2015 Annual Water Quality Report

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In 2015, your tap water met all U.S. Environmental Protection Agency (EPA) and state drinking water health standards.  The Texas Commission on Environmental Quality (TCEQ) has established public water system ratings, and Richland Hills’s water supply system received the highest achievable rating.  Superior.

 

Where Do We Get Our Drinking Water?

 

Our drinking water is obtained from GROUND AND SURFACE water sources.

 

The surface water is purchased from The City of Fort Worth.  Fort Worth uses water from Lake Worth, Eagle Mountain Lake, Lake Bridgeport, Richland Chambers Reservoir, Cedar Creek Reservoir, Lake Benbrook and the Clear Fork Trinity River.  Fort Worth owns Lake Worth.  The U.S. Army Corp of Engineers is responsible for Benbrook Lake.  The other four lakes are owned and operated by Tarrant Regional Water District. The groundwater supply is from the Trinity and Paluxy aquifers and operated by Richland Hills. The average daily water consumption for Richland Hills is approximately one million gallons.

 

 

Information For Immuno-compromised People

 

Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons such as persons with cancer under-going 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 for 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 microbial contaminants are available from the EPA’s Safe Drinking Water Hotline 1-800-426-4791.

 

 

How Can I Get Involved?

By attending a Richland Hills City Council meeting on the 1st or 3rd Tuesday of each month at 7:00 p.m. in the council chambers at 3200 Diana Drive.  If you have a question about Richland Hills’ drinking water quality, or would like to schedule a meeting for your group or organization please call (817)616-3830.

 

 

En Español

Éste reporte incluye importante información sobre el agüa potable. Si tiene preguntas ó comentarios sóbre éste reporte, puede comunicarse con una representate bilinqüe al teléfono 817- 616-3830.

 

About The Following Information

 

The following information lists all the federally regulated or monitored contaminants which have been found in Richland Hills’ drinking water in 2015. The U.S. EPA requires water systems to test for up to 100 contaminants and must meet 91 regulations for water safety and quality.   The data included is from calendar 2015 unless otherwise indicated.  In addition, because Richland Hills purchases much of its water from the City of Fort Worth, the levels are a compilation of both entities annual sampling results with the highest detected levels shown.


TCEQ Accesses Raw Water Supplies

 

The Texas Commission on Environmental Quality completed an assessment of the source water and the results indicate some sources are susceptible to certain contaminants based on human activities and natural conditions.  TCEQ classified the risk to Fort Worth’s source waters as high for most contaminants. High susceptibility means there are activities near the source water or watershed making it very likely those chemical constituents may come into contact with the source water.  It does not mean that there are any health risks present.  Tarrant Regional Water District, from which Fort Worth purchases its water, received the assessment reports.  For more information on Fort Worth source water assessments and protection efforts, contact Stacy Walters at 817-392-8203.

The sampling requirements for our water system are based on this susceptibility and previous sample data.

Detection of these contaminants will be found in this report. For more information on source water protection efforts at our system; contact us at 817-616-3830.  Further details about the source water assessments are available at the following URL: http://dww2.tceq.texas.gov/DWW/JSP/WaterSystemDetail.jsp?tinwsys_is_number=5809&tinwsys_st_code=TX&wsnumber=TX2200022%20%20%20&DWWState=TX

 

 

 

Microorganism Testing Shows Low Detections In FW Water Sources

 

Tarrant Regional Water District monitors the raw water at all Fort Worth water intake sites for Cryptosporidium, Giardia Lamblia and viruses. The source is human and animal fecal waste in the watershed.  The 2015 sampling showed low levels of Cryptosporidium, Giardia Lamblia and viruses that are common in surface water.  The table below indicates when detections were found in each raw water source.  Cryptosporidium and Giardia Lamblia monitoring is done monthly.  Virus monitoring is performed four times a year in January, March, July and September.  Viruses are treated through disinfection processes.  Cryptosporidium and Giardia Lamblia are removed through a combination of disinfection and/or filtration.

Intake Location

Cryptosporidium

Giardia Lamblia

Adenovirus

Enterovirsus

Astrovirus

Rotavirus

Richland-Chambers Reservoir

Not detected

Not detected

January

Not detected

Not detected

Not detected

Cedar Creek Lake

Not detected

Not detected

January & March

Not detected

Not detected

Not detected

Lake Benbrook

Not detected

Not detected

January & March

Not detected

Not detected

Not detected

Eagle Mountain Lake

June

June

January

September

Not detected

Not detected

Lake Worth

Not detected

Not detected

January & March

Not detected

Not detected

Not detected

Clear Fork of Trinity River

Not detected

Not detected

January & March

Not detected

Not detected

Not detected

 

                                

 

 

Why Are There Contaminants In My Drinking Water?

