with important information about your drinking water and the efforts made by the water system to provide safe drinking water.

CITY OF TERRELL is Purchased Surface Water.

For more information regarding this report contact:
Dick L. Boyd, Phone ( 972) 551-6635.

En Espanol
Este reporte incluye informacion importante sobre el agua para tomar. Para asistencia en espanol, favor de llamar al telefone (972) 551-6635.
Informe de Calidad del Agua para imprimir en formato pdf

Este reporte incluye informacion importante sobre el agua tomar. Para asistencia en espanol, favor de llamar at telefono (972) 551-6600.

Sources of Drinking Water
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 pickup substances resulting from the presence of animals or from human activity. The City of Terrell receives pretreated water from the North Texas Municipal Water District (NTMWD). The primary source is Lake Tawakoni.

The TCEQ has completed a Source Water Assessment for all drinking water systems that own their sources. This report describes the susceptibility and types of constituents that may come into contact with your drinking water source based on human activities and natural conditions.

You may contact NTMWD concerning the assessment report, CC FROM TX0430044 at the NTMWD office: 501 E. Brown St., Wylie, TX 75098, 972-442-5405. For more information on source water, please refer to the Source Water Assessment Viewer at the following URL: http://tceq.texas.gov/gis/swaview.

Further details about sources and source-water assessments are available in Drinking Water Watch at the following URL: http://dww2.tceq.texas.gov/DWW/

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 EPAs Safe Drinking Water Hotline at (800) 426-4791.

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 water runoff, and residential uses.

- Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by-products 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.

City of Terrell has superior rated public water 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. FDA regulations establish limits for contaminants in bottled water which must provide the same protection for public health.

Contaminants may be found in drinking water that may cause taste, color, or odor problems. These types of problems are not necessarily causes for health concerns. For more information on tastes, odor, or coloring of drinking water, please contact Water Quality at (972)5 51-6635 or City Hall at (972) 551-6600.

For Customers With Special Health Concerns

You may be more vulnerable than the general population to certain microbial contaminants, such as Cryptosporidium, in drinking water. Infants, some elderly or immuno-compromised persons such as those undergoing chemotherapy for cancer; those who are undergoing organ transplants; those who are undergoing treatment with steroids; and other people with HIV/AIDS or other immune system disorders can be particularly at risk from infections. You should seek advice about drinking water from your physicians or health care provider. Additional guidelines on appropriate means to lessen the risk of infection by Cryptosporidium are available from the EPAs Safe Drinking Water Hotline at (800) 426-4791.

If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. We are responsible for providing high quality drinking water, but we cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at http://www.epa.gov/safewater/lead.

Public Participation

The public is welcomed to attend the City Of Terrell City Council Meetings held the first and third Tuesday of every month.

Definitions

- Avg: Regulatory compliance with some MCLs are based on running annual average of monthly samples
- Maximum Contaminant Level Goal Or MCLG: The level of a contaminant in drinking water below which there is no known or expected rick to health. MCLGs allow for a margin of safety.
- Maximum Contaminant Levels or MCL: 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 treatment technology.
- Maximum Residual Disinfectant Level or MRDL: The highest level of a 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 or MRDLG: The level of a 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 contaminants.
- MFL: Millions of fibers per liter (a measure of asbestos)
- na: Not Applicable
- NTU: Nephelometric Turbidity Unit
- pCi/L: Picocuries Per Liter (a measure of radioactivity)
- ppb: Parts per billion - or one ounce in 7,350,000 gallons of water.
- ppm: Milligrams per liter or parts per million - or one ounce in 7,350 gallons of water
- ppt: Parts per trillion or nanograms per liter (ng/l)
-ppq: parts per quadrillion, or picograms per liter (pg/l)

 

Printable Water Quality Report in pdf format

Informe de Calidad del Agua para imprimir en formato pdf


Coliform Bacteria

Maximum Contaminant
Level Goal
Total Coliform Maximum
Contaminant Level
Highest No. of Positive
Fecal Coliform or E. Coli Maximum
Contaminant Level
Total No. of Positive E. Coli or Fecal Coliform Samples
Violation
Likely Source of Contamination
0
1 positive monthly sample
1
1 w/positive E. Coli/fecal repeat or Total Coliform repeat sample
0
no
Naturally present in the environment.

