City of Mertzon
104 S Park View
Mertzon, TX 76941
(325) 835-5791

Water Quality Report

 

2020 Consumer Confidence Report for Public Water System CITY OF MERTZON

 

This is your water quality report for January 1 to December 31, 2020

 

For more information regarding this report contact:

 

 

 

 

 

CITY OF MERTZON provides ground water from Cravens Wells 1, 2 & 3, Tankersley Wells 1 & 4, Robertson Well all from the Edwards/Trinity Aquifer  in Irion County.

 

Name:   Michele Wardlaw  

 

 

 

 

 

 

Phone: 325-835-5791

Este reporte incluye información importante sobre el agua para tomar.  Para asistencia en español, favor de llamar al telefono (325)835-5791

 

 

Definitions and Abbreviations

Definitions and Abbreviations

 

The following tables contain scientific terms and measures, some of which may require explanation.

 

 

 

Action Level:

 

The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.

 

 

 

 

 

 

 

 

 

Avg: 

 

Regulatory compliance with some MCLs are based on running annual average of monthly samples.

 

 

 

Level 1 Assessment:

 

 A Level 1 assessment is a study of the water system to identify potential problems and determine (if possible) why total coliform bacteria have been found in our water system.

 

 

 

 

 

Level 2 Assessment:

 

 A Level 2 assessment is a very detailed study of the water system to identify potential problems and determine (if possible) why an E. coli MCL violation has occurred and/or why total coliform bacteria have been found in our water system on multiple occasions.

 

 

 

 

 

Maximum Contaminant Level 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 available treatment technology.

 

 

 

 

 

Maximum Contaminant Level Goal or MCLG:

 

The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety.

 

 

 

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

 

million fibers per liter (a measure of asbestos)

 

 

 

mrem:

 

millirems per year (a measure of radiation absorbed by the body)

 

 

 

na: 

 

not applicable.

 

 

 

NTU

 

nephelometric turbidity units (a measure of turbidity)

 

 

 

pCi/L

 

picocuries per liter (a measure of radioactivity)

 

 

 

Definitions and Abbreviations

ppb: 

 

micrograms per liter or parts per billion

 

 

 

ppm: 

 

milligrams per liter or parts per million

 

 

 

ppq

 

parts per quadrillion, or picograms per liter (pg/L)

 

 

 

ppt

 

parts per trillion, or nanograms per liter (ng/L)

 

 

 

Treatment Technique or TT:

 

A required process intended to reduce the level of a contaminant in drinking water.

 

Information about your 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 pick up substances resulting from the presence of animals or from human activity.

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.

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 taste, odor, or color of drinking water, please contact the system's business office.

You may be more vulnerable than the general population to certain microbial contaminants, such as Cryptosporidium, in drinking water.  Infants, some elderly, or immunocompromised persons such as those undergoing chemotherapy for cancer; persons who have undergone organ transplants; those who are undergoing treatment with steroids; and 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 physician or health care providers.  Additional guidelines on appropriate means to lessen the risk of infection by Cryptosporidium are available from the Safe Drinking Water Hotline (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.

 

Information about Source Water

TCEQ completed an assessment of your source water, and results indicate that some of our sources are susceptible to certain contaminants. The sampling requirements for your water system is based on this susceptibility and previous sample data. Any detections of these contaminants will be found in this Consumer Confidence Report. For more information on source water assessments and protection efforts at our system contact Michele Wardlaw/ 325-835-5791

 

 

 

Lead and Copper

Date Sampled

MCLG

Action Level (AL)

90th Percentile

# Sites Over AL

Units

Violation

Likely Source of Contamination

 

 

 

 

 

 

 

 

 

Copper

04/27/2018

1.3

1.3                                    

0.203

0

ppm     

N

Erosion of natural deposits; Leaching from wood preservatives; Corrosion of household plumbing systems.