 

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, bacteria and protozoans that 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 stormwater runoff, industrial or domestic wastewater discharges, oil and gas production, mining or farming.

•    Pesticides and herbicides that may come from a variety of sources such as agriculture, urban stormwater 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 stormwater runoff and septic systems.

•    Radioactive  contaminants  that  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 that limit the amount of certain contaminants in water provided by the public water systems.  Food and Drug Administration (FDA) regulations establish limits for contaminants in bottled water that must  provide protection for public health.

 


Abbreviations Used In Tables:

 

•    Maximum Contaminant Level (MCLI) – the highest permissible level of a contaminant in drinking water, MCLS are set as close to the MCLG’s as feasible using the best available treatment.

•    Maximum Contaminant Level Goal (MCLG) – the level of a contaminant in drinking water below which there is no known or expected health risk.  MCLG’s

allow for a margin of safety.

•    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 contaminants.

•    Maximum Residual Disinfectant Level (MRLD) – 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.

•    Treatment Technique (TT) – a required process intended to reduce the level of contaminants 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.

•    N/A – not applicable

•    AVG – Regulatory compliance with some MCL’s are based on running annual average of monthly samples.

•    NTU – Nephelometric Turbidity Units

•    MFL – million fibers per liter (a measure of asbestos)

•    ppb – parts per billion, or micrograms per liter (µg/L)

•    pCi/L – picocuries per liter (a measure of radioactivity)

•    ppt – parts per trillion, or nanograms per liter

•    ppm – parts per million, or milligrams per liter (mg/L)

•    ppq – parts per quadrillion, or picograms per liter

 


 

 


 

 

Lead and Copper


2015 Drinking Water Quality Test Results


 

Year

 

Contaminant

th

The 90

Percentile

Number of Sites Exceeding Action Level

 

Action

Level

 

Unit of

Measure

 

Source of Contaminant

 

2013

 

Lead

 

0.00151

 

0

 

0.015

 

mg/L

Corrosion of household plumbing systems, erosion of natural

deposits

 

2013

 

Copper

 

0.217

 

0

 

1.3

 

mg/L

Corrosion of household plumbing systems, erosion of natural deposits, leaching from wood preservatives.

If present, elevated levels of lead can lead to 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 private plumbing.  This water supply 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 two 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://water.epa.gov/drink/info/lead/index.cfm

 

Contaminant

 

Measure

 

MCL

 

2015 Highest single result

Lowest monthly %

of samples ≤0.3

NTU

 

MCLG

 

Common Sources of Substance

Turbidity

NTU

TT

0.50

 

100%

N/A

Soil runoff

Turbidity is a measure of the cloudiness of water. It is monitored because it is a good indicator of the effectiveness of the filtration system in Fort Worth’s

water.

Contaminant

Measure

MCL

2015 Level

Range

MCLG

Common Sources of Substance

 

Total Coliforms (including fecal coliform & E. coli)

 

% of positive samples

Presence in

5% or less of monthly samples

 

2% of Fort Worth monthly samples

 

0.0 to

2%

 

 

0

 

Coliforms are naturally present in the environment as well as feces; fecal coliforms and E. coli only come from human and animal fecal waste

Richland Hills’ monthly tests found no total coliform bacteria in 2015

Maximum Residual Disinfectant Level

 

Year

 

Contaminant

Average

Level

Minimum

Level

Maximum

Level

 

MRDL

 

MRDLG

 

Unit of Measure

 

Source of Contaminant

2015

Chloramines

1.64

 

0.50

4.0

4.0

4.0

ppm

Water additive used to control microbes

Contaminant

High

Low

Average

MCL

MCLG

Common Sources of Substance

Total Organic Carbon₁

1

1

1

TT = % removal

N/A

Naturally occurring

₁Testing for Total Organic Carbon is used to determine disinfection by-product precursors. Fort Worth was in compliance with all monitoring and treatment technique requirements for disinfection by-product precursors.