 

Lead and Copper

Year Sampled
Substance
MCLG
Action Level 90th Percentile # Sites Over AL
Units Violations Likely Source of contamination
8/14/2013 Copper 1.3 1.3 0.441 30 ppm No Erosion of natural Deposits; Leaching from wood preservatives; Corrosion of household plumbing systems
8/14/2013 Lead 0 15 2.8

30

ppb No Corrosion of household plumbing systems; Erosion of natural deposits

Definitions:

Action Level Goal (ALG): The level of a contaminant in drinking water below which there is no known or expected risk to health. ALGs allow for a margin of safety.
Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other requirements, which a water system must follow.


Water Quality Test Results

Regulated contaminants

Collection Date
Substance
Highest Level Detected
Range of Levels Detected
MCLG
MCL
Units
Violations
Likely Source of Contamination
2015 Haloacetic
Acid (HAA5)
18 6.3-29.8 No Goal for the total 60 ppb No By-Product of drinking water disinfection
2015 Triahalomethanes
(TTHM)
46 17-51.2
No Goal for the total 80 ppb No By-product of drinking water disinfection

 

Inorganic Contaminants

Collection Date
Substance
Highest Level Detected
Range of Levels Detected MCLG MCL
Units Violations Likely Source of Contamination
2015 Nitrate (Measured as Nitrogen)
1 0.964-0.964 10 10 ppm No Runoff from fertilizer use; Leaching from septic tanks: erosion of natural deposits

 

Violation Table

Lead and Copper Rule

The Lead and Copper Rule protects public health by minimizing lead and copper levels in drinking water, primarily by reducing water corrosivity. Lead and copper enter drinking water mainly from corrosion of lead and copper containing plumbing materials.

Violation Type Violation Begin Violation End Violation Explaination

Lead and Copper Notice (LCR)

12/30/2013

2015

We failed to provide the results of the lead tap water monitoring to the consumers at the location water was tested. These were supposed to be provided no later than 30 days after learning the results

The 2015 Consumer Confidence Report Appendix A, which provides a complete listing of all chemicals and parameters tested is attached to this report. Copies of Appendix A may be obtained at:
* City Hall at 201 E. Nash St., 972-551-6600
* City Service Center at 400 Industrial Blvd., 972-551-6678,
* Riter C. Hulsey Public Library at 301 N. Rockwall St., 972-551-6663.


City of Terrell 2015 CCR - APPENDIX A

North Texas Municipal Water District Tawakoni WTP Consumer Confidence Report For Year 2015

 

Coliform Bacteria

Maximum Contaminant
Level Goal
Total Coliform Maximum
Contaminant Level
Highest No. of Positive
Fecal Coliform or E. Coli Maximum
Contaminant Level
Total No. of Positive E. Coli or Fecal Coliform Samples
Violation
Likely Source of Contamination
0
1 positive monthly sample
1
0
0
no
Naturally present in the environment.
NOTE: Reported monthly tests found no fecal coliform bacteria. Coliforms are bacteria that are naturally present in the environment and are used as an indicator that other, potentially harmful, bacteria may be present.

 

Regulated Contaminants

Inorganic Contaminants

Disinfectants and Disinfection By-Products
Collection
Date
Highest Level
Detected
Range of Levels
Detected
MCLG
MCL
Units
Violation
Likely Source of Contamination
Total Haloacetic Acids (HAA5)
2015
18
6.3-29.8
No goal for
the total
60
ppb
No
By-product of drinking water chlorination.
Total Trihalomethanes (TThm)
2015
46
17-51.2
No goal for
the total
80
ppb
No
By-product of drinking water chlorination.
Bromate
2015
Levels lower than detect level
0-0
5
10
ppb
No
By-product of drinking water ozanation.
NOTE: Not all sample results may have been used for calculating the Highest Level Detected because some results may be part of an evaluation to determine where compliance sampling should occur in the future.