 

 

 

 

 

 

 

 

 

Lead

04/27/2018

0

15                                     

2.03

1

ppb     

N

Corrosion of household plumbing systems; Erosion of natural deposits.

 

 

2020 Water Quality Test Results

 

 

2020

Disinfection By-Products

Collection Date

Highest Level Detected

Range of Individual Samples

MCLG

MCL

Units

Violation

Likely Source of Contamination

 

 

 

 

 

 

 

 

 

Haloacetic Acids (HAA5)

2020

10

3.1 - 10

No goal for the total

60                                     

ppb     

N

By-product of drinking water disinfection.

*The value in the Highest Level or Average Detected column is the highest average of all HAA5 sample results collected at a location over a year

 

 

 

Total Trihalomethanes (TTHM)

2020

46

11.5 - 46.2

No goal for the total

80                                     

ppb     

N

By-product of drinking water disinfection.

*The value in the Highest Level or Average Detected column is the highest average of all TTHM sample results collected at a location over a year

2020

Inorganic Contaminants

Collection Date

Highest Level Detected

Range of Individual Samples

MCLG

MCL

Units

Violation

Likely Source of Contamination

 

 

 

 

 

 

 

 

 

Arsenic

02/07/2019

1.7

1.7 - 1.7

0

10                                     

ppb     

N

Erosion of natural deposits; Runoff from orchards; Runoff from glass and electronics production wastes.

 

 

 

 

 

 

 

 

 

Barium

02/07/2019

0.051

0.051 - 0.051

2

2                                       

ppm     

N

Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits.

 

 

 

 

 

 

 

 

 

Chromium

02/07/2019

1.7

1.7 - 1.7

100

100                                    

ppb     

N

Discharge from steel and pulp mills; Erosion of natural deposits.

 

 

 

 

 

 

 

 

 

Fluoride

2020

1.23

1.23 - 1.23

4

4.0                                    

ppm     

N

Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories.

 

 

 

 

 

 

 

 

 

Nitrate [measured as Nitrogen]

2020

1

0.627 - 0.627

10

10                                     

ppm     

N

Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits.

 

2020

Radioactive Contaminants

Collection Date

Highest Level Detected

Range of Individual Samples

MCLG

MCL

Units

Violation

Likely Source of Contamination

 

 

 

 

 

 

 

 

 

Beta/photon emitters

2020

8.8

0 - 8.8

0

50                                     

pCi/L*  

N

Decay of natural and man-made deposits.

*EPA considers 50 pCi/L to be the level of concern for beta particles.

Combined Radium 226/228

2020

3

0 - 1.15

0

5                                      

pCi/L   

N

Erosion of natural deposits.

 

 

 

 

 

 

 

 

 

Gross alpha excluding radon and uranium

2020

5

2 - 5

0

15                                      

pCi/L   

N

Erosion of natural deposits.

 

 

 

 

 

 

 

 

 

Uranium

2020

4

2.1 - 3.8

0

30                                     

ug/l    

N

Erosion of natural deposits.

 

 

 

 

 

2020

Synthetic organic contaminants including pesticides and herbicides

Collection Date

Highest Level Detected

Range of Individual Samples

MCLG

MCL

Units

Violation

Likely Source of Contamination

 

 

 

 

 

 

 

 

 

Di (2-ethylhexyl) phthalate

2020

1.1

0 - 1.1

0

6                                      

ppb     

N

Discharge from rubber and chemical factories.

 

 

Disinfectant Residual

A blank disinfectant residual table has been added to the CCR template, you will need to add data to the fields. Your data can be taken off the Disinfectant Level Quarterly Operating Reports (DLQOR).

Disinfectant Residual

Year

Average Level

Range of Levels Detected

MRDL

MRDLG

Unit of Measure

Violation (Y/N)

Source in Drinking Water

 

 

 

 

 

 

 

 

 

CHLORINE FREE

2020

.70

.21mg/L-2.5mg/L

4

4

Ppm

N

Water additive used to control microbes.