 

 

 

Contaminant

Measure

MCL

2015 Level

Range

MCLG

Common Sources of Substance

Cyanide

 

ppb

200

145

13.4 to 145

2

Erosion of natural deposit

 

Gross Beta particles & photon emitters₁

 

pCi/L

 

50

 

5.6

 

4 to 5.6

 

N/A

Decay of natural and man-made deposits of certain minerals that are

radioactive and may emit forms of radiation known as photon and beta

radiation

Radium 226/ 228

pCi/L

5

1

1 to 1

0

Erosion of natural deposits

 

Arsenic

 

ppb

 

10

 

1.70

 

0.96 to 1.70

 

0

Erosion of natural deposits; runoff from orchards; runoff from glass and

electronics production wastes

Atrazine

ppb

3

0

0

3

Runoff from herbicide used on row crops

 

Barium

 

ppm

 

2

 

0.07

 

0.05 to 0.07

 

2

Discharge of drilling wastes; discharge from metal refineries; erosion of

natural deposits

Chromium(Total)

ppb

100

1

0.87 to 1

.87

100

Discharge from steel and pulp mills, erosion of natural deposits

 

Fluoride

 

ppm

 

4

 

1.82

 

1.58 to 1.82

 

4

Water additive which promotes strong teeth; erosion of natural deposits;

discharge from fertilizer and aluminum factories

Nitrate (measured as

Nitrogen)

 

ppm

 

10

 

0.568

 

0.039 to 0.568

 

10

Runoff from fertilizer use/ leaching from septic tanks, sewage; erosion of natural deposits

Nitrite (measured as

Nitrogen)

 

ppm

 

1

 

<0.004

 

<0.004

 

1

Runoff from petroleum and metal refineries; erosion of natural deposits;

discharge from mines

 

Antimony

 

ppb

 

6

 

0.21

 

0 to 0.21

 

6

Discharge from petroleum refineries, fire retardants, ceramics, electronics,

solder, test addition

Bromate

ppb

10

0.08

0 to 0.08

0

By-product of drinking water disinfection

Haloacetic Acids (HAA5)

ppb

60

15.00

2.2 to 15.00

N/A

By-product of drinking water disinfection

Total Trihalomethanes

ppb

80

61.4

7.99 to 61.4

N/A

By-product of drinking water disinfection

₁Because of historically low levels of radionuclides in Fort Worth’s water, the results are from 2014.

 

 

 

In the water loss audit submitted to the Texas Water Development Board for the time period of January 2015 to December 2015, our system lost an estimated

46,478,173 gallons. If you have any questions about the water loss audit, please call (817)616-3830.


 

 

Unregulated Disinfection By-products

Unregulated contaminants are those for which EPA has not established drinking water standards. The purpose of unregulated contaminant monitoring is to assist EPA in determining the occurrence of unregulated contaminants in drinking water and whether future regulation is warranted.

 

Contaminant

 

Measure

Range of

Detects

2015

Level

 

MCL

 

MCLG

 

Common Sources of Substance

Chloral Hydrate

ppb

0.30 to 0.67

0.67

Not regulated

None

By-product of drinking water disinfection

Bromoform

ppb

<1.00 to 9.58

9.58

Not regulated

None

 

By-products of drinking water disinfection; not regulated individually; included in Total Trihalomethanes

Bromodichloromethane

ppb

<1.00 to 11.10

11.10

Not regulated

None

Chloroform

ppb

<1.00 to 48.00

48.00

Not regulated

None

Dibromochloromethane

ppb

<1.00 to 4.55

4.55

Not regulated

None

Monochloroacetic Acid

ppb

<2.00 to 4.10

4.10

Not regulated

None

 

 

 

By-products of drinking water disinfection; not regulated individually; included in Haloacetic Acids

Dichloroacetic Acid

ppb

<1.00 to 9.70

9.70

Not regulated

None

Trichloroacetic Acid

ppb

<1.00 to 2.00

2.00

Not regulated

None

Monobromoacetic Acid

ppb

<1.00 to 1.00

1.00

Not regulated

None

Dibromoacetic Acid

ppb

<1.00 to 2.80

2.80

Not regulated

None

Bromochloracetic Acid

ppb

<1.00 to 4.60

 

4.60

Not regulated

None

 

 

Secondary Constituents

These items do not relate to public health but rather to the aesthetic effects. These items are often important to industry.

Item

Measure

2015 Range

Bicarbonate

ppm

96.4 to 120

Calcium

ppm

33.3 to 42.1

Chloride

ppm

12.5 to 25.9

Conductivity @ 25C

µmhos/cm

333 to 427

pH

units

8.0 to 8.6

Magnesium

ppm

3.55 to 6.79

Sodium

ppm

12.3 to 28.5

Sulfate

ppm

20.2 to 29.0

Total Alkalinity as CaCOз

ppm

96.4 to 120

Total Dissolved Solids

ppm

163 to 234

Total Hardness as CaCOз

ppm

101 to 133

Total Hardness in Grains

grains/gallon

6 to 8

 


 

 

 

Data gathering to determine if more regulation needed


Water utilities in the United States monitor for more than 100 contaminants and must meet 91 regulations for water safety and quality.