 

Regulated Contaminants

Inorganic Contaminants

Inorganic Contaminants
Collection
Date
Highest Level
Detected
Range of Levels
Detected
MCLG
MCL
Units
Violation
Likely Source of Contamination
Antimony
2015
Levels lower than detect level
0-0
6
6
ppb
No
Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder; and test addition.
Arsenic
2015
Levels lower than detect level
0-0
0
10
ppb
No
Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes.
Barium
2015
.065
.065-.065
2
2
ppm
No
Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits.
Beryllium
2015
Levels lower
than detect level
0 - 0
4
4
ppb
No
Discharge from metal refineries and coal-burning factories; discharge from electrical, aerospace, and defense industries.
Cadmium
2015
Levels lower
than detect level
0 - 0
5
5
ppb
No
Corrosion of galvanized pipes; erosion of natural deposits; discharge from metal refineries; runoff from waste batteries and paints.
Chromium
2015
.00051
.00051-.00051
100
100
ppb
No
Discharge from steel and pulp mills; erosion of natural deposits.
Fluoride
2015
0.274
.274-.274
4
4
ppm
No
Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories.
Mercury
2015
Levels lower
than detect level
0 - 0
2
2
ppb
No
Erosion of natural deposits; discharge from refineries and factories; runoff from landfills; runoff from cropland.
Nitrate
(measured as Nitrogen)
2015
1
0.964-0.964
10
10
ppm
No
Runoff from fertilizer use; leaching from septic tanks; sewage; erosion of natural deposits.
Nitrate Advisory: Nitrate in drinking water at levels above 10 ppm is a health risk for infants of less than six months of age. High nitrate levels in drinking water can cause blue baby syndrome.
Nitrate levels may rise quickly for short periods of time because of rainfall or agricultural activity. If you are caring for an infant you should ask advice from your health care provider.
Selenium
2015
0.0011
0.0011 - 0.0011
50
50
ppb
No
Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines.
Thallium
2015
Levels lower
than detect level
0 - 0
0.5
2
ppb
No
Discharge from electronics, glass, and leaching from ore-processing sites; drug factories.

Radioactive Contaminants

Inorganic Contaminants
Collection
Date
Highest Level
Detected
Range of Levels
Detected
MCLG
MCL
Units
Violation
Likely Source of Contamination
Beta/photon emitters
2/12/2012
Levels lower than detect level
0 - 0
0
4
mrem/yr
No
Decay of natural and man-made deposits.
Gross alpha excluding
radon and uranium
2/12/2012
Levels lower
than detect level
0 - 0
0
15
pCi/L
No
Erosion of natural deposits.
Radium-228
2/12/2012
Levels lower than detect level
0 - 0
0
5
pCi/L
No
Erosion of natural deposits.

Synthetic organic contaminants including pesticides and herbicides

Inorganic Contaminants
Collection
Date
Highest Level
Detected
Range of Levels
Detected
MCLG
MCL
Units
Violation
Likely Source of Contamination
2, 4, 5 - TP (Silvex)
2015
Levels lower
than detect level
0 - 0
50
50
ppb
No
Residue of banned herbicide.
2, 4 - D
2015
Levels lower
than detect level
0 - 0
70
70
ppb
No
Runoff from herbicide used on row crops.
Alachlor
2015
Levels lower
than detect level
0 - 0
0
2
ppb
No
Runoff from herbicide used on row crops.
Atrazine
2015
Levels lower
than detect level
.12 - .12
3
3
ppb
No
Runoff from herbicide used on row crops.
Benzo (a) pyrene
2015
Levels lower
than detect level
0 - 0
0
200
ppt
No
Leaching from linings of water storage tanks and distribution lines.
Carbofuran
2015
Levels lower
than detect level
0 - 0
40
40
ppb
No
Leaching of soil fumigant used on rice and alfalfa.
Chlordane
2015
Levels lower
than detect level
0 - 0
0
2
ppb
No
Residue of banned termiticide.
Dalapon
2015
Levels lower
than detect level
0 - 0
200
200
ppb
No
Runoff from herbicide used on rights of way.
Di (2-ethylhexyl) adipate
2015
Levels lower
than detect level
0 - 0
400
400
ppb
No
Discharge from chemical factories.
Di (2-ethylhexyl) phthalate
2015
Levels lower
than detect level
0 - 0
0
6
ppb
No
Discharge from rubber and chemical factories.
Dibromochloropropane
(DBCP)
2015
Levels lower
than detect level
0 - 0
0
0
ppt
No
Runoff / leaching from soil fumigant used on soybeans, cotton, pineapples, and orchards.
Dinoseb
2015
Levels lower
than detect level
0 - 0
7
7
ppb
No
Runoff from herbicide used on soybeans and vegetables.
Endrin
2015
Levels lower
than detect level
0 - 0
2
2
ppb
No
Residue of banned insecticide.
Ethylene dibromide
2015
Levels lower
than detect level
0 - 0
0
50
ppt
No
Discharge from petroleium refineries.
Heptachlor
2015
Levels lower
than detect level
0 - 0
0
400
ppt
No
Residue of banned termiticide.
Heptachlor epoxide
2015
Levels lower
than detect level
0 - 0
0
200
ppt
No
Breakdown of heptachlor.
Hexachlorobenzene
2015
Levels lower
than detect level
0 - 0
0
1
ppb
No
Discharge from metal refineries and agricultural chemical factories.
Hexachlorocyclopentadiene
2015
Levels lower
than detect level
0 - 0
50
50
ppb
No
Discharge from chemical factories.
Lindane
2015
Levels lower
than detect level
0 - 0
200
200
ppt
No
Runoff / leaching from insecticide used on cattle, lumber, and gardens.
Methoxychlor
2015
Levels lower
than detect level
0 - 0
40
40
ppb
No
Runoff / leaching from insecticide used on fruits, vegetables, alfalfa, and livestock.
Oxamyl [Vydate]
2015
Levels lower
than detect level
0 - 0
200
200
ppb
No
Runoff / leaching from insecticide used on apples, potatoes, and tomatoes.
Pentachlorophenol
2015
Levels lower
than detect level
0 - 0
0
1
ppb
No
Discharge from wood preserving factories.
Simazine
2015
Levels lower
than detect level
0 - 0
4
4
ppb
No
Herbicide runoff.
Toxaphene
2015
Levels lower
than detect level
0 - 0
0
3
ppb
No
Runoff / leaching from insecticide used on cotton and cattle.