But should other contaminants be regulated?  The

1996 Safe Drinking Water Act amendments require

that once every five years EPA issue a new list of not more than 30 unregulated contaminants to be monitored by public water systems.     This monitoring provides a basis for future regulatory actions to protect public health.

The  first   Unregulated  Contaminant  Monitoring Rule (UCMR 1) was published on Sept. 17, 1999, the  second  (UCMR  2)  was  published  on  Jan.  4,

2007 and the third (UCMR3) was published on May

2, 2012.   Fort Worth did not detect any of the contaminants in the UCMR 1 and UCMR 2 testing. The third Unregulated Contaminant Monitoring Rule    included assessments for 21 chemical contaminants, 7 hormones and two viruses.   The virus testing did not impact water purchased from Fort  Worth or Richland Hills’ groundwater.  This testing was limited to small groundwater systems that do not disinfect.

UCMR benefits the environment and public health by providing EPA and other interested parties with scientifically valid data on the occurrence of these contaminants in drinking water. Health information is necessary to know whether these contaminants pose a health risk.

Public   water   systems   sampled    for   these contaminants for four consecutive quarters from

2013 to 2015.  Fort Worth’s sampling began in June 2013 and Richland Hills began sampling in March of 2015. The results shown are for the first two quarters of sampling in Richland Hills in 2015.   The final testing results will appear in next year’s annual water quality report.


Richland Hills test results in this chart are from March and June of 2015. 

 

Contaminant

 

Measure

Range of

Detects

2015

Level

 

MRL

 

Common Sources of Substance

 

Vanadium

 

ppb

 

<0.2 to 1.9

 

1.9

 

0.2

Naturally occurring elemental metal; used as vanadium pentoxide which is a chemical intermediate and a catalyst

 

Molybdenum

 

ppb

 

1.38 to 2.84

 

2.84

 

1

Naturally occurring element found in ores and present in plants,

animals and bacteria; commonly used form molybdenum trioxide

is used as a chemical reagent

 

Strontium

 

ppb

 

150 to 261

 

261

 

0.3

Naturally occurring element; historically, commercial use of strontium has been in the faceplate class of cathode-ray tube televisions to block x-ray emissions

 

Chromium¹

 

ppb

 

not detected

 

<0.2

Naturally occurring element; used in making steel and other alloys; chromium-3 or -6 forms are used for chrome plating; dyes and pigments, leather tanning and wood preservation

Chromium-6

ppb

<0.03 to 0.06

0.06

0.03

 

Chlorate

 

ppb

 

<20 to 23.5

 

23.5

 

20

Agricultural defoliant or desiccant; disinfection byproduct; and used in production of chlorine dioxide

¹Total Chromium, the sum of Chromium in all its valence states, is already regulated in drinking water. As part of UCMR 3, EPA

requires testing for Total Chromium in the same samples used to test for Chromium 6, which is on the UCMR 3 list. The value differs from what is listed in the previous table (Chromium Total) because of different sampling periods. The MCL for EPA’s current total chromium regulation was determined based upon the health effects of Chromium 6.

 

UCMR 3 contaminants not detected

Chemicals

1,2,3-trichloropropane                                            perfluorohexanesulfonic acid (PFHxS)

1,3-butadiene                                                         perfluoroheptanoic acid (PFHpA)

chloromethane (methyl chloride)                          perflourobutanesulfonic acid (PFBS)

1,1-dichloroethane                                                 Hormones

bromomethane (methyl bromide)                         17-ß-estradiol chlorodifluoromethane (HCFC-22)                                                               17-α-ethynylestradiol bromochloromethane (Halon 1011)                                                           estriol

1,4-dioxane                                                             equilin

cobalt                                                                      estrone perfluorooctanesulfonic acid (PFOS)                                                                                testosterone perfluorooctanoic acid (PFOA)                                                                                4-androstene-3,17-dione perfluorononanoic acid (PFNA)                                                             Viruses

                                                                                                                        enteroviruses and noroviruses

 

Additional Information:

http://water.epa.gov/lawsregs/rulesregs/sdwa/ucmr/ucmr3/

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