Volatile Organic Contaminants

Inorganic Contaminants
Collection
Date
Highest Level
Detected
Range of Levels
Detected
MCLG
MCL
Units
Violation
Likely Source of Contamination
1, 1, 1 - Trichloroethane
2015
Levels lower
than detect level
0 - 0
200
200
ppb
No
Discharge from metal degreasing sites and other factories.
1, 1, 2 - Trichloroethane
2015
Levels lower
than detect level
0 - 0
3
5
ppb
No
Discharge from industrial chemical factories.
1, 1 - Trichloroethylene
2015
Levels lower
than detect level
0 - 0
7
7
ppb
No
Discharge from industrial chemical factories.
1, 2, 4 - Trichlorobenzene
2015
Levels lower
than detect level
0 - 0
70
70
ppb
No
Discharge from textile-finishing factories.
1, 2 - Dichloroethane
2015
Levels lower
than detect level
0 - 0
0
5
ppb
No
Discharge from industrial chemical factories.
1, 2 - Dichloropropane
2015
Levels lower
than detect level
0 - 0
0
5
ppb
No
Discharge from industrial chemical factories.
Benzene
2015
Levels lower
than detect level
0 - 0
0
5
ppb
No
Discharge from factories; leaching from gas storage tanks and landfills.
Carbon Tetrachloride
2015
Levels lower
than detect level
0 - 0
0
5
ppb
No
Discharge from chemical plants and other industrial activities.
Chlorobenzene
2015
Levels lower
than detect level
0 - 0
100
100
ppb
No
Discharge from chemical and agricultural chemical factories.
Dichloromethane
2015
Levels lower
than detect level
0 - 0
0
5
ppb
No
Discharge from pharmaceutical and chemical factories.
Ethylbenzene
2015
Levels lower
than detect level
0 - 0
0
700
ppb
No
Discharge from petroleum refineries.
Styrene
2015
Levels lower
than detect level
0 - 0
100
100
ppb
No
Discharge from rubber and plastic factories; leaching from landfills.
Tetrachloroethylene
2015
Levels lower
than detect level
0 - 0
0
5
ppb
No
Discharge from factories and dry cleaners.
Toluene
2015
Levels lower
than detect level
0 - 0
1
1
ppm
No
Discharge from petroleum factories.
Trichloroethylene
2015
Levels lower
than detect level
0 - 0
0
5
ppb
No
Discharge from metal degreasing sites and other factories.
Vinyl Chloride
2015
Levels lower
than detect level
0 - 0
0
2
ppb
No
Leaching from PVC piping; discharge from plastics factories.
Xylenes
2015
Levels lower
than detect level
0 - 0
10
10
ppm
No
Discharge from petroleum factories; discharge from chemical factories.
cis - 1, 2 -
Dichloroethylene
2015
Levels lower
than detect level
0 - 0
70
70
ppb
No
Discharge from industrial chemical factories.
o - Dichlorobenzene
2015
Levels lower
than detect level
0 - 0
600
600
ppb
No
Discharge from industrial chemical factories.
p - Dichlorobenzene
2015
Levels lower
than detect level
0 - 0
75
75
ppb
No
Discharge from industrial chemical factories.
trans - 1, 2 -
Dicholoroethylene
2015
Levels lower
than detect level
0 - 0
100
100
ppb
No
Discharge from industrial chemical factories.

 

Turbidity

  Limit
(Treatment Technique)
Level Detected Violation Likely Source of Contamination
Highest single measurement 1 NTU 0.23 No Soil runoff.
Lowest monthly percentage (%) meeting limit 0.3 NTU 100.00% No Soil runoff.
Note: 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.

 

Maximum Residual Disinfectant Level

Disinfectant Type
Year
Average Level
Minimum Level
Maximum
Level
MRDL
MRDLG
Units
Source of Chemical
Chlorine Residual
(Chloramines)
2015
2.81
0.70
4.80
4.0
<4.0
ppm
Disinfectant used to control microbes.
Chlorine Dioxide
2015
0.005
0
0.56
0.8
0.8
ppm
Disinfectant
Chlorite
2015
0.09
0
0.74
1.0
N/A
ppm
Disinfectant

 

Total Organic Carbon
Contaminant
Collection
Date
Highest Level
Detected
Range of Levels
Detected
Unit of Measure
Source of Contaminant
Source Water
2015
11.1
5.81-11.10
ppm
Naturally present in environment
Drinking Water
2015
7.15
2.72-7.15
ppm
Naturally present in environment
Removal Ratio
2015
57.8%
35.6-57.8
% removal*
N/A

*Removal ratio is the percent of TOC removed by the treatment process divided by the percent of TOC required by TCEQ to be removed.

Note: Total Organic Carbon (TOC) has no health effects. The disinfectant can combine with TOC to form disinfection byproducts. Disinfection is necessary to ensure that water does not have unacceptable levels of pathogens. Byproducts of disinfection include trihalomethanes (THMs) and haloacetic acids (HAA) which are reported elsewhere in this report.


Lead and Copper

Year Sampled
Substance
MCLG
Action Level
90th Percentile
# Sites Over AL
Units
Violations
Likely Source of contamination
8/14/2013 Lead 0 15 2.8

0

ppb No Corrosion of customer plumbing. Action Level = 15.0
8/14/2013 Copper 1.3 1.3 0.441 0 ppm No By-product of drinking water disinfection.
Action Level = 1.3

Lead and Copper Rule

The Lead and Copper Rule protects public health by minimizing lead and copper levels in drinking water, primarily by reducing water corrosivity. Lead and copper enter drinking water mainly from corrosion of lead and copper containing plumbing materials.

Violation Type Violation Begin Violation End Violation Explanation
LEAD CONSUMER NOTICE (LCR) 12/30/2013 2015 We failed to provide the results of lead tap water monitoring to the consumers at the location water was tested. These were supposed to be provided no later than 30 days after learning the results.
ADDITIONAL HEALTH INFORMATION FOR LEAD: If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. The NTMWD is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at http://www.epa.gov/safewater/lead.

 

 

Unregulated Contaminants

Contaminants
Collection
Date
Highest Level
Detected
Range of Levels
Detected
Units
Likely Source of Contamination
Chloroform
2015
30.5
30.5-30.5
ppb
By-product of drinking water disinfection.
Bromoform
2015
Levels lower than detect level
Levels lower than detect levelv
ppb
By-product of drinking water disinfection.
Bromodichloromethane
2015
13.6
13.6-13.6
ppb
By-product of drinking water disinfection.
Dibromochloromethane
2015
6.63
6.63-6.63
ppb
By-product of drinking water disinfection.
NOTE: Bromoform, chloroform, dichlorobromomethane, and dibromochloromethane are disinfection by-products. There is no maximum contaminant level for these chemicals at the entry point to distribution.

 

Secondary and Other Constituents Not Regulated

Contaminants
Collection
Date
Highest Level
Detected
Range of Levels
Detected
Units
Likely Source of Contamination
Bicarbonate
2015
74.3
74.3-74.3
ppm
Corrosion of carbonate rocks such as limestone.
Calcium
2015
42.2
42.2-42.2
ppm
Abundant naturally occurring element.
Chloride
2015
13.7
13.7-13.7
ppm
Abundant naturally occurring element; used in water purification; by-product of oil field activity.
Hardness as Ca/Mg
2015
61.7
27.7-61.7
ppm
Naturally occurring calcium and magnesium.
Iron
2015
0.0573
.0573-.0573
ppm
Erosion of natural deposits; iron or steel water delivery equipment or facilities.
Magnesium
2015
3.39
3.39-3.39
ppm
Abundant naturally occurring element.
Manganese
2015
0.015
.015-.015
ppm
Abundant naturally occurring element.
Nickel
2015
0.003
.003-.003
ppm
Erosion of natural deposits.
pH
2015
7.7
7.7-7.7
ppm
Measure of corrosivity of water.
Sodium
2015
18.3
18.3-18.3
ppm
Erosion of natural deposits; by-product of oil field activity.
Sulfate
2015
60.6
60.6-60.6
ppm
Naturally occurring; common industrial by-product; by-product of oil field activity.
Total Alkalinity as CaCO3
2015
74.3
74.3-74.3
ppm
Naturally occurring soluble mineral salts.
Total Dissolved Solids
2015
212
212-212
ppm
Total dissolved mineral constituents in water.
Total Hardness as CaCO3
2015
119
119-119
ppm
Naturally occurring calcium.
Zinc
2015
0.002
.002-.002
ppm
Moderately abundant naturally occurring element used in the metal industry.

 

 

Cryptosporidium and Giardia

Contaminant
Collection
Date
Highest Level
Detected
Range of Levels
Detected
Unit of Measure
Likely Source of Contaminant
Cryptosporidium
2015
0
0
(Oo) Cysts/L
Naturally occurring in the environment
Giardia
2015
0
0
(Oo) Cysts/L
Naturally occurring in the environment

Note: Taken on samples of raw water

 

 

City of Terrell water tower on Poetry Rd.

 

 

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City of Terrell
201 East Nash St.
P.O. Box 310

Terrell, Texas 75160
972-551-6600
Metro 972-524-3332
Fax 972-551-6682

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